AGRICULTURAL SCIENCE is a peer-reviewed, scientific journal published by Faculty of Agriculture Merdeka University Surabaya, E-ISSN: 2597-8713 (Online) and ISSN: 2598-5167 (Print). and with DOI Prefix number: 10.55173. The aims of the journal are to publish and disseminate high quality, original research papers and article review in plant science i.e. agronomy, horticulture, plant breeding, soil sciences, plant protection, agricultural technology, agricultural agribusiness, agricultural economy and other related fields related to agriculture. AGRICULTURAL SCIENCE is published twice a year. We accept submission from all over the world. All submitted articles shall never been published elsewhere, original and not under consideration for other publication. Already have a Username/Password for Agricultural Science? Go to LOGIN Need a Username/Password? Go to REGISTRATION Download TEMPLATE and AUTHOR GUIDELINE
Faculty of Agriculture, Merdeka University Surabaya, Indonesia
Growth Response of Garlic (Allium sativum L.) to the Application of Supermes Liquid Organic Fertilizer Dosage
Garlic (Allium sativumL.) is a horticultural commodity with high economic value in Indonesia. For optimal growth and yield, garlic plants require macronutrients and micronutrients from fertilization. Micronutrients can be met, for example, by providing organic liquid fertilizer. This study aims to determine the effect of Supermes Liquid Fertilizer dosage application on garlic plant growth. The garlic varieties planted are local varieties using a 1-factor Randomized Block Design with 6 fertilizer dosage treatments: 1) 0 ml/L; 2) 1 ml/L; 3) 2 ml/L; 4) 3 ml/L; 5) 4 ml/L and 6) 5 ml/L. Supermes liquid organic fertilizer. Each treatment was repeated three times: Garlic Response to Supermes Liquid Fertilizer, therefore, there were 18 treatment trials. The results of the Supermes POC fertilizer dosage application did not show significant differences in plant height and number of leaves. However, there was a significant increase in the number of leaves and plant height at each increase in fertilizer dosage. Further research on the application of Supermes POC dosage with various higher concentrations is needed to obtain superior results.
Copyright (c) 2026 Agricultural Science https://creativecommons.org/licenses/by-sa/4.0
Fermented Jelly Candy, Aspects of Lime Mixing Percentage On Its Consistency And Sensory Properties
This study aims to determine the effect of the combination of fermented noni and lime on consistency and sensory properties. The design used was a completely randomised design (CRD) with one factor, namely the ratio of fermented noni and lime, which were P1 50:50, P2 60:40, P3 70:30, P4 80:20, and P5 90:10. The study was conducted at the Integrated Agroindustry Laboratory, Faculty of Vocational Studies, Untag Surabaya. Data collection consisted of organoleptic test data from 30 panelists and analysis results, namely physical consistency analysis in the form of texture testing using a penetrometer. The analysis results indicate that the optimal formulation for fermented noni jelly candy, serving as a reference for producers to manufacture consumer-preferred fermented noni jelly candy ( ), is a 50:50 ratio of fermented noni to lime.
Characterization of Mangoes In Cirebon Using The Single Nucleotide Polymorphism Method (Snp)
Mango (Mangifera indica L.) is a leading horticultural commodity in Cirebon Regency, boasting a diverse array of local varieties with distinct fruit characteristics. Varietal identification has traditionally been based on morphological characteristics, but this method is often inaccurate due to environmental factors. Therefore, a more stable and objective molecular-based approach is needed, one of which is Single Nucleotide Polymorphism (SNP) analysis. This study aims to characterize the genetic diversity of mangoes in Cirebon using SNP markers as a basis for kinship information and potential variety development. The research methods included leaf sampling from several local Cirebon mango varieties, genomic DNA isolation, DNA amplification using the Polymerase Chain Reaction (PCR) method, and sequencing analysis to identify SNP variations. The SNP data obtained were analyzed to assess genetic diversity and kinship among mango varieties. The results showed genetic differences between local mango varieties that could be clearly distinguished using SNP markers. In conclusion, SNP-based characterization of Cirebon mango is effective for revealing genetic diversity and can serve as a basis for variety identification, preservation of local germplasm, and support for mango breeding and development programs in the Cirebon region.
Analysis of Women Empowerment through Sustainable Farming Education: Evidence from Karangcangkring Village, Indonesia
Women play a strategic role in the agricultural sector and family food security, yet they still face limited access to agricultural education, technology, and decision-making. This situation contributes to low levels of empowerment of female farmers, particularly in rural areas. This study aims to analyze women's empowerment through sustainable agricultural education, using a case study in Karangcangkring Village, Gresik Regency, Indonesia. The study employed a case study approach with descriptive qualitative methods supported by simple quantitative data. Data collection was conducted through participant observation, semi-structured interviews, pre- and post-activity questionnaires, and focus group discussions. The analysis of women's empowerment was conducted with reference to the cognitive, economic, social, and institutional dimensions. The results indicate that sustainable agricultural education has a positive impact on increasing the empowerment of female farmers. The most significant improvements occurred in the cognitive and social dimensions, demonstrated by increased agricultural technical knowledge, self-confidence, and women's active participation in group activities and decision-making. The economic and institutional dimensions also showed positive, albeit gradual, developments, particularly in production management, post-harvest management, and women's involvement in agricultural group structures. Overall, sustainable agricultural education not only improves the technical capacity of women farmers but also strengthens their agency, social participation, and position within rural agricultural livelihood systems. This research confirms that the integration of gender-sensitive agricultural education is a crucial strategy for empowering women farmers and promoting inclusive and sustainable agricultural development at the village level.
women's empowerment; sustainable agricultural education; women farmers; food security; rural Indonesia.
