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- W2033161708 abstract "The nitrogen content of humic and fulvic acid fractions recovered in parallel with sodium hydroxide and a mixture of sodium hydroxide and sodium pyrophosphate from a volcanic soil under pine was determined. Despite minor differences for some horizons, the values found by the two methods were similar. Furthermore, the ratio between the N contents in the humic and fulvic acid fractions (Nh : Nf) was independent of the nature of the extractant. This fact and the facility of the determination suggest investigating if the Nh: Nf ratio can be used as indicator for the quality of soil organic matter.Stickstoffgehalt in Huminsaure- und Fulvosaurefraktionen aus einem vulkanischen Boden unter Kiefer: Wiederfindungseffizienz von zwei ExtraktionsmittelnDer Stickstoffgehalt von Huminsaure- und Fulvosaurefraktionen wurde parallel in Natriumhydroxid- und Natriumhydroxid/Natriumpyrophosphat-Extrakten aus einem vulkanischen Boden unter Kiefer ermittelt. Mit Ausnahme von einigen leichten Unterschieden in einzelnen Bodenhorizonten waren die Werte fur beide Extrakte ahnlich. Das Verhaltnis zwischen den Stickstoffgehalten in den Huminsaure- und Fulvosaurefraktionen (Nh : Nf) erscheint unabhangig vom Extraktionsmittel. Diese Tatsache und die Moglichkeit, das Verhaltnis zu ermitteln, empfiehlt zu untersuchen, ob das Nh : Nf-Verhaltnis als Indikator fur die Qualitat der organischen Bodensubstanz verwendet werden kann." @default.
- W2033161708 created "2016-06-24" @default.
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- W2033161708 date "2001-06-01" @default.
- W2033161708 modified "2023-09-24" @default.
- W2033161708 title "Nitrogen in humic and fulvic acid fractions from a volcanic soil under pine: recovery efficiency of two extractants" @default.
- W2033161708 doi "https://doi.org/10.1002/1522-2624(200106)164:3<267::aid-jpln267>3.0.co;2-x" @default.
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