Title:	Weed control in "LL" maize tolerant to glufosinate-ammonium.
Authors:	GALON, L. SILVA, M. R. da SILVA, A. F. da MENEGAT, A. D. PAWELKIEWICZ, R. BRUNETTO, L. ROSSETTO, E. R. de O.
Affiliation:	Leandro Galon, Universidade Federal da Fronteira Sul; Maicon Rodrigues da Silva, Universidade Federal da Fronteira Sul; ALEXANDRE FERREIRA DA SILVA, CNPMS; Andre Dalponte Menegat, Universidade Federal da Fronteira Sul; Renan Pawelkiewicz, Universidade Federal da Fronteira Sul; Leonardo Brunetto, Universidade Federal da Fronteira Sul; Emanuel Rodrigo de Oliveira Rossetto, Universidade Federal da Fronteira Sul.
Date Issued:	2020
Citation:	Revista Brasiliera de Milho e Sorgo, v. 19, e1194, 2020.
Description:	The glufosinate-ammonium is an herbicide with contact action and, when used in tolerant LL maize, requires associations with other products to improve the weed control spectrum and increase the residual period in the area. The aim of this work was to evaluate the efficacy and selectivity of glufosinate-ammonium, applied alone and in combination with other herbicides, for weed control in maize crops. The treatments consisted of two strategies. In the first one, the following herbicides were applied in pre-emergence conditions: atrazine, [atrazine + simazine], [atrazine + oil], [atrazine + S-metolachlor], and S-metolachlor; with the subsequent application of glufosinate-ammonium in post-emergence condition of maize. The second application method corresponded to the use of glufosinate-ammonium, alone and combined with nicosulfuron + mesotrione and the other products used in the first strategy, in addition to two control areas, being one weed-infested and the other weed-free. Phytotoxicity on maize and weed control were assessed. Ear insertion height, number of rows per ear, number of grains per row, thousand grain weight and maize yield were determined upon harvesting. The herbicides were effective and did not cause yield loss to the crop. The herbicides applied in combination with glufosinate-ammonium were efficient in regard to weed control and selective to maize.
Thesagro:	Helianthus Annuus Raphanus Sativus Zea Mays Erva Daninha
Keywords:	Urochloa plantaginea Planta daninha
DOI:	https://doi.org/10.18512/rbms2020v19e1194
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMS)