TY  - BK
AU  - Griffith,D.R.
AU  - Childs,D.
AU  - Mannering,J.V.
AU  - Mengel,D.B.
AU  - Parsons,S.D.
TI  - Introduction to ridge-tillage for corn and soybeans
T2  - Publication I.D. - Cooperative Extension Service, Purdue University (USA).
U1  - 91-105642 
PY  - 1989///
KW  - Crop husbandry
KW  - Cultivation
KW  - AGROVOC
KW  - Equipment
KW  - Glycine genus
KW  - Gramineae
KW  - Leguminosae
KW  - Papilionoideae
KW  - Pest control
KW  - Soil cultivation
KW  - Soil types
KW  - Tillage equipment
KW  - Zea
ER  -