植物的生长不仅与碳、氢、氧、氮、硫、磷、钾、镁等大量元素有密切关系,同时也与锌、硼、钼、铜、铁等微量元素息息相关。必需微量元素在植物体内含量虽少,但对维持植物的正常生理代谢却有非常重要的作用,缺少它们,植物不能完成其生活史。近三十年来,由于生物化学、生物地球化学、生物无机化学、分子 Plant growth is not only closely related to a large number of carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, potassium, magnesium and other large elements, but also with zinc, boron, molybdenum, copper, iron and other trace elements closely related. Essential trace elements in the plant content is small, but to maintain the normal physiological metabolism of plants have a very important role, the lack of them, plants can not complete their life history. For nearly three decades, due to biochemistry, biogeochemistry, bio-inorganic chemistry, molecules