Agronomic Considerations for Sweet Sorghum Biofuel Production in the South-Central USA

Han, Kun‐Jun; Pitman, W. D.; Alison, M. W.; Harrell, Dustin L.; Viator, H. P.; McCormick, Michael E.; Gravois, K. A.; Kim, M.; Day, Donal F.

doi:10.1007/s12155-012-9185-3

Cited by 34 publications

(39 citation statements)

References 18 publications

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“…The low juice yield in Dale in 2015 may be due to observed low fresh stem biomass. The juice ˚Brix values were similar to those reported elsewhere [13] [22]. The positive response to N in sugar content in 2014 is in line with increase in water soluble sugars with N fertilizer reported earlier [30].…”

Section: Discussionsupporting

confidence: 89%

“…Nitrogen fertilized crop produced more yield than the control during both production years. However, the major increased was with the first increment of 40 kg•N•ha −1 , a result similar to that previously reported [20] [22]. Though there was yield increased up to 80 kg•N•ha −1 , the decrease in additional yield per unit of N may be attributed to diminishing returns.…”

Section: Discussionsupporting

confidence: 88%

“…For quantification, trehalose was used as an internal standard and sugar concentration was expressed as a percentage of juice volume. The sum of these individual soluble sugars was considered as total fermentable soluble sugars, an approach previously used by other researchers [22] [23].…”

Section: Juice Brix and Sugar Content Determinationmentioning

confidence: 99%

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Nitrogen Fertilizer and Panicle Removal in Sweet Sorghum Production: Effect on Biomass, Juice Yield and Soluble Sugar Content

Kering¹,

Temu²,

Rutto³

2017

JSBS

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Alternative and renewable bio-based energy sources are gaining prominence worldwide. Sweet sorghum is currently being evaluated throughout the world because its stem juices are rich in sugars that can be directly fermented to ethanol. In this two-year study, sweet sorghum varieties; Dale, Theis, Topper 76-6, and M81E (Obtained from Mississippi State University Experiment Station, MS) and CHR-SW8 (Obtained from Chromatin Inc., IL) were used. Nitrogen (N) fertilizer rates of 0, 40, 80 or 120 kg•N•ha −1 were applied to experimental units. The experiment was a randomized complete block design with treatments in a split-split plot arrangement with three replications. Nitrogen rate was the main plot, cultivar as sub-plot, and panicle removal as sub-plot. Results showed that N application increased fresh stem yield, juice volume, but had minimal effect on juice soluble sugar concentration. Compared to controls, application of ≥40 kg•N•ha −1 increased fresh yield and juice by >60% and 10%, respectively. There were also variety differences in harvested fresh biomass, juice volume and ˚Brix, and soluble sugar content. Dale and Theis consistently showed lower sucrose compared to other varieties over the two years. Panicle removal during early reproductive phase increased ˚Brix, sucrose and total sugar content in all varieties. Across the two years of study, panicle removal increased ˚Brix by more than 10%, sucrose and total sugar increased by more than 20%. Selection of varieties that produce high juice volume with high sugar content and strategies to inhibit seed formation may result in improved juice quality.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 88%

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Nitrogen Fertilizer and Panicle Removal in Sweet Sorghum Production: Effect on Biomass, Juice Yield and Soluble Sugar Content

Kering¹,

Temu²,

Rutto³

2017

JSBS

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“…Liquid extraction was filtered using 1‐mm mesh screen and immediately analyzed for concentration of sugar in solution (°Bx, g sugar in 100‐g solution) by refractometry in a standard sugarcane Brix analysis. Sugar production was determined by the equation:

normalfresh normalstem normalproduction \times (^{\circ} normalBx / 100) \times 0.90

(Han et al., ). Individual fermentable sugars including sucrose, glucose, and fructose were determined using a high performance liquid chromatography (HPLC) system (Agilent 1200 series) equipped with an HPX‐87K column (Bio‐Rad, Hercules, CA) and a differential refractive index (DRI) detector (G1362A Agilent).…”

