TY  - PRO
AU  - Waddington,S.R.
AU  - Heisey,P.W.
TI  - Meeting the nitrogen requirements of maize grown by resource-poor farmers in Southern Africa by integrating varieties, fertilizer use, crop management and policies
U1  - 633.153 
PY  - 1996///
CY  - Mexico, DF (Mexico)
PB  - CIMMYT
KW  - Crop management
KW  - AGROVOC
KW  - Fertilizers
KW  - Nutritional requirements
KW  - Plant physiology
KW  - Research policies
KW  - Southern Africa
KW  - Zea mays
N1  - Abstract only
ER  -