Autor: |
Rees, Dr Robert, Baddeley, Dr John, Bingham, Dr Ian, Watson, Dr Christine |
Jazyk: |
angličtina |
Rok vydání: |
2006 |
Předmět: |
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Popis: |
A field experiment was undertaken to measure the uptake by spring barley of nitrogen at different distances from a boundary with either red or white clover. Clover plants at the boundary with the barley were labelled with a foliar 15N application. Its distance from the clover boundary did not signifi-cantly affect nitrogen uptake by the barley. However measurements of the isotopic label showed a transfer of 2.5% of the N from the red clover and 1% of the N from the white clover to the barley over short dis-tances. The study has indicated that transfer of N between clover and cereals is spatially limited and at least within the first year, it is unlikely to provide agronomically significant supplies of N |
Databáze: |
OpenAIRE |
Externí odkaz: |
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