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All Journal Journal Of Agriculture Sciences (Agrosci)
Wijaya Wijaya
Swadaya Gunung Jati University, Cirebon
Agriculture, Biological Sciences & Forestry

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The Effect of Liquid Organic Fertilizer (Lof) Dosage on the Growth, Yield, and Potassium Content of Red Spinach (Amaranthus tricolor L.) Plants Aries Septian; Silviani Ismatiyah; Adam Solikin; Wijaya Wijaya
Jurnal Agrosci Vol 3 No 1 (2025): Vol 3 No 1 September 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/agrosci.v3i1.875

Abstract

Background. Red spinach growth and output can be increased through the use of organic and inorganic fertilizers. A liquid fertilizer created by fermenting organic materials, such as animal manure, serves as a practical option. Aims. The purpose of this research is to assess the effects of varying amounts of liquid organic fertilizer on the growth, yield, and potassium content of red spinach (Amaranthus tricolor L.). Research examining the use of liquid organic fertilizer on red spinach was conducted in cultivated fields located in Banjaran, within the Sumberjaya area of Majalengka. The experiment took place from April to June 2025. Methods. An experimental method was applied, utilizing a randomized block design (RBD) with six levels of fertilizer doses and four replicates each. Measurements included plant height, number of leaves, stem diameter, relative growth rate, fresh weight per plant and plot, as well as potassium content. The collected data were examined using a one-way analysis of variance (ANOVA). Subsequently, Duncan’s Multiple Range Test (DMRT) was applied to determine which treatments showed statistically significant differences. Conclusion. Findings show that different levels of liquid organic fertilizer have a significant impact on plant height, number of leaves, stem diameter, relative growth rate, fresh weight both per plant and per plot, as well as the potassium content within the plants. Implementation. Applying 150 mL of liquid organic fertilizer per plant yields the best results across all measured variables.
Response of Bambara Groundnut (Vigna subterranea (L.) Verdcourt) Growth and Yield to Potassium Fertilizer Dosage Muhamad Ilhan; Devi Nandira Khoeriyah; Wijaya Wijaya
Jurnal Agrosci Vol 3 No 2 (2025): Vol 3 No 2 November 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/agrosci.v3i2.890

Abstract

Bambara Groundnut (Vigna subterranea (L.) Verdcourt) is an indigenous legume with considerable potential to strengthen food security issues. This research focuses on examining the influence of potassium fertilizer on bambara groundnut. The experiment was carried out in Kaliaren, Kuningan, from April to August 2025, using a Randomized Block Design (RBD) consisting of six potassium fertilizer doses and four replications. Observed variables included the growth and yield parameters, and the data were analyzed through Analysis of Variance (ANOVA) and Duncan’s multiple range test (DMRT). Application of potassium fertilizer resulted in significant changes in growth and yield indicators, including plant height, number of leaves and branches, leaf area index, root volume, fresh and dry biomass, and the weight of 100 seed. Among the tested levels, the application of 75 kg/ha of potassium fertilizer produced the highest growth and yield performance. These findings highlight the essential role of potassium in enhancing vegetative development and productivity of bambara groundnut, and demonstrate that optimum nutrient management can improve the potential of this crop as a contributor to future food security strategies.
The Effect Of N Fertilizer And Vermicompost Fertilizer On The Growth And Yield Of Sweet Corn (Zea mays saccharata Sturt) Cultivar Exsotic Pertiwi F1 Muhammad Aji Abadillah; Khoirul Al Farisi; Mukhammad Fariz Ismail; Wijaya Wijaya
Jurnal Agrosci Vol 3 No 2 (2025): Vol 3 No 2 November 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/agrosci.v3i2.895

Abstract

The purpose of this study is to ascertain how sweet corn growth and yield are impacted by urea and vermicompost fertilizer dosages. From June to August 2024, the study was carried out at Mekar Jaya Village, Gantar District, Indramayu Regency, utilizing a randomized block design (RBD) consisting of 9 treatments of nitrogen fertilizer and vermicompost fertilizer with three replicates. The urea doses were 100, 200, and 300 kg/ha, and the vermicompost doses were 5, 10, and 15 tons/ha, resulting in 27 experimental plots. The variables observed included plant height, number of leaves, diameter of cobs, length of cobs, root volume, nitrogen uptake, weight of cobs per plant, and weight of cobs per plot. The data were analyzed using the F test and DMRT at the 5% level. The growth and yield of sweet corn (Zea mays saccharata Sturt) were greatly influenced by the dosage of nitrogen fertilizer (urea) and vermicompost applied. Significant differences were found in various variables, such as plant height, number of leaves, stem diameter, root volume, cob diameter, cob length, cob weight per plant, and cob weight per plot. For the glucose content variable, there were no significant differences. In treatment I, the combination of 300 kg/ha of urea and 15 tons/ha of manure yielded the best results for most growth and yield variables.
Co-Authors Adam Solikin Aries Septian Devi Nandira Khoeriyah Khoirul Al Farisi Muhamad Ilhan Muhammad Aji Abadillah Mukhammad Fariz Ismail Silviani Ismatiyah