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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (29): 113-119.doi: 10.11924/j.issn.1000-6850.casb16030070

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

垄作覆膜对冷浸田的改良效果研究

王文军,张祥明,江小伟   

  1. 安徽省农业科学院土壤肥料研究所/安徽省养分循环与资源环境省级实验室 合肥,安徽省农业科学院土壤肥料研究所/安徽省养分循环与资源环境省级实验室 合肥,安徽省歙县农业技术推广中心 歙县
  • 收稿日期:2016-03-09 修回日期:2016-05-19 接受日期:2016-05-25 出版日期:2016-10-12 发布日期:2016-10-12
  • 通讯作者: 王文军
  • 基金资助:
    安徽省农科院学科建设项目“水稻超高产生产体系中养分调控技术研究”(15A1021)；公益性行业(农业)科研专项“江南地区冷浸田治理技 术研究与示范”(201003059)。

Improvement Effects of Ridge Culture with Plastic Film Mulching on Cold Waterlogged Paddy Fields

  • Received:2016-03-09 Revised:2016-05-19 Accepted:2016-05-25 Online:2016-10-12 Published:2016-10-12

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摘要： 评价垄作和垄作覆膜对冷浸田的改良效果，为提升冷浸田肥力水平提供科学依据。利用田间定位试验研究垄作覆膜对冷浸田土壤温度、水稳性团聚体数量、还原性物质含量、有机质氧化稳定性及水稻产量的影响。相比习惯耕作，垄作和垄作覆膜均能显著提高水稻产量，3 年平均产量提高4.9%~16.8%，垄作覆膜对水稻增产的效果更佳；能提高水稻生育前期土壤温度，垄作覆膜增温效果较好；能显著提高土壤＞0.25 mm水稳性大团聚体含量，单一垄作能显著提高土壤＞1 mm团聚体含量，而覆膜则能显著提高土壤0.5~1 mm团聚体含量；单一垄作能降低还原性物质含量，田间水分管理及水稻生育时期影响垄作覆膜对还原性物质含量的削减效果；能降低土壤氧化稳定系数，提高土壤易氧化有机质含量，促进有机质矿化分解。单一垄作或垄作覆膜均能改善冷浸田土壤性质，提高冷浸田水稻产量，垄作覆膜的效果优于单一垄作。

关键词: 茄子, 茄子, 褐纹病病原菌, 抗病育种

Abstract: The study aims to evaluate the improvement effects of ridge culture and ridge culture with plastic film mulching, thus to provide scientific basis for soil fertility improvement in cold waterlogged paddy fields. Location experiment was conducted to study the effects of ridge culture and ridge culture with plastic film mulching on soil temperature, soil water stable aggregate content, reducing substances, organic matter oxidation stability coefficient and rice yield. Compared with the conventional tillage treatment, the treatments of ridge culture and ridge culture with plastic film mulching could both improve the rice yield, and the average yield of 3 years increased by 4.9%-16.8%. Ridge culture with plastic film mulching was more effective in improving rice yield, could improve soil temperature in early period of rice growth, the temperature-increasing effect of ridge culture with plastic film mulching was better than single ridge culture. The ridge culture with plastic film mulching could improve ＞0.25 mm soil water stable aggregate content, the treatment of single ridge culture improved ＞1 mm soil water stable aggregate content significantly, while the treatment of ridge culture with plastic film mulching improved 0.5-1 mm soil water stable aggregate content significantly. Single ridge culture could decrease the contents of reducing substances, field water management and rice growth period affected the reduction effect of ridge culture with plastic film mulching on the contents of reducing substances. Therefore, single ridge culture and ridge culture with plastic film mulching could reduce organic matter oxidation stability coefficient, increase the content of readily oxidized organic matter, and enhance organic matter mineralization. They both could improve soil properties and rice yield, and the improvement effects of ridge culture with plastic film mulching was better than single ridge culture.