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ARS Home » Pacific West Area » Pendleton, Oregon » Columbia Plateau Conservation Research Center » Research » Publications at this Location » Publication #124885
Title: WATER MOVEMENT AND STORAGE IN A HILLSLOPE SOIL UNDER FOUR YEARS NO-TILL PRACTICE

Author
item CHEN, CHENGCI - OREGON STATE UNIVERSITY
item Williams, John

Submitted to: ASAE Annual International Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 8/29/2001
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The conventional tillage winter wheat-summer fallow cropping system, that predominates the Pacific Northwest Inland area, is considered responsible for much of the annual surface soil erosion. Researchers and growers are attempting to develop direct-seeding annual cropping systems to reduce soil erosion. A four-year no-till annual cereal experiment was conducted on a 18 to 25 % hillslope with Walla Walla silt loam (coarse- silty, mixed, superactive, mesic Typic Haploxeroll) near Pendleton, Oregon. Forty-six neutron probe access tubes were installed across the slope to monitor seasonal soil moisture changes. Surface runoff was measured using two flumes installed at the foothill. Over the four-year experiment period, the flumes recorded no surface runoff. Water movement and storage in soil profile, and crop yield and water use efficiency were analyzed.