花生可降解地膜筛选研究

Screening of Different Degradable Film on Peanut Cultivation

为防止白色污染,提高吉林省西部花生生产的产量与质量,进行5种可降解地膜的筛选试验研究。结果表明:可降解地膜Q3降解速度过快,其他降解地膜降解期较适宜;花生降解地膜的增温保墒效果主要体现在花生生育前期,而且增温保墒的效果与普通地膜相当;覆盖降解地膜能够增加花生产量,比不覆膜增产15.3%～39.5%。其中Q5与Q1两种花生降解地膜的效果较好,能够满足花生不同生育期对土壤温度、水分的需求,前期增温保水,后期增渗,且可以减少白色污染,具有广阔的应用前景。

In order to prevent the white pollution of films and improve the yield and quality of peanut in western Jilin province,a contrast experiment on five kinds of degradable film was carried out.The results showed that the degradation speed of degradable film Q3 was too fast,degradation periods of other kinds of degradable film were suitable.Degradable film could achieve similar effect as the common plastic film in raising temperature and retaining humidity.The yield of peanut covered with degradable films were higher than that uncovered with film,increased by15.3%-39.5%.Q5 and Q1 could satisfy the need of soil temperature and moisture for peanut in different growth stages.In the early stage,they could increase temperature and contain water;in the later stage,they could increasethe infiltration of water.In addition,they could reduce the white pollution and had good ecological and economic benefits and broad application prospects.