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All Journal SAINS TANAH - Journal of Soil Science and Agroclimatology Agrosains: Jurnal Penelitian Agronomi
Sudadi Sudadi
Department of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta
Agriculture, Biological Sciences & Forestry Education

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Soil Fertility Status, Nutrient Uptake, And Soybean Yield Following OrganicPLUS Fertilizer Application On Alfisol Slamet Minardi; Sudadi Sudadi; Ongko Cahyono; Vita Ratri Cahyani; Siti Maro'ah; Isna Luthfa Haniati; Lidya Zaela Wijaya
Agrosains : Jurnal Penelitian Agronomi Vol 25, No 2 (2023): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v25i2.82987

Abstract

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.
Optimizing Entisols properties and enhancing melon (Cucumis melo L.) yields using biofilm biofertilizer, organic matter, and NPK fertilization Sudadi Sudadi; Ongko Cahyono; Purwanto Purwanto; Retno Rosariastuti; Hadiwiyono Hadiwiyono; Azizah Anggun Febriana; Oca Higiawati; Adhia Azhar Fauzan
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol. 23 No. 1 (2026): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v23i1.91478

Abstract

Entisols have significant agricultural potential but also limitation by a high sand fraction and unstable soil aggregates, leading to low nutrient levels and poor water-holding capacity. This study aims to determine the optimal combination of biofilm biofertilizer, organic matter, and NPK fertilizer to improve it soil properties and enhance melon yields (Cucumis melo L.). A completely randomized block design was employed, consisting of three treatment factors: biofilm biofertilizer (BiO2) formulation (without BiO2, formula 1, and formula 2), organic matter dosages (0, 1.25, and 2.5 kg plant-1), and NPK dosages (0%, 50%, and 100% of the recommended dosage). The variables observed included soil properties (bulk density, aggregate stability, soil organic carbon (SOC), and available phosphorus), melon growth and yield. Data was analyzed using ANOVA at a 95% confidence level, followed by Duncan’s Multiple Range Test (DMRT) if any significant effects. The results showed that the interaction among BiO2, organic matter, and NPK significantly affected soil properties, enabling a reduction in NPK applications by up to 50% when combined with BiO2 and organic matter. The application of 2.5 kg plant-1 of organic matteroutperformed 1.25 kg plant-1 in improving bulk density, aggregate stability, available-P, P-uptake, plant dry weight, and melon yields; however, significant differences between these doses were observed only for available P and P uptake. This study can serve as a reference for determining fertilizer dosages to increase melon yields while improving the soil properties of Entisols and expanding their agricultural use.
Co-Authors Adhia Azhar Fauzan Azizah Anggun Febriana Hadiwiyono Hadiwiyono Isna Luthfa Haniati Lidya Zaela Wijaya Oca Higiawati ongko cahyono Purwanto Purwanto Retno Rosariastuti Siti Maro’ah Slamet Minardi Vita Ratri Cahyani