Cropping systems research : the scope and strategy for research in crop combinations

Okigbo, B.N.2007-11-131976-04-012007-11-131976IDRC-076ehttp://hdl.handle.net/10625/21281Meeting: Symposium on Intercropping for Semi-Arid Areas, 10-12 May 1976, Morogoro, TZIn IDL-1965p. 16Application/pdfenCropping systems research : the scope and strategy for research in crop combinationsBook Chapter