降解地膜覆盖对马铃薯产量及品质的影响

摘要

本文旨在研究降解地膜覆盖对马铃薯产量和品质的影响，实验选在山东省邹城市峄山生态农业示范园内进行，以普通非降解地膜为对照，以3种供试降解地膜为处理，进行单因素实验。结果表明，PHA地膜的增温效果较差，其余3种地膜效果差异不明显。从产量来看，PHA地膜的产量最小，但是干物质和淀粉含量最高，而另外3种地膜的产量高，干物质和淀粉含量相对较少。从地膜残留量上来看，普通地膜的残留量最大，其它3种地膜到收获时，基本腐烂。综合产量、品质以及可操作性几个方面来看，供试的天壮Ⅱ号膜的效果最好，能较好地满足马铃薯生产需求，解决了对环境污染和不影响产量的问题，是较为理想的地膜品种，值得大面积推广。%The single-factor experiment of effect of different degradable mulching on yield and quality of potato( L.) was carried out in Yishan eco-agricultural demonstration garden in Shandong province.Result showed that the temperature raising effects of the PHA was worse than control, while there was no significant difference among the other three films. With regards to potato yield, the PHA exhibited the least yield, but the accumulation of dry matter and starch was highest, while the other three was contrast tendency. Taken together, there was little residue which could cause environmental pollution as well as no effect on potato yield of the other three degradable mulching films.