[AIMCRA [Research Association for Sugar Beet Crop Improvement, Spain]: Report on works carried out during 1995/96 campaign, spring sowing 1995, Northern and Central areas]

beta vulgaris chemical control control de enfermedades disease control enfermedades de las plantas ensayo espagne herbicidas herbicide herbicides irrigation lutte chimique maladie des plantes pests of plants plagas de plantas plant diseases ravageur des plantes riego spain testage testing variedades varieties