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稀土元素包括镧、铈、镨、钕等十多种元素.稀土农用是一个新的在国际上还没有解决的课题.我国稀土资源丰富,1972年开始进行农用试验,并组织相应的协作网.试验表明,稀土有明显的肥效,能使多种作物增产增收,促进作物对氮磷钾和其他微量元素的吸收,增加植物体的叶绿素,提高光合强度等功能,从而提高产量和品质.且使用方便,经济效益高.我所于1982年开始进行稀土在荔技、龙眼上应用技术的研究,现将试验结果总结如下.
Rare earth elements include more than ten elements such as lanthanum, cerium, praseodymium and neodymium etc. Rare earth agriculture is a new problem that has not yet been solved in the world.Our country is rich in rare earth resources and started agricultural experiment in 1972 and organized the corresponding cooperative network. The experiment shows that rare earth has significant fertilizer effect, which can increase yield and income of many kinds of crops, promote the absorption of nitrogen, phosphorus, potassium and other trace elements in crops, increase the chlorophyll of plants and increase the photosynthetic intensity, so as to increase yield and quality. Convenient, high economic efficiency.We started in 1982, the technology of rare earth in the Lai technology, longan application of technology, the test results are summarized below.