Intensity of Thrips Attacks On Eggplant As A Result of Plant-Based Pesticides Treatment
Eggplant (Solanum melongena L.) is a vegetable that is quite popular among various groups in Indonesia. Eggplant production in Indonesia in 2023 reached 699,896 tons and decreased to 675,397 tons in 2024 (BPS, 2025). With this level of productivity, eggplant plants are more susceptible to pests, one of which is Thrips. Thrips palmi usually attacks the leaves, flowers, and fruit. Damage caused by Thrips attacks on eggplant plants is characterized by silvery spots and physiological disorders on the leaves, leading to the growth of fungi that spread disease. This study was conducted in Nanggela Village, Mandirancan District, Kuningan Regency, at an altitude of ±200-300 m above sea level with a tropical climate ranging from 24°C to 33°C and an average temperature of 28°C. This study used a randomized block design (RBD) consisting of types of plant-based pesticides and their concentrations, namely clove leaf extract, garlic extract, and lemongrass extract, each of which had concentrations of 50ml/L water, 100ml/L water, and 150ml/L water. The results of the experiment showed that plant-based pesticides from garlic extract with a concentration of 100 ml/L of water had a significant effect on the intensity of attacks and damage caused by thrips, plant height, number of leaves, and crop yield in eggplant plants.
Comparative Income Analysis of Partner and Non-Partner Shallot Farmers in Cirebon
Reality shows that there is an income gap between farmers partnered with PT Tani Bawang Sejahtera and non-partner farmers, even though ideally partnerships should be able to promote equitable profits. This study aims to: 1) analyze the partnership pattern between PT Tani Bawang Sejahtera and its partner farmers; and 2) analyze the income differences between PT Tani Bawang Sejahtera partner farmers and non-partner farmers. This research was conducted in Babakan Subdistrict, Cirebon Regency, with the research process taking place from October 2025 to January 2026. The research design is considered a comparative quantitative study with a survey research technique. The population of this study consists of red onion farmers who are both partners and non-partners. Data analysis was conducted using a two-sample independent mean difference test (independent sample t-test). The study results showed that partner farmers had an average production cost of IDR. 175,610,184, revenue of IDR. 445,726,071, and income of IDR. 270,115,887, while non-partner farmers had a production cost of IDR. 174,596,638, revenue of IDR. 292,063,141, and income of IDR. 117,466,503. Based on the difference test analysis using the independent sample t-test, the significance was found to be 0.000 and the mean difference was positive, indicating a difference between the incomes of partner and non-partner farmers, with partner farmers having a higher average income.
The Effect of Controlled Release Fertilizer On The Growth of Oil Palm (Elaeis Guineensis Jacq.) Seedlings In The Pre-Nursery
Improving oil palm production can be achieved through better cultivation management, including proper nursery practices. The quality of seedlings at the early growth stage plays a crucial role in determining field performance, making efficient fertilization essential from the pre-nursery phase. One of the fertilization technologies developed to improve nutrient uptake efficiency is the application of Controlled Release Fertilizer (CRF). This study aimed to evaluate the effect of CRF compared with conventional NPK fertilizer on the growth of oil palm seedlings. The experiment was conducted for three months using a Completely Randomized Design (CRD) with four treatments: no fertilizer (P0), NPK (P1), NPK + CRF (P2), and CRF (P3). Data were analyzed using ANOVA at a 5% significance level, followed by the LSD test when significant differences were detected. The results showed that treatments P2, P3, and P4 produced better growth responses than the control in all observed parameters, including plant height, number of leaves, leaf greenness, stem diameter, and leaf area. Fertilizer application significantly improved seedling growth, while CRF, either applied alone or in combination with NPK, produced growth responses comparable to conventional fertilization. These findings indicate that CRF has the potential to be used as an effective fertilization alternative to support oil palm seedling growth in the pre-nursery.
oil palm, Controlled Release Fertilizer (CRF), pre-nursery.
Effectiveness of Insecticide–Surfactant Combinations Against Thrips palmi on Eggplant
Eggplant (Solanum melongena L.) is an important horticultural crop in Indonesia; however, its productivity is frequently constrained by thrips infestation (Thrips palmi). This study aimed to evaluate the effectiveness of combinations of insecticide active ingredients and Ronstick surfactant in reducing the intensity of T. palmi attacks on eggplant plants. The research was conducted in Ender Village, Pangenan District, Cirebon Regency, from May to August 2025 using a Randomized Block Design with seven treatments and three replications. Treatments consisted of abamectin, dinotefuran, and their combinations, each applied with Ronstick surfactant at concentrations of 1–2 ml/L, and a control without insecticide. The results showed that insecticide–surfactant combinations significantly reduced thrips population and attack intensity compared to the control. The combination of abamectin + dinotefuran with surfactant at 2 ml/L was the most effective treatment. These findings indicate that appropriate insecticide–surfactant combinations can enhance thrips control efficiency while supporting more rational insecticide use.
