Efeitos de adubações mineral e organomineral na cultura da soja.

Abstract

The Brazilian producer has a great responsibility in producing soybeans (Glycine max L.), due to the products originated from the grain, having an increasing demand. To increase grain production, it is necessary to seek ways to produce a greater quantity through inputs and technology. Among the inputs are mineral and organomineral fertilizers. Organomineral fertilizer provides nutrients to the plant, and can partially or totally replace conventional mineral fertilizer, both of which provide nutrients that the plant needs. The National Supply Company carried out a survey of the 2020/21 crop, where Brazil should produce 268.9 million tons of grain. The experiment was carried out at Fazenda Moema in Marialva – PR, where the agronomic yields of the soybean crop were analyzed using treatments with mineral and organomineral fertilizers. The experimental design was randomized in blocks, with three treatments and seven replications, as follows: T1: Control, T2: mineral fertilizer 305 kg/ha-1, T3: organomineral fertilizer 610 kg/ha-1. The fertilizers used were: mineral formulated NPK (00-20-20) and organomineral in a mixture of granules in the formula 02-10-10. The characteristics evaluated are: number of pods per plant, number of grains per pod, grain weight (expressed in thousand grain weight) and yield. The data were submitted to the Scott-Knott test, where there was a significant difference only in plant height, while the other analyzed analyzes showed no difference.