| To explore the effects of sprinkler irrigation on wheat yield and quality,this study was conducted at Lantian county,Shaanxi province at the northern foot of the Qinling Mountains for sprinkler irrigation experiment and production demonstration of wheat at different growth stages. The results showed that sprinkler irrigation during wintering and jointing could significantly increase wheat yield and income,by 22.0% to 95.7% and 16.5% to 83.6%,respectively. Sprinkler irrigation could significantly increase number of ears,grain number per spike and thousand-kernel weight. The spike number,the number of grains and thousand-kernel weight were increased by 29.5% to 61.7%,2.3% to 6.5% ,and 0.6% to 8.7%,respectively. Sprinkler irrigation can significantly improve water use efficiency by 9.3% to 82.7%. After irrigation,the grain bulk density,water absorption and maximum tensile resistance were increased,with the increase rate of 1.8% to 2.6%,0.5% to 1.4% and 0.6% to 1.9%,respectively,but the other quality indices were decreased,such as milling quality and processing quality. The content of protein and hardness were decreased by 5.2% to 8.1% and 6.0% to 9.4%,respectively,and the maximum tensile area,sedimentation value,wet gluten content and stability time were decreased by 5.2% to 7.8%,13.1% to 17.3%,[JP3]3.7% to 7.8% and 31.3% to 42.4%, respectively.[JP] |
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