TY  - BOOK
AU  - Roy, R.N.
AU  - Misra, R.V.
TI  - Assessment of soil nutrient balance : approaches and methodologies
T2  - (FAO fertilizer and plant nutrition bulletin; 14)
SN  - 9789251050385
PY  - 2003///
CY  - Rome
PB  - FAO
ER  -