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中文摘要：
盆栽试验被执行在土壤潮湿的不同地位下面在冬小麦上学习氮申请的效果，以便对水和氮协作的冬小麦回答的关键、敏感的阶段是坚定的。结果证明 N 化肥的申请比在以后的舞台在早舞台是更有效的，并且在非灌溉的条件下面比以更高的 N 率在更低的 N 评价。N 处理在每尖铁忍受数字和谷物数字的小穗状花小穗上有大效果，但是没在 1 000 谷物重量上有效果；对 N 处理的谷物收益和产量构成因素回答比在非灌溉的条件下面在灌溉条件下面是更大的。加入的阶段是对水和氮协作的冬小麦回答的关键、敏感的阶段，并且谷物每尖铁和增加的 1 000 谷物重量产出谷物数字，当水和 N 化肥在这个阶段被使用时。机制是在加入舞台的水和化肥供应能加快生长未葬庄稼，提高能力到吸收并且利用，并且同时，推迟根的老化并且为一个更长的时期保留根活力氮肥。
英文摘要：
Pot experiments were carried out to study the effect of nitrogen application on winter wheat under different status of soil moisture, so that the key and sensitive stage of winter wheat responses to water and nitrogen coordination were determined. The results showed that the application of N fertilizer was more effective in early stage than in later stage, and at the lower N rates than at the higher N rates under non-irrigated conditions. N treatments had great effect on spikelet bearing number and grain number per spike, but had no effect on 1 000-grain weight; Grain yield and yield component responses to N treatment were greater under irrigated conditions than under non-irrigated conditions. The joining stage was the key and sensitive stage of winter wheat responses to water and nitrogen coordination, and the grain yield, grain number per spike and 1000-grain weight increased, when water and N Fertilizer were applied at this stage. The mechanism is that water and fertilizer supply at joining stage can speed up the growth of above-ground crops, enhance the abilities to absorb and utilize nitrogen fertilizer, and meanwhile, delay the aging of the root and keep the root vigor for a longer period.
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