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通过对杜仲叶不同采收方式的研究，结果认为，不同采叶方式对杜仲树体及叶生长均有不同程度的影响：采叶量愈大、采叶次数愈多，树木高、径生长量愈小，新生叶叶面积也愈小。但是，５０％ 采叶量组和７０％ 采叶量组、１ 次采叶组和２ 次采叶组差异不显著。所以，从采叶后对杜仲高、径生长量以及叶片生长的影响来看，一次采叶量以５０％ 左右为宜，一年内采叶次数不宜超过２ 次。
Through the study of different harvesting methods of Eucommia ulmoides leaves, the results showed that different harvesting methods had different effects on Eucommia ulmoides tree body and leaf growth: the larger the leaf harvesting quantity, the more leaf harvesting times, the higher tree height, the diameter growth The smaller, the new leaf area is also smaller. However, there was no significant difference between the 50% of the harvesting and the 70% of the harvesting, the one of the first harvesting and the second of the second harvesting. Therefore, from the leaves after the Eucommia ulmoides height, diameter growth and the impact of leaf growth point of view, the amount of about 50% of the time to cut leaves, leaf number within one year should not exceed 2 times.