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稀土在果树生产中的应用楚燕杰（涿鹿县林业局）稀土，又叫“农乐益植素”，“常乐益植素”或稀土微肥，在一般的稀土矿物中，均为几种稀土元素共存，性质又相似，所以常用的是它们的混合物，即混合稀土。在农业上常用的稀土化合物主要是镧、铈、镨、钕等四种元素的混合物...
Application of rare earth in the production of fruit trees Chu Yanjie (Zhuolu County Forestry Bureau) Rare earth, also known as “Nong Lok Yi Su,” “Chang Lok Yi Su” or rare earth fertilizer, in general rare earth minerals, are Several rare earth elements coexist, similar in nature, so commonly used is their mixture, that is, mixed rare earth. Commonly used in agriculture, rare earth compounds are mainly lanthanum, cerium, praseodymium, neodymium and other four kinds of elements of the mixture ...