Document Type

Report

Publisher

Washington State University

Publication Date

1987

First Page

1

Last Page

48

Abstract

This publication estimates 1987 costs, returns, and soil loss information for selected crops grown under alternative tillage systems in the 19- to 24-inch rainfall area (eastern region) of Whitman County, Washington (see map below). Production costs, returns, and profitability measures are calculated for winter wheat under conventional, minimum, and no-tillage schemes. The same three performance measures are calculated for dry peas, lentils, spring barley, and summer fallow-rapeseed under conventional tillage. Relative soil losses are also estimated for alternative tillage practices and crop rotations. The specific crop rotations evaluated are: (1) dry peas (CT) - winter wheat (CT); (2) dry peas (CT) - winter wheat (MT); (3) dry peas (CT) - winter wheat (NT); (4) dry peas (CT) - winter wheat (CT) - spring barley (CT); (5) lentils (CT) - winter wheat (CT) - spring barley (CT); and (6) summer fallow - rapeseed (CT).1/

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