Crop Management of Switchgrass

Sanderson, Matt A.; Schmer, Marty R.; Owens, Vance N.; Keyser, Pat; Elbersen, Wolter

doi:10.1007/978-1-4471-2903-5_4

Cited by 28 publications

(25 citation statements)

References 95 publications

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“…With appropriate input, specifically N, it is possible to maintain biomass yields for considerable periods of time (>5 years) [22,23]. Under different soil types that have been evaluated, P and K were not as critical as N for maintaining biomass yields, although this can be expected to be soil dependent [24].…”

Section: Impacts Of Germplasm and Harvest Management On Switchgrass Pmentioning

confidence: 99%

Senescence, dormancy and tillering in perennial C4 grasses

2014

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a b s t r a c tPerennial, temperate, C 4 grasses, such as switchgrass and miscanthus have been tabbed as sources of herbaceous biomass for the production of green fuels and chemicals based on a number of positive agronomic traits. Although there is important literature on the management of these species for biomass production on marginal lands, numerous aspects of their biology are as yet unexplored at the molecular level. Perenniality, a key agronomic trait, is a function of plant dormancy and winter survival of the belowground parts of the plants. These include the crowns, rhizomes and meristems that will produce tillers. Maintaining meristem viability is critical for the continued survival of the plants. Plant tillers emerge from the dormant crown and rhizome meristems at the start of the growing period in the spring, progress through a phase of vegetative growth, followed by flowering and eventually undergo senescence. There is nutrient mobilization from the aerial portions of the plant to the crowns and rhizomes during tiller senescence. Signals arising from the shoots and from the environment can be expected to be integrated as the plants enter into dormancy. Plant senescence and dormancy have been well studied in several dicot species and offer a potential framework to understand these processes in temperate C 4 perennial grasses. The availability of latitudinally adapted populations for switchgrass presents an opportunity to dissect molecular mechanisms that can impact senescence, dormancy and winter survival. Given the large increase in genomic and other resources for switchgrass, it is anticipated that projected molecular studies with switchgrass will have a broader impact on related species.

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Section: Impacts Of Germplasm and Harvest Management On Switchgrass Pmentioning

confidence: 99%

Senescence, dormancy and tillering in perennial C4 grasses

2014

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“…Perennial warm-season grasses harvested after frost typically contain about 0.6% N. Consequently, about 6 kg of N ha −1 yr −1 should be applied for each 1 Mg ha −1 of anticipated biomass yield [42]. Phosphorus and K are generally adequate for warm-season grass growth on most cropland soils [58,85], but switchgrass has responded to fertilizer P if soil-test P is low or the soil on the site is very acidic (i.e., pH 4.3 to 4.9) [81]. Biochar, a co-product of fast pyrolysis, is being evaluated for its agronomic and environmental value as a soil amendment on land planted to continuous no-tillage corn and on fields being seeded to perennial bioenergy crops.…”

Section: Challenges To Production Practicesmentioning

confidence: 99%

Midwest vision for sustainable fuel production

et al. 2014

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“…Switchgrass has a high yield potential in various sites and soils (Sanderson et al, 2012;Sadeghpour et al, 2014d,e) and can be grown on marginal lands with relatively low chemical input after establishment (Berti and Johnson, 2013;Duclos et al, 2013). It is easy to manage, and can be harvested using conventional hay-making equipments (Herbert et al, 2012).…”

Section: Introductionmentioning

confidence: 98%