A Field guide for on-farm research
Mutsaers , H.J.W
A Field guide for on-farm research with special reference to improvement of cropping systems and techniques in west and central Africa - Nigeria Farming Systems Program - [vi] , 197 p.
ON - FARM
CROPPING SYSTEMS
338.16 / FIE
A Field guide for on-farm research with special reference to improvement of cropping systems and techniques in west and central Africa - Nigeria Farming Systems Program - [vi] , 197 p.
ON - FARM
CROPPING SYSTEMS
338.16 / FIE