Mostrando ítems 1-10 de 59
Returns to wheat research in Nepal
Use of tine-tillage, with atrazine weed control, to permit earlier planting of maize by smallholder farmers in Zimbabwe
Because of shortages of oxen for mouldboard ploughing, delayed planting of maize is common in Mangwende, Zimbabwe and reduces grain yield by 32%. On-farm experiments over four years tested the possibility of using a ripper ...
El uso y conservacion de los recursos naturales en La Fraylesca, Chiapas: Un diagnostico
(CIMMYT; INIFAP, 1992)