TY  - BOOK
AU  - Gurkirpal Singh
TI  - Effect of different crop rotations sown under varying levels of cultivation on the production potential and physico-chemical properties of the soil
U1  - T 631.452 G96E 
PY  - 1977///
CY  - Ludhiana
PB  - PAU
KW  - ROTATION OF CROPS
KW  - AGRONOMY
KW  - CROP PROD
KW  - CROP ROTATION
KW  - INTER CROP
KW  - SOIL SCIENCE
N2  - Productive potential of various crop rotations; viz. fallow-maize-wheat; summer moong-maize-wheat; cowpeas-maize-wheat; summer moong-maize-potato (autumn)-wheat; cowpeas-maize-potato (autumn)- wheat and cultivation requirements (0, 1 and 4) of maize-wheat
ER  -