]*>","")" /> Effect of Different Irrigation Quota and Cycle under Mulched Drip Irrigation on Cotton Growth and Yield
Xinjiang Agricultural Sciences

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Effect of Different Irrigation Quota and Cycle under Mulched Drip Irrigation on Cotton Growth and Yield

WANG Yi-min;Hudan·Tumarbay;ZHANG Jin-zhu;YI Peng-fei;WU Zheng-guang   

  • Received:2010-09-25 Revised:2010-09-25 Online:2010-09-25 Published:2010-09-25

膜下滴灌不同灌溉定额及灌水周期对棉花生长和产量的影响

王一民;虎胆·吐马尔白;张金珠;戈鹏飞;吴争光   

  1. 新疆农业大学水利与土木工程学院,乌鲁木齐,830052





摘要： [目的]在膜下滴灌条件下,灌溉定额及灌水周期对棉花生长和产量的影响.[方法]通过设置不同的灌水定额及灌水周期,在灌水前后对土壤水分进行监测,测定不同生育期的花铃数及株高等生理指标.[结果]低灌溉定额条件下,灌水周期对棉花株高影响不明显,随灌溉定额的增大,株高逐渐增大;当灌溉定额一定时,随灌水周期的增大,株高减小;灌溉定额为3 300 m3/hm2,灌水周期为8 d时,棉花结铃数最多,对提高棉花产量有利,灌水周期为10 d的结铃数最小.[结论]灌溉定额为5 100 m3/hm2时,灌水周期为10 d可使棉花提前现蕾;灌溉定额为4 688 m3/hm2,灌水周期为8 d时,产量最高,综合效益最高.