The Combination of Urea and Catfish Organic Fertilizer on the Vegetative Growth of Soybean Plants in Regosol Soil
DOI:
https://doi.org/10.53797/agrotech.v5i1.4.2026Keywords:
Nitrogen, Organic Fertilizer, Soybean, Regosol SoilAbstract
Soybean (Glycine max L.) is the third most important food crop after rice and maize in Indonesia. Improving soybean productivity is essential, particularly through efficient fertilization strategie. This study aimed to evaluate the effect of different combinations of urea fertilizer and catfish organic fertilizer on the vegetative growth of soybean cultivated in regosol soil. The experiment was conducted using a Completely Randomized Design (CRD) with a single factor consisting of five fertilizer treatments: P1 (0.6 g urea), P2 (0.45 g urea + 1.1 g catfish organic fertilizer), P3 (0.3 g urea + 2.2 g catfish organic fertilizer), P4 (0.15 g urea + 3.3 g catfish organic fertilizer), and P5 (4.4 g catfish organic fertilizer). Each treatment was replicated four times. Observed parameters included plant height, number of leaves, leaf area, fresh and dry shoot weight, fresh and dry root weight, root length, and soil pH. The results indicated that the application of 4.4 g catfish organic fertilizer produced vegetative growth comparable to that of 0.6 g urea. This finding demonstrates that catfish organic fertilizer can effectively substitute urea fertilizer during the vegetative growth phase of soybean cultivated in regosol soil. The use of catfish organic fertilizer offers a sustainable alternative for reducing dependence on synthetic nitrogen fertilizers while maintaining soybean growth performance.
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