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“average specific methane yield”

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2010 ’20

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Observationobservedoriginal resultmeasured

Claim · model-written summary

Average specific methane yield varied from 144 to 233 ml CH 4 g −1 VS between years.

Taxon: giant reedArundo donaxt0
Outcome: average specific methane yielde0
Value: 144 to 233 ml CH 4 g −1 VSe0

Verbatim

e0
“The average specific methane yield varied substantially between years (i.e. from 144 to 233 ml CH 4 g −1 VS)”
✓ located verbatim in the source · abstract, characters 1334–1442

t0
“giant reed”
✓ located verbatim in the source · title, characters 29–39

Title

Biomass and methane yield of giant reed (Arundo donaxL.) as affected by single and double annual harvest

Enrico Ceotto; Ciro Vasmara; Rosa Marchetti; et al. GCB Bioenergy 2020. doi:10.1111/gcbb.12790

Other claims from this paper (8)

Intervention effect Single harvest gave the highest annual dry matter yield of 59.0 Mg DM ha −1.
Intervention effect DH1 had 30% lower dry matter yield than single harvest.
Intervention effect DH2 had 15% lower dry matter yield than single harvest.
Intervention effect Harvesting twice gave little specific methane yield advantage.
Association Specific methane yield tended to fall as harvested biomass aged.
Association Methane yield per hectare was driven by dry matter yield.
Intervention effect Single harvest produced the highest methane yield per hectare, averaging 9110 m 3 CH 4 ‐STP ha −1.
Recommendation The authors recommend single annual harvest at the end of the growing season to maximize methane production.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The three-cut regime had an average specific methane yield of 0.289 m3N kg−1 volatile solids−1.

Taxon: Arrhenatheretum Grasslandt0
Treatment: three-cut regimee0
Outcome: specific methane yielde0
Value: 0.289 m3N kg−1 volatile solids−1e0

Verbatim

e0
“The three-cut regime had the highest annual accumulated dry matter yield (11.8–14.8 Mg ha−1), an average specific methane yield of 0.289 m3N kg−1 volatile solids−1”
✓ located verbatim in the source · abstract, characters 726–889

t0
“Arrhenatheretum Grassland”
✓ located verbatim in the source · title, characters 31–56

Title

The Performance of Mesotrophic Arrhenatheretum Grassland under Different Cutting Frequency Regimes for Biomass Production in Southwest Germany

Moritz von Cossel; Andrea Bauerle; Meike Boob; et al. Agriculture 2019. doi:10.3390/agriculture9090199

Other claims from this paper (8)

Intervention effect The three-cut regime produced the highest annual accumulated dry matter yield of 11.8–14.8 Mg ha−1.
Observation The three-cut regime produced an accumulated annual methane yield of 3167–3893 m³N ha−1.
Intervention effect The four-cut regime had lower dry matter yield than the three-cut regime.
Observation The four-cut regime had the highest ash content.
Observation The four-cut regime had the highest nitrogen content.
Recommendation The authors conclude that the three-cut regime promises the best yield performance.
Recommendation The authors suggest that the two-cut regime could provide more biodiversity conservation and wild-game protection.
Recommendation The authors suggest that the two-cut regime could improve the social-ecological sustainability of biogas crop cultivation.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize harvested at H2 had the highest average specific methane yield, 0.35 ± 0.03 m3CH4 kgVS−1.

Taxon: maizeZea mayse0
Outcome: average SMYe0
Direction: higheste0
Value: 0.35 ± 0.03 m3CH4 kgVS−1e0
Qualifier: harvested at H2e0

Verbatim

e0
“The highest average SMY of 0.35 ± 0.03 m3CH4 kgVS−1 was found for maize samples harvested at H2.”
✓ located verbatim in the source · abstract, characters 1060–1156

Title

Assessment of Areal Methane Yields from Energy Crops in Ukraine, Best Practices

Ievgeniia Morozova; Hans Oechsner; Mykola Roik; et al. Applied Sciences 2020. doi:10.3390/app10134431

Other claims from this paper (2)

Intervention effectobservedoriginal resultprojected

Claim · model-written summary

PSIM could yield average methane emissions of 149 kg ha −1 per season.

