Evaluation of different population arrangments to be used in soybean culture in order to improve your productive system

Given the relevance of soybean culture in Brazilian agriculture, new sowing systems have been researched in order to improve its production system. Among these, the double row sowing technique is standing out as an alternative in which the spatial arrangement of plants can be reflected in significant increases in grain productivity. However, in relation to the effect of row spacing, there are conflicting results in the literature. Therefore, the main objective of the research was to evaluate the different population arrangements, in order to recommend the appropriate spacing for the productive system of this culture. The following population arrangements were evaluated in relation to the biometric parameters of soy: T1 = 50 cm between rows; T2 = 35 cm between the lines; T3 = 25 cm between lines T4 = 25 cm and 50 cm between parallel lines; T5 = 35 cm and 70 cm between parallel lines. Through the statistical analyzes performed, the response variables assuming a fixed effect, were not responsive to the adoption of the double row planting system. In order to facilitate the management and sowing of the crop, conventional planting adopting single lines with both 35cm between rows and 25cm stands out above the others.