TY - PRO AU - Byerlee,D. AU - Mutsaers,H.J.W.|Walker,P. AU - Triomphe,B. TI - The use of integrated agronomic economic surveys in the diagnostic stage of on-farm research PY - 1991/// CY - Ibadan (Nigeria) PB - IITA KW - Analysis KW - Data analysis KW - Plant production KW - Surveys KW - Yield factors KW - Farming systems KW - AGROVOC N1 - Tables, graphs, references p. 37-38 ER -