TY  - JA
AU  - Dirks,V.A.
AU  - Bolton,E.F.
TI  - Regression analyses of grain yield of corn, level of leaf N P K and soil conditions in a long-time rotation experiment on Brookston clay
SN  - No (Revis
U1  - 82-754239 
PY  - 1980///
KW  - Cultivation
KW  - AGROVOC
KW  - Maize
KW  - Plant production
KW  - Soil chemistry and physics
KW  - Zea mays
N1  - Summary (Fr);29 ref
T2  - Canadian Journal of Soil Science
ER  -