TY  - BOOK
AU  - S. Selvaraj
AU  -  N.S. Hebsur  Department of Soil Science and agricultural Chemis
TI  - Studies on organophosphorus pesticide residues in paddy ecosystem and evaluation of zn and fe content in paddy grains and soils 
U1  - 630 
PY  - 2012///
CY  - Dharwad
PB  - University of Agricultural Sciences
ER  -