Effects of fungicides and crop density on autumn-sown Vicia faba L.
1990
McEwen, J. | Yeoman, D.P. (Agricultural and Food Research Council, Harpenden (United Kingdom). Rothamsted Experimental Station)
Two field experiments were conducted at the Rothamsted Experimental Station in United Kingdom on clay-with-flints soil well-supplied with P,K, and lime in 1986-87 seasons to test the effects on autumn-sown Vicia faba of 12 and 36 seeds sown/m2 in combination with three fungicide treatments applied in response to chocolate spot (none, benomyl+chlorothalonil, and maneb+mancozeb) and the same three fungicide treatments applied later in response to rust. The larger seed rate increased yield and the incidence of rust had little effect on chocolate spot. The most consistent and largest average yield of 6.2 t/ha was given by the combination of 36 seeds/m2 with benomyl+chlorothalonil initially, followed by maneb+mancozeb.
Показать больше [+] Меньше [-]