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Cited by 297

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Fertilizer Nitrogen: Contribution to Nitrate in Surface Water in a Corn Belt Watershed

Kohl, Daniel H., Shearer, Georgia B., Commoner, Barry·1971·Science

Abstract

Measurements of nitrate concentration and relative enrichment in nitrogen-15 were made on samples of the surface waters of a typical Illinois corn belt watershed and the effluent of the subterranean tiles that drain the cropped land in the region. From these measurements, we estimate that at the time of peak nitrate concentration in the spring of 1970 a minimum of 55 to 60 percent of the nitrogen found as nitrate in the surface waters of this watershed originated from fertilizer nitrogen.

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Metadata

Authors
Kohl, D. H., Shearer, G. B., & Commoner, B.
Venue
Science
Published
1971-12-24
Volume
174
Issue
4016
Pages
1331-1334
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2058139107
Cited by
297
References
0
FWCI
5.94
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Fertilizer Nitrogen: Contribution to Nitrate in Surface Water in a Corn Belt Watershed. https://app.cochat.ai/papers/10.1126/science.174.4016.1331
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Kohl, D. H., Shearer, G. B., & Commoner, B. (1971). Fertilizer Nitrogen: Contribution to Nitrate in Surface Water in a Corn Belt Watershed. Science. https://doi.org/10.1126/science.174.4016.1331

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.