Navigation Links
Switchgrass produces biomass efficiently
Date:11/23/2009

MADISON, WI, November 16, 2009 -- A USDOE and USDA study concluded that 50 million U.S. acres of cropland, idle cropland, and cropland pasture could be converted from current uses to the production of perennial grasses, such as switchgrass, from which biomass could be harvested for use as a biofuel feedstock. Economically viable production of a perennial grass monoculture from which substantial quantities of biomass are removed annually is expected to require nitrogen fertilizer.

An agronomist at Oklahoma State University, Regents Professor Emeritus Charles Taliaferro, designed and conducted an experiment to determine biomass yield from alternative levels of nitrogen fertilizer for a single and double harvest per year system for four perennial grass species (bermudagrass, flaccidgrass, lovegrass, and switchgrass). Agricultural economics graduate student, Mohua Haque, used the data produced in the field experiments to determine the most economical species, level of nitrogen, and harvest frequency for several sets of nitrogen fertilizer prices and hypothetical biomass prices. The study was funded by the USDA Cooperative State Research, Education, and Extension Service and by Oklahoma State University. Results from the study were published in the November-December issue of the Agronomy Journal.

Haque explains, "For the soil and weather conditions that prevailed at the experiment site for the duration of the study, switchgrass clearly produced more dry biomass per dollar cost than the other three species. If perennial grass for biofuel feedstock is the best alternative for a field, and if the biomass price exceeds the cost of production, the optimal strategy would be to establish switchgrass, and in post-establishment years, to fertilize with 60 pounds of nitrogen per acre per year, and to harvest once per year after senescence."

If an economically viable system for conversion of biomass from perennial grasses to biofuels is developed, millions of acres may be bid from current uses and seeded to switchgrass.

Results from the study will be incorporated into a model at Oklahoma State University to evaluate the economic potential of alternative cellulosic biofuels production systems for Oklahoma. The goal of the research effort is to construct and solve models to determine the optimal number, size, and locations of cellulosic biorefineries, feedstock production counties, harvest months, fertilizer levels, number of harvest machines, storage strategy, and feedstock transportation flows.


'/>"/>

Contact: Sara Uttech
suttech@agronomy.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Related biology news :

1. Miscanthus can meet US biofuels goal using less land than corn or switchgrass
2. Accidental discovery produces durable new blue pigment for multiple applications
3. UC Davis challenge produces a better air conditioner
4. Wastewater produces electricity and desalinates water
5. Researchers describe implausible chemistry that produces herbicidal compound
6. Obscure fungus produces diesel fuel components
7. Ethanol byproduct produces green results
8. New chemotherapy combo produces side effects, but no extra efficacy, in early breast cancer patients
9. New study shows Dermytol produces pronounced decrease in malignant melanoma tumor volume
10. New technique can fast-track better ionic liquids for biomass pre-treatments
11. Biomass as a source of raw materials
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/2/2016)... This BCC Research report provides a ... the recent advances in high throughput ‘omic platforms ... forward. Includes forecast through 2019. Use ... opportunities that exist in the bioinformatic market. Analyze ... well as IT and bioinformatics service providers. Analyze ...
(Date:2/2/2016)... , Feb. 2, 2016   Parabon NanoLabs ... the U.S. Army Research Office and the Defense ... and sensitivity of the company,s Snapshot Kinship ... Mission and, more generally, defense-related DNA forensics.  Although ... capabilities (predicting appearance and ancestry from DNA evidence), ...
(Date:2/1/2016)... 2016  Today, the first day of American Heart ... develop a first of its kind workplace health solution ... In the first application of Watson ... ), and Welltok will create a new offering that ... analytics, delivered on Welltok,s health optimization platform. The effort ...
Breaking Biology News(10 mins):
(Date:2/11/2016)...  Neurocrine Biosciences, Inc. (NASDAQ: NBIX ) today announced its ... --> --> For the ... $29.3 million, or $0.34 loss per share, compared to a net ... same period in 2014. For the year ended December 31, 2015, ... loss per share, as compared to a net loss of $60.5 ...
(Date:2/11/2016)... BioPharma Selling Solutions (Spectra) is a new Contract ... experience, expertise, operational delivery and customer focus to ... in concert with industry leading commercial experts, the ... needs of its clients by providing value-based creative ... non-personal promotion. --> ...
(Date:2/11/2016)... Florida , February 11, 2016 ... PositiveID Corporation ("PositiveID" or "Company") (OTCQB: PSID), a ... announced today that its Thermomedics subsidiary, which markets ... on its growth plan in January 2016, including ... distributors, increasing sequential monthly sales growth, and establishing ...
(Date:2/11/2016)... ... February 11, 2016 , ... Global Stem ... clinic in Quito, Ecuador. The new facility will provide advanced protocols and state-of-the-art ... around the world. , The new GSCG clinic is headed by four ...
Breaking Biology Technology: