微量元素是土壤——植物系统中的必需营养元素。虽然硼锌钼铜锰等元素在作物体中的含量甚低。但它们在作物生长和发育过程中所起的作用却很重要。它们是酶、维生素、激素的组成成分并参与植物体内物质代谢过程。例如植物缺锌不但影响植物有机体中的物质代谢过程,还会使植物茎杆矮化。小叶病。水稻缩苗病就是土壤缺锌的结果。严重时产量大减,甚至颗粒不收。当作物和果树缺硼时,就会影响作物的花粉萌芽和生殖器官的形成,造成生长点 Trace elements are essential nutrients in the soil-plant system. Although boron, zinc, molybdenum and copper and other elements in the body of the content is very low. But their role in crop growth and development is important. They are enzymes, vitamins, hormones and the composition of the body involved in the material metabolism process. For example, zinc deficiency in plants not only affects the metabolism of substances in plant organisms, but also dwarf plants. Leaflet disease. Rice seedling disease is the result of soil zinc deficiency. Seriously reduced production, and even particles do not accept. When the crops and fruit trees lack of boron, it will affect the pollen germination of crops and reproductive organs, resulting in growth point