海冰水灌溉对盐碱地棉花产量和品质的影响

The effect of sea ice water irrigation on cotton yield and quality in saline soil

通过2007～2009年3年对棉花生长发育、棉花产量及品质的数据分析,探讨了海冰水灌溉及海冰水施加聚丙烯酰胺(PAM)的灌溉模式对棉花生长发育、产量及品质的影响,并筛选了海冰水施加PAM时的高效施肥方式。发现海冰水比井水更能促进棉花的生长发育及品质、产量的提高,海冰水施加PAM的灌溉方式显著优于其它3种灌溉模式,PAM的作用在开荒耕种的第一年更为突出。海冰水施加PAM时,无机肥石膏配施的施肥方式对棉花生长发育、产量的作用为最佳,4种施肥方式对棉花品质各项指标的影响并无明显差异。矿化度为3 g/L的海冰水取代井水灌溉棉花盐碱地,不但能增收,还能有效缓解当地日益紧缺的淡水资源。海冰水灌溉可望成为棉花盐碱地新的有效灌溉模式。

In this paper,we analyzed 2007～2009 three years data of the cotton growth,yield and quality to explore the effect of the sea ice water and the irrigation methods of sea ice water applied PAM on cotton growth and development,yield and quality,and filter the best fertilization methods on the sea applied PAM irrigation methods.The sea ice water more than the well water was found to promote growth,output and quality of cotton,sea ice water irrigation methods applied PAM was significantly better than the other three irrigation methods,PAM＇s role in land reclamation for farming during the first year looked more prominent.When the sea ice water applied PAM,the inorganic fertilizer conditioner combined application of fertilization methods was the best on cotton growth and development in four types of fertilization methods,and on the indicators of the quality of cotton,there was no significant difference.In the end,we analyzed the sea ice water irrigation efficiency of resource use and found that mineralization of 3 g / L of sea ice water to replace the well water for irrigation of cotton saline-alkali land,not only could income,but also effectively conserve the local freshwater resources which became increasingly scarce.Sea ice water for irrigation will become a new and effective saline-alkali soil cotton irrigation patterns.