Analysis of the Impact of the 2014 Drought on Winter Wheat Yield in Shangqiu City

Using winter wheat yield data of precipitation,temperature and winter wheat three crops area during the growing period in Shangqiu in2014,the adverse effects of drought on winter wheat yield formation were analyzed. The results showed that: the drought has great effect on winter wheat density,from jointing to heading stage in winter wheat drought will make effective spikelet number,grain number per ear,grain weight reduction. Recommendations in the insufficient water or irrigation conditions difficult conditions,drought can be focused on irrigation at booting stage,not only can save water,but also can achieve the purpose of increasing production.