Nitrogen balances of innovative cropping systems for feedstock production to future biorefineries

Manevski, Kiril; Lærke, Poul Erik; Olesen, Jørgen E.; Jørgensen, Uffe

doi:10.1016/j.scitotenv.2018.03.155

Cited by 45 publications

(24 citation statements)

References 46 publications

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“…Rotation with perennial grasses was found to double the biomass yield and biomass N Table 5. P-values, SEM and number of times behaviours occurred per session (8 min) in the different treatments and pig body weights (BW) prior to feeding N = 16, after feeding N = 64 and apart from feeding N = 32. and reduce nitrate leaching by 70-80% compared to the traditional systems with annual crops (Pugesgaard et al, 2015;Manevski et al, 2017Manevski et al, , 2018. Long term monitoring on the agricultural plains in southern Sweden have also shown lower soil carbon contents, compared to arable soils in forest districts with large areas of ley production (Eriksson et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Inclusion of intensively manipulated silage in total mixed ration to growing pigs – influence on silage consumption, nutrient digestibility and pig behaviour

Åkerfeldt

Holmström

Wallenbeck

et al. 2018

Acta Agriculturae Scandinavica, Section A — Animal Science

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This study investigated how intensively manipulated grass/clover silage (finer structure than chopped silage) fed in total mixed ration (TMR), influenced feed consumption, total tract apparent digestibility (TTAD) and pig behaviour. Ten Yorkshire x Hampshire (YH) pigs were included in a digestibility experiment and 64 YH pigs in a behaviour experiment. Pigs received TMR with 20% dry matter inclusion of either intensively manipulated (SI) or chopped silage (SC). Behaviour was registered with instantaneous and continuous sampling. SI pigs consumed more silage (p = 0.001) and spent more time eating from the through (p < 0.01), however no significant difference in TTAD was found (p > 0.05). Less social interactions prior to feeding (p = 0.029) and less rooting after feeding (p < 0.05) were found among SI pigs, indicating SI pigs being more satisfied for a longer time after feeding. We conclude that TMR with intensively manipulated silage benefits feed consumption and increases the opportunities for pigs perform feed-related behaviours. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 99%

Inclusion of intensively manipulated silage in total mixed ration to growing pigs – influence on silage consumption, nutrient digestibility and pig behaviour

Åkerfeldt

Holmström

Wallenbeck

et al. 2018

Acta Agriculturae Scandinavica, Section A — Animal Science

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“…Environmental benefits in converting fields to perennial crops include reduced leaching of nitrogen, the potential to lower use of N-fertilizer and pesticides, and increased carbon storage in soils [29]. In two test sites in Denmark, Manevski et al [30] demonstrated that fertilized perennial grasses show the reduction of nitrate leached by 70-80% and double biomass N in comparison to the conventional farming methods such as continuous maize or triticale or cereal crop rotation. These results are is achieved because perennial grasses have more extensive root systems than annual crops, thus ensuring also lower soil erosion, higher carbon sequestration, reduced groundwater pollution, and higher biodiversity [31].…”

Section: Definition Of the Key Modelling Problem And Variablesmentioning

confidence: 99%

Dynamic Sustainability Assessment Tool: Case Study of Green Biorefineries in Danish Agriculture

et al. 2020

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In this work, a novel, dynamic sustainability assessment tool is presented and validated in a case study. This tool combines two methods—system dynamics (SD) and temporal soil carbon modelling. The case study for sustainability analysis of Danish agriculture and green biorefineries supply chains in Denmark is used. The development of the Danish agriculture sector is simulated and assessed in relation to the ecosystem’s carrying capacity until 2050, defined as 1.4 livestock units per hectare. The results show that under the current development, the agriculture sector would exceed this carrying capacity shortly after 2030. The results obtained from the dynamic sustainability assessment tool show a more precise and less optimistic projection of future development than the assessment using constant soil carbon modelling values only. The study, therefore, suggests that the use of the temporal aspects in the sustainability assessment should be included and further developed.

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“…Options for achieving beneficial LUC through perennialization can provide opportunities to reduce land use impacts while achieving high biomass yields. The biomass can then be refined to multiple products, including biofuels and animal feed, hence substituting conventional (cultivated) feed and reducing grazing requirements (Egeskog et al, 2011;Larsen et al, 2017;Manevski et al, 2017Manevski et al, , 2018Solati et al, 2018;Sparovek et al, 2007). Such options can help maintain or increase agricultural production in a region while limiting environmental impacts, or reduce imports of agricultural commodities that are associated with negative impacts where they are produced.…”

Section: Policy Considerationsmentioning

confidence: 99%

Beneficial land use change: Strategic expansion of new biomass plantations can reduce environmental impacts from EU agriculture

Englund¹,

Börjesson²,

Berndes³

et al. 2019

Preprint

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Society faces the double challenge of increasing biomass production to meet the future demands for food, materials and bioenergy, while addressing negative impacts of current (and future) land use. In the discourse, land use change (LUC) has often been considered as negative, referring to impacts of deforestation and expansion of biomass plantations. However, strategic establishment of suitable perennial production systems in agricultural landscapes can mitigate environmental impacts of current crop production, while providing biomass for the bioeconomy. Here, we explore the potential for such “beneficial LUC” in EU28. First, we map and quantify the degree of accumulated soil organic carbon losses, soil loss by wind and water erosion, nitrogen emissions to water, and recurring floods, in ∼81.000 individual landscapes in EU28. We then estimate the effectiveness in mitigating these impacts through establishment of perennial plants, in each landscape. The results indicate that there is a substantial potential for effective impact mitigation. Depending on criteria selection, 10–46% of the land used for annual crop production in EU28 is located in landscapes that could be considered priority areas for beneficial LUC. These areas are scattered all over Europe, but there are notable “hot-spots” where priority areas are concentrated, e.g., large parts of Denmark, western UK, The Po valley in Italy, and the Danube basin. While some policy developments support beneficial LUC, implementation could benefit from attempts to realize synergies between different Sustainable Development Goals, e.g., “Zero hunger”, “Clean water and sanitation”, “Affordable and Clean Energy”, “Climate Action”, and “Life on Land”.

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Nitrogen balances of innovative cropping systems for feedstock production to future biorefineries

Cited by 45 publications

References 46 publications

Inclusion of intensively manipulated silage in total mixed ration to growing pigs – influence on silage consumption, nutrient digestibility and pig behaviour

Inclusion of intensively manipulated silage in total mixed ration to growing pigs – influence on silage consumption, nutrient digestibility and pig behaviour

Dynamic Sustainability Assessment Tool: Case Study of Green Biorefineries in Danish Agriculture

Beneficial land use change: Strategic expansion of new biomass plantations can reduce environmental impacts from EU agriculture

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