Growth Response of Robusta Coffee (Coffea canephora) Cuttings to Arbuscular Mycorrhizal Fungi Dosage Application in Ultisol
Coffee production in Lampung Province faces significant challenges due to the dominance of Ultisol soils characterized by low fertility, high acidity, and phosphorus fixation. This study aimed to determine the optimal dosage of arbuscular mycorrhizal fungi (AMF) inoculum to enhance the growth of robusta coffee (Coffea canephora) cuttings in Ultisol growing media. The experiment was conducted at the State Polytechnic of Lampung from August to October 2025 using a Randomized Complete Block Design (RCBD) with four treatments: M0 (control without mycorrhizal), M1 (10 g mycorrhizal inoculum per plant), M2 (20 g per plant), and M3 (30 g per plant). Each treatment was replicated four times with three plants per experimental unit. Growth parameters measured included leaf number, plant height, and root volume at 0, 3, 9, and 12 weeks after transplanting. Results showed that the M1 treatment consistently produced superior growth performance across all parameters. At 12 weeks after transplanting, M1 achieved 21.44 leaves (53.1% increase), 38.69 cm plant height (48.7% increase), and 44.67 cm³ root volume (108.3% increase) compared to the control. Higher dosages (M2 and M3) showed diminishing returns, indicating excessive inoculum application may cause unfavorable carbon allocation dynamics. This study concludes that 10 g mycorrhizal inoculum per plant is the optimal dosage for enhancing robusta coffee cutting growth in Ultisol nursery systems.
arbuscular mycorrhizal fungi, Coffea canephora, phosphorus mobilization, Ultisol soil, vegetative propagation
Quality Assessment of Arabica and Robusta Coffee Under Different Post-Harvest Processing Methods Using Solar Dryer Technology
Post-harvest processing methods significantly influence coffee quality, yet traditional sun-drying techniques require 15-17 days and often result in inconsistent quality, particularly during rainy seasons. This study investigated the effects of four post-harvest processing methods (Natural, Full Wash, Semi Wash, and Honey) on quality characteristics of Arabica Sigararutang and Robusta Toraja coffee varieties using solar dryer dome technology. The research employed a factorial design with five replications for each treatment combination, resulting in 40 experimental plots. Coffee cherries were harvested from West Sumatra plantations at elevations of 1050-1150 masl for Arabica and 780-900 masl for Robusta. Quality assessment encompassed physical parameters (fresh weight, drying duration, color changes, dry weight, and yield), chemical parameters (moisture content, caffeine content, and pH level), and sensory parameters (color intensity, aroma, and overall acceptance) evaluated by certified panelists using 1-7 scoring scales. Results demonstrated that the Honey process yielded superior overall quality for both varieties, achieving highest sensory scores for color (5.30-5.35), aroma (5.36-6.21), and overall acceptance (3.81-4.64). The Semi Wash process exhibited the most efficient drying performance, requiring only 22.7-24.6 days compared to 33.4-32.9 days for Natural process. All treatments successfully achieved optimal moisture content (11.3-12.3%) using solar dryer dome technology. Arabica beans demonstrated higher fresh weight and caffeine content than Robusta across all processing methods. The Honey processing method combined with solar dryer dome technology represents an optimal approach for enhancing coffee quality and market competitiveness in small and medium-scale enterprises.
coffee processing, Arabica, Robusta, solar dryer dome, sensory quality
Impact of Petroleum Industry Activities on Basic Soil Physical and Chemical Properties: A Case Study PT Pertamina EP Cepu Bojonegoro, Indonesia
Petroleum industrial activities have the potential to alter soil physical and chemical properties through various contamination mechanisms and operational processes. This research aimed to evaluate the impact of PT Pertamina EP Cepu petroleum industrial activities on basic physical and chemical soil properties in areas surrounding operations. The study was conducted from October to November 2025 using a descriptive survey approach with purposive sampling method. Soil samples were collected at 0-20 cm depth from 12 sampling points located within a ± 200-meter radius in four cardinal directions (North, East, South, and West) from the operational center. Physical properties analyzed included soil texture, bulk density, and porosity, while chemical properties included pH, C-Organic, total N, available P, exchangeable K, and electrical conductivity (EC). Data analysis was performed descriptively by comparing laboratory measurement results with soil property assessment criteria established by Balai Penelitian Tanah to categorize each parameter and identify soil quality degradation levels in the research area. The results showed that soil in the research area had clay texture (67% clay fraction), high bulk density (1.47 ± 0.21 g/cm³), moderate porosity (44.5%), neutral pH (6.7 ± 0.2), very low C-Organic (0.99 ± 0.07%) and total N (0.07 ± 0.01%), high available P (28.64 ± 2.22 mg/kg) and exchangeable K (0.94 cmol(+)/kg), and moderately high EC (3.9 dS/m). These findings indicate that petroleum operational activities have caused soil quality degradation, particularly through soil compaction and reduction in organic matter content. Appropriate soil management interventions, including organic matter addition, traffic management, and contamination remediation, are essential to restore and maintain soil quality in petroleum operational areas.
