日光温室土壤养分变化及次生盐渍化程度与种植年限的关系
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(1.西北农林科技大学园艺学院,陕西 杨凌 712100;2.泾阳县蔬菜技术推广站,陕西 泾阳 713700)

作者简介:

杨园媛(1992-),女,四川彭州人,硕士研究生,主要从事蔬菜栽培研究。E-mail:572421327@qq.com。通讯作者:张明科,E-mail:zhangmk1101@nwsuaf.edu.cn。

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基金项目:杨凌示范区农业科技示范推广基地项目 (JD20180101);杨凌示范区示范能力提升项目(2018-GG-25);国家大宗蔬菜产业技术体系 (CARS-23-G22);陕西省农业科技创新集成推广项目。


Relationship between soil nutrient change,secondary salinization degree and planting years in solar greenhouse
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(1.Northwest Agriculture and Forestry University,Yangling Shaanxi712100;2.Jingyang Vegetable TechniquePopularizationStation,Jingyang Shaanxi713700)

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    摘要:

    以泾阳县 7个镇的 1 038栋日光温室内的土壤为研究对象,进行了土壤养分含量、pH值及电导率测定,研究日光温室内的土壤理化性质变化与种植年限的关系,为明确土壤肥力、存在问题和科学施肥提供理论依据。结果表明,随着种植年限的延长,日光温室土壤有机质先增加后减少;碱解氮、有效磷平均含量在 16~20年期间达到最大;速效钾在各年限阶段平均值均大于 600 mg·kg -1;日光温室土壤 EC值大于 500 μS·cm -1,表明土壤次生盐渍化趋势明显;土壤 pH值均大于 7.0,为碱性土。综上所述,该地区日光温室普遍发生了不同程度的土壤次生盐渍化现象,但与种植年限关系不明显。

    Abstract:

    Taking 1 038 soil samples of solar greenhouse in 7 towns of Jingyang county as materials,the contents of soilnutrient,pH and EC value weremeasured,and the relationship between the changes of soilphysical,chemical properties and soil planting years in the solar greenhouse was studied to clarify the soil fertility of greenhouse and the problems ofproduction,and provide a theoretical basis for scientific fertilization. The results showedthat,along with the soil plantingyears in thegreenhouse,the contents of soil organic matter increased first and thendecreased;the average content of alkali nitrogen and available phosphorus reached the maximum during the period of 16~20years;the average value of available potassium in each period was more than 600 mg·kg-1. The mean value of soil EC was more than 500 μS·cm-1,indicatinga trend of soil secondarysalinization;all the soil pH values were greater than7.0,which meant they belong to alkalinesoil. In summary,different degrees of soil secondary salinization had occurred in solar greenhouses in this region,but the relationship between soil secondary salinization and soil planting years of greenhouse was not obvious.

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杨园媛,贾圣青,贺晓燕,刘楠,张万,任苗,张明科.日光温室土壤养分变化及次生盐渍化程度与种植年限的关系[J].中国土壤与肥料,2020,(6):83-88.

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  • 收稿日期:2019-10-12
  • 最后修改日期:
  • 录用日期:2019-11-09
  • 在线发布日期: 2021-01-21