Biomass yield, crude protein yield and nitrogen use efficiency over nine years in annual and perennial cropping systems

European Journal of Agronomy, Год журнала: 2024, Номер 161, С. 127336 - 127336

Опубликована: Сен. 11, 2024

Язык: Английский

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The status and natural impact of floriculture production in Ethiopia: a systematic review

Environmental Science and Pollution Research, Год журнала: 2022, Номер 30(4), С. 9066 - 9081

Опубликована: Ноя. 28, 2022

Язык: Английский

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Waste to Worth: A Case Study of the Biogas Circular Economy in Pennsylvania

Journal of the ASABE, Год журнала: 2023, Номер 66(3), С. 771 - 787

Опубликована: Янв. 1, 2023

Highlights The case study farm produces 66% of its biogas from off-farm food waste sources, highlighting the potential to increase circularity and agricultural systems when farms capture recycle external sources. can meet 78% crop nitrogen needs products recycled in digestion, assuming a 37% use efficiency (NUE). However, phosphorus imported creates an excess relative needs. energy that is returned electric grid, providing broader benefits through circular economy approach. Widespread commercial implementation principles U.S. dairy sector requires more measured data about how successfully implement within constraints market incentives operations. Abstract. Coupling production with sustainable bioenergy may help us improve system work planetary boundaries for climate stabilization. leading dairies often do not have support claim. As result, practical studies economies commercially operating are lacking literature, which instead dominated by hypothetical theoretical analyses. To grow scale sustainability principles, it important understand these actual We conducted Pennsylvania, where well-managed anaerobic digester serves as basis allows next generation business expand portfolio revenue streams. recycles into heat, renewable electricity, fertilizer heat power farm, amend soil, reduce costs. also highlight farm's approach Pennsylvania using state's projected 2030 manure, corn stover, winter double crops, switchgrass, resources produce via or natural gas (RNG). estimate state could generate 40 million MJ annually such integrated digestion systems, meeting 3% electricity consumption. Circular like this be designed operate waste, nitrogen- phosphorus-rich soil amendments imports synthetic fertilizers, offset fossil consumption greenhouse emissions associated livestock production, regenerate ecosystems, ensure resilience sustainability, provide economic benefits. Keywords: Anaerobic Biogas, economy, Digestate, Food waste.

Язык: Английский

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Harvested winter rye energy cover crop: multiple benefits for North Central US

Environmental Research Letters, Год журнала: 2023, Номер 18(7), С. 074009 - 074009

Опубликована: Май 19, 2023

Abstract Cover crops (CCs) can reduce nitrogen (N) loss to subsurface drainage and be reimagined as bioenergy for renewable natural gas production carbon (C) benefits (fossil fuel substitution C storage). Little information is available on the large-scale adoption of winter rye these purposes. To investigate impacts in North Central US, we used Root Zone Water Quality Model simulate corn-soybean rotations with without across 40 sites. The simulations were interpolated a five-state area (IA, IL, IN, MN, OH) counties Mississippi River basin, which consists ∼8 million ha potential CCs artificially drained fields (more than 63 total). Harvesting fertilized before soybean planting this N loads Gulf Mexico by 27% relative no CCs, provide 18 Mg yr −1 biomass-equivalent 0.21 EJ biogas energy content or 3.5 times 2022 US cellulosic biofuel production. Capturing CO 2 from digesting region sequestering it underground geologic reservoirs could mitigate 7.5 . Nine clusters (hotspots) identified an example implementing CC industrial scale where 400 Gg sourced within 121 km radius. Hotspots consisted roughly 20% region’s ∼50% both reduction biomass. These results suggest that would substantially contribute goals reducing Mexico, increasing production, providing benefits.

