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36940

Influence of Hydrogel Type and Concentration, and Water Application Rate on some Hydraulic Properties of a Sandy Soil

Article

Last updated: 01 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Soil science

Abstract

Water percolation and storage in a model sandy soil amended with four superabsorbent polymers (SAPs) was investigated using drip irrigation with two discharge rates. Superabsorbent polymers (Watersorb, Ag-SAP, Tera-Gel and Water-crystals) were mixed with the soil at three concentrations [0.2% or 0.4% (W/W) and control (0.0%)]. All soil columns received a fixed amount of water at two discharges i.e., 2.0 or 4.0 L h-1. The percentages of percolated and retained water (relative to total water applied), gravimetric soil water content (G-wc) and bulk density (BD) were determined. All SAPs, at any concentration and water application rate, reduced the percentage of percolated water (PPW) and BD and increased the total soil porosity (TP). The reduction of PPW resulted in increases in soil water storage that were proptional to SAPs concentration. Under low water application rate, SAPs were more efficient as compared with high water application rate, because SAPs had enough time to reach their maximum water absorption capacity (WAC). At a SAPs concentration of 0.4% and low water application rate, Watersorb, Tera-gel and Ag-sap were acting equally and were best performing, as the G-wc increased by 2.6 folds compared to control. However, at the high water application rate, SAPs with higher water absorption rate “WAR" (Watersorb) worked best, as its particles swell faster. It can be concluded that, WAC of SAPs is important when irrigation water application rate is low and at high water application rate, WAR would be the most important property allowing SAPs to reach complete water absorption during short irrigation duration.
 

DOI

10.21608/asejaiqjsae.2019.36940

Keywords

water application rate, percolation, water absorption capacity, soil water storage, superabsorbent polymers (SAPs)

Authors

First Name

Ahmed

Last Name

ABDALLAH

MiddleName

-

Affiliation

Department of Natural Resources and Agricultural Engineering, Faculty of Agriculture, Damanhour University, Damanhour, P.O. Box 59, Egypt

Email

ph7@damanhour.edu.eg

City

DAMANHOUR

Orcid

-

Volume

40

Article Issue

APRIL- JUNE

Related Issue

5258

Issue Date

2019-04-01

Receive Date

2019-05-22

Publish Date

2019-07-30

Page Start

347

Page End

360

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 40_Issue APRIL- JUNE_Pages 347-360.pdf

PDF . 565.4kB

Link

https://asejaiqjsae.journals.ekb.eg/article_36940.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=36940

Order

13

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Influence of Hydrogel Type and Concentration, and Water Application Rate on some Hydraulic Properties of a Sandy Soil

Details

Type

Article

Created At

22 Jan 2023