Épocas de semeadura e doses de nitrogênio em trigo de duplopropósito BRS Tarumã

Abstract

The objective of this work was to evaluate the influence of different nitrogen rates and sowing in two periods on the forage and grain yield of a BRS Tarumã double - genotype genotype subjected to two cutting regimes. The work was carried out in the experimental area of the Fronteira Sul Federal University, Cerro Largo campus. The experimental design was completely randomized with three treatments and four replications, in a 3 x 2 factorial arrangement (3 doses of N - 0, 150 and 300 kg.ha - 1 in two sowing seasons). The evaluated parameters were forage mass, forage yield and grain yield. The data were processed and submitted to analysis of variance and the means were compared by the Tukey test with 5% probability of error and regression. The sowing time had influence on forage production, promoting superior results in the second sowing season. Forage and grain production was influenced by the nitrogen rates, thus allowing the production of high doses of nitrogen to be increased.