Nutrient management planning is seen as a means of improving efficiency and reducing environmental problems, however, these gains may not be realized if plans overstate fertilizer requirements. Using data from a survey of Maryland farmers, we find that nutrient management planning was adopted...

Nonpoint sources of water pollutants, in particular, nutrients like nitrogen and phosphorus, are increasingly a focus of US water pollution policy. In most cases, agriculture is the largest contributor of these pollutants, in part because, until recently, it has largely remained unregulated....

Policymakers are concerned about nitrogen and phosphorus export to water bodies. Exports may be reduced by paying farmers to adopt practices to reduce runoff or by paying performance incentives tied to estimated run-off reductions. We evaluate the cost-effectiveness of practice and performance...

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