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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
07/07/1995 |
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Data da última atualização: |
07/07/1995 |
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Autoria: |
BURESH, R. J.; AUSTIN, E. R.; CRASWELL, E. T. |
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Afiliação: |
Agro-Economic Division, International Fertilizer Development Center, Muscle Shoais, Alabama 35660,USA. |
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Título: |
Analytical methods in N research. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Fertilizer Research, V.3, P.37-62, 1982. |
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Idioma: |
Inglês |
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Conteúdo: |
Although the stable isotope N is an indispensable tool in research to trace the fate of fertilizer nitrogen in soil/plant systems, the analytical methods used in this research are time consuming and prone to many erros. This paper outlines the methods used in an international program of nitrogen research coordinated by the International Fertilizer Development Center (IFDC). The different steps in the digestion, distillation, and isotope ratio analysis of N-labeled soils, plant material, and fertilizers are described. Details on the use of a series of controls to check the precision and accuracy of the methods are also given. It is hoped that this comprehensive description of procedures will encourage expanded and proper use of N. |
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Palavras-Chave: |
Ammonium-n; Mass spectrometer; Nitrate-n. |
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Thesaurus Nal: |
distillation; fertilizers; nitrogen; urea. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01288naa a2200229 a 4500
001 1646647
005 1995-07-07
008 1982 bl --- 0-- u #d
100 1 $aBURESH, R. J.
245 $aAnalytical methods in N research.
260 $c1982
520 $aAlthough the stable isotope N is an indispensable tool in research to trace the fate of fertilizer nitrogen in soil/plant systems, the analytical methods used in this research are time consuming and prone to many erros. This paper outlines the methods used in an international program of nitrogen research coordinated by the International Fertilizer Development Center (IFDC). The different steps in the digestion, distillation, and isotope ratio analysis of N-labeled soils, plant material, and fertilizers are described. Details on the use of a series of controls to check the precision and accuracy of the methods are also given. It is hoped that this comprehensive description of procedures will encourage expanded and proper use of N.
650 $adistillation
650 $afertilizers
650 $anitrogen
650 $aurea
653 $aAmmonium-n
653 $aMass spectrometer
653 $aNitrate-n
700 1 $aAUSTIN, E. R.
700 1 $aCRASWELL, E. T.
773 $tFertilizer Research, V.3, P.37-62, 1982.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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