Effect of cultivation systems on yield and other agronomic characteristics of white and black oats in rotation with wheat

Abstract

From 1985 to 1988 seven cropping systems were evaluated at the National Wheat Research Center (Centro Nacional de Pesquisa de Trigo - CNPT), in Passo Fundo, RS, Brazil, with respect to yield and other agronomic characteristics of black (Avena strigosa) and white (Avena sativa) oats. The cropping systems comprised: 1) monoculture of black oats; 2) one winter without wheat, cropped with black oats; 3) two winters without wheat, cropped with black oats; 4) three winters without wheat, cropped with black oats; 5) monoculture of white oats; 6) two winters without wheat, cropped with white oats; and 7) three winters without wheat, cropped with white oats. The experiment was established under conventional drilling. The white and black oats showed no significant differences either for yield or agronomic characteristics for the seven cropping systems tested. Oats yields were not affected when grown in rotation to wheat.