Studies conducted locally and abroad show that honeybee pollination increases crop yield by up to 40 percent.
在本地及海外进行的研究显示高达百分之四十的蜜蜂授粉提高作物产量的影响。
The requirement for K supply increases with the increasing of crop yield and quality.
随着农产品产量和品质的不断提高，作物对钾素的需要量也不断增加。
The crop yield increases with the thickness of covered soil increasing.
作物产量也随复土厚度增加相应增加。
The crop yield increases with the thickness of covered soil increasing.
作物产量也随复土厚度增加相应增加。
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