TY  - BOOK
AU  - Krishnakumar A K
AU  - Karthikakuttyamma M
AU  - Mathew M
TI  - Rock phosphate as a source of fertilizer for rubber - a review
PY  - 1986///
PB  - Proceedings of the National Seminar on rock phosphate in agriculture, Tamil Nadu Agricultural University, Coimbatore, India, 1986. pp. 229-232
ER  -