铜是作物生长发育必需的微量元素。铜在植物体内参与碳水化合物的运输和积累,调节水分和氧化还原过程,对生长点(根尖)的生长,生殖器官的形成,以及开花结实,有着特殊的功能。近年来,随着氮、磷、钾化肥施用量的增加,水稻单产的提高,植物从土壤中携走大量营养元素,造成 Copper is a necessary trace element for crop growth and development. Copper participates in carbohydrate transport and accumulation in plants, regulates water and redox processes, and has special functions in growth point (root tip) growth, formation of reproductive organs, and flowering and fruiting. In recent years, with the application of nitrogen, phosphorus and potassium fertilizers increased, rice yield increased, plants carry large amounts of nutrients from the soil, resulting in