LIU Miao,DI Shu-feng,FAN Chao,et al.Study on Degradation Performance of Biodegradable Film and Its Effect on Maize Growth[J].HEILONGJIANG AGRICULTURAL SCIENCES,2022,(09):31-36.[doi:10.11942/j.issn1002-2767.2022.09.0031]
新型生物降解地膜降解性能及对玉米生长的影响
- Title:
- Study on Degradation Performance of Biodegradable Film and Its Effect on Maize Growth
- Keywords:
- degradable film; soil temperature; soil moisture; maize; growth period; yield
- 文献标志码:
- A
- 摘要:
- 为了明确新型生物降解地膜自身特性及对土壤和作物的影响,通过覆膜玉米小区和大田试验,以普通地膜及无覆盖栽培为对照,探讨不同新型生物降解地膜的降解特性,研究生物降解地膜对土壤温度、土壤水分及玉米的生长特性和产量等方面的影响。结果表明,5种不同新型生物降解地膜中M1膜降解速率最快,当季可降解75%左右;生物降解地膜在花期前的保温保墒效果与普通地膜之间差异不显著,花期之后其保温保墒性能与降解速度呈负相关;覆膜可以促进玉米生育期提前,生物降解地膜可使玉米生育期提前8~11 d;覆膜可显著提高玉米产量,M1降解膜处理的玉米产量为955.45 kg·(667 m2)-1,比裸地对照增产17.21%。本研究认为生物降解地膜在农业生产中可以取代普通地膜。
- Abstract:
- In order to clarify the possibility of replacing common plastic film with ultra-thin controllable biodegradable plastic film and its effects on soil and crops,the degradation characteristics of different ultra-thin controllable biodegradable plastic film were discussed in this study.The effects of mulch on soil temperature,soil moisture,growth characteristics and yield of maize were studied by experiments in plots and fields.The results showed that the degradation rate of M1 film was the fastest among the five kinds of degradable films,which was about 75% in the current season.There was no significant difference between the soil temperature and moisture preservation effect of degradable plastic film before flowering and that of ordinary plastic film.After flowering,due to the different degrees of degradation of degradable plastic film,the soil temperature and moisture gradually approach to the bare ground.Film mulching could advance the growth period of maize,degradable film mulching could advance the growth period of maize by 8-11 d.Mulching could significantly increase the yield of maize,among which the yield of M1-treated maize was the highest,955.45 kg·(667 m2)-1,which was 17.21% higher than that of bare land control.Ultrathin controllable biodegradable plastic film can replace common plastic film in agricultural production.
参考文献/References:
[1]王琪,马树庆,郭建平,等.地膜覆盖下玉米田土壤水热生态效应试验研究[J].中国农业气象,2006,27(3):249-251.
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备注/Memo
收稿日期:2022-06-02