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以称重控水的方法进行盆栽试验。结果表明，不同水分胁迫时期对小麦产量影响的程度顺序是：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。以上各时期水分胁迫分别减产１８．２３～３０．６１％、９．３０～１６．５４％、６．７６～８．９９％和１．０４～４．３６％。水分胁迫对氮肥肥效及养分吸收量的影响与对产量的影响大体一致；对养分的吸收组成影响不大。抽穗前的水分胁迫对磷的吸收的限制程度小于对产量形成的限制程度，抽穗后则相反。水分胁迫对钾素向籽粒的转移有一定影响。
The method of weighing water control pot experiments. The results showed that the order of the effects of different water stress on the yield of wheat was: from jointing stage to heading stage> heading stage to early filling stage> early filling stage to maturity stage> turning green to jointing stage. The above water stress reduced the yield by 18.23-30.61%, 9.30-16.54%, 6.76-8.99% and 1.04-4.46% respectively. The effects of water stress on the efficiency and nutrient uptake of nitrogen fertilizers were generally the same as those on the yield, but had little effect on nutrient uptake. The limitation of phosphorus uptake by the water stress before heading is less than the restriction on the yield formation, but the opposite after heading. Water stress has some effect on the transfer of K to grain.