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根据多年试验资料，针对民勤干旱缺水，无霜期短，苦咸水资源利用效率和效益低的实际．研究提出了超早熟区苦咸水灌溉棉花节水高效生产技术，即低拱棚种植技术、地膜覆盖技术、足墒播种技术、矮杆密植技术和控水灌溉技术等。试验证明：苦咸水区发展地膜棉花节水高效，籽棉产量达4300～4800kg／hm2，净效益19560元/hm2，水效益达4.74元／m3，是春小麦的4．56倍，春小麦-玉米“带田”的4．69倍，瓜类的2．14倍。发展低拱棚地膜棉花是苦咸水区农民脱贫致富奔小康的有效措施，其籽棉产量达6000～7500kg/hm，净效益可达26505元／hm2，是春小麦的4.6倍，“带田”的2.86倍，瓜类的2.93倍；水效益662元／m3，分别是春小麦、“带田”、瓜类的6．37倍、6．55倍、3.15倍。发展低拱棚及地膜棉花是苦咸水资源高效合理利用的有效途径，也是干旱缺水区水资源可持续高效利用的重要途径之一。
According to years of experimental data, aiming at the actual situation of Minqin drought and water shortage, short frost-free period, utilization efficiency of brackish water resources and low benefit. The research put forward the technology of water-saving and efficient production of cotton with brackish water irrigation in ultra-precocity area, that is, the technique of low-arch planting, mulching and mulching, sowing technique of planting moisture, dwarf planting technique and irrigation control technology. The results showed that the cotton with water-saving and efficiency was developed in the brackish water area. The yield of seed cotton was 4300 ~ 4800kg / hm2, the net benefit was 19,560yuan / hm2, and the water benefit reached 4.74yuan / m3, 4.56 times that of spring wheat. 4.69 times with “field”, 2.14 times of melons. The development of low arch plastic film cotton is an effective measure for peasants in brackish water area to get out of poverty and become well-to-do families. The yield of cotton seed and cotton reached 6000-7500kg / hm, net benefit of 26505 yuan / hm2, 4.6 times that of spring wheat and 2.86 Times, melons 2.93 times; water efficiency of 662 yuan / m3, respectively, is spring wheat, “bring field”, melons 6.37 times, 6.55 times, 3.15 times. The development of low arch sheds and mulching cotton is an effective way to utilize the resources of brackish water efficiently and rationally, and it is also one of the important ways to sustainably and efficiently use water resources in the arid and dry areas.