植物在生长发育过程中,对微量营养元素的需求量虽然很少,而且所适宜的浓度范围也很窄,但是土壤中任何一种微量元素缺乏或含量过高,都会影响作物的生长和发育,从而导致产量和品质的严重下降,并且通过食物链进一步影响到人类和动物(家畜)的营养需求与健康。随着化学肥料的大量施用,土壤中大量元素和微量元素间不平衡的问题日益严重,合理施用微量元素肥料已成为农业生产中 Plant growth and development in the process, the demand for micronutrients is very small, and the appropriate concentration range is very narrow, but the lack of any trace elements in the soil or high content, will affect the crop growth and development, Resulting in a severe decline in yield and quality and further affecting the nutritional needs and health of humans and animals (livestock) through the food chain. With the large-scale application of chemical fertilizers, the problem of imbalance between a large number of elements and trace elements in the soil is becoming increasingly serious. The rational application of trace element fertilizers has become an issue in agricultural production