TY  - BOOK
AU  - V.S. Ashoka
AU  -  R.V. Koti  Department of Crop Physiology
TI  - Genotypic variation in soybean for native phosphorus acquisitin and use efficiency in vertisols
U1  - 630 
PY  - 2002///
CY  - Dharwad
PB  - University of Agricultual Sciences Dharwad
ER  -