|Table of Contents|

Soil Nutrient in Secondary Salinization and Soluble Salt Vertical Distribution(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年23
Page:
171-174
Research Field:
Publishing date:

Info

Title:
Soil Nutrient in Secondary Salinization and Soluble Salt Vertical Distribution
Author(s):
YANG Jing1LU Yefeng1SUN Kaiwen12ZHENG Lei3QIAN Xiaoqing1SHENG Haijun14
(1.College of Environmental Science and Engineering,Yangzhou University,Yangzhou,Jiangsu 225127;2.Jiangsu Huanghai Farm Huanghai Institute of Agricultural Sciences,Yancheng,Jiangsu 224600;3.Wuxi Yijiakang Institute of Vegetables,Wuxi,Jiangsu 214100;4.Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization,Nanjing,Jiangsu 210095)
Keywords:
secondary salinizationnutrientsoluble saltsvertical distribution
PACS:
-
DOI:
10.11937/bfyy.201623040
Abstract:
The problem of soil secondary salinization is getting worse,seriously threatening the development of agriculture.Greenhouse vegetables soil was used as test materials,field sampling was carried out,in combination with analytical methods,the content and composition of nutrient sand soluble salts was determined,as well as their vertical distribution characteristics in soils with secondary salinization.The results showed that the nutrient in secondary salinized soils mainly concentrated in the 0-10 cm surface layer.With the decrease of soil depth,the organic matter first increased and then decreased,while available N,P and K showed a tendency of decrease.Similar pattern was observed for soluble salts which decreased along soil depth,with the highest soluble salt content detected in surface layer(0-10 cm),followed by a significant decrease from 10 cm downwards.Ca2+ and NO3-were the major soluble salt ions in the surface layer,accounting for 59.71% of the total cations and 65.95% of the anions respectively.

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Last Update: 2017-01-19