Using data from a survey of farm operators in two Virginia counties, the authors analyze farmers' soil conservation decisions. Results indicate that financial factors, including income and debt, are the most important influences on the sample farmers' use of conservation practices. Additional factors such as perception of erosion, education level, off-farm employment, and tenancy also influence conservation expenditures. Factors influencing conservation tillage acreage differ from those influencing expenditures for other conservation practices. In particular, age and race of the operator and on-farm erosion potential are significantly related to the use of conservation tillage but not other practices. These results are discussed in terms of their implications for conservation programs.

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Achieving sustainable agricultural systems will require transformative changes in markets, policies, and science.

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w ww ww w. .f fr ro on nt ti ie er rs si in ne ec co ol lo og gy y. .o or rg g REVIEWS REVIEWS REVIEWSGreen payments and the US Farm Bill: information and policy challenges S Sa an nd dr ra a S S B Ba at ti ie e Agriculture in the United States is heavily influenced by the Farm Bill and has considerable negative impacts on ecosystem functioning. Could the Farm Bill be redesigned to fund "green" payments that would encourage producers to provide beneficial ecological services? Such a change would be a complex undertaking, involving missing or uncertain information, heterogeneous systems, and challenging political and budgetary realities. Much of the information necessary for Farm Bill redesign is available, but is not being used; however, there remain critical gaps in our understanding of how to structure science-based, producer-relevant policy. One way to fill these information gaps is to fund cooperative pilot projects, based on environmental units of interest, such as watersheds. Nevertheless, political and budgetary constraints may mean that such information is more likely to inform policy and activities outside of the Farm Bill.