可降解地膜在马铃薯上的应用效果研究

为了明确可降解膜在马铃薯生产上的应用效果.本研究选择7个可降解膜开展田间试验和填埋试验,分析不同覆膜处理对马铃薯产量和降解膜降解性能的影响.结果 表明覆膜处理较裸地处理可增产4.35％～14.62％,有4个降解膜较普通地膜增产1.48％～7.01％,但增产效果不显著(P＞0.05).在整个生育期地温呈现先升高后降低的变...

The Application Effect of Degradable Film in Potato Production

To clarify the application effect of degradable film in potato production, in this study, 7 kinds of degradable film were selected to carry out field and landfill experiments to analyze the effects of different film mulching treatments on potato yield and film degradation performance. The results showed that the potato yield of film mulching treatment was 4.35%-14.62% higher than that of bare ground treatment, and the potato yield of 4 degradable film treatments was 1.48%-7.01% higher than that of common film mulching, but the effect was not significant (P>0.05). In the whole growing period, the soil temperature increased first and then decreased. In May and June, the soil temperature of film mulching treatment was 0.42-1.29℃ and 0.39-1.09℃ higher than that of bare ground treatment respectively, and in July, the soil temperature of common film mulching was 0.52-1.36℃ higher than that of other treatments. All degradable films entered the induction period 12 to 22 days after mulching, and all of them were in the big split period at harvest time. After one year of landfill, the 4 kinds of whole biodegradable film were degraded at different degrees, and the 3 kinds of oxidized biodegradable film were not degraded. The results showed that the effect of degradable film on potato yield and soil temperature was basically the same as that of common film. Although the degradation rate of degradable film was slow and the degradation degree was low of the very year, it could be popularized and used in the long run. T1 degradation film is recommended to be popularized locally.