Chemical composition and methane yield of maize hybrids with contrasting maturity

Schittenhelm, Siegfried

doi:10.1016/j.eja.2008.04.001

Cited by 99 publications

(59 citation statements)

References 15 publications

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“…The chemical composition of maize silage was typical for the substrate and was similar to the results of other studies (Schittenhelm 2008;Negri et al 2014). The goldenrod herb was characterized by higher TS but displayed lower VS than maize silage.…”

Section: Chemical Compositionsupporting

confidence: 76%

Enhancement of Biogas Production by Co-Digestion of Maize Silage with Common Goldenrod Rich in Biologically Active Compounds

Oleszek¹,

Krzemińska²

2016

BioResources

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This paper analyses the suitability of common goldenrod plants as monoand co-substrates for biogas production. Furthermore, the role of bioactive compounds included in the biomass of this plant species was investigated. The results showed that the common goldenrod species produced lower biogas and methane yields than maize silage. However, the methane fermentation of their mixture resulted in approximately 9.5% higher biogas yield and 16.6% higher methane yield compared to the theoretical yields estimated based on two mono-digestions. A statistically significant increase in biogas production efficiency resulted from more favorable C/N ratio and the influence of bioactive compounds contained in common goldenrod. The addition of goldenrod crude extract caused an approximately 30% increase in the biogas yield of maize silage. This effect may be associated with a positive impact of biologically active substances on microorganisms or with a decrease in redox potential of the fermenting mass.

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Section: Chemical Compositionsupporting

confidence: 76%

Enhancement of Biogas Production by Co-Digestion of Maize Silage with Common Goldenrod Rich in Biologically Active Compounds

Oleszek¹,

Krzemińska²

2016

BioResources

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“…Moreover, cultivation and ensiling techniques are well known by farmers [7,8]. Further, silage maize is suitable for continuous cultivation due to its self-compatibility.…”

Section: Introductionmentioning

confidence: 99%

Silage Maize and Sugar Beet for Biogas Production in Rotations and Continuous Cultivation: Dry Matter and Estimated Methane Yield

Brauer-Siebrecht¹,

Jacobs²,

Christen

et al. 2016

Agronomy

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Abstract:Since silage maize is the main crop grown for biogas production (biomass crop) in Germany; its increasing cultivation is critically discussed in terms of social and agronomical aspects. To investigate if sugar beet is suitable as an alternative biomass crop to silage maize; three-year field trials with both biomass crops in rotations with winter wheat (food crop) and continuous cultivation were conducted at three highly productive sites. Dry matter (DM) yield per hectare was measured via field trials whereas methane yield per hectare was estimated via a calculation. Higher annual DM yield was achieved by silage maize (19.5-27.4 t¨ha´1¨a´1) compared to sugar beet root (10.7-23.0 t¨ha´1¨a´1). Dry matter yield was found to be the main driver for the estimated methane yield. Thus; higher estimated methane yield was produced by silage maize (6458-9388 Nm 3¨h a´1) with overlaps to sugar beet root (3729-7964 Nm 3¨h a´1). We; therefore; classify sugar beet as a suitable alternative biomass crop to silage maize; especially when cultivated in crop rotations with winter wheat. Additionally; we found that the evaluation of entire crop rotations compared to single crops is a more precise approach since it includes rotational effects.

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“…However, Schittenhelm (2008) reported that despite substantially different nutrient concentration among some maize hybrids used in a trial, no clear-cut association existed between chemical composition and specific methane yield. This variation could be due to variation in chemical content within critical limits to affect BMP.…”

Section: A Gronomic Practicesmentioning

confidence: 99%

Methods for determination of biomethane potential of feedstocks: a review

2017

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Chemical composition and methane yield of maize hybrids with contrasting maturity

Cited by 99 publications

References 15 publications

Enhancement of Biogas Production by Co-Digestion of Maize Silage with Common Goldenrod Rich in Biologically Active Compounds

Enhancement of Biogas Production by Co-Digestion of Maize Silage with Common Goldenrod Rich in Biologically Active Compounds

Silage Maize and Sugar Beet for Biogas Production in Rotations and Continuous Cultivation: Dry Matter and Estimated Methane Yield

Methods for determination of biomethane potential of feedstocks: a review

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