Nitrogen fertilizer rate not timing determines no‐till corn yield following cereal rye cover crop in northeastern United States

Abstract There is relatively low adoption of winter cover crops across the United States, despite the many ecosystem service benefits they provide, and there has been much debate about corn yield penalties following cereal cover crops such as cereal rye ( Secale cereale L.). This 12 site‐year, coordinated study across a latitudinal gradient in the northeastern United States sought to determine the interactions between cereal rye biomass and fertilizer nitrogen (N) rate and timing on no‐till corn ( Zea mays L.) yield. Total N rates, not the timing of N fertilization, significantly affected corn yields, and higher cereal rye biomass slightly increased corn yields once sufficient N was added. We conclude that if total fertilizer N rates are sufficient, the split between starter N application at planting and sidedress N fertilization does not affect yield in no‐till corn across a range of cereal rye cover crop biomass levels.

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Publication Details

Journal
Agricultural & Environmental Letters
Published
2025-11-20
DOI
https://doi.org/10.1002/ael2.70041
Primary Topic
Wheat and Barley Genetics and Pathology
Type
article
Field-Weighted Citation Impact
0.00

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article

Nitrogen fertilizer rate not timing determines no‐till corn yield following cereal rye cover crop in northeastern United States

Jarrod O. Miller, Masoud Hashemi, John T. Spargo, Katherine L. Tully et al.
Agricultural & Environmental Letters
Wheat and Barley Genetics and Pathology
article

Nitrogen fertilizer rate not timing determines no‐till corn yield following cereal rye cover crop in northeastern United States

Jarrod O. Miller, Masoud Hashemi, John T. Spargo, Katherine L. Tully, Neil Richards, Resham Thapa, Steven Brian Mirsky, Quirine M. Ketterings, Alexandra Huddell, Mark J. VanGessel, Charles M. White, Brian W. Davis, Greg Roth
article en

Abstract

Abstract There is relatively low adoption of winter cover crops across the United States, despite the many ecosystem service benefits they provide, and there has been much debate about corn yield penalties following cereal cover crops such as cereal rye ( Secale cereale L.). This 12 site‐year, coordinated study across a latitudinal gradient in the northeastern United States sought to determine the interactions between cereal rye biomass and fertilizer nitrogen (N) rate and timing on no‐till corn ( Zea mays L.) yield. Total N rates, not the timing of N fertilization, significantly affected corn yields, and higher cereal rye biomass slightly increased corn yields once sufficient N was added. We conclude that if total fertilizer N rates are sufficient, the split between starter N application at planting and sidedress N fertilization does not affect yield in no‐till corn across a range of cereal rye cover crop biomass levels.

Agricultural & Environmental LettersVol. 10(2)
Pennsylvania State University (US), Agricultural Research Service (US), Cornell University (US), University of Massachusetts Amherst (US), Beltsville Agricultural Research Center (US), University of Maryland, College Park (US), Tennessee State University (US), University of Delaware (US)
U.S. Department of Agriculture
Openalex Percentile: Top 74%
Wheat and Barley Genetics and Pathology
DOIOpen Access PDFOpenAlex
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