Agronomic performance of creeping peanut (Arachis hypogaea L.), grown in different row spacing and plant densities under conditions of humid subtropical climate

摘要

In recent years, peanut (Arachis hypogaea L.) cultivation has increased in the humid subtropical areas of Brazil. However, there islittle technical information for its cultivation under these conditions. The objective of this study was to evaluate the agronomicperformance of cultivar RUNNER IAC 886, when grown in different row spacing and plant populations. The experiment was arandomized block design in a 2 x 4 factorial with two plant densities (seven and ten plants per meter) and four row spacings (0.40,0.60, 0.80, 1.00 m), with four replications. The grain yield with ten plants per meter was approximately 32.1, 16.7, 13.7 and 11.5%higher than seven plants per meter for the row spacings of 0.40, 0.60, 0.80 and 1.00 m, respectively. The highest peanut grain yieldwas observed in the 0.6 m row spacing.