摘要
为探索覆盖栽培、暴晒、填埋处理对不同可降解地膜的降解特征及对玉米生长发育、产量的影响,在海南省琼海市中原镇开展全生物可降解地膜降解评价试验。结果表明:覆盖栽培、暴晒、填埋处理对可降解地膜均有不同程度的影响,其中BD1可降解地膜在3种试验中的降解速度最快,BD2、BD3可降解地膜次之,BD4的降解速度最差,暴晒对其降解速率相比其他地区可提前50 d,4种可降解地膜在试验条件下均难以满足玉米的整个生长周期需求。覆盖普通地膜(PE)与可降解地膜处理对玉米生长发育的各个生长期和生长周期无显著性影响,但覆盖地膜相比不覆膜可缩短玉米生长周期8 d。覆盖地膜比不覆膜平均产量提高31.02%,4种可降解地膜相比普通PE膜均有不同程度的减产。
In order to explore the effects of cover cultivation, exposure and landfill treatment on different types of film degradation characteristics and growth and yield of maize, a biodegradable film evaluation experiment was carried out in Zhongyuan Town, Qionghai City, Hainan Province. The results showed that the cover cultivation, exposure and landfill had different effects on the degradable mulch film. BD1degradable mulch film had the fastest degradation rate in the three tests. BD2and BD3degradable mulch film followed, BD4the worst, the degradation rate of the sun exposure can be 50 days earlier than other regions. Covering ordinary PE film and degradable film treatment had no significant effect on the growth period and growth cycle of maize growth, but the coverage of the film could shorten the corn growth cycle by 8 days. The average yield of the covered mulch film increased by 31.02% compared with the uncoated film. The four degradable mulch films had different degrees of yield reduction compared with the ordinary PE film.
作者
倪斌
NI Bin(Agricultural Ecology and Resource Protection Station of Hainan,Haikou 570203,China)
出处
《东北农业科学》
2022年第6期25-28,79,共5页
Journal of Northeast Agricultural Sciences
基金
海南省重大科技计划项目(ZDKJ2021008)。
关键词
可降解地膜
生长发育
降解特征
海南
Degradable mulch
Growth and development
Degradation characteristics
Hainan