Copyright (c) 2025 Agricultural Science https://creativecommons.org/licenses/by-sa/4.0
The Effect of Seaweed Extract Biostimulant on Growth and Yield of Eggplant (Solanum melongena L.)
Eggplant possesses high economic value with various nutritional contents such as minerals and vitamins that are benefical for human health. However, productivity decline due to environmental stress poses a challenge in global market demand fulfillment. The application of biostimulants represents one solution to enhance the growth and yield of eggplant (Solanum melongena L.). This research aimed to examine the effect and optimal concentration of biostimulant application on eggplant plants. The study was conducted in cultivation fields located in Nanggela Village, Kuningan Regency, West Java, from July to October 2025. This experiment used Randomized Block Design (RBD) with nine biostimulant concentration treatments and three replications, resulting in 27 experimental plots, each measuring 3,5 x 1,5 meters, consisting 14 plants and a 50 cm spacing between plots, 50 cm spacing between plants, and 60 cm spacing between rows. The vegetative phase observation parameters included root length, root volume, plant height, stem diameter, number of leaves, leaf area, leaf area index, plant dry weight, and relative growth rate, while the generative phase parameters included number of fruits, fruit diameter, fruit length, fruit weight, and yield weight per plant. The data obtained were analyzed using one-way analysis of variance (ANOVA), followed by the Scott-Knott cluster analyses to determind significant differences among treatments. The results showed that biostimulants had a significant effect on growth and development aspects. Specifically, biostimulant application significantly affected both vegetative and generative parameters. The best vegetative characteristics were obtained in K1 (1,0 ml/l), K2 (1,5 ml/l), and K3 (2,0 ml/l) treatments, while the optimal generative characteristics were produced in K1 (1,0 ml/l), K2 (1,5 ml/l), K4 (2,5 ml/l), and K7 (4,0 ml/l) treatments.
Gapoktan Partnership as a Mediator of Social Capital and Motivation for Sustainable Ipomoea reptans Poir Farming
The cultivation of Ipomoea reptans Poir in Balongpanggang District, Gresik Regency, serves as an adaptive response to post-harvest drought in rice fields and reflects the potential for sustainable agriculture. This study aims to analyse the mediating role of the Farmers’ Group Association (Gapoktan) in the relationship between social capital and farmer motivation towards sustainable farming practices. A mixed-methods design was employed, involving quantitative data from 35 farmers using a census approach and qualitative data from 39 Focus Group Discussion (FGD) participants. The quantitative data were analysed using Structural Equation Modelling–Partial Least Squares (SEM–PLS), while the qualitative data were examined thematically. Results revealed that social capital had a significant positive effect on Gapoktan partnerships (O = 0.482, p < 0.001), and Gapoktan partnerships significantly influenced sustainable agriculture (O = 0.516, p < 0.001). Mediation analysis confirmed that Gapoktan strongly mediated the relationship between social capital and sustainable agriculture (O = 0.249, p = 0.001). However, farmer motivation had a positive but insignificant effect on both Gapoktan partnerships (p = 0.190) and sustainable agriculture through Gapoktan mediation (p = 0.279). The study concludes that sustainable I. reptans Poir farming is primarily driven by social capital channelled through Gapoktan partnerships, while motivation alone is insufficient without institutional reinforcement. Strengthening Gapoktan’s strategic role in collective marketing, capital access, and knowledge transfer is essential to transform existing social solidarity into a sustainable, inclusive agribusiness ecosystem.
Effectiveness of Neem Leaf Extract And Packaging Types On The Quality of Cilembu Variety Sweet Potato
Proper postharvest handling is a critical factor in maintaining the quality of sweet potatoes (Ipomoea batatas L). This research evaluated the effectiveness of neem leaf (Azadirachta indica A. Juss) extract concentration and packaging type in inhibiting sprouting, reducing infestation by the sweet potato weevil (Cylas formicarius), and maintaining weight loss, starch content, and total dissolved solids in Cilembu variety sweet potatoes during storage. This experiment used a Completely Randomized Design with three replications, consisting of neem extract concentrations (0, 10, 20 ml/L) and packaging types (jute sacks, polinet nets, bamboo baskets). Neem leaves contain azadirachtin compounds which can preserve the physiological quality of sweet potatoes from pest attacks. The higher the concentration, the higher the level of effectiveness in maintaining and preserving the physiological quality of sweet potatoes during storage therefore, this study tested neem leaf extract concentrations of (0, 10, 20 ml/L). Results showed that the combination of 10 ml/L and 20 ml/L neem leaf extract with poly-net packaging yielded the best overall quality. This treatment significantly reduced sweet potato weevil infestation by up to 99.4% and suppressed weight loss by up to 33.8%, while maintaining more stable starch content and total soluble solids. The 10 ml/L and 20 ml/L neem leaf extract demonstrated optimal insecticidal properties, while the poly-net packaging provided the best ventilation for releasing respiratory heat and controlling moisture accumulation compared to jute sacks and bamboo baskets. In conclusion, the combination of 10 ml/L and 20 ml/L neem leaf extract with poly-net packaging is effective in maintaining the quality of Cilembu variety sweet potatoes during storage.
