UTILIZAÇÃO DE HERBICIDA PÓS-EMERGÊNTE NO CONTROLE DE PLANTAS DANINHAS NA CULTURA DO MILHO HÍBRIDO AG 1051

Abstract

Maize (Zea mays L.) is a species belonging to the family of grasses and can be grown in various regions of the world, mainly due to the great diversity of genotypes. This plant has high nutritional characteristics, can be part of both human and animal food. One of the main factors that directly influence agricultural productivity is the competition of weeds for water, light, nutrients and physical space with the main crop. The main method used to control these weeds is through chemical control because they have fast action and have better cost benefit, with a view to faster and more efficient control. Although many changes and innovations arise as the market needs, including the advent of transgenic crops resistant to certain pests, the use of herbicides is highlighted as most of these innovations not prevent the development of weeds in the field. Currently, the herbicide glyphosate N- (phosphonomethyl) glycine), non-selective, systemic, post-emergence, 60% of the world market of non-selective herbicides, accounting for a total of US $ 1.2 billion / year with product sales.