Correlations between morpho-agronomic characters of soybean supplemented via leaf with micronutrients

Abstract

The use of foliar fertilizers has become the main innovation in the field of plant mineral nutrition. And the use of these micronutrients associated with multivariate tools can contribute to the technical development of agribusiness, especially in soybean. Therefore, the aim of this study was to verify the possible correlations between morpho-agronomic characters of soybean supplemented via leaf with micronutrients. The study was conducted under field conditions in the county of Mineiros, GO, Brazil. The experimental design used was in randomized blocks in a 3x5 factorial scheme corresponding to three soybean genotypes (Anta82, CD2737 and N7902) and five concentrations of leaf supplement, Triplus Anuais® with its guarantees of phosphorus 2%, boron 3.4%, molybdenum 1% and 0.35% nickel. The leaf supplement was applied in a single dose during pre-flowering (0, 300, 600, 900 and 1200 ml ha-1). The highest yield potential was observed in the NS 7209 IPRO genotype at doses of 300 and 600 ml of leaf supplementation via Triplus Anuais. In addition, field adjustments to increase the averages of pods with two grains, grains per plant and mainly pods per plant, can increase the yield of genotypes.