Physical Properties and Panelists’ Preference for Purple Sweet Potato Flour Flakes with Okara Flour Substitution
Purple sweet potato flour is a promising flake component due to its elevated carbohydrate and antioxidant levels. Nonetheless, its very low protein content requires the incorporation of supplementary ingredients, such as okara flour, which is abundant in protein and fiber, to enhance the nutritional profile of the final product. This study investigates the impact of replacing purple sweet potato flour with okara flour on flakes' physical properties (texture and rehydration capacity) and sensory acceptance (organoleptic qualities). A one-factor Completely Randomized Design (CRD) was employed with five replacement levels: P0 (100%:0%), P1 (90%:10%), P2 (80%:20%), P3 (70%:30%), and P4 (60%:40%). The results showed that the substitution markedly influenced texture (p = 0.016) and rehydration capacity (p = 0.000), with increased okara levels resulting in firmer flakes and enhanced rehydration. Substitution markedly affected panelists' preferences for taste (p = 0.000), texture (p = 0.000), and color (p = 0.025), but not scent (p = 0.725). Elevating okara levels often diminished preference for flavor and texture, although color was favored at elevated okara concentrations. The optimal formulation was achieved with a 20% replacement of okara.
Inventory Management as a Driver of Supply Chain Performance in Agricultural Value Chains: A Lean Theory Perspective from Kenya
Inventory management is a critical supply chain practice with significant implications for supply chain performance, especially in agricultural value chains that face challenges of perishability, demand fluctuations, and resource constraints. Guided by Lean Theory, this study examined the effect of inventory management on supply chain performance within Kenya’s agricultural supply chains using a quantitative explanatory research design. Primary data were collected through a structured questionnaire administered to employees across agricultural directorates. Reliability analysis confirmed strong internal consistency (α = 0.743 for inventory management; α = 0.850 for supply chain performance). Principal component analysis validated construct measurement (KMO = 0.769, p < 0.001). Regression results showed that inventory management significantly and positively predicts supply chain performance (β = 0.265, t = 6.120, p < 0.001), highlighting its role as a key determinant of efficiency and competitiveness. The study concludes that inventory management practices such as vendor-managed inventory, just-in-time replenishment, and stock transparency are indispensable for enhancing supply chain performance in Kenya’s agricultural sector. It recommends that policymakers and managers invest in Lean-inspired inventory strategies to optimize resource use, reduce waste, and build resilient agricultural supply chains.
inventory management, supply chain performance, Lean Theory, agricultural supply chains, Kenya
Corn Cob Compost An Environmentally Friendly Base Fertilizer Solution PT Nuansa Cipta Indowarna Mandiri
This demonstration plot study of the use of corn cake compost as a base fertilizer for corn farming on rain-fed land owned by PT. Nuansa Cipta Indowana Mandiri on Jl. Lumbang km. 07, Sumberkramat Village, Tongas District, Probolinggo Regency aims to analyze the socio-economic impacts of utilizing the company's abandoned/idle rain-fed land. This idle land utilization is intended to increase farm income and contribute to national harvest yields as a basis for food security. It also aims to determine the economic value of corn cake industrial waste as compost that can improve soil fertility. The data used are secondary data in the form of Corn Cake Flour Analysis results and primary data sourced from the demonstration plot data on the use of Corn Cake Flour compost as a base fertilizer for corn planting in rain-fed rice fields owned by PT. Nuansa Cipta Indowarna Mandiri in Sumber Kramat Village, Tongas District, Probolinggo Regency.The method used in this study was purposive sampling with observation, interviews, and documentation. Data were collected/processed and then analyzed using quantitative descriptive methods. The results of the study indicate that the abandoned/idle land of PT Nuansa Cipta Indowarna Mandiri is rain-fed land that has been planted with rice twice since 2009, namely in 2014 and in 2025 in a demonstration plot using corn filter cake compost, the land was planted with corn. Planting corn on a 3,000 m² plot produced 1,400 kg of dry corn kernels, with a total cost of IDR 6,713,000, - generating income of IDR 1,267,000, - the harvest yield decreased because 20% of the corn seedlings died due to heavy rain for 4 days. The R/C ratio of 1.19 is greater than 1, which means it is economically feasible. Socially, corn farming on the idle/abandoned land can absorb labor, provide cattle feed in the form of corn stalks for farm laborers harvesting, and contribute to corn harvest yields that can increase the number of corn harvests nationally. Corn Flour which is sugar waste from corn as the basic ingredient can be used as organic fertilizer because it has an organic C content of 25.56% (SNI Solid Organic Fertilizer Organic C content >15%) and a very low Fe content, namely available Fe 83.3 and total Fe 366 (SNI maximum available Fe 500 and maximum total Fe 15,000).Key words: Rainfed lowland farmers, income contribution, side job.
