TY  - BOOK
AU  - J. Sasikala
AU  -  R. Siddaramappa  Department of Soil Science and Agricultural Chemis
TI  - Transformation & release of phosphorus from Udaipur rock phosphate in acid soils and its effect on growth of cowpea (Vigna Ungui
U1  - 630 
PY  - 1990///
CY  - Bangalore
PB  - University of Agricultural Scineces, Bangalore
ER  -