TY  - BOOK
AU  - Karthikakuttyamma M.
AU  - Balan M.V.
AU  - George C.M.
TI  - Available phosphorus and potassium status of rubber growing soils in relation to manuring of leguminous ground covers
PY  - 1976///
PB  - Rubber Board Bulletin
KW  - Rubber growing soil
KW  - Soil phosphorus
KW  - Soil potassium
ER  -