新疆农业科学2018，Vol.55Issue(10)：1895-1901,7.DOI:10.6048/j.issn.1001-4330.2018.10.016
降解地膜降解后对土壤增温保墒及棉花生长的影响
Effects of Degradation Plastic Film Mulch on Soil Temperature Soil Moisture Conservation and Cotton Growth
摘要
Abstract
[Objective] In view of the degradation process of degradable film in crop growth stage, the project aims to study the effect of oxo-biodegradation film on soil temperature and moisture conservation and cotton yield by field comparison experiments in the hope of suitable oxo-biodegradable mulching film for local cotton production.[Method]Four treatments were set up in the experiment, TZ1, TZ2, TZ3 treatment as degradation film treatment, CK treatment as common mulching film treatment.[Result]The results showed that the degradation rate and degree of the oxo-biodegradable mulching films were different and CK treatment did not degrade during the whole growth period of cotton. Almost no degradation occurred at 33 days after laying, and the film was completely degraded into debris after about 105 d TZ1 treatment. At harvest, the TZ2 degradation weight loss was 56.7％-66.2％, while the TZ3 degradation weight loss was less than 5％; When TZ1 was completely degraded, the time required was 100 d. There was no significant difference between the oxo-biodegradable mulch film and the ordinary plastic mulch film in cotton yield; In different stages of cotton, the stem diameter had no significant difference, while the cotton plant height in June of TZ1 and TZ2 treatments were significantly lower than that of TZ3 treatment; The order of soil temperature and soil moisture retention capacity at 0-10 cm under film was CK＞TZ3＞TZ2＞TZ1.[Conclusion]Premature fracture of oxo-biodegradable mulching film greatly reduced soil moisture & soil temperature, but there was no significant effect on cotton yield, so there is still room for improving the controllability and the thoroughness of the oxo-biodegradable mulching film.关键词
棉花/降解地膜/降解率/土壤温度/土壤水分Key words
cotton/oxo-biodegradable film/degradation rate/soil temperature/soil moisture分类
农业科技引用本文复制引用
崔磊,王斌,孙九胜,胡伟,周经纶,王金鑫,祁通,黄建,王新勇..降解地膜降解后对土壤增温保墒及棉花生长的影响[J].新疆农业科学,2018,55(10):1895-1901,7.基金项目
农业部公益性行业专项 (201503105) （201503105）
国家自然科学基金项目 (31660606) （31660606）
新疆维吾尔自治区重点研发 (2016B02017-4) （2016B02017-4）
自治区科研机构创新发展专项资金 (2016D04012) （2016D04012）
