Avaliação da cultura da batata instalada por sistemas de plantio direto e cultivo mínimo.

Abstract

The objectives of this research were to evaluate the planter were to modify a commercial potato planter to make it non-tillage and minimum tillage; to evaluate the planter and crop performance for conventional tillage, minimum tillage and non-tillage (for some modifications made on the machine); and to verify the need of pile, which is a typical operation done in potato crops. An experiment defined in casual blocks was carried out with subdividided plots and four repetitions. The tillage (non-tillage, conventional tillage and minimum tillage) was put in the plots, while the pile practice (without and with pile) was put in the split-plots. It was evaluated the machinery performance, the soil characteristics and the qualified production of tubers. The results showed that: (a) the production of commercial tubers was not affected by the treatments and it reached an average of 28266 kg ha-1; (b) the minimum tillage (MT) without the pile operation, provided greater number and mass of non-commercial tubers and (c) pile operation, which is considered essential by some authors, showed dispensable for the conditions in which the experiment was carried out.