The Role of Mangroves In Mitigation of Ecosystem Degradation Threats In Gunung Anyar city of Surabaya
The coast of Surabaya City is dominated by mangrove forest ecosystems. The mangrove forest experiences a lot of shrinkage every year. The shrinkage that occurs in mangrove forests is not only caused by natural factors (abrasion and wind) but also due to logging activities by local communities. The degradation that occurs in mangrove forests is largely influenced by waves and tides. The existence of mangrove forests is thought to be very important for reducing the threat of degradation and can play a role in mitigating damage to existing ecosystems. The function of mangrove forests in mitigating the threat of degradation has encouraged a deeper study of mangrove forests which are thought to have a physical function as a barrier to ecosystem damage. The method used is a survey method with sampling using a transect line technique. The data collection technique in the field uses a transect line technique whose placement has been designed. The research results showed that three types were found, namely Avicennia marina, Rhizophora Apiculata, Ceriops candra. The tree level is calculated by the cover and density values ​​(trees/ha) to determine the standard criteria for determining mangrove forest damage. The cover level is very high with a final value of 99.61%. The results of the calculation of the density value (trees/ha) are above>150. amounting to 14,866.67, this shows that the density of trees in the Gunung Anyar mangrove forest is very high. Based on data from analysis of the Gunung Anyar mangrove forest, in general it has the ability to minimize degradation.
Degradation, mitigation, mangroves, density, closure
Copyright (c) 2023 Agricultural Science https://creativecommons.org/licenses/by-sa/4.0
Circular Economy Based City Park Management Model in Surabaya Indonesia
Maintaining a green, clean, beautiful, and lush city park through the year requires sustainable management, which includes maintenance like watering, pruning, trimming, and rejuvenation, as well as the creation of new parks. This study aims to identify the factors that influence the successful management of city parks in Surabaya and to understand the organic material cycle involved in managing these parks. This study used qualitative descriptive method. Data were collected through interviews with park management personnel, documentation from various city government policies, and field observations related to park management activities. Data were analysed using triangulation methods. Trees and city parks need regular care, such as pruning and trimming, to provide optimal benefits. Pruning waste, along with other organic waste, is composted at composting facilities or recycling centers widely available in Surabaya. The cyclical management of organic waste from city parks impacts the growth and development of Surabaya's parks while simultaneously solve the problem of organic waste produced by city communities.Although many studies discuss urban green space and waste management in Surabaya, specific research mapping the biomass cycle and circular economy framework in city park management is still limited. Therefore, this study aims to fill that research gap by exploring how circular economy principles are implemented in the Surabaya city park management system.
Circular economy, management, city park, Biomassa
Response of Sansevieria trifasciata cuttings On the Soaking Time of Vigna radiata Sprouts Extract
This study aimed to determine the effect of soaking time of mung bean (Vigna radiata) sprout extract on the growth of snake plant (Sansevieria trifasciata) leaf cuttings. The study was conducted at the Faculty of Agriculture's screen house, UGJ Cirebon used a Completely Randomized Design (CRD) with five treatments of immersion duration (10, 20, 30, 40, and 50 minutes) each repeated five times. The parameters observed included root length, time to shoot emergence, number of shoots, leaf thickness, chlorophyll content, and plant growth rate. The analysis results showed that the immersion duration significantly affected root length, initial shoot emergence, and number of shoots, especially at 40 and 60 days after planting. The best treatment was obtained at 30 minutes of immersion which consistently produced the most optimal root and shoot growth. Meanwhile, there was no significant effect on leaf thickness, chlorophyll content, and plant growth rate in all treatments. The phytohormone content in mung bean sprout extract such as auxin, cytokinin, and gibberellin is thought to play a role in stimulating root and shoot growth in the early phase of snake plant cutting propagation. This study proves that natural PGR from mung bean sprouts has the potential as an environmentally friendly alternative in supporting the vegetative propagation of ornamental plants.
Application of Nitrogen and Phosphorus Fertilizers to the Vegetative Growth of Red Chilies (Capsicum Year L.)
This study aims to determine the extent of the effect of Nitrogen and phosphorus on the vegetative growth of red chili plants. The research method was carried out at the Experimental Garden of the Faculty of Agriculture, Merdeka University, Surabaya. This study used a factorial Randomized Block Design (RAK) with two factors and three plant replications. The results showed a significant interaction between the combination of Nitrogen and Phosphorus treatments on Plant Height observations. The treatment of the correct (highest) Nitrogen fertilizer dose was shown by the N3 treatment and was significantly different from the N1 and N2 treatments on the parameters of plant height, number of leaves and number of branches. The treatment of the correct (highest) Phosphorus fertilizer dose was shown by the P2 treatment and was significantly different from the P1 treatment on the parameters of plant height, number of leaves and number of branches.
Chili, Fertilizer, Growth, Plants, Soil.
The Effect of Differences In Etefon Concentrations On The Level of Riteness And Quality of Melon (Cucumis Melo L.)
