Nova proposta de aplicação de defensivo agrícola para o controle de plantas infestantes

Abstract

With the increase of the world population, there was a need for a development in agriculture. The use of pesticides has become of great importance for the production of larger and more profitable crops. However, some problems such as serious illness and intoxication can be caused by improper use of agrochemicals. In this context, this work aims to propose a new way of applying pesticides to the control of weeds in order to increase the protection of the applicator. A randomized complete block experiment with four replicates per treatment was carried out, where weed (Eleusine coracana (L.) Gaertn.), An infesting plant considered as an infesting grass in more than 50 crops in the world . The planting was treated with vermiculite sodium and vermiculite sodium with glyphosate. Some characterizations of the starting material and the final material for means of proving the obtaining of vermiculite sodium and their interaction with glyphosate were made. It was necessary to reformulate the material containing glyphosate, because it had a strong interaction with vermiculite, not having effect in the first two applications. After reformulation, the result was satisfactory. The leachate was collected so that the pH, conductivity, sodium, potassium and calcium parameters were analyzed. Statistical treatments demonstrate that there were significant differences in some parameters of the experiment, with emphasis on the sodium present in soils. The use of the proposed new applications was successful in the results, showing effectiveness in the control of weeds.