TY  - GEN
AU  - Sen,H.S.
TI  - Studies of the effects of tillage operations on soils structure
KW  - Soil texture
KW  - Tillage
KW  - Rain
KW  - Soil analysis
KW  - Hydraulic conductivity
KW  - Yield
KW  - Maize
KW  - Irrigation
ER  -