TY  - JA
AU  - Pierce,F.J.
AU  - Downy ,R.H.
AU  - Graham,W.A.P.
AU  - Larson,W.E.
TI  - Soil productivity in the corn belt: An assessment of erosion's long-term effects
PY  - 1984///
KW  - Erosion
KW  - Zea mays
KW  - AGROVOC
KW  - Soil fertility
T2  - Journal of Soil and Water Conservation
ER  -