TY - BOOK AU - Karthikakuttyamma M. AU - Augusthy A. AU - Krishnakumar V. AU - Mathew M. TI - Distribution of exchangeable and total manganese in rubber growing regions of India PY - 1989/// PB - Indian Journal of Natural Rubber Research KW - Correlation KW - Exchangeable manganese KW - Mechanical composition KW - Rubber growing soil KW - Soil analysis KW - Total manganese ER -