地膜残留对棉花根系生长发育的影响.doc
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地膜残留对棉花根系生长发育的影响,7200字 6页 优秀毕业论文推荐下载摘要: 现今关于残留地膜对植物土壤性质的影响和对植物生长发育的影响研究并不多见。本研究通过大田试验,在其他限制因子满足的条件下,通过人工添加不同数量地膜模拟不同数量地膜残留,有效控制土壤中地膜残留量,探讨地膜不同残留量下的残留地膜对棉花生长发育的影响。对深入理解白色污染的提供理论认...
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此文档由会员 方晓波 发布
7200字 6页 优秀毕业论文 推荐下载
摘要:
现今关于残留地膜对植物土壤性质的影响和对植物生长发育的影响研究并不多见。本研究通过大田试验,在其他限制因子满足的条件下,通过人工添加不同数量地膜模拟不同数量地膜残留,有效控制土壤中地膜残留量,探讨地膜不同残留量下的残留地膜对棉花生长发育的影响。对深入理解白色污染的提供理论认识。
Abstract: Dry matter weight of cotton plant and canopy/root ration reduced with adding residual plastic film which destroyed the harmonization of cotton root and shoot so that reduced the production of cotton .So the phenomenon that a certain amount of residual plastic film stimulated root growth was adaptive response of cotton plant ,but there was a negative influence of residual plastic film on biological yield and economic yield, and the more the amount of residual plastic film ,the more obvious the effect of yield reduction.
Key words: white pollution; cotton; residual plastic film; root
参考文献
[1] 肖 军,赵景波. 农田塑料地膜污染及防治[J]. 四川环境,2005,24 (1):102~105.
[2] 朱鹤健,何易庚.土壤地理学[M].北京:高等教育出版社,1992,57~58.
[3] 李少昆,王崇桃,汪朝阳,等.北疆高产棉花根系构型与动态建成的研究[J].棉花学报,2000,12 (2):67~72.
[4] 赵素荣,张书荣,徐 霞,等.农膜残留污染研究.农业环境与发展[J].1998, 15 (3):7~10.
摘要:
现今关于残留地膜对植物土壤性质的影响和对植物生长发育的影响研究并不多见。本研究通过大田试验,在其他限制因子满足的条件下,通过人工添加不同数量地膜模拟不同数量地膜残留,有效控制土壤中地膜残留量,探讨地膜不同残留量下的残留地膜对棉花生长发育的影响。对深入理解白色污染的提供理论认识。
Abstract: Dry matter weight of cotton plant and canopy/root ration reduced with adding residual plastic film which destroyed the harmonization of cotton root and shoot so that reduced the production of cotton .So the phenomenon that a certain amount of residual plastic film stimulated root growth was adaptive response of cotton plant ,but there was a negative influence of residual plastic film on biological yield and economic yield, and the more the amount of residual plastic film ,the more obvious the effect of yield reduction.
Key words: white pollution; cotton; residual plastic film; root
参考文献
[1] 肖 军,赵景波. 农田塑料地膜污染及防治[J]. 四川环境,2005,24 (1):102~105.
[2] 朱鹤健,何易庚.土壤地理学[M].北京:高等教育出版社,1992,57~58.
[3] 李少昆,王崇桃,汪朝阳,等.北疆高产棉花根系构型与动态建成的研究[J].棉花学报,2000,12 (2):67~72.
[4] 赵素荣,张书荣,徐 霞,等.农膜残留污染研究.农业环境与发展[J].1998, 15 (3):7~10.