摘要
为筛选出易降解或易回收,对环境污染小,适宜在番茄生产中应用的地膜,研究了PBAT生物降解地膜与0.012 mm加厚型塑料地膜的差异性,以0.010 mm普通塑料地膜作为对照,对比了各种地膜的降解周期,以及对番茄生长和产量的影响。试验结果表明:在影响植株长势方面,3种地膜对番茄植株株高、茎粗、叶片数的影响差异不显著;在影响作物产量方面,覆盖0.012 mm地膜的番茄产量最高,其次是PBAT生物降解地膜,覆盖0.010 mm塑料地膜番茄产量最低;在地膜降解性能方面,PBAT生物降解地膜降解性能较强,0.012 mm加厚型塑料地膜韧性强,不易破碎,有利于后期回收利用,0.010 mm塑料地膜韧性差,不利于回收;建议生产中根据实际气候、土壤、作物等条件选择适宜的PBAT生物降解地膜或加厚型塑料地膜。
In order to screen out plastic mulch which was easy to degrade or recycle and had little environmental pollution,and was suitable for the application in tomato production,the differences between PBAT biodegradable mulching film and 0.012 mm thickened plastic mulch were researched,taking the 0.010 mm ordinary plastic mulch as contrast,the degradation cycles of the three kinds of mulch were contrasted,as well as the effects on tomato growth and yield.The results showed that there was no significant differences in plant height,stem diameter and leaf number among the three kinds of plastic m ulch.In terms of the impact on crop yield,tomatoes covered with 0.012 mm plastic mulch had the highest yield,followed by PBAT biodegradable mulching film,and tomatoes covered with 0.010 mm plastic mulch had the lowest yield.In terms of the degradation performance of plastic m ulch,the biodegradation performance of the PBAT biodegradable mulching film was strong,the toughness of 0.012 mm thickened plastic mulch was strong and not easy to break,which was conducive to the later recovery and utilization,and the toughness of 0.010 mm plastic mulch was poor,which was not conducive to recycling.It was suggested that PBAT biodegradable mulching film or thickened plastic mulch should be selected according to the actual climate,soil,crop and other conditions.
作者
侯爽
王帅
祁俊锋
徐进
HOU Shuang;WANG Shuai;QI Junfeng;XU Jin(Beijing Agricultural Technology Extension Station,Beijing 100029,China;Beijing Llifulong Agricultural Co.,Ltd.,Beijing 102109,China)
出处
《蔬菜》
2020年第7期11-14,共4页
Vegetables
基金
果类蔬菜产业技术体系北京市创新团队项目(BAIC01-2018)
北京市农业局项目(20180101)。
关键词
PBAT生物降解地膜
加厚型塑料地膜
番茄
降解性能
PBAT biodegradable mulching film
thickened plastic mulch
tomato
degradation performance
