TY - BOOK AU - Shorrocks V M TI - Leaf analysis as a guide to the nutrition of Hevea brasiliensis 1 Sampling technique with mature trees : Principles and preliminary observations on the variations in laef nutrient composition with position on the tree PY - 1961/// PB - Journal of the Rubber Research Institute of Malaya KW - Hevea brasiliensis KW - Leaf analysis KW - Leaf nutrient composition KW - Sampling technique ER -