Язык: Английский

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The importance of considering agricultural dynamics when discussing agro-environmental sustainability in futures studies of biogas

Futures, Год журнала: 2023, Номер 153, С. 103218 - 103218

Опубликована: Июль 11, 2023

Язык: Английский

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Sorghum Straw Pellets: A Dispatchable Energy Source for Australia’s Renewable Energy Transition

SSRN Electronic Journal, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Язык: Английский

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Influence of the Parameters of an Agricultural Biogas Plant on the Amount of Power Generated

Applied Sciences, Год журнала: 2024, Номер 14(10), С. 4200 - 4200

Опубликована: Май 15, 2024

Energy from biogas is widely available, inexpensive, and often contributes to waste management, making it one of the most promising renewable energy sources. The main factors influencing this process’ efficiency include substrates’ chemical composition, temperature, digester load. This paper presents possibilities offered by a plant built at farm specialising in dairy cows. dependence power generated micro on its technical parameters was analysed detail. Studies carried out authors an agricultural microgas (with electrical output 40 kW) have shown that they are designed maintain continuous production, despite changing process such as mass level, height, temperature or slurry flow into digester. However, point view amount electricity generated, changes would be made design plant. Firstly, more powerful generator installed cover requirements equipment so close rated capacity still sent grid. Secondly, replacing two existing agitators digestion (9 kW each) with lower (e.g., four 4.5 necessary. These should programmed operates any given time (the operating agitator depend composition digestate).

Язык: Английский

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Energy cover crops for biogas production increase soil organic carbon stocks: A modeling approach

GCB Bioenergy, Год журнала: 2022, Номер 15(2), С. 224 - 238

Опубликована: Ноя. 22, 2022

Abstract Energy cover crops for biogas production through anaerobic digestion (AD) are inserted between two primary crops. They replace either bare soil or nonharvested crops, and their management is usually intensified to produce more biomass. allow the of renewable energy as well digestate, used an organic fertilizer, without directly competing with food production. Because increased biomass export return a digested soil, impact on carbon (SOC) questioned. The objective this paper was study difference in SOC stocks induced by introduction AD coupled application resulting amount digestate. We model Sys‐Metha combined C AMG simulate 13 case studies France, scenarios comparing different intercrop practices, harvested not. Our results indicated that higher (from 6.7 11.1 t DM ha −1 ) comparison (2 led humified input (belowground digestate), despite high fraction exported AD. This resulted increase 0.01 0.12 year over 30 years). uncertainties parameters did not modify these results. However, equal would be lower

Язык: Английский

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Land cover changes with the development of anaerobic digestion for biogas production in France

GCB Bioenergy, Год журнала: 2023, Номер 15(5), С. 630 - 641

Опубликована: Фев. 20, 2023

Abstract Anaerobic digestion is developing in various countries worldwide to produce renewable energy. In addition, the resulting digestates provide readily available nutrients when applied cropping systems as fertilizers. The introduction of a biogas plant on farm can induce land cover changes, relation production feedstock for and/or modification farming system. aim this study was therefore characterize and quantify changes farms associated with plants France. We combined two national spatialized databases: Land Parcel Identification System (yearly French at parcel scale identifier per parcel) SINOE database (biogas location year start‐up). showed that, average, were limited, an increase maize areas (+3.4% total areas) compensated by decrease wheat rapeseed (−1.8% −1.9%, respectively), but certain variability. regulation market limiting use dedicated energy crops seems have limited France compared other countries. However, we elaborated typology characterized five clusters across country. main one (67% farms) corresponded unchanged after plant. four contrasting example, or grassland areas, strong replacement winter barley. diversity driving factors behind these deserve be better studied understood through further farmer surveys.

Язык: Английский

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Impacts on water quality of producing biogas on pig farms as a function of the associated agricultural practices

Environmental Research Communications, Год журнала: 2024, Номер 6(7), С. 075021 - 075021

Опубликована: Июль 1, 2024

Abstract The aim of this study was to assess positive or negative impacts anaerobic digestion (AD) on water quality using a systemic approach. To end, we used the agro-hydrological model Topography-based Nitrogen Transfer and Transformation (TNT2), spatially explicit that simulates nitrogen flows at watershed scale daily time step. Four scenarios were constructed analyzed: baseline before introduction AD (S0), with adjusted fertilization (S1), unadjusted (S2), agroecological (S3). results showed that, when spreading practices similar an equivalent amount effective applied, digested pig slurry generally had predicted nitrate leaching undigested slurry. In addition, replacing catch crops energy cover little impact quality. Scenario S3 most favorable one for biogas production, but not soil organic storage food feed production. This study’s strength is its approach, which considered both environmental agronomic aspects scenarios.

Язык: Английский

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