Diferentes espaçamentos e densidades de plantas na cultura do milho

Abstract

The present work aims to evaluate the influence of different row spacings and population densities on corn (Zea mays) yield. The experiment was carried out in Cândido Godoi-RS, where the soil is characterized as a Red Latosol. The experimental design was a randomized block design in a 3x3 factorial scheme with three replications. The treatments consisted of three spacings and three plant densities. Sowing took place on November 22, 2018. The cultivation system used was the conventional one with one scarification and two harrowing. For sowing, the hybrid LG 6033VTpró2 was used. To perform the height evaluation, it was performed observing the distance between the soil surface and the insertion of the last leaf, the stem diameter was measured through the measurement located in the first internode of the plant, to evaluate the insertion height of the first ear. , measured at a distance above ground level approaching the insertion of the upper ear. It was concluded that larger populations increase the productivity, insertion height of the first ear, but decrease the stem diameter per plant. Smaller spacing increases yield / ha, but larger spacing increases plant height, also increasing stem diameter.