Taxon: riceOryza sativat0
Treatment: PSIMe0
Outcome: CH 4 emissionse0
Value: 149 kg ha −1e0
Setting: globale0

Not reportedComparatorDirection

Verbatim

e0
“Implementing PSIM could potentially achieve global average CH 4 emissions, yield, and NEEB of 149 kg ha −1 , 8,188 kg ha −1 , and US$ 1,798 ha −1 per season, respectively”
✓ located verbatim in the source · abstract, characters 642–812

t0
“rice”
✓ located verbatim in the source · title, characters 58–62

Title

Maximizing yield and reducing methane emissions in global rice systems through pedoclimatic-specific integrated management

Xiaoxia Guo; Zhong Chen; Qi Miao; et al. Cell Reports Sustainability 2026. doi:10.1016/j.crsus.2026.100710

Other claims from this paper (5)

Intervention effect PSIM could yield 8,188 kg ha −1 per season.
Intervention effect PSIM could yield NEEB of US$1,798 ha −1 per season.
Intervention effect PSIM could cut global methane emissions by 34%, or 8.9 Tg annually.
Intervention effect PSIM could increase global yield by 88%, or 418 Tg annually.
Intervention effect PSIM could increase NEEB by 214%, or US$129 billion annually.

Intervention effectobservedoriginal resultprojected

Claim · model-written summary

PSIM could yield 8,188 kg ha −1 per season.

Taxon: riceOryza sativat0
Treatment: PSIMe0
Outcome: yielde0
Value: 8,188 kg ha −1e0
Setting: globale0

Not reportedComparatorDirection

Verbatim

e0
“Implementing PSIM could potentially achieve global average CH 4 emissions, yield, and NEEB of 149 kg ha −1 , 8,188 kg ha −1 , and US$ 1,798 ha −1 per season, respectively”
✓ located verbatim in the source · abstract, characters 642–812

t0
“rice”
✓ located verbatim in the source · title, characters 58–62

Title

Maximizing yield and reducing methane emissions in global rice systems through pedoclimatic-specific integrated management

Xiaoxia Guo; Zhong Chen; Qi Miao; et al. Cell Reports Sustainability 2026. doi:10.1016/j.crsus.2026.100710

Other claims from this paper (5)

Intervention effect PSIM could yield average methane emissions of 149 kg ha −1 per season.
Intervention effect PSIM could yield NEEB of US$1,798 ha −1 per season.
Intervention effect PSIM could cut global methane emissions by 34%, or 8.9 Tg annually.
Intervention effect PSIM could increase global yield by 88%, or 418 Tg annually.
Intervention effect PSIM could increase NEEB by 214%, or US$129 billion annually.

Intervention effectobservedoriginal resultprojected

Claim · model-written summary

PSIM could yield NEEB of US$1,798 ha −1 per season.

Taxon: riceOryza sativat0
Treatment: PSIMe0
Outcome: NEEBe0
Value: US$ 1,798 ha −1e0
Setting: globale0

Not reportedComparatorDirection

Verbatim

e0
“Implementing PSIM could potentially achieve global average CH 4 emissions, yield, and NEEB of 149 kg ha −1 , 8,188 kg ha −1 , and US$ 1,798 ha −1 per season, respectively”
✓ located verbatim in the source · abstract, characters 642–812

t0
“rice”
✓ located verbatim in the source · title, characters 58–62

Title

Maximizing yield and reducing methane emissions in global rice systems through pedoclimatic-specific integrated management

Xiaoxia Guo; Zhong Chen; Qi Miao; et al. Cell Reports Sustainability 2026. doi:10.1016/j.crsus.2026.100710

Other claims from this paper (5)

Intervention effect PSIM could yield average methane emissions of 149 kg ha −1 per season.
Intervention effect PSIM could yield 8,188 kg ha −1 per season.
Intervention effect PSIM could cut global methane emissions by 34%, or 8.9 Tg annually.
Intervention effect PSIM could increase global yield by 88%, or 418 Tg annually.
Intervention effect PSIM could increase NEEB by 214%, or US$129 billion annually.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mid-October harvest had highest lactic acid content, averaging 3.0% of DM.

