Journal article Open Access

Long-Term Yield and Quality Performance of Perennial Energy Grasses (Agropyron spp.) on Marginal Land

Ciria, C. S.; Barro, R.; Sanz, M.; Ciria, P.


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        <foaf:name>Ciria, C. S.</foaf:name>
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        <foaf:name>Sanz, M.</foaf:name>
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    <dct:title>Long-Term Yield and Quality Performance of Perennial Energy Grasses (Agropyron spp.) on Marginal Land</dct:title>
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    <dcat:keyword>cool-season grasses;</dcat:keyword>
    <dcat:keyword>alternative crops;</dcat:keyword>
    <dcat:keyword>tall wheatgrass</dcat:keyword>
    <dcat:keyword>crested wheatgrass;</dcat:keyword>
    <dcat:keyword>Siberian wheatgrass</dcat:keyword>
    <dcat:keyword>energy crops</dcat:keyword>
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        <foaf:name>European Commission</foaf:name>
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    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2020-06-21</dct:issued>
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    <dct:description>&lt;p&gt;The cultivation of perennial grasses is one of the most desirable alternatives as energy&amp;nbsp;feedstock, but it is dicult to achieve competitive yields under Mediterranean marginal conditions.&amp;nbsp;The aim of this study was to assess the performance of three cool-season grasses (Agropyron spp.)&amp;nbsp;from an agronomic and energetic point of view by comparing the dry matter (DM) yields, rain use&lt;br&gt; eciency, chemical composition, and biomass quality over an eight-year period in Spain under&amp;nbsp;marginal rainfed conditions. The tall wheatgrass (Agropyron elongatum (Host) Beauv.) cultivars, Alkar&amp;nbsp;(4.8 Mg DMha􀀀1) and Jose (4.7 Mg DMha􀀀1), achieved the&amp;nbsp;highest yields. Productions below 0.5 Mg&amp;nbsp;DMha􀀀1 were obtained when rainfall was lower than 150 mm between March and June. The biomass&amp;nbsp;obtained from the tested grasses showed relatively high contents of ash, silicon, and alkali elements.&amp;nbsp;Net calorific values ranged between 16.7 and 18.5 MJkg􀀀1 db. Di erences in the composition among&amp;nbsp;species and cultivars are not likely to a ect their combustion behavior from a practical point of view.&amp;nbsp;The ash content, as well as the concentrations of K, S, Na, and Cl, tended to decrease over the years.&amp;nbsp;The results o ered would be very useful for the implementation of this type of crop in marginal land.&lt;/p&gt;</dct:description>
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    <dct:title>Marginal lands for Growing Industrial Crops: Turning a burden into an opportunity</dct:title>
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