The effect of municipal sewage sludge on the quality of soil and crops

Suad Jaffar Abdul Khaliq, Ahmed Al-Busaidi, Mushtaque Ahmed, Malik Al-Wardy, Hesham Agrama, B. S. Choudri

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Purpose: To examine the effects of the application of composted sewage sludge fertilizer (commercially sold as Kala compost) and inorganic (NPK) fertilizers on soil quality and on two crops (radish and beans) irrigated using groundwater and sewage treated wastewater (TWW) for irrigation by measuring heavy metals in the soil and plants and other parameters such as crops yield, TOC in soil, chlorophyll index and total nitrogen. Methods: The field experiments were conducted in an open area in Agricultural Experimental Study at Sultan Qaboos University campus, Oman. In this research, “green beans and white radish” were examined under the application of Kala and NPK fertilizers. The experimental design was a randomized complete block with four replicates. Results: The results showed that the yield, TOC and chlorophyll contents of green beans and white radish increased when soil was amended with Kala compost compared to NPK. Chemical analysis of soil and the two crops did not show any risk of heavy metal accumulation. Conclusions: Considering that the experiment was a short duration one, there is a need for more continuous long-term experiments (at least 5 years) that will improve the understanding on the effects of composted sewage sludge on soil fertility and crop yield to contribute to the development of sustainable agricultural practices in an arid environment of Oman.

Original languageEnglish
Pages (from-to)289-299
Number of pages11
JournalInternational Journal of Recycling of Organic Waste in Agriculture
Volume6
Issue number4
DOIs
Publication statusPublished - Dec 1 2017

Fingerprint

crop quality
sewage sludge
Sewage
soil quality
Soil
radishes
crop
NPK fertilizers
Oman
green beans
Raphanus
crop yield
compost
composts
soil
Fertilizers
chlorophyll
heavy metals
fertilizer
heavy metal

Keywords

  • Green beans
  • Kala compost
  • Oman
  • Sewage sludge
  • Soil quality
  • White radish

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Waste Management and Disposal

Cite this

The effect of municipal sewage sludge on the quality of soil and crops. / Abdul Khaliq, Suad Jaffar; Al-Busaidi, Ahmed; Ahmed, Mushtaque; Al-Wardy, Malik; Agrama, Hesham; Choudri, B. S.

In: International Journal of Recycling of Organic Waste in Agriculture, Vol. 6, No. 4, 01.12.2017, p. 289-299.

Research output: Contribution to journalArticle

@article{67e7bcc1ec724f158ae408b0a22b975c,
title = "The effect of municipal sewage sludge on the quality of soil and crops",
abstract = "Purpose: To examine the effects of the application of composted sewage sludge fertilizer (commercially sold as Kala compost) and inorganic (NPK) fertilizers on soil quality and on two crops (radish and beans) irrigated using groundwater and sewage treated wastewater (TWW) for irrigation by measuring heavy metals in the soil and plants and other parameters such as crops yield, TOC in soil, chlorophyll index and total nitrogen. Methods: The field experiments were conducted in an open area in Agricultural Experimental Study at Sultan Qaboos University campus, Oman. In this research, “green beans and white radish” were examined under the application of Kala and NPK fertilizers. The experimental design was a randomized complete block with four replicates. Results: The results showed that the yield, TOC and chlorophyll contents of green beans and white radish increased when soil was amended with Kala compost compared to NPK. Chemical analysis of soil and the two crops did not show any risk of heavy metal accumulation. Conclusions: Considering that the experiment was a short duration one, there is a need for more continuous long-term experiments (at least 5 years) that will improve the understanding on the effects of composted sewage sludge on soil fertility and crop yield to contribute to the development of sustainable agricultural practices in an arid environment of Oman.",
keywords = "Green beans, Kala compost, Oman, Sewage sludge, Soil quality, White radish",
author = "{Abdul Khaliq}, {Suad Jaffar} and Ahmed Al-Busaidi and Mushtaque Ahmed and Malik Al-Wardy and Hesham Agrama and Choudri, {B. S.}",
year = "2017",
month = "12",
day = "1",
doi = "10.1007/s40093-017-0176-4",
language = "English",
volume = "6",
pages = "289--299",
journal = "International Journal of Recycling of Organic Waste in Agriculture",
issn = "2195-3228",
publisher = "Springer Science + Business Media",
number = "4",

}

TY - JOUR

T1 - The effect of municipal sewage sludge on the quality of soil and crops

AU - Abdul Khaliq, Suad Jaffar

AU - Al-Busaidi, Ahmed

AU - Ahmed, Mushtaque

AU - Al-Wardy, Malik

AU - Agrama, Hesham

AU - Choudri, B. S.

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Purpose: To examine the effects of the application of composted sewage sludge fertilizer (commercially sold as Kala compost) and inorganic (NPK) fertilizers on soil quality and on two crops (radish and beans) irrigated using groundwater and sewage treated wastewater (TWW) for irrigation by measuring heavy metals in the soil and plants and other parameters such as crops yield, TOC in soil, chlorophyll index and total nitrogen. Methods: The field experiments were conducted in an open area in Agricultural Experimental Study at Sultan Qaboos University campus, Oman. In this research, “green beans and white radish” were examined under the application of Kala and NPK fertilizers. The experimental design was a randomized complete block with four replicates. Results: The results showed that the yield, TOC and chlorophyll contents of green beans and white radish increased when soil was amended with Kala compost compared to NPK. Chemical analysis of soil and the two crops did not show any risk of heavy metal accumulation. Conclusions: Considering that the experiment was a short duration one, there is a need for more continuous long-term experiments (at least 5 years) that will improve the understanding on the effects of composted sewage sludge on soil fertility and crop yield to contribute to the development of sustainable agricultural practices in an arid environment of Oman.

AB - Purpose: To examine the effects of the application of composted sewage sludge fertilizer (commercially sold as Kala compost) and inorganic (NPK) fertilizers on soil quality and on two crops (radish and beans) irrigated using groundwater and sewage treated wastewater (TWW) for irrigation by measuring heavy metals in the soil and plants and other parameters such as crops yield, TOC in soil, chlorophyll index and total nitrogen. Methods: The field experiments were conducted in an open area in Agricultural Experimental Study at Sultan Qaboos University campus, Oman. In this research, “green beans and white radish” were examined under the application of Kala and NPK fertilizers. The experimental design was a randomized complete block with four replicates. Results: The results showed that the yield, TOC and chlorophyll contents of green beans and white radish increased when soil was amended with Kala compost compared to NPK. Chemical analysis of soil and the two crops did not show any risk of heavy metal accumulation. Conclusions: Considering that the experiment was a short duration one, there is a need for more continuous long-term experiments (at least 5 years) that will improve the understanding on the effects of composted sewage sludge on soil fertility and crop yield to contribute to the development of sustainable agricultural practices in an arid environment of Oman.

KW - Green beans

KW - Kala compost

KW - Oman

KW - Sewage sludge

KW - Soil quality

KW - White radish

UR - http://www.scopus.com/inward/record.url?scp=85036608767&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85036608767&partnerID=8YFLogxK

U2 - 10.1007/s40093-017-0176-4

DO - 10.1007/s40093-017-0176-4

M3 - Article

VL - 6

SP - 289

EP - 299

JO - International Journal of Recycling of Organic Waste in Agriculture

JF - International Journal of Recycling of Organic Waste in Agriculture

SN - 2195-3228

IS - 4

ER -