TY  - BOOK
AU  - Dwiwedi B S
AU  - Arvind K Shukla
AU  - Singh V K
TI  - Sulphur fertilisation for suataining productivity of rice -wheat system in western Uttar Pradesh
U1  - 633.18 
PY  - 2001///
CY  - New Delhi
PB  - ICAR
KW  - nutrient carriers
KW  - Soil survey
ER  -