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本研究以中林４６杨、毛白杨（８０）、豫杂１号泡桐１年生苗木，Ｊ３３３旱柳、紫穗槐２年生苗木及苹果树为材料，进行了稀土应用研究。结果表明，应用稀土可以显著促进苗木径、高生长，提高苗木质量；提高苹果产量，改善苹果品质。认为：１年生苗木合理的喷施浓度为ＣＬ－３号稀土７５～１００ｐｐｍ液，２年生苗本为ＣＬ－３号稀土１００～１５０ｐｐｍ液，４年生金帅苹果树为ＣＬ－３号５００ｐｐｍ液。
In this study, the rare earth application was studied in Zhongyang 46 poplar, Populus tomentosa (80), 1-year-old Paulownia yuyou 1-year-old seedlings, J333 willow seedlings, 2-year-old Amorpha fruticosa seedlings and apple tree. The results showed that the application of rare earth can significantly promote seedling diameter, high growth, improve seedling quality; improve apple yield, improve apple quality. The results showed that: 1-year-old seedlings reasonable spray concentration of CL-3 rare earth 75 ~ 100ppm liquid, 2-year-old seedlings of CL-3 rare earth 100 ~ 150ppm liquid, 4-year-old gold handsome apple tree CL-3 500ppm liquid.