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一、胶树一生中在体内所固定的养分和割取胶乳所移去的养分自从在植胶者通报1940年第9期(旧编号)提出试用的成龄胶树施肥方案以后,马来亚橡胶研究所(以下称我所——译者)再没有发表过通用的成龄树施肥方案。这是因为在非
First, the gum tree life in the fixed nutrients and cut off the removal of the nutrients from the latex Since the rubber plantation Bulletin No. 1940 9 (old number) proposed trial of aging gum tree fertilization program, Malaya Rubber Research Institute (hereinafter referred to as I - translator) have never published a universal program of adult tree fertilization. This is because of the non