一、什么是稀土和稀土微肥? 稀土(RE或R)是金属元素,其理化性质具有金属特点,是化学元素周期表上的镧系元素(镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥),以及与此化学性质相近似的钪、钇元素的总称。稀土微肥是稀土矿物经提炼成混合稀土的中间产物,在农业上主要作为肥料应用,由于用量少,故称稀土微肥。它加工容易,流程简单,成本较低,有一定增产作用。所以经济效益较高。目前市场上销售的“增产灵”、“增产素”、“植 First, what is rare earth and rare earth fertilizer? RE (RE or R) is a metal element, its physical and chemical properties with the metal characteristics of the periodic table of the elements of the lanthanide (lanthanum, cerium, praseodymium, neodymium, Europium, gadolinium, terbium, dysprosium, holmium, erbium, acenaphthene, ytterbium, acenaphthene), and similar to this chemical properties of scandium, yttrium elements in general. Rare-earth fertilizer is rare earth minerals refined into mixed rare earth intermediate products, mainly in agriculture as a fertilizer application, due to less dosage, so called rare earth fertilizer. It is easy to process, the process is simple, lower cost, there is a certain increase in production. So high economic efficiency. Currently on the market, “Zeng Ling production”, “by the vegetarian”, "plant