Rachis - removing could increase grain weight, while defoliation could lower grain weight.
剪库增加粒重, 而剪源则降低粒重.
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Viticulture: Traditional; defoliation and green harvest to have optimal yield control.
种植方式: 传统种植, 疏叶疏果来控制产量.
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Defoliation is achieved by adding elements which have a greater affinity than iron for oxygen.
脱氧是加进同氧的亲和力比铁更大的元素来实现的.
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