Multimedia Gallery - Plant Available Water

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Plant Available Water

ID # 8

Plant Available Water
The smaller pore space in silts results in more water being held in these soils, therefore more water is available for plant growth.

STEM Standard addressed: ESS2A - Earth Materials and Systems

Appropriate Grade Level(s)
  • 6-8
  • 9-12
  • College-level
Materials are best used for
  • Classroom Lectures
  • Distance Education Classes
  • Extension Presentations
  • Website Information
General Course Areas
  • Introduction to Soil Science
A general graphical representation of the amount of water available for plant use (plant available water) is shown as the area between the field capacity line (water held in the soil after gravitational water has been removed) and the permanent wilting point line (water that cannot be extract by plant roots). The largest amount of plant available water occurs when the soil texture is in the loam to silty clay loam range. Adding organic matter will increase the amount of plant available water

Peer Review: Yes

Credit this item to: Know Soil Know Life, SSSA
Media Date: 2015-12-01
Provided By: Susan Chapman


  • * Know Soil Know Life

Submitted By: Ms. Jenna LaFave


  • Know Soil Know Life


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