AGRONOMIC EVALUATION AND ECONOMIC EFFICIENCY OF VEGETABLE SOYBEAN AND ORGANIC FERTILIZATION
DOI:
https://doi.org/10.32404/rean.v13i1.9390Keywords:
Glycine max L. Merrill, Green soybean, Poultry litter, Economic analysisAbstract
Despite its growing popularity in Western diets, vegetable soybean remains relatively underexplored in terms of cultivar performance and management practices. This study aimed to evaluate the agronomic performance and economic efficiency of vegetable soybean cultivars in response to varying doses of poultry litter. The experiment was conducted in Aquidauana, MS, Brazil, utilizing a 2 x 4 factorial design that included two vegetable soybean cultivars (BRS 232 and BRS 267) and four poultry litter doses (6, 12, 18, and 24 t ha-1). The experimental setup followed a randomized block design with four replications. The following agronomic parameters were evaluated: plant height, first pod insertion height, 100-immature grain weight, green pod yield, total yield of immature grains, and number of pods per plant, as well as the following economic indices: gross income, net income, return rate, and profitability index. The cultivar BRS 232 demonstrated superior agronomic and economic performance, with agronomic optimum at 16.36 t ha-¹ and economic optimum at 6 t ha-¹. However, for the BRS 267 cultivar, it was not possible to establish predictive equations for most economic and agronomic indices, except for the first pod insertion height and the 100-grain weight. Consequently, poultry litter is a cost‑effective and profitable option for producers and adequately meets the nutritional requirements of vegetable soybeans.
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