Washington State University Extension

Irrigated Agriculture


Crop Residue Saves Water

Posted May 12, 2014

Besides protecting the soil surface, crop residue can reduce evaporation, saving water for use by your crops.

Evaporation from soil occurs in three stages:

Evap stages

Read more »

Concentrate Organic Matter at Surface to Improve Soils

Posted April 15, 2014

Researchers are finding, in the US and in many other countries, that concentrating soil organic matter in the top 2″ promotes several aspects of soil health including nutrient cycling, resistance to erosion, and water infiltration and storage. They find that maintaining a high proportion of organic matter at the soil surface, relative to deeper layers, is more important than the total level of organic matter in a soil. Read more »

Irrigated Agriculture, PO Box 37, Ephrata WA 98823, 509-754-2011,413, Contact Us
© 2017 Washington State University | Accessibility | Policies | Copyright | Log in