磁化水滴灌对棉田土壤脱盐效果及棉花产量的影响  

Effects of Drip Irrigation with Magnetized Water on Soil Desalinization in Cotton Field and Cotton Yield

作　　者：李夏[1,2] 乔木[1] 周生斌[1] LI Xia QIAO Mu ZHOU Sheng-bin(Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, China University of Chinese Academy of Scienees, Beijing 100049, China)

机构地区：[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]中国科学院大学,北京100049

出　　处：《干旱区研究》2017年第2期431-436,共6页Arid Zone Research

基　　金：新疆水利科技项目专项玛纳斯绿洲棉花磁化水滴灌丰产技术应用示范(Y542061001)

摘　　要：以棉花为对象进行磁化水滴灌试验,通过田间小区试验,设置一次磁化、二次磁化和CK处理,研究不同磁场强度处理水灌溉对棉田土壤脱盐效果以及对棉花生长状况和增产效果的影响,旨在提出一种改良土壤盐渍化的新技术。结果表明:滴灌条件下磁化水可以有效增强对土壤全盐含量、Cl^-和Na^+的淋洗作用,二次磁化和一次磁化处理的脱盐作用显著大于对照处理,且二次磁化中3 600~2 000 m T效果最佳,二次磁化和一次磁化处理全盐含量分别降低了25.5%和19.5%,CK降低了10.46%;磁化水灌溉可以提高棉花的生物量,缓解盐分对棉花的伤害,提高棉花产量,增产率达9.61%~15.32%。In this study, the effects of drip irrigation with one-time magnetized water or two-time magnetized water and control treatment on soil desalinization in cotton field, cotton plant growth and cotton yield and quality were researched so as to propose a new technology for improving salinized soil. The results showed that magnetized water could be used to effectively desalinize soil under drip irrigation and improve the leaching of Cl- and Na ＋ in soil. Desalination effect of the treatments of two-time water magnetization and one-time water magnetization was significantly higher than that of the control treatment, and that of the treatment of two-time water magnetization of 3 600 - 2 000 mT was the most optimal. The soil salt content of two-time water magnetization and one-time water magnetiza- tion was decreased by 25.5% and 19.5% respectively, and that of CK was decreased by only 10.46%. Drip irrigation with magnetized water could be not only used to promote the growth of cotton plant, improve cotton boll branches and increase boll number, but also improve cotton yield and quality, and the cotton yield could be increased by 9.61% -15.32%.

关 键 词：磁化水 滴灌 棉田 土壤盐分 棉花产量 玛纳斯 新疆 

分 类 号：S562[农业科学—作物学]