Taxon: miscanthusMiscanthuse0 t0 e1 e2
Treatment: mid‐Octobere0 t0 e1 e2
Outcome: lactic acid contente0 t0 e1 e2
Direction: higheste0 t0 e1 e2
Value: 3.0% of DMe0 t0 e1 e2
Comparator: harvests in mid‐September and beginning of Octobere0 t0 e1 e2

Verbatim

e0
“highest lactic acid content (average: 3.0% of DM) and lowest pH (average: 4.39) compared to the harvests in mid‐September and beginning of October”
✓ located verbatim in the source · abstract, characters 1223–1369

t0
“miscanthus”
✓ located after whitespace/quote normalisation · title, characters 0–10

e1
“The ensiled biomass was found to have an up to 7% higher substrate‐specific methane yield and also showed a higher digestion velocity than the non‐ensiled biomass”
✓ located verbatim in the source · abstract, characters 978–1140

e2
“silage quality was best when miscanthus was harvested in mid‐October”
✓ located verbatim in the source · abstract, characters 1146–1214

Title

Miscanthus for biogas production: Influence of harvest date and ensiling on digestibility and methane hectare yield

Anja Mangold; Iris Lewandowski; Jens Hartung; et al. GCB Bioenergy 2018. doi:10.1111/gcbb.12584

Other claims from this paper (8)

Intervention effect Ensiling increased substrate-specific methane yield by up to 7%.
Intervention effect Ensiling increased digestion velocity.
Intervention effect Mid-October harvest gave best silage quality.
Intervention effect Mid-October harvest had lowest pH, averaging 4.39.
Observation Ensiling losses reached 7.6% of fresh matter for Sin55.
Observation Ensiled miscanthus had substrate-specific methane yield up to 353 Nml CH 4 (g oDM) −1.
Intervention effect Ensiled and non-ensiled methane hectare yields did not differ significantly.
Observation Miscanthus x giganteus was judged the best genotype for ensiling because of silage quality.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mid-October harvest had lowest pH, averaging 4.39.

Taxon: miscanthusMiscanthuse0 t0 e1 e2
Treatment: mid‐Octobere0 t0 e1 e2
Outcome: pHe0 t0 e1 e2
Direction: loweste0 t0 e1 e2
Value: 4.39e0 t0 e1 e2
Comparator: harvests in mid‐September and beginning of Octobere0 t0 e1 e2

Verbatim

e0
“lowest pH (average: 4.39) compared to the harvests in mid‐September and beginning of October”
✓ located verbatim in the source · abstract, characters 1277–1369

t0
“miscanthus”
✓ located after whitespace/quote normalisation · title, characters 0–10

e1
“The ensiled biomass was found to have an up to 7% higher substrate‐specific methane yield and also showed a higher digestion velocity than the non‐ensiled biomass”
✓ located verbatim in the source · abstract, characters 978–1140

e2
“silage quality was best when miscanthus was harvested in mid‐October”
✓ located verbatim in the source · abstract, characters 1146–1214

Title

Miscanthus for biogas production: Influence of harvest date and ensiling on digestibility and methane hectare yield

Anja Mangold; Iris Lewandowski; Jens Hartung; et al. GCB Bioenergy 2018. doi:10.1111/gcbb.12584

Other claims from this paper (8)

Intervention effect Ensiling increased substrate-specific methane yield by up to 7%.
Intervention effect Ensiling increased digestion velocity.
Intervention effect Mid-October harvest gave best silage quality.
Intervention effect Mid-October harvest had highest lactic acid content, averaging 3.0% of DM.
Observation Ensiling losses reached 7.6% of fresh matter for Sin55.
Observation Ensiled miscanthus had substrate-specific methane yield up to 353 Nml CH 4 (g oDM) −1.
Intervention effect Ensiled and non-ensiled methane hectare yields did not differ significantly.
Observation Miscanthus x giganteus was judged the best genotype for ensiling because of silage quality.

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“average specific methane yield”

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