Soil Science

Introduction

Although organic matter is generally a minor component of soils, it exerts a strong effect on soil properties.

  • It is an important reservoir of the plant nutrients N, P, and S and contributes to cation exchange capacity.
  • It is also a part of the nutrient cycle of soil organisms, both soil macrofauna such as earthworms and microorganisms such as fungi and bacteria.
  • It assists in maintaining stable soil structure, which in turn helps the transmission of air and water through the soil as well as the storage of plant available water.

Management of soil organic matter is an important issue in the sustainability of agricultural systems.

To find out more about soil organic matter and the C and N cycles, click the sidebar buttons.

 

This content is still being developed, and you may find bugs, spelling mistakes, or other issues. Any feedback can be directed to your unit coordinator, and is greatly appreciated.