Melons (Cucumis melo L.) are a high-value horticultural commodity that faces challenges in terms of irregular ripening, especially in the Cirebon area and its surroundings. This study aims to evaluate the effect of different concentrations of the growth regulator ethephon on the acceleration of ripening and melon fruit quality. The study was conducted using a completely randomized design with six levels of ethephon concentration (0, 25 ml/L, 50 ml/L, 75 ml/L, 100 ml/L, and 125 ml/L) applied to post-harvest melons, and observations were made on days 2, 4, and 6 of storage. The parameters observed included weight loss, total soluble solids, vitamin C, chlorophyll, anthocyanin, and carotenoids. Meanwhile, the organoleptic test was conducted subjectively using human senses as the primary assessment tool. The results showed that the 75 mL/L concentration provided the best effect on ripening acceleration, as indicated by increased anthocyanin, chlorophyll degradation, and softer fruit texture, as well as high panelist preference. Although the 50 mL/L concentration showed the highest taste and total soluble solids, the optimal quality characteristics were found at 75 mL/L. It is recommended to use ethephon at a concentration of 75 mL/L to accelerate ripening while maintaining optimal melon fruit quality during storage.
The Effect of Nitrogen Fertilizer Dosage on The Growth and Yield of Balsam (Impatiens balsamina L.)
This study aims to determine the effect of various doses of nitrogen fertilizer on the growth and yield of impatiens (Impatiens balsamina L.). The study was conducted in Bandorasa Village, Cilimus District, Kuningan Regency, using a randomized block design (RBD) with seven treatments of nitrogen fertilizer doses, ranging from 1 g to 4 g of urea per polybag. The parameters observed included root length, plant height, number of leaves, leaf area, net assimilation rate, plant growth rate, chlorophyll content, number of flowers, fresh flower weight, and anthocyanin and carotenoid content. The results showed that nitrogen fertilizer application had a significant effect on several parameters, particularly plant height, number and area of leaves, plant growth rate, and number and weight of flowers. The 2.5 g/polybag dose treatment yielded the best results for most parameters, while excessively high doses tended to reduce growth and flowering efficiency. This study concluded that applying nitrogen fertilizer at the appropriate dose is crucial for optimizing the growth and yield of Impatiens balsamina L.
Farmers' Satisfaction With The Government's Performance In Inpari Variety Rice Seed Assistance 32 (Case Study In Dukupuntang District, Cirebon Regency)
This study analyzes the level of satisfaction of farmers who receive Inpari 32 variety rice seed assistance in Dukupuntang District, Cirebon Regency. The quantitative survey method with Importance Performance Analysis (IPA) was applied to 66 respondents. The data includes: demographic characteristics (age, education, land area, farming experience, membership), importance score and attribute performance (type, quality, quantity, time, process, mentoring), validity test, reliability, and science analysis. The results showed that the average importance score (Ȳ = 2.58) and performance (X̄ = 2.47) resulted in a 63.2% fit rate (medium category). The attributes of "Seed Type" are located in Quadrant I (improvement priority), "Quantity" and "Distribution Time" in Quadrant II (retained), while "Quality", "Process", and "Mentoring" are in Quadrant III (incremental improvement). These findings support strategic recommendations for the Agriculture Service and policymakers.
Farmer satisfaction, seed assistance, government performance, Inpari 32, Importance Performance Analysis.
Factors That Influence Purchasing Decisions On Brazilian Grapes AT CV. Gentar Brazilian Grapes Teja Village, Rajagaluh Sub-District, Majalengka District
The purpose of this study was to analyze the factors that influence purchasing decisions for Brazil grapes at CV. Gentar Brazil Wine, Majalengka. A quantitative approach was used with a survey method of 100 respondents. The independent variables are price, product quality, promotion, and location, while the dependent variable is the purchase decision. Data analysis was carried out using multiple linear regression. The results showed that the four variables had a significant effect on purchasing decisions, with an R² value of 71.5%. Only product quality and location have a significant effect partially, while price and promotion do not. Product quality is the dominant factor influencing purchasing decisions, and strategic location. These results indicate the importance of improving product quality and distribution access in Brazil grape marketing strategies. This research can be expected to be a reference for the development of exotic horticultural agribusiness at the local level
Improving Pakchoy (Brassica rapa L.) Growth and Yield in Stone Waste–Contaminated Soil Through Organic Amendments
Rock flour (slurry), a by-product of the stone industry, contributes to soil degradation by causing soil compaction and reducing soil fertility. The sustainable strategies such as the application of organic amendments are needed to restore soil properties. The aim of this research to evaluate the effects of different organic amendments—rice husk biochar, straw compost, and goat manure—on the growth and yield of pakchoy (Brassica rapa L.) cultivated in stone waste–contaminated soil. This research used randomized block design with four treatments and five replications was employed: (P1) control (stone waste–contaminated soil without amendment), (P2) Stone waste–contaminated soil and husk biochar (1:1), (P3): Stone waste–contaminated soil and straw compost (1:1), and (P4): Stone waste–contaminated soil and goat manure (1;1). The results showed that goat manure significantly enhanced pakchoy growth parameters, including plant height, number of leaves, root volume, and plant weight. Goat manure promote the optimal plant growth through serve optimal planting media.
