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  <titleInfo>
    <title>Predicting economic optimum and nitrogen balance in the ley - ruminant system</title>
  </titleInfo>
  <name type="personal">
    <namePart>Torssell, B. W. R.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Eagerberg, B.</namePart>
  </name>
  <typeOfResource/>
  <originInfo>
    <place>
      <placeTerm type="text">Uppasala</placeTerm>
    </place>
    <publisher>Department of Crop Production Science</publisher>
    <dateIssued>1990</dateIssued>
    <dateCreated>1990</dateCreated>
    <issuance/>
  </originInfo>
  <physicalDescription>
    <extent>48p. 24cm</extent>
  </physicalDescription>
  <subject>
    <topic>Production efficient</topic>
  </subject>
  <subject>
    <topic>Agriculture</topic>
  </subject>
  <classification authority="ddc">338.16 TOR</classification>
  <relatedItem type="series">
    <titleInfo>
      <title>Crop ProductionScience 10</title>
    </titleInfo>
  </relatedItem>
  <identifier type="isbn">9157643490</identifier>
  <recordInfo/>
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