Journal or Book Title
Agricultural & Environmental Letters
First Page or Article ID Number
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.
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Malone, R. W.; Obrycki, J. F.; Karlen, Douglas L.; Kaspar, T. C.; Jaynes, D. B.; Parkin, T. B.; Lence, S. H.; Feyereisen, G. W.; Fang, Q. X.; Richard, T. L.; and Gillette, K., "Harvesting Fertilized Rye Cover Crop: Simulated Revenue, Net Energy, and Drainage Nitrogen Loss" (2018). Economics Publications. 655.