Growth and production of soybean (Glycine max (L.) Merill) with different fertilizer strategies in a tidal soil from South Sumatra, Indonesia

Dedik Budianta,Adipati Napoleon,E Ermatita,Akbar Paripurna

doi:10.3232/sjss.2019.v9.n1.04

Abstract

The efforts to improve soybean growth and production in tidal lands include applying lime, supplying some nutrients, and using improved varieties. The objective of this study was to find the effect of lime and NK fertilizer application for soybean (Glycine max (L.) Merill) growth in tidal land. The research was conducted at the greenhouse of the Agriculture Faculty of Sriwijaya University. The pot experiments used a complete randomized design arranged factorially with two factors. The first factor was six levels of lime (i.e., 0 ton ha-1, 0.81 tons ha-1, 1.63 tons ha-1, 2.45 tons ha-1, 3.26 tons ha-1, and 4.07 tons ha-1),and the second factor was two levels of fertilizer (i.e., site-specific fertilizer and fertilizer calculated based on FAO criteria) and fertilizer recommended by South Sumatera Agricultural Research. Each treatment combination was made of three replications; the total number of treatment pots was 36. The measured variables were plant height, number of pods, number of nonempty pods, number of seeds, weight of 100 seeds, and production. The results showed that liming significantly increased plant height, total number of pods, number of nonempty pods, number of seeds, weight of 100 seeds, and soybean production, while fertilizer did not significantly affect all variables. The interaction between fertilizer and lime significantly affected plant height and the weight of 100 seeds. Lime application of 3.26 tons ha-1 gave the highest yield on lime treatment only with production at 2.853 tons ha-1 compared to other treatments.

Highlights

IntroductionSoybean is a very important crop in Indonesia, as it is one of vegetable protein sources for the raw material for tempe (Indonesian name for fermented soybean), soy sauce, tofu, etc., which are foods that are required by humans for their daily needs
PALAVRAS-CHAVE Cal, solo de zonas de pântano, específico do local.Soybean is a very important crop in Indonesia, as it is one of vegetable protein sources for the raw material for tempe (Indonesian name for fermented soybean), soy sauce, tofu, etc., which are foods that are required by humans for their daily needs
According to Dierolf et al (2001), soybeans are less tolerant in high soil acidity with pH < 4.5, while soybeans can grow well in the pH range of 5.00-5.50 (Adimihardja et al 2006) and produce higher in the pH range of 5.87.0 (Firmanto 2011)

Summary

Introduction

Soybean is a very important crop in Indonesia, as it is one of vegetable protein sources for the raw material for tempe (Indonesian name for fermented soybean), soy sauce, tofu, etc., which are foods that are required by humans for their daily needs. Indonesia uses two million tons of soybeans per year, but the national soybean production is only 30% of the demand. The rest is imported from abroad (Marwoto et al 2008). The consumption of soybased products has increased from 14.21 kg capita-1 year-1 in 2009 up to 15.01 kg capita-1 year-1 (Sutyorini and Waryanto 2013), so that the Government of Indonesia strives to meet domestic soybean demand. One of them is to develop soybean production outside Java. One of the land types that can be used for the cultivation of soybeans is tidal land

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Conclusion