禾本科作物的产量形成过程可以分为三个阶段:①吸收营养及光合作用器官的形成;②花器及“产量容器”的形成;③“产量内容物”的产生,积聚及运转。氮用以促进作物植株的生长具有十分显著的作用。这种作用将通过这些过程来表现。下面试图说明作物植株及其籽粒的产生,特别是水稻植株对与氮有关的生理反应的形式及意义。 Yield formation of gramineous crops can be divided into three stages: ① absorption of nutrients and the formation of photosynthetic organs; ② the formation of flower pots and “yield containers”; ③ the production, accumulation and operation of “yield contents” . Nitrogen is used to promote the growth of crop plants has a very significant role. This effect will be manifested through these processes. The following is an attempt to illustrate the production of crop plants and their kernels, particularly the form and significance of rice plants to nitrogen-related physiological responses.