The recovery over several seasons of 15N-labelled fertilizer applied to Miscanthus×giganteus ranging from 1 to 3 years old

Christian, D. G.; Poulton, P. R.; Riche, A. B.; Yates, N. E.; Todd, A. D.

doi:10.1016/j.biombioe.2005.11.002

Cited by 60 publications

(46 citation statements)

References 17 publications

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“…Analysis of the pre-harvest GHG balance showed advantages of converting such grassland to Miscanthus [43], even without accounting for fossil fuel displacement. This analysis, did not, however, include application of N-fertilizer, which may become necessary on less fertile soil due to the annual export of nitrogen with the harvest [9]. Unfortunately, no experiments are available in Miscanthus to estimate carbon losses from planting and during establishment, or associated with the effect of different management practices, in former grassland sites.…”

Section: Discussionmentioning

confidence: 91%

Land Use Implications of Increased Biomass Production Identified by GIS-Based Suitability and Yield Mapping for Miscanthus in England

et al. 2009

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The need for climate change mitigation and to meet increasing energy demands has led to a rise in the land area under bioenergy crops in many countries. There are concerns that such large-scale land conversion will conflict with food production and impact on the environment. Perennial biomass crops could be grown on more marginal agricultural land. However, for sustainable solutions, biomass yields will need to be sufficient and the wider implications of land-use changes considered. Here, focusing on Miscanthus in England as an example, we combined an empirical model with GIS to produce a yield map and estimated regional energy generation potentials after masking out areas covered by environmental and socio-economic factors which could preclude the planting of energy crops. Agricultural land quality and the distributions of currently grown food crops were then taken into account. Results showed that: (i) regional contrasts occur in the importance of different factors affecting biomass planting; (ii) areas with the highest biomass yields co-locate with food producing areas on high grade land, and; (iii) when such high grade land and unsuitable areas are excluded, a policy-related scenario for increased planting on 350,000 ha utilised 4-28% (depending on the region) of lower grade land and would not necessarily greatly impact on UK food security. We conclude that the GIS-based yield and suitability mapping described here can help identify important issues in bioenergy generation potentials and land use implications at regional or finer spatial scales that would be missed in analyses at the national level.

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Section: Discussionmentioning

confidence: 91%

Land Use Implications of Increased Biomass Production Identified by GIS-Based Suitability and Yield Mapping for Miscanthus in England

et al. 2009

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“…Studies on the use of environmental resources have focused on the effect of water availability (Christian and Haase, 2001;Cosentino et al, 2007) and nitrogen availability (Lewandowski et al, 1995;Lewandowski and Kicherer, 1997;Lewandowski and Kauter, 2003;Christian et al, 2006;Lewandowski and Schmidt, 2006;Christian et al, 2008).…”

Section: Response Of Miscanthus To Stress Conditionsmentioning

confidence: 99%

Agronomic and physiological performances of different species ofMiscanthus, a major energy crop. A review

Zub¹,

Brancourt-Hulmel²

2010

Agron. Sustain. Dev.

142

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-The European Union recommends the use of lignocellulosic biomass to produce biofuels in order to reduce greenhouse gas emissions. Miscanthus × giganteus, a C 4 perennial and rhizomatous plant, has been identified as a good candidate for biomass production because of its high potential yield, of up to 49 t DM.ha −1 for autumn harvest and 26 t DM.ha −1 for winter harvest, under low input levels. Here, we review current knowledge on the biomass production in Europe of M × giganteus and its two parental species, M. sinensis and M. sacchariflorus, under different stress conditions. This review identifies two key areas where M. giganteus crops could be improved: (i) tolerance to frost during winter or early spring is essential, mainly in Northern Europe, in order to ensure overwintering and protect young shoots following early emergence. Susceptibility to winter frost at temperatures below −3.5• C for rhizomes and −8• C for young shoots of M. × giganteus can lead to significant plant losses and lower yields, and (ii) a good water supply is necessary to ensure good establishment rates and satisfactory biomass production. Reductions of up to 84% in above-ground dry matter production because of a lack of water for the autumn harvest, and up to 26% for the winter harvest have been observed. M. sinensis, which displays greater genetic variability than M. giganteus, will provide the necessary genetic resources for frost and water stress tolerance. It is also necessary to either identify genotypes among M. sinensis species that are able to produce an above-ground biomass yield close to the biomass production of M. giganteus under limited water supplies and/or low temperatures, or to generate new interspecific hybrids of M. giganteus with greater tolerance. Particular attention should be paid to nitrogen response; although no response to nitrogen supply has been observed in M. giganteus, M. sinensis produces higher levels of biomass with nitrogen inputs.Miscanthus / biomass production / chilling temperature / frost / nitrogen supply / water supply / improvement Abbreviations: DM, dry matter; WUE, water-use efficiency; NUE, nitrogen-use efficiency; RUE, radiation-use efficiency

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“…Most previous yield evaluations under various nitrogen fertilizer application rates for M. x giganteus were conducted in Central and Northern USA or Europe, where M. x giganteus is well-adapted [19,29,31,62]. It is still unclear about the effect of nitrogen fertilizer application rate on biomass yield of M. x giganteus in southern locations in the USA, where, based on the results from our first experiment, M. x giganteus is not well adapted.…”

Section: Discussionmentioning

confidence: 82%

Adaptation of C4 Bioenergy Crop Species to Various Environments within the Southern Great Plains of USA

et al. 2017

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Abstract:As highly productive perennial grasses are evaluated as bioenergy feedstocks, a major consideration is biomass yield stability. Two experiments were conducted to examine some aspects of yield stability for two biofuel species: switchgrass (Panicum vigratum L.) and Miscanthus x giganteus (Mxg). Biomass yields of these species were evaluated under various environmental conditions across the Southern Great Plains (SGP), including some sites with low soil fertility. In the first experiment, measured yields of four switchgrass ecotypes and Mxg varied among locations. Overall, plants showed optimal growth performance in study sites close to their geographical origins. Lowland switchgrass ecotypes and Mxg yields simulated by the ALMANAC model showed reasonable agreement with the measured yields across all study locations, while the simulated yields of upland switchgrass ecotypes were overestimated in northern locations. In the second experiment, examination of different N fertilizer rates revealed switchgrass yield increases over the range of 0, 80, or 160 kg N ha −1 year −1 , while Mxg only showed yield increases between the low and medium N rates. This provides useful insights to crop management of two biofuel species and to enhance the predictive accuracy of process-based models, which are critical for developing bioenergy market systems in the SGP.

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The recovery over several seasons of 15N-labelled fertilizer applied to Miscanthus×giganteus ranging from 1 to 3 years old

Cited by 60 publications

References 17 publications

Land Use Implications of Increased Biomass Production Identified by GIS-Based Suitability and Yield Mapping for Miscanthus in England

Land Use Implications of Increased Biomass Production Identified by GIS-Based Suitability and Yield Mapping for Miscanthus in England

Agronomic and physiological performances of different species ofMiscanthus, a major energy crop. A review

Adaptation of C4 Bioenergy Crop Species to Various Environments within the Southern Great Plains of USA

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