TY  - BK
AU  - Dwivedi,B.S.
AU  - Shukla,A.K.
AU  - Singh,V.K.
AU  - Yadav,R.L.
TI  - Sulphur fertilisation for sustaining productivity of rice-wheat system in wester Uttar Pradesh
T2  - PDCSR Technical Bulletin
PY  - 2001///
CY  - New Delhi (India)
PB  - ICAR, 
KW  - Analysis
KW  - Crop yield
KW  - AGROVOC
KW  - Field experimentation
KW  - Maize
KW  - Rice
KW  - Soil chemistry
KW  - Soil surveys
KW  - Statistical analysis
KW  - Wheat
KW  - Soil fertility
ER  -