TY - BOOK AU - Abraham J AU - Karthikakuttyamma M AU - Mathew M AU - Suresh P R TI - A rapid non-digestion method for determination of K, Ca and Mg in leaf samples of Hevea brasiliensis PY - 1994/// PB - Indian Journal of Natural Rubber Research KW - Dry ash method KW - HCl extraction method KW - Hevea brasiliensis ER -