The Trade-Off between Yield and Nitrogen Pollution under Excessive Rainfall: Evidence from On-Farm Field Experiments in Iowa

Eseul Choi, Guilherme DePaula, Peter Kyveryga and Suzanne Fey

Land Economics, 2025, vol. 101, issue 2

Abstract: Climate change is expected to intensify rainfall, increasing the likelihood of nitrogen leaching in agriculture. This study incorporates the effects of excessive rainfall on corn yield and water pollution into a simple economic model for managing nitrogen. We empirically test this model using data from on-farm experiments conducted in Iowa. Our findings indicate that both optimal nitrogen application rates and environmental damage increase with excessive rainfall. As the marginal product of nitrogen increases under excessive rainfall, the cost of controlling nitrogen pollution escalates. However, our study highlights resilient management practices, such as split nitrogen application with sidedressing.

JEL-codes: Q52 Q53 (search for similar items in EconPapers)
Date: 2025
Note: DOI: https://doi.org/10.3368/le.101.2.022024-0015R
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Persistent link: https://EconPapers.repec.org/RePEc:uwp:landec:v101:y:2025:i:2:p:230-261

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