TY  - JA
AU  - Siemens,J.C.
AU  - Oschwald,W.R.
TI  - Corn-soybean tillage systems:  erosion control, effects on crop production, costs
U1  - 78-331872 
PY  - 1978///
KW  - Cultivation
KW  - AGROVOC
KW  - Erosion
KW  - Maize
KW  - Soybean glycine max
KW  - Zea mays
N1  - Ref
T2  - Transactions of the ASAE [American Society of Agricultural Engineers]
ER  -