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Presents a study which tested the hypothesis, that returning cultivated fields in southwestern Wyoming, to perennial grasses through the Conservation Reserve Program (CRP) would increase labile pools of soil organic matter (SOM) and small-scale heterogeneity of SOM. Methodology used to conduct study; How the potential effects of CRP on soils in dryland wheat-flow areas was addressed; What study's findings suggested.

Focuses on the effects of the legume, grass, and Conservation Reserve Program on soil organic matter recovery in southeastern Wyoming. Description of the site used in the study; Field sampling under legumes, under grasses and in plant interspaces; Enhancement of recovery of labile soil and plant nitrogen when the proportion of legume was high.