| Abstrakt: |
Soybean production in the Cerrado area is limited by the acidity and excess of aluminum in the soil. Thus, the use of agricultural lime and gypsum is necessary to decrease these factors and favor soybean growth. This study aimed to evaluate the effect of the application of lime and gypsum doses on soybean yield and nutrition, in a no-tillage system (NTS). The experiment consisted of a completely randomized blocks design, with four replications, and tested lime doses (0, 2, 4, 8, and 10 t ha−1) combined with the gypsum doses (0, 1, 2, and 4 t ha−1), applied to a Xanthic Haplic Ferrasol, in a Cerrado area intended to the implantation of a soybean crop under NTS. The traits leaf nutrition, hundred-grain weight, and the grain yield were evaluated in the 2015/2016 and 2016/2017 seasons. The application of lime combined with gypsum significantly changed the calcium content in the leaf, hundred-grain weight, and yield in the 2015/2016 season, and hundred-grain weight in the 2016/2017 season. Lime doses increased soybean nutrition for Ca, Mg, and yield in two seasons; however, are decreased N and K. N, P and Mg (season 2016/2017) are increased by Gypsum doses and decreased K and Mg (season 2015/2016). [ABSTRACT FROM AUTHOR] |
