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Nitrogen Fertilizer and Soil Organic Matter: What Does the Evidence Say?
Washington State University
12/05/2023
DOI:
https://doi.org/10.7273/000008431
Abstract
Does synthetic nitrogen fertilizer burn up soil organic matter? Whether you are focused on soil health, soil sequestration, or soil carbon credits, this is an important question. The persistent claim is that synthetic N fertilizer can “burn” soil carbon by supercharging the soil microbes. This claim mainly arises from a 2007 research article from researchers at the University of Illinois (Khan et al., 2007, see comments on this paper below) and has recently resurfaced in another article (Jesmin et al., 2021) and the resulting (flawed) media coverage. However, these studies are far from conclusive – so what does the broader scientific literature say? And what have we learned in the last few decades on the relationship between synthetic N and soil organic matter?
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Details
- Title
- Nitrogen Fertilizer and Soil Organic Matter: What Does the Evidence Say?
- Creators
- Jordan Wade (Author)Andrew McGuire (Author) - Washington State University, WSU Extension ANR
- Academic Unit
- WSU Extension
- Publisher
- Washington State University
- Identifiers
- 99901401502401842
- Language
- English
- Resource Type
- Website