Simulating the feasibility of dual use switchgrass on cow-calf operations
dc.creator | Popp, Michael P. | |
dc.creator | Ashworth, Amanda J. | |
dc.creator | West, Charles P. (TTU) | |
dc.date.accessioned | 2023-05-11T18:49:15Z | |
dc.date.available | 2023-05-11T18:49:15Z | |
dc.date.issued | 2021 | |
dc.description | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. cc-by | |
dc.description.abstract | Meeting biorefineries’ demands for lignocellulosic biomass will require sourcing feed-stock without affecting the food or animal-feed supply. A decision-aid model can assess the dual use of switchgrass (Panicum virgatum L.) to maintain animal production while providing biomass. We simulated a mixed-farm operation with 156 ha of hay+pasture, 96 beef cows (Bos spp.), and poultry (Gallus gallus L.) production wherein the hay land was converted to switchgrass for dual use as biomass and forage. The cow-calf simulator tracked changes in forage and cattle production, economic returns, and net greenhouse gas (GHG) emissions. Dual use of switchgrass consisted of harvesting the first cutting (mid-June) for hay and the second cutting (October-November) for bio-mass. Dual use required a modest increase in fertilizer application and supplementing cows with corn grain to meet nutritional requirements. Converting hay land to dual-use switchgrass produced 122 Mg of switchgrass, reduced net GHG emissions for autumn-and spring-calving operations by 3.4 and 3.6%, respectively, and increased the farm profit by approximately $1,500 when priced at $50 Mg−1 regardless of the calving season. This simulation provided evidence that conversion of hay lands (in a beef cow-calf and poultry farm) to dual-use switchgrass can avoid displacing food pro-duction, while supplying bioenergy feedstock and reducing climate-forcing gases. | |
dc.identifier.citation | Popp, M.P., Ashworth, A.J., & West, C.P.. 2021. Simulating the feasibility of dual use switchgrass on cow-calf operations. Energies, 14(9). https://doi.org/10.3390/en14092422 | |
dc.identifier.uri | https://doi.org/10.3390/en14092422 | |
dc.identifier.uri | https://hdl.handle.net/2346/93467 | |
dc.language.iso | eng | |
dc.subject | Cow-calf production | |
dc.subject | Hay quality | |
dc.subject | Net greenhouse gas emissions | |
dc.subject | Switchgrass | |
dc.title | Simulating the feasibility of dual use switchgrass on cow-calf operations | |
dc.type | Article |
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