[1]唐永金,刘俊利.光解地膜降解产物对大豆的影响[J].大豆科学,2015,34(01):103-107.[doi:10.11861/j.issn.1000-9841.2015.01.0103]
　TANG Yong-jin,LIU Jun-li.Effects of Degradation Products of Light-degradable Film on Soybean[J].Soybean Science,2015,34(01):103-107.[doi:10.11861/j.issn.1000-9841.2015.01.0103]
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光解地膜降解产物对大豆的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第34卷 期数: 2015年01期 页码: 103-107 栏目: 出版日期: 2015-02-25
Title:
Effects of Degradation Products of Light-degradable Film on Soybean
作者:
唐永金1; 2;  刘俊利1
1.西南科技大学 农学院，四川 绵阳 621010；
2. 西南科技大学 生物质材料教育部工程研究中心，四川 绵阳 621010
Author(s):
TANG Yong-jin1; 2;  LIU Jun-li1
1Agronomy College, Southwest University of Science and Technology, Mianyang 621010, China；
2Biomass Materials of Ministry of Education Engineering Center,Southwest University of Science and Technology,Mianyang 621010,China
关键词:
光解地膜; 降解产物; 土壤; 大豆
Keywords:
Light-degradable film;  Degradation products;  Soil;  Soybean
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2015.01.0103
文献标志码:
A
摘要:
针对光解地膜的裂解产物和分解产物对作物的影响进行研究，为以聚乙烯为原料的光降解地膜的研制和推广提供理论依据。用7×5、4×5和1×5 cm2的光解地膜碎片、线性低密度聚乙烯（LLDPE）和低分子量聚乙烯(LMWPE)，模拟光解地膜的降解产物；以7，70，140，210，280和350 g?m-2模拟残留量，以无降解产物处理为对照；盆栽试验，6次重复，研究光解地膜降解产物和残留量对大豆生长中期土壤养分和大豆农艺性状的影响。结果表明：（1）光解地膜各种降解产物对大豆生长中期土壤pH略有增加作用，而对有机质含量、碱解氮、有效磷和速效钾有不同程度的降低作用；（2）光解地膜降解产物对大豆株高、株有效荚数、株粒数、百粒重、株粒重有增加的作用，但不同降解产物和残留量的作用大小不同。因此，光解地膜降解产物可以促进大豆生长期间土壤养分的分解和吸收，可在一定程度上提高大豆单株产量。
Abstract:
The effects of degradation products of light-degradable film on crop were researched to provide support for the development and popularization of polyethylene-based degradable mulching film theoretically. Taking 7×5, 4×5 and 1×5 cm2 scraps of light-degradable film, LLDPE and low molecular weight polyethylene (LMWPE) as 5 degradation products and 7,70,140,210,280 and 350 g?m-2?as amount of residue, and 0 g?m-2?as control, the effects of the degradation products on nutrient content in the soil during the middle growing period of soybean and agronomic traits of soybeans were investigated. The results were the following:（1）All the degradation products made pH level of the soil a litlle increase, but the content of organic matters, available N, P and K decrease during the middle growing period of soybean; (2) All the degradation products made the yield of soybeans higher than CK. Therefore, the degradation products can promote nutrient decomposed and absorbed in the soil and raise soybean yield.

参考文献/References:

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备注/Memo

基金项目：国家“十一五” 科技支撑计划(2007BAE42B04)；西南科技大学项目（13zxbk04）。

第一作者简介：唐永金（1958-），教授，主要从事作物栽培生态与生态修复研究。E-mail：tangyj758@sohu.com。

更新日期/Last Update: 2015-04-13