稀土高效肥(简称稀土肥)是以化学元素周期表ⅢB 中镧系和 Sc(钪)、Y(钇)为主,配合氮、钾、硼、锌等其它元素制成。稀土应用于农作物上已有大量的研究报道,在林业上的应用报道少见。为了探讨稀土肥在林业上的应用效果,我们于1990年进行了板栗砧木苗上稀土肥叶面喷施试验,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 Ⅲ B lanthanoid and Sc (Sc), Y (yttrium), with nitrogen, potassium, boron, zinc and other elements made. Rare earth has been applied to crops on a large number of studies reported in the forestry applications reported rare. In order to explore the application of rare earth fertilizer in forestry effect, we carried out in 1990 chestnut rootstock seedlings of foliar fertilizer spraying on the foliage, the test results are summarized below.