Available phosphorus and potassium status of rubber growing soils in relation to manuring of leguminous ground covers
Karthikakuttyamma M
Available phosphorus and potassium status of rubber growing soils in relation to manuring of leguminous ground covers - Rubber Board Bulletin 1976 - 33-35
Rock phosphate
Rubber soil
Available phosphorus and potassium status of rubber growing soils in relation to manuring of leguminous ground covers - Rubber Board Bulletin 1976 - 33-35
Rock phosphate
Rubber soil