Agricultural Resources Conservation Act of 1990

Agricultural Resources Conservation Act of 1990 - Establishes in the Department of Agriculture: (1) an Office of Environmental Quality; and (2) the Interagency Committee on Environmental Quality.

Amends the Consolidated Farm and Rural Development Act to: (1) revise the conservation easement loan cancellation method; and (2) include all assets in calculating the value of restructured farm loans.

Amends the Food Security Act of 1985 to revise: (1) the highly erodible land conservation program; and (2) the wetland conservation program, including continued program ineligibility and reinstatement compliance agreements, program exemptions, and the protection of wetlands in Federal assistance programs.

Amends the conservation reserve program (CRP) to: (1) extend CRP eligibility to specified non-highly erodible lands; (2) extend program authority; (3) extend highly erodible land reduction authority; (4) permit counties to exceed program acreage limits for conservation purposes; (5) increase eligible farm acreage; (6) set forth enrollment goals for environmentally sensitive lands, trees, and wildlife protection; (7) subject land that was formerly under a CRP contract to certain conservation provisions; and (8) exempt land ownership changes due to bankruptcy or foreclosure from the three-year ownership rule.

Amends the Agricultural Act of 1949, with regard to the 1991 through 1995 crops of wheat, feed grains, cotton, and rice to provide Federal cost-sharing assistance for wildlife habitat improvements on diverted or set-aside acreage.

Amends the Food Security Act of 1985 to: (1) extend multiyear set-aside authority; (2) direct the Secretary of Agriculture to establish advisory State Technical Committees to assist in implementing conservation provisions under title XII of such Act; and (3) direct the Secretary to establish an Agricultural Resources Conservation Program. Provides, under such Program, for: (1) a comprehensive agricultural resources planning option; (2) a wetlands preservation option; (3) a water quality improvement option; and (4) a wildlife habitat improvement option.

Directs the Secretary, during FY 1991 through 2000, to carry out a long-term conservation easement program to: (1) protect wetlands and other environmentally sensitive lands; and (2) ensure that CRP or Water Bank lands continue resource conservation and improvement.

Directs the Secretary to establish a national agriculture wetlands reserve.

Amends the Food Security Act of 1985 to establish: (1) a tree planting initiative, including maintenance and reforestation on forest lands and under the CRP; and (2) a natural resources loan program.

Amends the Soil Conservation and Domestic Allotment Act to extend the Great Plains Conservation Program.