@ARTICLE {AY:1982b, title = {Technology testing and monitoring in farming systems research: the preparation of on-farm experimentation}, author = {Ay, P. and Reid, P. and Yusef Isola, and Adewoye, E. and Atkins, S. L. and Mutsaers, H. J. W. }, journal = {Paper presented at National Workshop on Farming Systems research , 30 July-1 August 1982, NIFOR, Benin City}, year = {1982}, }