TY  - BK
AU  - Edmeades,G.O.
AU  - Dankyi,A.A.
AU  - Marfo,K.O.
AU  - Tripp,R.B.
AU  - Tripp,R.B.
TI  - On-farm maize research in the transition zone of Ghana
U1  - 338.162 
PY  - 1991///
CY  - Chichester (United Kingdom)
PB  - John Wiley and Sons
KW  - Agricultural development
KW  - AGROVOC
KW  - Fertilizers
KW  - Ghana
KW  - Varieties
KW  - Weed control
KW  - Zea mays
KW  - Yields
N1  - Tables, references p. 84
ER  -