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The application for fertilizer-yield relationships of the ET-yield response factor equation

机译:ET-产量响应因子方程在肥料-产量关系中的应用

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摘要

Many attempts have been made to understand the plant response to water using plant growth models. The effects of fertilizer on crop yield are greater than those of water. Therefore, some models that have been developed for the evaluation of water-yield relationships can also be used for fertilizer-yield relationships. The purpose of this study was to develop an equation to use in fertilizer applications similar to one used to evaluate crop production under adequate and deficit water supply regimes. The equation can be rewritten for the fertilizer consumed by plants instead of the evapotranspiration (ET). Sample applications showed that the resulting ET-yield response factor equation can be used successfully in the evaluation of fertilizer-yield relationships. Thus, the yield loss per unit of fertilizer deficiency can be determined more precisely by the equation.
机译:已经进行了许多尝试来使用植物生长模型来理解植物对水的响应。肥料对作物产量的影响大于水分。因此,已经开发出一些用于评估水-产量关系的模型,也可以用于肥料-产量关系。本研究的目的是开发一种方程式,该方程式可用于化肥施用,类似于在充足和短缺的供水制度下用于评估作物产量的方程。可以为植物消耗的肥料而不是蒸散量(ET)重写方程式。样品应用表明,所得的ET-产量响应因子方程可成功地用于评价肥料-产量关系。因此,可以通过等式更精确地确定每单位肥料不足的产量损失。

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