现在都已知道,除了氮、磷和钾外,植物所吸收的为量极微的微量元素(硼、铜、锰等等)在植物生活上也有巨大的意义。它们不仅可提高产量,而且可改善其品质。近年来在微量元素肥料的应用方面,在拉脱维亚、乌克兰、阿塞拜疆以及列宁格勒州和莫斯科州都进行了许多工作。化学工业开始制造各种微量元素肥料,应用微量元素肥料的经济方法正在研究。已经确定,微量元素不仅在氧化还原过程中起有重大的作用,而且也影响到蛋白质和碳水化合物 It is now known that in addition to nitrogen, phosphorus and potassium, trace amounts of trace elements (boron, copper, manganese, etc.) that plants absorb are also of great importance in plant life. They not only increase yields but also improve their quality. In recent years there has been much work on the use of trace element fertilizers in Latvia, Ukraine, Azerbaijan, the State of Leningrad and Moscow. The chemical industry began to manufacture various trace element fertilizers, and economic methods using trace element fertilizers are under study. It has been determined that trace elements not only play a significant role in the redox process, but also affect proteins and carbohydrates