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通过南酸枣育苗使用稀土叶面喷施试验，研究不同浓度稀土溶液对南酸枣苗木生长的影响程度。试验结果表明，适宜浓度的稀土溶液对幼苗生长有明显的增益作用，不宜的浓度却抑制苗木生长。对南酸枣而言，１０００—２５０００ｍｇ／Ｌ浓度范围内的稀土溶液，高生长可提高５—２０％；粗生长可提高１４—２０％。３０００ｍｇ／Ｌ浓度使高生长减少４％，粗生长减少４０％左右。
The effect of different concentrations of rare earth solution on the growth of Z. jujube seedlings was studied by spraying the leaves of Z. jujuba with rare earths. The results showed that the appropriate concentration of rare earth solution on the growth of seedlings have a significant role in the gain, the inappropriate concentration but inhibit seedling growth. For the southern jujube, rare earth solution concentration range of 1000-25000mg / L, high growth can be increased by 5-20%; coarse growth can be increased by 14-20%. The concentration of 3000mg / L reduced the growth by 4% and the growth by 40%.