对于给定的水稻品种，作物收获指数(由籽粒产量除以地上部分总干物重求得)可能随作物管理措施不同而变化。
For a given rice variety, the crop harvest index, which is calculated by the grain yield divided by total dry matter produced above ground, may vary with crop management practices used.
棉花总吸氮量随著追氮量的增加而增加，但花铃期吸氮量占总吸氮量的比例呈下降趋势。
The total absorption of nitrogen increased with the amount of nitrogen topdressing, but the proportion of absorption nitrogen during the blooming period to total nitrogen were downtrend.
淋巴结隐匿性总转移率为25.5%，并随临床T分期的增高而增高。
The overall rate of occult lymph node metastasis was (25.5%), which increased with elevating clinical t stage.
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