Desempenho agronômico da cultura da soja Cultivar Intacta NS 5959 IPRO® no município de Três Palmeiras/RS

Abstract

Soybean is the main crop of Brazil, which stands as one of the largest producers of this culture, which generates large dividend to country. The high yield potential of the crop can be compromised by the attack of insect, especially Lepidoptera Order. For the management of these pests there were the Intacta® soybean technology, obtained by the transgenic process in which plant synthesizes a protein that is toxic to the larvae of certain Lepidoptera group. In this sense, an experiment was carried out with the objective of evaluating the productivity, resistance to caterpillars, and the cost of production of soybean cultivar NS 5959 IPRO® with and without Intacta® technology. The experimental design was a split plot factorial (2x4) with four replications. In the plots were allocated the factor A, represented by soybean cultivars NS 5959 IPRO® with Intacta® technology and NA 5909 RR® without this technology; sub parts in the factor B has been allocated, with the use of insecticides: cypermethrin (50 g ha-1), teflubenzuron (15g ha-1), cypermethrin (50 g ha-1) + teflubenzuron (15 g ha-1) in association and a control without application. It was observed that with soy Intacta® technology had a better development compared to soybean without technology, with lower caterpillars attack. The grains of the Intacta® cultivate NS 5959 IPRO® showed greater weight than the NA 5909 RR®. The achieved productivity was higher in cultivar with Intacta® technology, as to obtain higher productivity of farming without Intacta® technology spraying insecticides is required. Despite the soybean production cost with technology Intacta® be higher the gain in productivity is greater, and is more economically viable for the producer to opt for this technology.