Soil Fertility Status, Nutrient Uptake, And Soybean Yield Following OrganicPLUS Fertilizer Application On Alfisol

Slamet Minardi (Department of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta)
Sudadi Sudadi (Department of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta)
Ongko Cahyono (Department of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta)
Vita Ratri Cahyani (Department of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta)
Siti Maro'ah (Department of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta)
Isna Luthfa Haniati (Department of Agriculture, Fisheries and Food of Semarang Regency, Central Java)
Lidya Zaela Wijaya (Master Profgram of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta)

Agrosains: Jurnal Penelitian Agronomi
Vol 25, No 2 (2023): Agrosains: Jurnal Penelitian Agronomi

This study aims to assess the impact of Organic FertilizerPlus on soil fertility status, nutrient uptake, and soybean yield in Alfisol. The research employs a randomized complete group design (RCGD) with a single factor, consisting of P0 (Control), P1 (Cow dung, 5 tons ha-1 + Zeolite dose of 2.5 tons ha-1), P2 (Cow dung, 5 tons ha-1 + Zeolite dose of 5 tons ha-1), P3 (Cow dung, 5 tons ha-1 + Dolomite dose of 2.5 tons ha-1), P4 (Cow dung, 5 tons ha-1 + Dolomite dose of 5 tons ha-1), and P5 (Cow dung, 5 tons ha-1 + Zeolite dose of 5 tons ha-1 + Dolomite dose of 5 tons ha-1), repeated four times. The results indicate that the application of Organic FertilizerPlus enhances soil fertility status (pH, organic C, CEC, and available P), with the highest values observed in treatment P5, including pH (6.70), soil organic C (6.28 g.kg-1), cation exchange capacity (CEC) (6.85 cmol.g-1), and available P (2.63 mg.g-1). This leads to increased phosphorus uptake, consequently improving soybean yields. The highest soybean yield is achieved by applying Organic FertilizerPlus (P5) at 2.17 t.ha-1.