新疆无膜移栽地下滴灌棉花生长发育特点初步研究

Preliminary Study on Cotton Growth Characteristics of Non-Film Transplantation of Subsurface Drip Irrigation in Xinjiang

根据近年来新疆棉花膜下滴灌日益严重的残膜污染问题,提出将无膜移栽与地下滴灌有机结合,形成棉花无膜移栽地下滴灌技术,既可充分发挥移栽和地下滴灌的优势,提高水分利用效率,又可有效减缓白色污染。通过1年的盆栽试验研究,结果表明:无膜移栽地下滴灌棉花的吐絮期比覆膜直播地下滴灌及地表滴灌棉花均提前,全生育期有所延长,水分生产效率和产量均比较高;无膜移栽地下滴灌棉花与覆膜移栽地下滴灌棉花相比,全生育期累计耗水量总体相当,而产量及水分生产效率也均较高。

Cotton transplantation without plastic film of subsurface drip irrigation（SDI） is put forward according to the increasingly serious pollution problem of the scrap plastic film in Xinjiang cotton field, the technique can develop the advantage both transplantation and SDI, the water use efficiency （WUE）can be raised, and the white pollution can be decelerated effectively, the meaning is important in arid regin. By a year pot experiment research, The results show that the boll opening stage of cotton of the transplantation without plastic film of SDI appeared over 10 days in advance than the seeding cotton with film of SDI or DI, the whole growth period prolongs,WUE raises and the yeld all more than others. The total water consumption of the cotton transplantation without plastic film of SDI is almost equal to the ones with plastic film,but the yield and the WUE are higher than it.