What's New
Animations:

Phosphorus in Surface Waters


This animation demonstrates the four forms that phosphorus (P) can take in surface water, and how the equilibrium between the forms can be upset and then rebalanced.

View | More
Lessons:

Transpiration - Water Movement through Plants

This lesson and its animation follows the journey of water through a plant from its uptake by roots to its evaporation from the leaf surface. How this journey is altered by plant characteristics such

View | More
Plant and Soil Sciences > Soil Science > Lessons List
List of Lessons: Click on "View" to start using the lesson
 
Soils - Part 4: Soil pH (Beginner Level)

Soil pH is one of the most important chemical characteristics of the soil. For example, soil pH can affect availability of plant nutrients. In addition, the soil pH can affect the performance of preemergence herbicides, activity of microorganisms, the need for lime, soil bacteria activity, the best crop to be grown, and other characteristics.

[This lesson, as well as the other nine lessons in the Soils series, is taken from the "Soils Home Study Course," published in 1999 by the University of Nebraska Cooperative Extension.]

View    Or    Print