Eficácia do glufosinato de amônio associado com outros herbicidas na cultura do algodão Liberty Link®

Ronei Ben; Miriam Hiroko Inoue; Natan Ramos Cavalcante; Kassio Ferreira Mendes; Rivanildo Dallacort; Elielton Germano dos Santos

doi:10.7824/rbh.v11i3.176

Authors

Ronei Ben UNEMAT
Miriam Hiroko Inoue Universidade do Estado de Mato Grosso - UNEMAT
Natan Ramos Cavalcante UNEMAT
Kassio Ferreira Mendes UFV
Rivanildo Dallacort UNEMAT
Elielton Germano dos Santos

DOI:

https://doi.org/10.7824/rbh.v11i3.176

Keywords:

sequential application, Gossypium hirsutum, weed, transgenic

Abstract

The objective of this study was to evaluate the efficiency of ammonium-glufosinate in management programs for weeds in cotton crop FiberMax 966 Liberty Link^®genotype. The experiment was installed in experimental area of Paiaguás Farm, located in municipality of Diamantino, Mato Grosso State. The experiment was conducted in a randomized block design with eight treatments and four replications. For weeds efficient management in FiberMax 966 LL genotype, the application of herbicide treatment in pre-emergence may reduce up to two post-emergence applications with no significant losses in production, but the pre-emergence treatment needs to be effective. If the application of a herbicide treatment in pre-emergence is not possible, the use of three sequential applications of ammonium-glufosinate (0.5, 0.4, 0.6 kg ha^-1) at 10, 25 and 40 days after crop emergence (DAE) result in similar information. In the conditions that the experiment was conducted, all herbicide treatments were selective to the crop, without significant differences in bolls number and yield.