Conservation tillage systems for annually cropped wheat in the Pacific Northwest

Robert E. Ramig; L G. Ekin

ABSTRACT:

A four-year study was conducted at two historically wheat-fallow locations in Oregon to compare yields of annually cropped wheat in no-till, disk, and chisel tillage systems with yields of wheat following conventionally chiseled and rodweeded fallow. Tillage method did not affect yields of annually cropped wheat. This permits development of a management strategy that reduces soil erosion risk and increases average annual production. Annually cropped wheat, including two crops of lower yielding spring wheat, yielded 60% and 70% of winter wheat after fallow at the two locations. On a land use basis, annually cropped wheat, including the spring wheat crops, produced 138% of winter wheat after fallow.

Footnotes

Robert E. Ramig is a soil scientist and L. G. Ekin is an agricultural technician, Columbia Plateau Conservation Research Center, Agricultural Research Service, U.S. Department of Agriculture, Pendleton, Oregon 97801. This is a contribution from ARS, USDA, and the Columbia Basin Agricultural Research Center, Pendleton, Oregon 97801. Oregon State University Agricultural Experiment Station Technical Paper No. 7845. Reference to company trade names is for the reader's information and does not imply approval or recommendation of a product by USDA to the exclusion of others that may be suitable.
Copyright 1987 by the Soil and Water Conservation Society

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