Plant & Soil Sciences eLibraryPRO
Loading
control panel control panel
 

Soils - Part 9: Fundamentals of Soil Testing

Rate Me

Developing Soil Tests

A single numerical value reported by a soil test has no meaning unless the information gathered can answer the following three questions:

1) Will a specific crop attain maximum growth and/or yield at that soil test level?
2) Will crop growth or yield be greater when the nutrient is added to the soil?
3) Can the amount of nutrient needed for the crop to attain better growth or yield be predicted?

A vast amount of laboratory, greenhouse, and field research is necessary to develop a useful soil test. Chemical combinations called extractants remove nutrients from the soil. The nutrient in the extractant is then analyzed. The general principles behind extractant development are explained in the next section.

Comments

Be the first to write a comment...

Control Panel cancel

Create activities for your moodle courses. Moodle Go to moodle
Select and group e-Library Lessons to create your own package... My Communities
Community Blogs Community Media

My Joined Communities

 
My Blogs - a journal of my thoughts... My Blogs
 
My Comments - my thoughts expressed as a feedback... My Comments
 
Classes that I am taking Registered Classes
Class Blogs Class Media
 
Check the scores of assesments that you have taken Taken Assessments
 
clear
Please confirm your selection.