INFLUÊNCIA DO SISTEMA DOSADOR DE SEMENTES E VELOCIDADES OPERACIONAIS NA SEMEADURA DO MILHO

Abstract

Sowing management directly influences the result of productivity. plants unevenly distributed imply inefficient use of resources available, such as light, water and nutrients. In order for a superior result to be achieved, an adequate sowing process is necessary so that plantability is respected, using the correct amount of grains per unit area enabling uniformity in the distribution. Thus, the present work aimed to evaluate the distribution corn seed longitudinal using the Titanium® metering mechanism and conventional at different sowing speeds. The experiment was carried out in Vila Langaro-RS. The factors used for composition of treatments were: two mechanisms seed feeders (conventional feeder and Titanium® feeder) and three speeds of sowing (4, 6 and 8 km h -1 ). The evaluations performed were: acceptable spacing indices, faulty and double in addition to the coefficient of variation. The data were subjected to tests of normality and homogeneity and statistically validated through analysis of variance followed by Tukey's test. The results indicated that the use of the dosing system Titanium® at 6 and 8 km h -1 presents, 33 and 60% more acceptable spacing than the feeder conventional, respectively. Titanium® seed dosing mechanism features best performance at 8 km h-1 for the variables indices of acceptable spacing and failures