稀土高效肥(简称稀土肥)是以化学元素周期表ⅣB 中的镧系和 Sc(钪)、Y(钇)为主,配以氮、钾、硼、锌等其它元素而制成。稀土应用于农作物上已有大量的研究报道。为了研究稀土肥在林业上的使用效果。我们于1989年在一年生杉木实生苗上进行了叶面喷施试验,现将试验结果整理如下。 Rare earth and high efficiency fertilizer (referred to as rare earth fertilizer) is based on the periodic table IVB lanthanum and Sc (Sc), Y (yttrium) mainly with nitrogen, potassium, boron, zinc and other elements made. Rare earth has been used in crops on a large number of studies reported. In order to study the use of rare earth fertilizer in forestry effect. We were in 1989 annual fir seedlings on the foliar spray test, the test results are summarized below.