TY  - JA
AU  - Walker,W.M.
AU  - Carmer,S.G.
AU  - Swanson,E.R.
TI  - What yield plateau? [Corn, soybeans]
SN  - 0162-5098
U1  - 82-742239 
PY  - 1980///
KW  - Maize
KW  - AGROVOC
KW  - Plant production
KW  - Soybean glycine max
KW  - Zea mays
N1  - ill
T2  - Crops and Soils Magazine
ER  -