TY  - BOOK
AU  - Sivamurugan, A P 
TI  - Soil fertility management 
SN  - 9789327217155
U1  - 631.422 
PY  - 2012///
CY  - Ludhiana 
PB  - Kalyani publishers 
KW  - Organic sources of nutrients
KW  - Inorganic sources of nutrients
KW  - Soil and water conservation
KW  - Soil fertiltiy management
ER  -