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A cooperative research project by Washington State University and USDA Agricultural Research Service.

Infiltrometer
 
Infiltration in wheat
stubble
Infiltration in no-till fallow
 

An infiltrometer is a device used to measure the rate of water infiltration into soil. Tillage is an important factor that affects water infiltration into soil.

 
Infiltrometer in winter wheat
Infiltrometer in continuous annual no-till cropping
 
 
Taking measurements from four infiltrometer tests
Heavy wheat stubble inside the infiltrometer ring
 

Our infiltrometer has a single ring. The ring is driven into the soil and then water is supplied to achieve a constant head. Water is held at a constant depth through use of a water reservoir and a float valve inside the infiltrometer. Infiltration is determined by measuring the quantity of water that infiltrates into the soil during a two hour period and/or when infiltration reaches a steady state.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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