全生物降解地膜的降解效果及其对烤烟产质量的影响
Guizhou Agricultural Sciences(2017)
Abstract
为全生物降解地膜在烤烟生产上的推广应用提供参考,采用田间试验研究全生物降解地膜的降解效果及其对烤烟覆盖栽培产质量的影响.结果表明:采用1 m×0.010 mm白色全生物降解地膜进行烤烟覆盖栽培的效果最好,产量和产值分别达2 162.70 kg/hm2和50 426.70元/hm2,分别比PE膜覆盖栽培(2 098.20 kg/hm2和4 8651.90元/hm2)增加64.50 kg/hm2和1 774.80元/hm2,增长3.07%和3.65%;上中等烟率增加3.58百分点,节约成本199.20元/hrn2,且烟叶的物理结构适中、化学成分协调;在覆膜135 d时,全生物降解地膜的降解率达63%,比PE膜(3.5%)增加59.5百分点,有效解决了环境白色污染问题.
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Key words
full biodegradable mulching film,tobacco quality,tobacco yield,degradation
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