TY  - JA
AU  - Schulte,E.E.
TI  - Fertility needs change under conservation tillage [Fertilization]
U1  - 79-433803 
PY  - 1979///
KW  - Cultivation
KW  - AGROVOC
KW  - Fertilizers
KW  - Soil fertility
N1  - ill
T2  - Crops and Soils Magazine
ER  -