TY  - BOOK
AU  - Nijhawan S D
AU  - Kanwar J S
TI  - Physico-chemical properties of earthworm casting and their effect on the productivity of soil
U1  - 631.4 
PY  - 1952///
KW  - Land and soil
N1  - Photo print from Indian Jr. of Agr. Sc., v.22, pt.4, Dec 1952
ER  -