The agronomy of pearl millet [Pennisetum americanum (L) Leeke] in the sandy soils of North Kordofan season 1992/93 [Sudan]

aclareo agronomia agronomie agronomy cosecha crop yield cultivo intercalado culture intercalaire harvesting intercropping lluvia pennisetum typhoides pluie rain rendement des cultures rendimiento de cultivos sandy soils sol sableux soudan sudan suelo arenoso thinning variedades varieties vigna unguiculata weeding