[Survey on field experiments 1998, D: Leguminous crops]

control de enfermedades control de plagas danemark denmark dinamarca disease control enfermedades de las plantas ensayos de variedades escarda field experimentation lutte antiravageur maladie des plantes malezas mauvaise herbe pest control pests of plants pisum sativum plagas de plantas plant diseases plant protection protection des plantes ravageur des plantes variedades varieties variety trials weed control weeds