湖北农业科学 ›› 2020, Vol. 59 ›› Issue (4): 59-62.doi: 10.14088/j.cnki.issn0439-8114.2020.04.012

• 资源·环境 • 上一篇    下一篇

盛夏季节短期淹水栽培蕹菜对设施盐渍化土壤的影响

潘瑞瑞, 钱佳宇, 江解增, 张昊, 张永仙   

  1. 扬州大学水生蔬菜研究室,江苏 扬州 225009
  • 收稿日期:2019-05-09 出版日期:2020-02-25 发布日期:2020-05-13
  • 通讯作者: 江解增,男,江苏无锡人,教授,博士生导师,主要从事水生蔬菜栽培生理的研究,(电子信箱)jzjiang@yzu.edu.cn。
  • 作者简介:潘瑞瑞(1988-),女,安徽淮南人,硕士,主要从事水旱轮作等研究工作,(电话)18362829225(电子信箱)919887899@qq.com。
  • 基金资助:
    江苏省科技攻关项目(BE2017380);江苏现代农业(蔬菜)产业技术体系项目(JATS[2018]309);2018年农业技术试验示范与服务支持项目(091821301064072010)

Effects of short-term submerged cultivation of Ipomoea aquatica Forsk on salinized soil in midsummer

PAN Rui-rui, QIAN Jia-yu, JIANG Jie-zeng, ZHANG Hao, ZHANG Yong-xian   

  1. Institute of Aquatic Vegetable Research,Yangzhou University,Yangzhou 225009,Jiangsu,China
  • Received:2019-05-09 Online:2020-02-25 Published:2020-05-13

摘要: 为了研究盛夏高温季节短期淹水栽培后断水降渍对土壤性质的影响,以蕹菜(Ipomoea aquatica Forsk)为试验材料,在盐渍化处理的封底栽培桶中开展为期40 d的淹水栽培试验,然后32 d断水降渍,探究其对0~40 cm各土层的EC值、土壤养分含量和土壤酶活性的影响。结果表明,盛夏高温季节短期淹水后断水降渍,结合种植速生性蕹菜,可明显降低盐渍化土壤表层盐分浓度并使0~40 cm各土层养分趋于均衡,认为通过短期淹水使盐分下渗,结合种植速生性水生蔬菜的吸收转移,可有效缓解因超量使用化肥而致的设施土壤盐渍化。

关键词: 盐渍化, 淹水栽培, 蕹菜(Ipomoea aquatica Forsk), 土壤养分

Abstract: In order to study the effects of short-term paddy and upland rotation on soil properties in midsummer high temperature season, taking Ipomoea aquatica Forsk as test material, a 40 d submerged cultivation test was carried out in the back-cover cultivation bucket of soil salinization treatment, and then 32 d of dry cultivation was used to explore its influence on the EC value, soil nutrient content and soil enzyme activity of 0~40 cm soil layer. The results showed that the water cut off after the short period of flooding in midsummer high temperature season, combined with the planting of fast-growing Ipomoea aquatica Forsk, it can obviously reduce the salinity of saline soil surface and equalize the nutrients in 0~40 cm soil layer. It is believed that the saline infiltration through short-term flooding, combined with the absorption and metastasis of fast-growing aquatic vegetables, it can effectively alleviate the soil salinization of the facilities caused by excessive use of chemical fertilizers.

Key words: salinization, submerged cultivation, Ipomoea aquatica Forsk, soil nutrients

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