The influence of sweet sorghum crop stand arrangement on biomass and biogas production

Pazderů, Kateřina; Hodoval, J.; Urban, Ján; Pulkrábek, J.; Pačuta, V.; Adamčík, Jozef

doi:10.17221/562/2014-pse

Cited by 15 publications

(8 citation statements)

References 6 publications

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“…Dissimilarities were observed regarding the HCEL content, which was strongly influenced by the HD at MQ17 and ST17 but not at MQ17. Most of the literature refers to an increasing trend with maturity for the non‐degradable fraction, particularly lignin (Hassan et al, 2019; Nurk et al, 2016; Pazderů et al, 2014). In contrast to earlier findings, no evidence of an effect of the HD on the ADL was confirmed.…”

Section: Discussionmentioning

confidence: 99%

Effects of sorghum biomass quality on ensilability and methane yield

et al. 2021

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Sorghum is currently being introduced in the temperate regions of Europe. It is characterized by good digestibility and high biomass yields, which make it a useful crop for anaerobic digestion. In this study, six commercial sorghum varieties comprising four different cultivars of Sorghum bicolor L. Moench and two interspecific sorghum hybrids (Sorghum sudanense L. × S. bicolor L. Moench) were harvested on two different dates during the years 2016 and 2017 at two diverse soil‐climate sites in Germany. The fresh harvested material and silages were analyzed to examine the ensilability of the different varieties with contrasting maturity characteristics. Subsequently, methane production experiments were performed to determine the specific methane yield (SMY) of the samples. The sorghum fresh matter (FM) varied among the sorghum types, including the parameters total solids (TS; 22.69%–46.93%FM), water‐soluble carbohydrates (2.68%–11.38%TS), and nitrates (0%–0.35%TS). The excellent ensiling ability of all the sorghum types analyzed was confirmed by evaluating the fermentation profile (pH range of 3.7–4.6; dominant presence of lactic acid [LA]; acetic acid [AA] in the range of 0.70%–2.38%TS; insignificant amount of butyric acid). The SMY ranged between 231.25 and 321.31 Ln kg−1 VS and tended to decrease with the increasing harvest time and maturity. LA and AA were positively correlated with the SMY, while the neutral detergent fiber content was negatively correlated with it. The SMY—a key parameter reflecting the crop biomass quality for biogas production—was slightly higher for S. bicolor than for the sorghum hybrids. However, the results of this study confirmed that if the final purpose is biomethanation, the ensilability of different sorghum types imposes no restriction. Furthermore, different sorghum types offer a wide harvest window, which can be useful for cropping schemes, ensiling, and methane production.

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Section: Discussionmentioning

confidence: 99%

Effects of sorghum biomass quality on ensilability and methane yield

et al. 2021

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“…Due to lower demand for moisture during vegetation and high yields of the aboveground biomass, sorghum is one of the few crops that can be successfully grown in drier conditions as a possible alternative to silage corn for feed purposes and for biogas production (Pazderů et al 2014).…”

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confidence: 99%

Stimulation sorghum seed leading to enlargement of optimum conditions during germination and emergence

Adamčík¹,

Tomasek²,

Pulkrábek³

et al. 2016

PLANT SOIL ENVIRON

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The ways to improve the vitality of sorghum seed after treatment with Lexin and M-Sunagreen were tested in laboratory conditions. These methods of seed stimulation were also tested in field conditions. All experiments were carried out in 2011-2013. Positive results after using the presented formulations for testing of germination were observed not only in laboratory conditions but also in field experiments. Seeds stimulated by Lexin reached statistically higher germination (95%) compared to control (91.5%) with the shortest medium time of germination (3.5 days) versus control seeds (4.3 days). Higher, faster and smoother germination of stimulated seeds resulted in higher average number of plants per m 2 (about 2.1 plants/1 m 2 in Lexin compared to control seeds) and thereby contributed to higher average yields up to two tons of dry matter per hectare.

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“…The parameter averages were estimated across four plot replications. Treatment averages separation was carried out using the Tukey test at the probability level of α = 0.05 [47]. The four tested fertilization managements were considered fixed factors and the four replications were entered as random effects [48].…”

Section: Statistical Analysesmentioning

confidence: 99%

Sustainable Production of Sweet Sorghum as a Bioenergy Crop Using Biosolids Taking into Account Greenhouse Gas Emissions

Głąb

Sowiński

2019

Sustainability

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Currently, little data are available on greenhouse gas (GHG) emissions from sweet sorghum production under temperate climate. Similarly, information on the effect of bio-based waste products use on the carbon (C) footprint of sorghum cultivation is rare in the literature. The aim of this study was to evaluate the agronomical and environmental effects of the application of biosolids as a nitrogen source in the production of sweet sorghum as a bioenergy crop. The yield of sorghum biomass was assessed and the GHG emissions arising from crop production were quantified. The present study focused on whether agricultural use of sewage sludge and digestate could be considered an option to improve the C footprint of sorghum production. Biosolids—sewage sludge and digestate—could be recognized as a nutrient substitute without crop yield losses. Nitrogen application had the greatest impact on the external GHG emissions and it was responsible for 54% of these emissions. CO2eq emissions decreased by 14 and 11%, respectively, when sewage sludge and digestate were applied. This fertilization practice represents a promising strategy for low C agriculture and could be recommended to provide sustainable sorghum production as a bioenergy crop to mitigate GHG emissions.

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The influence of sweet sorghum crop stand arrangement on biomass and biogas production

Cited by 15 publications

References 6 publications

Effects of sorghum biomass quality on ensilability and methane yield

Effects of sorghum biomass quality on ensilability and methane yield

Stimulation sorghum seed leading to enlargement of optimum conditions during germination and emergence

Sustainable Production of Sweet Sorghum as a Bioenergy Crop Using Biosolids Taking into Account Greenhouse Gas Emissions

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