新疆农业科学2017，Vol.54Issue(2)：206-212,7.DOI:10.6048/j.issn.1001-4330.2017.02.002
北疆滴灌棉花的可降解地膜安全期研究
Probe into Degradable Plastic Film Mulching during Cotton Safety Period under Drip Irrigation in Northern Xinjiang
摘要
Abstract
[Objective] To make clear plastic film mulching cotton safety period and study the effects of different degradation films on soil temperature,moisture and the yield of cotton under drip irrigation.[Method]The experiment set up 5 treatments with 3 repeated times,T1-T4 treatment was for the degradation of plastic film processing,and T5 was for ordinary plastic film processing.[Result]The results showed that: the laying of eighty-fifth days(July 17th)T1 treatment,plastic film was completely degraded and only partially degraded by T2 treatment.However,degradation began after 130 days(August 31)later by T3 treatment.T4 treatment made no degradation at all.The soil temperature was increased in April,May and June between 55.4％-62.6％,14.3％-23.5％and 9.6％-14.2％,by all treatments,in July it did show warming effect;and water retention performance of the membrane was not associated with its thickness and degradation rate,among them,T4 treatment produed the best water retention.Plastic film was laid 85 days ago,the plastic film degradation time was inversely proportional to cotton growing development and yield.And 85 days later,the film was not degraded by T3,T4 and T5 treatment,which showed no significant difference in cotton yield.[Conclusion]In summary,the plastic degradation time 85 days after the cotton flowering period can effectively exert the soil warming effect to achieve the stable production.关键词
降解地膜/安全期/温度/水分/产量Key words
degradable mulch film/safety period/temperature/moisture/yield of cotton分类
农业科技引用本文复制引用
李君,何文清,刘晓伟,李志强,田玲枝,朱春梅,吕军..北疆滴灌棉花的可降解地膜安全期研究[J].新疆农业科学,2017,54(2):206-212,7.基金项目
国家公益性行业(农业)科研专项"残膜污染农田综合治理技术方案"(201503105) （农业）
新疆生产建设兵团第八师石河子市科技局项目"棉田地膜污染农艺治理技术研究与示范"(2014NY02) （2014NY02）
农业部旱作节水农业重点实验室基金"降解地膜对棉田土壤环境及棉花产量影响研究"(2016KLDA02) Special Fund for Agro-scientific Research in the National Public Interest"comprehensive treatment technical solution of film pollution"(201503105) （2016KLDA02）
Science and Technology Program of Shi hezi in the Eighth Division of Xinjiang Production and Construction Corps "Cotton film pollution agricultural technology research and demonstration"(2014NY02) （2014NY02）
The Ministry of Agriculture Key Laboratory of Dryland Agriculture Program "Study on the effects of biodegradable film mulching on soil environment,yield of cotton"(2016KLDA02) （2016KLDA02）
