TY  - BOOK
AU  - Singh, S.S.
TI  - Soil fertility and nutrient management
SN  - 9788127269982
AV  - S590.S5 2011 
PY  - 2011///
CY  - Ludhiana
PB  - Kalyani Publishers
KW  - Soil fertility
KW  - Soil nutrients
KW  - Management
ER  -