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镁在植物体内的含量虽比氮磷钾等矿物养分少,但是,它是组成叶绿素的主要成分,所以镁亦如氮磷钾等一样是植物必需的营养元素。对橡胶树来说,镁不仅是组成叶绿素的主要成分,而且镁与其他元素间的平衡状态会影响胶乳的稳定性和排胶状况。橡胶树叶片中含镁量一般在0.35～0.45％,胶乳中含镁为0.11～0.13％。早在五十年时,马来西亚就重视镁对胶树生长和产胶关系的研究,并指出对胶树必须旋用镁肥。目前马来西亚、印度尼西亚、印度和斯里兰卡等国均将镁肥按一定的比例与氮磷钾配合成复合肥料施用于橡胶树。马
Although magnesium is less abundant in plants than mineral nutrients such as nitrogen, phosphorus, and potassium, it is a major component of chlorophyll. Therefore, magnesium is also an essential nutrient for plants like nitrogen, phosphorus, and potassium. For the rubber tree, magnesium is not only the main component of chlorophyll, but also the balance between magnesium and other elements will affect the stability of the latex and discharge conditions. Rubber tree leaves magnesium content is generally 0.35 to 0.45%, magnesium latex is 0.11 to 0.13%. As early as fifty years ago, Malaysia focused on the study of the relationship between magnesium growth and gum production in Malaysia, and pointed out that it is necessary to spin the magnesium fertilizer on the gum tree. At present, Malaysia, Indonesia, India and Sri Lanka and other countries will be a certain proportion of magnesium fertilizer with NPK compound fertilizer applied to the rubber tree. horse