[Sowing terms and duration of seedlings cultivation of cowpea varieties for the conveyer production]

belarus caupi choix de la date conduite de la culture control methods cowpeas crop management date de plantation date de semis ensemencement fecha de siembra grain legumes integrated plant production leguminosas de grano manejo del cultivo periodo vegetativo plant production planting date plantule production production de plants de semis rendement rendimiento repiquage seedling production seedlings siembra sowing sowing date timing transplanting trasplante variedades varieties vegetation vegetative period vigna unguiculata unguiculata yields