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用称重控水的方法进行盆栽试验。研究结果表明:小麦生育期干旱胁迫影响其氮素的吸收、运转及产量,影响的程度依次为:拔节至抽穗期>抽穗至灌浆初期>灌浆初期至成熟期>返青至拔节期。拔节至抽穗期干旱胁迫极显著地降低冬小麦的氮素营养效率。
Weighing the water by the method of pot experiment. The results showed that: the drought stress during the growth of wheat affected the uptake, transportation and yield of nitrogen, the order of effect was: from jointing to heading stage> heading to filling stage> early filling stage to ripening stage> returning to greening to jointing stage. The drought stress from jointing to heading stage significantly reduced the nitrogen nutrition efficiency of winter wheat.