KnE Life Sciences

Published date: Aug 12 2025

Journal Title: KnE Life Sciences

Issue title: The 6th International Conference on Technology, Education, and Social Science (6th ICTESS): Science and Technology

Pages: 111 - 125

DOI: 10.18502/kls.v9i1.19354

Sumarmi Sumarmifelt.sumarmi@gmail.comDepartment of Plant Science, Faculty of Agriculture, Universitas Slamet Riyadi, Jl. Sumpah Pemuda No.18, Surakarta

Satria Bagus PanuntunDepartment of Agrotechnology, Faculty of Agriculture, Universitas Slamet Riyadi, Jl. Sumpah Pemuda No.18, Surakarta

Sartono Joko SantosaDepartment of Agrotechnology, Faculty of Agriculture, Universitas Slamet Riyadi, Jl. Sumpah Pemuda No.18, Surakarta

Avisema Sigit SaputroDepartment of Agrotechnology, Faculty of Agriculture, Universitas Slamet Riyadi, Jl. Sumpah Pemuda No.18, Surakarta

Soybeans (Glycine max (L.) Merrill) are typically cultivated at the beginning of the dry season, as they do not grow optimally during the rainy season. This study investigates the combined effects of mycorrhizal biofertilizer and NPK fertilizer on the growth of the Biosoy soybean variety during the rainy season. The experiment was conducted from 7 December 2022 to 7 March 2023, in Sidoharjo, Wonogiri District, Central Java, Indonesia using a Randomized Completely Block Design with two factors: mycorrhizal biofertilizer (0, 2.5 g, 5 g, and 7.5 g per plant) and NPK fertilizer (0, 1 g, 2 g, and 3 g per plant), with three replications. Results showed that mycorrhizal biofertilizer application significantly impacted the weight of 100 dried seeds and seed yield per plot. NPK treatment significantly impacted plant height, fresh pods weight, 100 dried seeds weight, and seed per plot yield per plot, which reached up to 154.23 g. The interaction between mycorrhiza and NPK also had a significant effect on fresh pod and dry seed weights. The optimal combination was 5 g mycorrhiza and 2 g NPK per plant, which resulted in improved growth parameters: plant height (33.17 cm), number of leaves (83.25 strands), wet plant weight (25.20 g), dry plant weight (9.18 g), number of pods (29.83 fruits), fresh pod weight (29.11 g), dry seed weight (10.43 g), and 100 dried seed weight (25.97 g). These findings suggest that Biosoy soybeans can be effectively cultivated during the rainy season with proper fertilization.

Keywords: soybean, biofertilizer mycorrhiza, NPK

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