Plantabilidade e distribuição longitudinal de sementes de algodão com diferentes conjuntos disco-anel em dosador mecânico

Abstract

Sowing technology, or “Plantability” is a topic that is widely discussed today and represents the adoption of good practices in the implantation of agricultural crops. Among several factors that affect the quality of planting, the choice of the disc/ring set directly interferes in the longitudinal distribution of plants. This work aimed to evaluate the interference of the application of two disc / ring sets of different sizes in the longitudinal distribution of seeds in cotton crop. Test carried out in a sowing simulator system belonging to the Agroforestry Machinery and Tire Testing Center and the no tillage group (GPD), UNESP/Botucatu. The results ofour research showed that the correct selection of the disk-ring set affects the quality of the sowing, and the T2 treatment showed an increase of 5% in the failures and a reduction of 1% in acceptable spacing for the cotton culture in mechanical sowing, as well as the percentage of failures represented 5500 failures of deposition in the field for each hectare of cultivation. It is recommended to use the T1 disk-ring set (6mm) as it has shown the best results for the variety of seeds used in the experiment.