Effects of Irrigation Mode on Composition and Ratios of Soil Exchangeable Base in Greenhouse

FAN Qingfeng; ZHANG Yulong; ZHANG Yuling; YU Na

doi:10.13870/j.cnki.stbcxb.2018.01.041

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Effects of Irrigation Mode on Composition and Ratios of Soil Exchangeable Base in Greenhouse

更新时间：2025-03-12

- Effects of Irrigation Mode on Composition and Ratios of Soil Exchangeable Base in Greenhouse
- Vol. 32, Issue 1, Pages: 264-268(2018)
- 作者机构：
  
  沈阳农业大学土地与环境学院，农业部东北耕地保育重点实验室，土壤肥料资源高效利用国家工程实验室,沈阳,110866
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2018.01.041
  CLC： S151.9
- Published：2018
- 稿件说明：
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FAN Qingfeng, ZHANG Yulong, ZHANG Yuling, et al. Effects of Irrigation Mode on Composition and Ratios of Soil Exchangeable Base in Greenhouse[J]. 2018, 32(1): 264-268.
DOI：

FAN Qingfeng, ZHANG Yulong, ZHANG Yuling, et al. Effects of Irrigation Mode on Composition and Ratios of Soil Exchangeable Base in Greenhouse[J]. 2018, 32(1): 264-268. DOI： 10.13870/j.cnki.stbcxb.2018.01.041.

摘要

为全面评价不同灌溉方式下设施土壤养分供应状况，以设施土壤为研究对象，采用田间试验与室内分析相结合的方法，对连年采用沟灌、滴灌和渗灌灌溉下的设施土壤有机质含量、阳离子交换量、盐基离子组成及其比列进行了研究。结果表明：3种灌溉方式土壤有机质、阳离子交换量及盐基离子含量表层较高，不同灌溉方式间表层土壤有机质含量及阳离子交换量表现为渗灌高于沟灌，沟灌高于滴灌，土壤交换性盐基离子含量总体以渗灌处理最高。各灌溉方式0—60 cm土层土壤盐基离子饱和度大小顺序均为Ca2+>Mg2+>K+>Na+，Ca2+、Mg2+饱和度随土层深度的增加而增大，K+、Na+饱和度总体呈随土层加深先降低后上升的变化趋势。Ca2+、Mg2+饱和度在0—30 cm土层滴灌最高，30—60 cm土层渗灌最高。K+饱和度总体以渗灌为高，沟灌居中，滴灌最低。土壤Ca/K、Mg/K值总体以滴灌最高，沟灌次之、渗灌较小。从不同灌溉方式对设施土壤交换性盐基组成及比例的影响来看，采用滴灌方法不仅能省水，有效供应养分，更有利于保持养分之间的平衡，是一种较为合适的灌溉方法。

Abstract

In order to fully evaluate nutrient availability of greenhouse soils under different irrigation treatments

field experiments were conducted to investigate the effects of drip irrigation

subsurface irrigation and furrow irrigation on the contents of organic matter

CEC

the composition and ratios of soil exchangeable bases in greenhouse. The results showed that the soil organic matter

CEC and exchangeable base ions were all higher in the surface soil layer under three irrigation treatments. The contents of soil organic matter and CEC of soils followed the order of subsurface irrigation > furrow irrigation > drip irrigation

the contents of exchangeable base ions were the highest under subsurface irrigation. Base ions saturations in 0-60 cm soil layer under three irrigation treatments all followed the order of Ca2+ > Mg2+ > K+ > Na+

saturations of Ca2+ and Mg2+ both increased with the increasing of soil depth. While the saturations of K+ and Na+ decreased first and then increased with the increasing of soil depth. Saturations of Ca2+ and Mg2+ in the 0 – 30 cm soil layer were higher under drip irrigation

while they in the 30 – 60 cm soil layer were higher under subsurface irrigation. Saturation of K+ was the highest under subsurface irrigation and the lowest under drip irrigation. The ratios of Ca/K and Mg/K were the highest under drip irrigation and the lowest under subsurface irrigation. According to the influence of different irrigation treatments on the composition and proportion of exchangeable bases in greenhouse soil

drip irrigation could not only save water and effectively provide nutrients

but also benefited to maintain a balance between nutrients

which was a more appropriate irrigation method in this study.

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