Cropping diversity along the United States - Canada border of the Great Plains has not been dominated by either country. U.S. wheat policies impacted diversity in both countries through price and in the U.S. by acreage reduction programs. In the 1990s, cropping diversity increased in Canada and...

The Canadian prairies traditionally have been dominated by spring wheat production. Crop diversification is now being advocated to enhance farm-level risk management, ecological benefits, nutrient cycling, and pest and disease control, and to reduce the farm economy’s reliance on income...

Invasive weeds are a large problem on large tracts of rangeland in North America. Biological methods of control have been instituted, but many information gaps remain. An investment model approach is used to demonstrate some of the potentially key pieces of biological data that are required for...

Replaced with revised version of paper 08/02.

Previous research has defined aggregate pesticide expenditures as the control variable; however, virtually all managerial recommendations and environmental restrictions target specific pesticides, rates, and crops. A bioeconomic approach considering particular pesticides on specific pests and...

"A spatial model of intensive livestock production for a region in southern Alberta was used to evaluate the impact of economic factors and regulation on regional returns and optimal manure management. Under current conditions, profit maximizing application of manure met nitrogen requirements...