TY  - PRO
AU  - Byerlee,D.
AU  - Diallo,A.O.
AU  - Heisey,P.W.
AU  - Mwangi,W.M.
AU  - Smale,M.
AU  - Tripp,R.B.
AU  - Waddington,S.R.
TI  - Maize research in Sub-Saharan Africa:  An overview of past impacts and future prospects
PY  - 1992///
KW  - Africa south of Sahara
KW  - Credit
KW  - Environmental policies
KW  - Fertilizer application
KW  - Food policies
KW  - Germplasm
KW  - AGROVOC
KW  - Innovation adoption
KW  - Prices
KW  - Technical progress
KW  - Varieties
KW  - Zea mays
KW  - Soil fertility
KW  - Farming systems
N1  - Tables, graphs, maps, references p. 22-29
ER  -