Section: Methodsmentioning

confidence: 99%

Cover crop and tillage affect sweet sorghum production and soil chemical properties

Han

Alison

2020

Agronomy Journal

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Sweet sorghum [Sorghum bicolor (L.) Moench] is known for high production potential, even on marginal land. Field research was conducted in northeast and southeast Louisiana for 3 yr to determine the changes of sweet sorghum productivity and soil‐chemical properties influenced by applications of tillage and legume cover crop. Crimson clover (Trifolium incarnatum L.), and hairy vetch (Vicia villosa Roth) were planted in the fall and then compared for the following sweet sorghum production and soil‐chemical properties with those receiving 0, 56, and 112 kg ha−1 of synthetic N fertilizer under conventional tillage (CT) or no‐tillage (NT). Sweet sorghum cultivated after either legume cover crop produced equivalent amounts of sweet sorghum biomass and sugar as those of sweet sorghum receiving 56 or 112 kg ha−1 N fertilization. Increasing N fertilization rates from 56 to 112 kg ha−1 did not increase sweet sorghum production. Proportion of sucrose averaged 48% of fermentable carbohydrate in the juice, followed by glucose (23%) and fructose (16%). The proportion of sugars did not differ regardless of tillage or N treatment. Potential N production from hairy vetch ranged from 74–108 kg ha−1, which was greater than that from crimson clover. The benefit of CT was found in greater fresh biomass and higher plant population of sweet sorghum compared to those of NT. Soil organic matter varied in years and cultivation practices. Due to moderate N demand of sweet sorghum, legume cover crops are promising N providers without sweet sorghum production losses.

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“…Na busca de novas alternativas de energia renovável, a cultura do sorgo [Sorghum bicolor (L.) Moench.] se destaca, de forma semelhante à da cana-de-açúcar, por apresentar colmos suculentos com altos teores de açúcares diretamente fermentescíveis, os quais possibilitam a produção de etanol com até 93% de eficiência (Han et al, 2012). Além disso, seu bagaço pode ser aproveitado pela indústria na geração de energia e eletricidade, produção de etanol de segunda geração e, ainda, aproveitamento dos grãos que são úteis para consumo humano, produção de ração animal ou produção de combustíveis (Almodares & Hadi, 2009).…”

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Qualidade Do Caldo Para Produção De Etanol Em Cultivares De Sorgo Sacarino Sob Adubação Nitrogenada

Solano¹,

Ponciano²,

Daher³

et al. 2017

RBMS

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RESUMO -O sorgo sacarino tem potencial de uso como fonte de matéria-prima para a produção de bioetanol.Objetivou-se, com este estudo, analisar o efeito da adubação nitrogenada de cobertura na qualidade do caldo para QUALITY OF BROTH FOR ETHANOL PRODUCTION IN CULTIVARS OF SACARINE SORGHUM UNDER NITROGEN FERTILIZATIONABSTRACT -Sweet sorghum has potential as a source of raw material for the production of bioethanol. The objectiveof this study was to analyze the effect of nitrogen topdressing on the quality of the juice for ethanol production from four cultivars of sorghum. The experiment was conducted in Campos, State of Rio de Janeiro, Brazil, from January to May 2014. Four cultivars of sorghum: BRS 506, BRS 508, BRS 509 and BRS 511 were studied, and five nitrogen rates

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Agronomic Considerations for Sweet Sorghum Biofuel Production in the South-Central USA

Cited by 34 publications

References 18 publications

Nitrogen Fertilizer and Panicle Removal in Sweet Sorghum Production: Effect on Biomass, Juice Yield and Soluble Sugar Content

Nitrogen Fertilizer and Panicle Removal in Sweet Sorghum Production: Effect on Biomass, Juice Yield and Soluble Sugar Content

Cover crop and tillage affect sweet sorghum production and soil chemical properties

Qualidade Do Caldo Para Produção De Etanol Em Cultivares De Sorgo Sacarino Sob Adubação Nitrogenada

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