金属元素铜是果树生长必需的某些酶体的一部份。在光合作用和叶绿素的形成及矿物质营养吸收等方面,铜元素起着一定的作用。铜一般更多地集中在果树的支(侧)根,在叶片和其它树体组织较少,聚集在根部纤维中大约5～10倍于叶片部位。所以,在根部的新陈代谢过程中,铜的作用是重要的。果树体内调节某些生化的转化和对蛋白质的利用与铜有着密切的关系。有证据表明铜参与果树的氧化 Copper, a metal element, is part of some of the body’s enzymes that are essential for the growth of fruit trees. Copper plays a role in photosynthesis and chlorophyll formation and mineral nutrient absorption. Copper is generally more concentrated in the branch (lateral) roots of fruit trees, with less tissue in the leaves and other trees, gathering about 5 to 10 times more than the leaves in the root fibers. Therefore, the role of copper is important in the root metabolism. Fruit tree regulation of certain biochemical transformation and the use of protein in the body and copper are closely related. There is evidence that copper is involved in the oxidation of fruit trees