Aplicação de fertilizante foliar na cultura do trigo associado ou não ao nitrogênio

Abstract

Foliar fertilization is a practice that is widespread in Brazil, but there are few studies that show the real effect on crops. The objective of this work is to evaluate the production, quality of grains as a function of the application of nutrients via foliar, in the wheat crop associated to the application or not of nitrogen in the cover. The experiment was conducted at the Frontier Southern Federal University, Erechim-RS campus, located in the Upper Uruguay region, Rio Grande do Sul, Brazil. The experimental design used was a randomized block (DBC), containing ten treatments with four replications, the treatments consisted of the application of nitrogen in the cover and the non application with the doses of leaf fertilizer of 0L / ha, 1L / ha, 2L / ha, 3L / ha and 4L / ha. The following evaluations were carried out: Nitrogen concentration in the wheat leaf, height evaluation of plants, number of ears per m², mass of one thousand grains, grain yield (kg / ha) and hectoliter weight (PH). In the evaluation of foliar nitrogen with the application of nitrogen under cover there was a statistical difference between the doses of the foliar fertilizer, and for the other evaluations there were no statistical differences between the doses of the foliar fertilizer, but statistical differences were verified between the application and the no Application of nitrogen in coverage.