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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  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.4032399", 
  "container_title": "Agronomy", 
  "language": "eng", 
  "title": "Long-Term Yield and Quality Performance of Perennial Energy Grasses (Agropyron spp.) on Marginal Land", 
  "issued": {
    "date-parts": [
  "abstract": "<p>The cultivation of perennial grasses is one of the most desirable alternatives as energy&nbsp;feedstock, but it is dicult to achieve competitive yields under Mediterranean marginal conditions.&nbsp;The aim of this study was to assess the performance of three cool-season grasses (Agropyron spp.)&nbsp;from an agronomic and energetic point of view by comparing the dry matter (DM) yields, rain use<br>\neciency, chemical composition, and biomass quality over an eight-year period in Spain under&nbsp;marginal rainfed conditions. The tall wheatgrass (Agropyron elongatum (Host) Beauv.) cultivars, Alkar&nbsp;(4.8 Mg DMha\udbc0\udc001) and Jose (4.7 Mg DMha\udbc0\udc001), achieved the&nbsp;highest yields. Productions below 0.5 Mg&nbsp;DMha\udbc0\udc001 were obtained when rainfall was lower than 150 mm between March and June. The biomass&nbsp;obtained from the tested grasses showed relatively high contents of ash, silicon, and alkali elements.&nbsp;Net calorific values ranged between 16.7 and 18.5 MJkg\udbc0\udc001 db. Di erences in the composition among&nbsp;species and cultivars are not likely to a ect their combustion behavior from a practical point of view.&nbsp;The ash content, as well as the concentrations of K, S, Na, and Cl, tended to decrease over the years.&nbsp;The results o ered would be very useful for the implementation of this type of crop in marginal land.</p>", 
  "author": [
      "family": "Ciria, C. S."
      "family": "Barro, R."
      "family": "Sanz, M."
      "family": "Ciria, P."
  "page": "1051", 
  "volume": "2020", 
  "version": "V1", 
  "type": "article-journal", 
  "issue": "10", 
  "id": "4032399"
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