TY  - BOOK
AU  - Karthikakuttyamma M.
TI  - Effect of continuous cultivation of rubber (Hevea brasiliensis) on soil properties
PY  - 1997///
PB  - Ph.D. Thesis, University of Kerala, Trivandrum, India, 176 p.
KW  - Rubber cultivation
KW  - Soil property
ER  -