TY - BOOK AU - Rao D V K N AU - Punnoose K I AU - Thomas J TI - A Rapid method of determination of total N, P and K in a single digest of fresh leaf material of Hevea PY - 2006/// PB - Journal of the Indian Society of Soil Science KW - Fresh leaf KW - NPK KW - Peroxide digestion KW - Single extract KW - Total analysis ER -