增加吸收根数量，促进树体的生长发育。
It can increase the number of absorbing roots and promote the growth of trees.
银杏吸收根营养元素吸收及分配规律的能谱分析。
Studies of energy spectrum analysis on the absorption and distributive laws of nutrient elements in sucking roots of ginkgo biloba l.
进行中耕锄草处理的冬枣树，上层生长根和吸收根变化幅度较大，变化不定；
Under intertilled weeding, the growth root and the absorption root in the surface layer chang a lot, and the changing is not steady;
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