TY  - BOOK
AU  - Sukhvir kaur
TI  - Long- Term effects of inorganic and intergrated fertilization on soil phosphorus dynamics and crop uptake
U1  - P 631.85 S 92 L 
PY  - 2013///
CY  - Ludhiana
PB  - PAU
KW  - SOIL PHOSPHRORUS CONTENT
KW  - FERTILIZERS AND MANURES
ER  -