Incidência de plantas daninhas e resistência do solo à penetração no cultivo da aveia preta em diferentes manejos do solo e dosagens de sementes.

Abstract

This work had for objective to evaluate the incidence of harmful plants and resistance of the soil the penetration in the culture of the black oat in four different handlings of the soil (conventional system, no tillage, subsoler and chiseling) as well as in different seedling quantity (80, 100 and 120 kg. ha-1) in the region of Lages-SC. In this work the experimental design was used in blocks, in the outline of portions subdivided sub, tends in the portions the handlings of the soil, in the split plots the seedling quantity and in the split split plots the depths in the soil (0-10, 10-20, 20-30, 30-40, 40-50 cm). The obtained data were analyzed by the test of Tukey at 5% of significance. The conventional plantation presented larger averages of incidence of harmful plants. The direct plantation presented smaller incidence of harmful plants. There was not difference in the incidence of harmful plants and resistance of the soil to the penetration he/she enters to the quantity of seeds. The layer of 0- 10 cm presented the smallest values of resistance of the soil the penetration.