首页|棉花用改性生物降解聚乙烯农用地膜的研究

棉花用改性生物降解聚乙烯农用地膜的研究

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本研究旨在改进一种既能有效增温保墒又能防治残膜渗透与土壤污染的改性生物降解聚乙烯地膜.运用试验法与对照法,对比了普通地膜和改性生物降解聚乙烯地膜在实验室条件下的性能差异,并进行了为期72 h的紫外老化处理及红外表征分析,结果显示,改性生物降解聚乙烯地膜几乎全部降解,而普通地膜几乎无变化.此外,在相同厚度和测试条件下,2种类型地膜表现出相似的物理特性.进一步地,在山东省德州市棉花农田中进行大田试验,结果显示可降解地膜的保墒性能与普通地膜相当,优于裸地,地膜的降解效果符合设计目标.本研究采用的地膜在性能上与普通地膜相当,具有较好的降解能力,为防治残膜渗透与土壤污染提供一种新产品.
Study on Modified Biodegradable Polyethylene Agricultural Mulch Film for Cotton
This paper aims to improve polyethylene film to prevent residual film infiltration and soil pollution under the premise of keeping temperature and moisture. The common film and the modified biodegradable polyethylene film were used in the film mulching experiment by using the test method and the comparison method. The results of laboratory tests showed that after 72 hours of ultraviolet aging treatment and infrared characterization,the modified biodegradable polyethylene film was almost completely degraded,while the ordinary film had almost no change. Under the same thickness and test conditions,the properties of the modified biodegradable polyethylene film were basically the same as those of the ordinary film. The field experiment of two kinds of films applied to cotton field in Dezhou City,Shandong Province showed that the moisture retention performance of the degradable polyethylene film was equivalent to that of the common film,and better than the bare land. And the degradation effect of degradable mulching film was in line with the design goal. The modified biodegradable polyethylene film used in this paper has the same performance as common mulch film,and has better degradation ability,which provides a new product for preventing residual film penetration and soil pollution.

mulching filmpolyethylenebiodegradablesoil pollutiondegradablemoisture retention performance

任帅、刘飞、李静、周经纶、王丽红、岳秀利、孙义凡、张笑来、张恒

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济南市槐荫区农业综合服务中心,济南250117

济南中科广源环保科技有限公司,济南250000

山东大学化学与化工学院,济南250100

地膜 聚乙烯 生物降解 土壤污染 可降解 保墒性能

2024

中国农学通报
中国农学会

中国农学通报

CSTPCD
影响因子:0.891
ISSN:1000-6850
年,卷(期):2024.40(36)