THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQ

Twelve soil samples of different textures and carbonate minerals were selected from the great soil group (Calciortheds) in northern Iraq. In order to describe the effect of the concept of mono cations ratios (potassium and sodium) responsible for the stability of soil aggregates CROSS as an alternat...

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Main Authors: Saja Albarzanjy, Mohamed Al-Obaidi, Hazim Ahmed
Format: Article
Language:Arabic
Published: College of Agriculture 2024-12-01
Series:Mesopotamia Journal of Agriculture
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Online Access:https://magrj.uomosul.edu.iq/article_185749_fe244200cd8aaa95af4caa013c8f90d1.pdf
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author Saja Albarzanjy
Mohamed Al-Obaidi
Hazim Ahmed
author_facet Saja Albarzanjy
Mohamed Al-Obaidi
Hazim Ahmed
author_sort Saja Albarzanjy
collection DOAJ
description Twelve soil samples of different textures and carbonate minerals were selected from the great soil group (Calciortheds) in northern Iraq. In order to describe the effect of the concept of mono cations ratios (potassium and sodium) responsible for the stability of soil aggregates CROSS as an alternative to the concept of sodium adsorption ratio, on the water conductivity and the average weighted diameter of soil aggregates, an electrolyte solution consisting of mono cations (potassium and sodium) and divalent cations (calcium and magnesium) with potassium ionic dominance over the rest of the other ionic species was allowed at a concentration of (4.26) mmol.L1/2 to undisturbed soil columns with a diameter of 4cm and a length of 6 cm using the miscible displacement technique under the influence of a constant flow solution pressure of 4cm. For ten successive pore volumes for approximately 16 weeks. The flow of electrolyte solution through the columns led to increasing additions of mono cations (K+) that negatively affected the deterioration of different soil groups by sliding their colloids from the original aggregate, causing dispersion of clay colloids dominated by montmorillonite mineral with high ability to swell and disperse clay particles and sliding organic materials, which led to a decrease in the weighted diameter index from 6.18 to 5.43 mm, which led to the deterioration of the soil and a decrease in its water conductivity for all soils from 3.39 to 1.61 cm.h-1. we suggest that the effect of potassium should be taken into account in evaluating soil structure.
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spelling doaj-art-5b5a3243de3040fd9a41633469db478d2025-01-03T20:09:38ZaraCollege of AgricultureMesopotamia Journal of Agriculture1815-316X2224-97962024-12-0152412313410.33899/mja.2024.151713.1496185749THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQSaja Albarzanjy0Mohamed Al-Obaidi1Hazim Ahmed2Soil Science and Water Recourses Department, College of Agriculture and Forestry, University of Mosul, Mosul, IraqSoil Science and Water Recourses Department, College of Agriculture and Forestry, University of Mosul, Mosul, IraqSoil Science and Water Recourses Department, College of Agriculture and Forestry, University of Mosul, Mosul, IraqTwelve soil samples of different textures and carbonate minerals were selected from the great soil group (Calciortheds) in northern Iraq. In order to describe the effect of the concept of mono cations ratios (potassium and sodium) responsible for the stability of soil aggregates CROSS as an alternative to the concept of sodium adsorption ratio, on the water conductivity and the average weighted diameter of soil aggregates, an electrolyte solution consisting of mono cations (potassium and sodium) and divalent cations (calcium and magnesium) with potassium ionic dominance over the rest of the other ionic species was allowed at a concentration of (4.26) mmol.L1/2 to undisturbed soil columns with a diameter of 4cm and a length of 6 cm using the miscible displacement technique under the influence of a constant flow solution pressure of 4cm. For ten successive pore volumes for approximately 16 weeks. The flow of electrolyte solution through the columns led to increasing additions of mono cations (K+) that negatively affected the deterioration of different soil groups by sliding their colloids from the original aggregate, causing dispersion of clay colloids dominated by montmorillonite mineral with high ability to swell and disperse clay particles and sliding organic materials, which led to a decrease in the weighted diameter index from 6.18 to 5.43 mm, which led to the deterioration of the soil and a decrease in its water conductivity for all soils from 3.39 to 1.61 cm.h-1. we suggest that the effect of potassium should be taken into account in evaluating soil structure.https://magrj.uomosul.edu.iq/article_185749_fe244200cd8aaa95af4caa013c8f90d1.pdfpotassiumdispersionwater conductivitysoil degradationmean weighted diameter
spellingShingle Saja Albarzanjy
Mohamed Al-Obaidi
Hazim Ahmed
THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQ
Mesopotamia Journal of Agriculture
potassium
dispersion
water conductivity
soil degradation
mean weighted diameter
title THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQ
title_full THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQ
title_fullStr THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQ
title_full_unstemmed THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQ
title_short THE ROLE OF MONOVALENT IONS IN THE DETERIORATION OF SOME PHYSICAL PROPERTIES OF CALCAREOUS SOILS IN NORTHERN IRAQ
title_sort role of monovalent ions in the deterioration of some physical properties of calcareous soils in northern iraq
topic potassium
dispersion
water conductivity
soil degradation
mean weighted diameter
url https://magrj.uomosul.edu.iq/article_185749_fe244200cd8aaa95af4caa013c8f90d1.pdf
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