Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Effects of clay and organic matter amendments on water and nutrient retention of sandy soils

Tools
- Tools
+ Tools

Ogunniyi, Jumoke Esther (2017) Effects of clay and organic matter amendments on water and nutrient retention of sandy soils. PhD thesis, University of Warwick.

[img]
Preview
PDF
WRAP_Theses_Ogunniyi_2017.pdf - Submitted Version - Requires a PDF viewer.

Download (26Mb) | Preview
Official URL: http://webcat.warwick.ac.uk/record=b3162948~S15

Request Changes to record.

Abstract

Sandy soils are one of the most widely distributed soils in the world. However, crop production on these soils can be problematic especially in terms of water and nutrient retention. In the face of climate change and a projected reduction in water availability, food production is likely to be particularly affected. The aim of this research is to examine if amending soils with clay and organic matter can improve their water and
nutrient retention.

The research approach employed laboratory column leaching experiments, rainfall simulation, Computed Tomography (CT) scanning and field trials to investigate the potential of two types of clay, Kaolin (K) and Bentonite (B), and peat (Pt), as well different combinations of clay and peat, to act as effective soil amendments. The influence of amendment materials was assessed by examining water retention, nutrient retention, soil organic carbon and changes in soil properties. Laboratory analysis was supported by field trials to examine the productivity of spring wheat.

The results showed that the amendment materials increased soil water retention and availability, reduced water infiltration, increased nutrient uptake, increased spring wheat growth and yield, and improved soil carbon storage compared to an unamended control.

The findings provide a further understanding of how the addition of clay and OM can affect ecological function of sandy soils and elucidate the mechanisms involved in controlling water retention and availability, as well as nutrient retention in the amended soils.

Item Type: Thesis (PhD)
Subjects: S Agriculture > S Agriculture (General)
Library of Congress Subject Headings (LCSH): Sandy soils, Soil amendments, Kaolin, Bentonite, Peat
Official Date: September 2017
Dates:
DateEvent
September 2017UNSPECIFIED
Institution: University of Warwick
Theses Department: School of Life Sciences
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Rickson, R. J. (R. Jane)
Extent: xix, 261 leaves : illustrations, charts
Language: eng

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us