TY  - BOOK
AU  - GURIQBAL Singh
TI  - Tillage and nitrogen requirement of wheat sown after paddy
U1  - T 633.11 G96T 
PY  - 1988///
CY  - Ludhiana
PB  - PAU
KW  - WHEAT -- NUTRITION
KW  - CROP ROTATION
KW  - RICE
KW  - SOILS -- NITROGEN CONTENT
KW  - TILLAGE
ER  -