Differences In Raw Material Types On The Production Costs of Skin Crackers In Tengah Tani District
Business actors often choose raw materials based on availability and price, without considering the total cost and overall product quality. This study aims to: (1) determine how the skin cracker production process for fresh, gareman and dried raw materials; (2) determine the contribution of raw material types to production process costs; and (3) determine the differences in raw material types on production costs. The hypothesis of this study is that there are suspected significant differences in the production costs of the skin cracker business based on the type of raw material used. The study was conducted in Tengah Tani District with purposive considerations with a research period from February to August 2025. The population of this study amounted to 16 business units, including 10 units using gareman raw materials, 3 units using fresh raw materials, and 3 units using dried raw materials. The research technique used a census technique so that the entire population was used as a sample and the data analysis technique used one-way ANOVA. The results of the study indicate that based on the selection of raw materials, more consideration is related to technical aspects. The largest contribution to raw material costs is garment raw materials. The total production costs based on differences in raw materials show differences with further analysis showing that production costsdrymuch lower than salted and fresh, but for salted and fresh, there was no statistically significant difference.
The Potential for Organic Matter and Nutrient Recovery from Broccoli Harvest Residues to Support Sustainable Agriculture
The return of harvest residues to the soil is an essential strategy in supporting sustainable agriculture, particularly for horticultural commodities such as broccoli (Brassica oleracea var. italica). This study aims to analyze the potential return of organic matter and macronutrients (N, P, K) as well as organic carbon (C-organic) from broccoli harvest residues to enhance soil fertility and reduce dependence on chemical fertilizers. The research was conducted in May 2025 in Desa Tani, Cipanjalu, Cilengkrang, Bandung Regency, with laboratory testing performed at the Department of Agronomy and Horticulture, IPB University, Bogor. A quantitative and descriptive approach was employed through observation, interviews, and laboratory analysis. The identification results showed that the total fresh weight of broccoli plants was 1,169 grams, of which only 400 grams were harvested, while the remaining 769 grams consisted of leaves, lower stems, and roots left in the field. The dry weight of the harvest residues was 77 grams per plant. With a planting density of 22,000 plants per hectare, the potential nutrient return was calculated using the formula: Nutrient Return = Dry Weight × Nutrient Content × Population per hectare. The nutrient content analysis showed that the broccoli residues contained 7.03% nitrogen (N), 0.90% phosphorus (P), 4.84% potassium (K), and 33.79% organic carbon (C-organic). Broccoli harvest residues have been proven to possess significant nutrient value and can be utilized as green manure to improve soil structure and reduce the use of synthetic fertilizers.
Research Trends On Pests of Manganji Chili Plants(Capsicum Annuum L): A Bibliometrix Review
Manganji chili is a distinctive horticultural commodity from Japan with high economic value; however, the greatest challenge in its production lies in pest infestations. This study aims to analyze research trends concerning pests affecting Manganji chili plants (Capsicum annuum L.). The analysis was conducted using a bibliometric approach based on Scopus data, supported by VOSviewer and Bibliometrix tools. The primary focus was directed at five key pests: Aphis gossypii, Scirtothrips dorsalis, Nezara viridula, Spodoptera litura, and Filicaulis bleekeri. Results indicate that although the number of publications remains limited and inconsistent annually, there has been an upward trend over the past two decades, particularly in Japan, the country of origin of Manganji chili. The identification of keywords, topic clusters, and prolific authors revealed a dominant research focus on biological control and banker plant systems. This study identifies research gaps that can be leveraged to develop more effective and sustainable pest control strategies. Therefore, the findings are expected to serve as a foundation for future research and policy-making in the management of Manganji chili pests.
Aphids, thrips, stink bugs, armyworms, shell-less snails
Valorization of Rice Panicle Straw and Watermelon Rind as an Innovative Medium for Eco-FriendlyProduction of SCOBY Biofilm
The valorization of agro-food waste represents a promising pathway toward sustainable bio-based materials. This study aimed to formulate a fermentation medium from rice panicle straw (merang) and watermelon rind for producing eco-friendly SCOBY (Symbiotic Culture of Bacteria and Yeast) biofilm. The waste materials were thermally extracted without filtration to retain active solids and subsequently fermented with lactic acid bacteria for 14 days. The fermentation broth was enriched with soybean flour as a nitrogen source and Ziziphus mauritiana leaf extract as an antioxidant additive. Phytochemical screening was conducted using colorimetric reactions analyzed through chromaticity coordinates for flavonoids and grayscale intensity for alkaloids. SCOBY growth was evaluated by measuring biofilm thickness, wet and dry weight, tensile strength, and elongation at break. The results revealed that the combination of these residues provided sufficient nutrients and bioactive compounds to support SCOBY development. The best treatment produced a biofilm with 4.51 mm thickness, 17.49 g wet weight, 3.86 g dry weight, 43.11 MPa tensile strength, and 6.66% elongation. Colorimetric evaluation showed a red chromaticity spectrum for flavonoid presence (dominant wavelength 620 – 625 nm, purity 81.04%), and a clear white grayscale range (220 – 240) for alkaloids. In conclusion, this formulation offers a simple, low-cost approach to converting agricultural waste into functional biofilms. Further investigations are recommended to evaluate the shelf life and potential of liquid SCOBY as a plant immunomodulator and biofilm as organic packaging.