TY  - BOOK
AU  - PARKASH SINGH
TI  - Sorption behaviour of sulphur and its distribution in soil under maize-wheat cropping system
U1  - T 631.41 P15S 
PY  - 2006///
CY  - Ludhiana
PB  - PAU
KW  - SOIL PHYSICAL CHEMISTRY
KW  - CROPPING SYSTEMS
KW  - SOIL ABSORPTION AND ADSORPTION
ER  -