不同生物降解膜在西瓜生产上的应用分析

Application Analysis of Different Biodegradable Films in Watermelon Production

为研究不同生物降解膜在西瓜生产上的使用效果,推进西瓜绿色生产,开展了不同材质和厚度生物降解膜对比试验。试验以4种不同生物降解膜为材料,以普通PE膜覆盖为对照,以北京春大棚小型西瓜为研究对象,对其覆盖效果、降解速率以及成本效益开展调查分析。结果表明:在提温保温方面金发生物降解膜表现最好;在对西瓜生育期的影响方面,4种全生物降解膜差异不明显,均可以满足西瓜生产的覆盖需求;在西瓜产量和品质方面,金发全生物降解膜表现最好,折合667 m^(2)产量为2964 kg,较对照提高5.56%,中心可溶性固形物含量为11.83%,较对照提高1.10百分点;在降解速率方面,华盛、弘睿和金发全生物降解膜均较对照降解快。综上,金发和华盛2种生物降解膜综合效果较好,适合在北京地区春大棚西瓜生产中应用。

In order to study the effect of different biodegradable films in watermelon production and promote the green production of watermelon,a comparative test of biodegradable films of different materials and thicknesses was carried out by small watermelon in spring greenhouse as the research object,with total of 4 kinds of biodegradable films as materials and ordinary PE film as the control,the covering effect,degradation rate and cost benefit of these films were investigated and analyzed.The results showed that the'Jinfa'biodegradable film had the best performance in terms of temperature improvement and heat preservation.In terms of the infl uence on the growth period of watermelon,there was no signifi cant difference between the four biodegradable films,and all of them could meet the needs of watermelon production.In terms of the yield and quality of watermelon,the'Jinfa'biodegradable film showed the best performance,the yield was 2964 kg per 667 m^(2),increased by 5.56%compared with the control,and the central soluble solid content was 11.83%,increased by 1.10 percentage points compared with the control.In terms of degradation rate,'Huasheng''Hongrui'and'Jinfa'biodegradable films all degraded faster than the control.It was concluded that'Jinfa'and'Huasheng'biodegradable films had good comprehensive effects and were suitable for the watermelon production in spring greenhouses in Beijing.