TY - BOOK AU - Shorrocks V M TI - Leaf analysis as a guide to the nutrition of Hevea brasiliensis. II. Sampling technique with mature trees : Variations in nutrient composition of the leaves with position on the tree PY - 1962/// PB - Journal of the Rubber Research Institute of Malaya KW - Heva brasiliensis KW - Leaf analysis KW - Sampling ER -