Campus Units

Economics

Document Type

Article

Publication Version

Published Version

Publication Date

2018

Journal or Book Title

Agricultural & Environmental Letters

Volume

3

First Page or Article ID Number

170041

DOI

10.2134/ael2017.11.0041

Abstract

Harvesting fertilized rye (Secale cereale L.) cover crop has been suggested as a method to increase producer revenue and biofuel feedstock production, but drainage N loss impacts are currently unknown. Using the tested Root Zone Water Quality Model (RZWQM) across several N rates, spring application of 120 kg N ha-1 prior to winter rye harvest reduced drainage N loss by 54% compared with no cover crop and by 18% compared with planted rye that was neither fertilized nor harvested. Estimates of producer revenue and net energy were also positive, with 8.3 Mg ha-1 of harvested rye biomass. If confirmed by field studies, these results suggest that double-cropping fertilized rye is a promising strategy to increase producer revenue, increase net energy production, and reduce drainage N loss.

Comments

This article is published as Malone, R. W., J. F. Obrycki, D. L. Karlen, Liwang Ma, T. C. Kaspar, D. B. Jaynes, T. B. Parkin et al. "Harvesting Fertilized Rye Cover Crop: Simulated Revenue, Net Energy, and Drainage Nitrogen Loss." Agricultural & Environmental Letters 3 (2018): 170041. doi: 10.2134/ael2017.11.0041.

Rights

Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.

Language

en

File Format

application/pdf

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