<?xml version="1.0"?>
<oai_dc:dcCollection xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <oai_dc:dc>
    <dc:title xmlns:dc="http://purl.org/dc/elements/1.1/">A comparison of the isotope recovery and difference methods for determining nitrogen fertilizer efficiency</dc:title>
    <dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">
   K. Harmsen and J.T. Moraghan.
  </dc:creator>
    <dc:type xmlns:dc="http://purl.org/dc/elements/1.1/">text</dc:type>
    <dc:language xmlns:dc="http://purl.org/dc/elements/1.1/">Ind</dc:language>
    <dc:description xmlns:dc="http://purl.org/dc/elements/1.1/">Repr. from : Plant Soil, 105(1988):55-67.</dc:description>
    <dc:description xmlns:dc="http://purl.org/dc/elements/1.1/">Repr. from : Plant Soil, 105(1988):55-67.</dc:description>
    <dc:subject xmlns:dc="http://purl.org/dc/elements/1.1/">NITROGEN FERTILIZERS</dc:subject>
    <dc:subject xmlns:dc="http://purl.org/dc/elements/1.1/">RADIOISOTOPES</dc:subject>
  </oai_dc:dc>
</oai_dc:dcCollection>