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172394

EFFECT OF LATERALS DRAIN SPACING AND GROUNDWATER DEPTH ON SOIL WATER RELATIONS AND RICE PRODUCTIVITY IN THE NORTH NILE DELTA

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Last updated: 26 Dec 2024

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Abstract

A field experiment was conducted in alluvial clay soil located at the north Nile Delta (Motobus District, Kafr El-Shiekh Governorate, Egypt). The soil was cultivated with rice crop (Oryza sativa L.) during two summer seasons 2018 and 2019. The impact of lateral drain spacing at 20m and 40m between laterals (main plots) with controlled drainage (CD) at 0.4, 0.8m depth and uncontrolled drainage at 1.2m below soil surface (sub plots) was studied to evaluate soil-water properties, Nitrate losses, water saving, rice productivity and economic return under rice crop cultivation. Results showed that the relative groundwater depth values (RGWD) are inversely proportional to the drain spacing treatments. The highest values of drainable porosity (0.145 and 0.141%) were achieved in the plots subjected to 20 m drain spacing with uncontrolled treatment, while the lowest values ( 0.1 and 0.101%)  were obtained at 40m drain spacing with 0.4m controlled drainage in both seasons, respectively. It's clear that narrow drain spacing of 20m and water table depth at 0.4m was more efficient than the wider drain spacing at 40m in reducing values of soil salinity, SAR and bulk density compared with its values before installation of drainage system. On the other, hand it gave the highest values for water saving, nitrate saving, productivity of irrigation water, rice yields, net return, net income from water unit, economic efficiency compared to wider drain spacing (40 m) with 1.2 m ground water depth. The controlled drainage reduced drainage outflow compared to conventional drainage. It can be concluded that the treatment of controlled drainage gave more profit than the uncontrolled one.

DOI

10.21608/mjss.2020.172394

Keywords

Nitrate losses, drainable porosity, drain spacing, Ground water depth, discharge rate, Rice crop, economic return

Authors

First Name

M. Kh.

Last Name

El-Ghannam

MiddleName

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Affiliation

Soils, Water and Environment Research Institute, ARC, Giza, Egypt

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Orcid

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First Name

R. M.

Last Name

Khalifa

MiddleName

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Affiliation

Soils Dep, Faculty of Agriculture, Damietta, Univ, Egypt

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City

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Orcid

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First Name

B. B.

Last Name

Mikhael

MiddleName

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Affiliation

Rice Research and Training Center, Field Crop Res Institute, ARC, Giza, Egypt

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Volume

5

Article Issue

9

Related Issue

25074

Issue Date

2020-12-01

Receive Date

2021-05-26

Publish Date

2020-12-01

Page Start

217

Page End

234

Print ISSN

2357-0822

Online ISSN

2735-3524

Article File

MJSS_Volume 5_Issue 9_Pages 217-234.pdf

PDF . 377.1kB

Link

https://mjss.journals.ekb.eg/article_172394.html

Detail API

https://mjss.journals.ekb.eg/service?article_code=172394

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3

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original papers

Type Code

1,403

Publication Type

Journal

Publication Title

Menoufia Journal of Soil Science

Publication Link

https://mjss.journals.ekb.eg/

MainTitle

EFFECT OF LATERALS DRAIN SPACING AND GROUNDWATER DEPTH ON SOIL WATER RELATIONS AND RICE PRODUCTIVITY IN THE NORTH NILE DELTA

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Article

Created At

23 Jan 2023