不同浓度微咸水灌溉对南疆棉花膜下滴灌生长的影响

Effects of Different Concentrations of Brackish Water Irrigation on Cotton Growth under Mulch Drip Irrigation in Southern Xinjiang

摘要: 为探究不同浓度微咸水灌溉对南疆棉花膜下滴灌生长的影响，通过设置4个盐分处理水平，1个常规水对照组，对棉花膜下滴灌株高、茎粗和地上部分干物质量的影响进行研究。灌溉水的含盐量大于4 g/L后，对于棉花的株高影响较大。灌溉水的含盐量大于6 g/L后，对于花的茎粗和地上部分干物质量影响较大，在南疆地区棉花膜下滴灌的灌溉水含盐量应该小于6 g/L。

Abstract: To investigate the effects of different concentrations of brackish water irrigation on cotton growth under mulch drip irrigation in Southern Xinjiang, four salinity treatment levels and a conventional water control group were established to study the impacts on cotton plant height, stem diameter, and above-ground dry matter mass. The results showed that when irrigation water salinity exceeded 4 g/L, cotton plant height was significantly inhibited. Furthermore, irrigation water salinity above 6 g/L notably affected stem diameter and above-ground dry matter accumulation. It is recommended that the salinity of irrigation water for cotton under mulch drip irrigation in Southern Xinjiang should be maintained below 6 g/L.