中国烟草科学2019，Vol.40Issue(4)：22-28,36,8.DOI:10.13496/j.issn.1007-5119.2019.04.004
不同地膜的降解性能及对烟株生长和土壤环境的影响
Degradation Property of Degradable Films and Their Effects on Flue-cured Tobacco Development and Soil Ecological Environment
摘要
Abstract
Aiming at decreasing agricultural pollution caused by plastic films, degradation of photo-oxygen degradation and bio-degradable films and their effects on flue-cured tobacco development, soil temperature, moisture, enzyme activities and microbial community were studied and the results were compared with plastic film and open field. The results indicated that the degradation performance of bio-degradable film was better than photo-oxygen degradation film, with a mass loss rate of 59.9% after applied to flue-cured tobacco for 245 days. The development, biomass and compatibility of conventional chemical constituents of flue-cured tobacco increased markedly by film covering compared with open field, and the effects of plastic film was the best, followed by bio-degradable film, last for photo-oxygen degradation film. At the early stages of the tobacco plant growth, the temperature and moisture content of soil treated with two kinds of degradable film were higher than that of the open field, which was significantly lower than that of the plastic film. At the middle and later stages of the tobacco plant growth, it was similar to that of the plastic film. Film covering increased significantly the soil acid phosphatase activities and the OTUs of soil bacteria and fungi. In addition, the microbial diversity and evenness of soil fungi and soil bacteria were decreased and improved separately with the treatments of biodegradable film and photo-oxygen degradation film. Bio-degradable film had excellent degradability, and no significant difference in the development of flue-cured tobacco and soil enzyme activities, microbial diversity and evenness with plastic film, suggesting that it could be applied to tobacco production.关键词
地膜/降解/土壤温度/土壤水分/酶活性/微生物群落Key words
film/degradation/soil temperature/soil moisture/enzyme activity/microbial community分类
农业科技引用本文复制引用
樊俊,谭军,邓建强,彭五星,赵秀云,郑海洲,朱宗第..不同地膜的降解性能及对烟株生长和土壤环境的影响[J].中国烟草科学,2019,40(4):22-28,36,8.基金项目
中国烟叶公司技术改进项目"不同降解地膜对比试验与示范"(2091709) （2091709）
