The Influence of Intercropping Kale(Brassica Oleracea Var .Acephala D.C) with cowpea (Vigna unguiculata (L) Walp.) or Mugnbean ( Vigna Radiata (L) Wilczek.) , on soil nitrogen changes weeds,crop yield
Rose Anyango Koboge
- Egerton Egerton university 2005