Black oat yield and seed physiologic quality under superficial lime application in no tillage system - DOI: 10.4025/actasciagron.v28i2.1043

Abstract

The experiment carried out in Botucatu, São Paulo State, Brazil, in dry conditions, aiming to evaluate the yield and physiologic quality of black oat seeds, under superficial liming in no tillage system. A randomized complete block design was used, with four replications. The treatments were superficial application of different dolomitic lime rates (R0 = zero – without lime; R1 = 1.8 t ha^-1 – lime to increase the base saturation at 54%; R2 = 3.6 t ha^-1 – lime to increase the base saturation at 68%, and R3 = 5.4 t ha^-1 – lime to increase the base saturation at 80%), in October 2002. The black oat Common cultivar was sowed in April 2004, in second year, after the crop rotation of millet (spring), common bean (summer), black oat (autumn/winter). The results showed that the black oat physiologic quality seed was not affected by superficial liming. However, there was yield increase by this practice.