光-生双降解膜覆盖下的夏玉米试验研究  

Experimental Study on Summer Corn Mulched by Photo-Biodegradable Polyethylene Film

作　　者：吴从林[1] 黄介生[2] 沈荣开[2] 

机构地区：[1]中国科学院武汉岩土力学所,湖北武汉430071 [2]武汉大学水利水电学院,湖北武汉430072

出　　处：《农业环境保护》2002年第2期137-139,共3页Agro-Environmental Protection

基　　金：九五"重点项目"华北平原农田节水技术及环境效应研究

摘　　要：对普通膜与光-生双降解膜覆盖下的夏玉米试验结果进行了分析。结果表明,在诱导期之前降解膜与普通膜在增温和保墒方面无明显差异,但在诱导期之后,降解膜的增温和保墒效应明显下降;同时试验表明,覆盖降解膜对解决农田生态环境的“白色污染”具有重要意义。An experimental study dealing with summer corn covered by photo-biodegradable polyethylene film was evaluated with control. The results showed that no difference was clearly observed between the degradable polyethylene film and ordinary polyethylene film in terms of soil temperature and soil water content before the abduction period. However, the ability of increasing temperature and reserving water content for the degradable polyethylene were sharply dropped.In addition, it was showed that covering the degradable polyethylene was crucial to resolving so-called 'White Pollution' of agriculture ecological environments.

关 键 词：夏玉米 试验研究 光-生双降解膜 诱导期 温度 墒情 可降解性塑料薄膜 膜覆盖 

分 类 号：S513[农业科学—作物学]