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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (16): 100-105.doi: 10.11924/j.issn.1000-6850.2012-2214

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

大棚辣椒连作土壤养分和离子变化与酸化的关系

刘来 孙锦 郭世荣 黄保健 郭红伟 李恋卿   

  • 收稿日期:2012-06-14 修回日期:2012-07-20 出版日期:2013-06-05 发布日期:2013-06-05
  • 基金资助:
    江苏省农业科技自主创新资金

Relationship Between Changes of Nutrients, Ions and Soil Acidification in Different Continuous Cropping Years of Hot Pepper Greenhouse Soils

  • Received:2012-06-14 Revised:2012-07-20 Online:2013-06-05 Published:2013-06-05

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摘要： 为了研究江苏淮安地区塑料大棚辣椒连作土壤养分和离子含量变化与酸化的关系，选取不同连作年限的辣椒大棚土壤和相邻露地小麦-辣椒轮作田（对照），测定大棚辣椒不同连作土壤的pH、养分和离子含量，通过相关分析、主成分分析，研究大棚辣椒连作对土壤养分和离子含量的影响及其与连作土壤酸化的关系。结果表明，随着辣椒连作年限增加，土壤pH呈降低趋势，并且均低于对照(CK)；辣椒连作土壤养分和离子含量高于对照土壤，并且土壤有机质、全氮、全磷、有效钾、Cl-、SO42-、NO3-与pH显著相关(P<0.05)；主成分分析表明，连作土壤有机质、全氮、全磷、有效钾、Cl-、NO3-、SO42-影响土壤酸化水平。因此，大棚辣椒连作会引起土壤酸化，而土壤中有机质、全氮、全磷、有效钾和Cl-、SO42-、NO3-积累是引起辣椒连作土壤酸化的主要原因。

关键词: 外壳蛋白基因, 外壳蛋白基因

Abstract: To study the relationship between soil nutrients, ions and acidification of greenhouse pepper in Huai’an district of Jiangsu Province. Choosing the adjacent open field of wheat-pepper rotation as the reference, the pH, nutrient and ions in different continuous cropping years of pepper greenhouses soil were determined. Effect of continuous cropping years on soil nutrients and ions content, and the relationship between changes of nutrients, ions and soil acidification were studied through the correlation analysis, principal component analysis. Our results showed that with the cropping years increasing, soil pH was decreased and those values in continuous cropping years of pepper greenhouses soils were lower than those of the adjacent open field of wheat-pepper rotation. The contents of soil nutrients and ions in continuous cropping soil of hot pepper were higher than those of control, and the correlation of soil nutrients (organic matter, total N, total P, available K, Cl-, SO42-, NO3-) between pH was significant (P<0.05). Principal component analysis showed that the soil nutrients (organic matter, total N, total P, available K, Cl-, SO42- and NO3-) in continuous cropping soil could affect the acidification level of soil. Therefore, continuous cropping using pepper will cause soil acidification, the accumulation of soil nutrients might be the main reason of the acidification in pepper continuous soil.