About: Differences in available phosphorus evaluated by soil tests in relation to detection by colorimetric and ICP-AES techniques

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Differences in the evaluation of soil phosphorus status by three soil tests (Mehlich 3, extraction with NH4-acetate and water extraction) were tested on 63 agricultural soils with different agrochemical characteristics. The median of P-supply in soils determined by soil tests was considerably different. Compared to the colorimetric detection of water extraction of soils the median of the NH4-acetate test showed 2.2 times higher values and in Mehlich 3 test the values were 34.8 times higher. The largest difference between the end-point analytical P-determination was observed in the soil test of water extraction. The median of the values determined by ICP-AES was higher by 47%. In NH4-acetate soil test the median of the measured phosphorus was higher by 12% and in Mehlich 3 by 7%. Differences of P-concentrations determined by colorimetry and by ICP-AES increased as P-supply in soils decreased. When the supply of “available” phosphorus in soil is given, it is always necessary to specify the used soil tes Differences in the evaluation of soil phosphorus status by three soil tests (Mehlich 3, extraction with NH4-acetate and water extraction) were tested on 63 agricultural soils with different agrochemical characteristics. The median of P-supply in soils determined by soil tests was considerably different. Compared to the colorimetric detection of water extraction of soils the median of the NH4-acetate test showed 2.2 times higher values and in Mehlich 3 test the values were 34.8 times higher. The largest difference between the end-point analytical P-determination was observed in the soil test of water extraction. The median of the values determined by ICP-AES was higher by 47%. In NH4-acetate soil test the median of the measured phosphorus was higher by 12% and in Mehlich 3 by 7%. Differences of P-concentrations determined by colorimetry and by ICP-AES increased as P-supply in soils decreased. When the supply of “available” phosphorus in soil is given, it is always necessary to specify the used soil tes (en)
Title	Differences in available phosphorus evaluated by soil tests in relation to detection by colorimetric and ICP-AES techniques Differences in available phosphorus evaluated by soil tests in relation to detection by colorimetric and ICP-AES techniques (en)
skos:prefLabel	Differences in available phosphorus evaluated by soil tests in relation to detection by colorimetric and ICP-AES techniques Differences in available phosphorus evaluated by soil tests in relation to detection by colorimetric and ICP-AES techniques (en)
skos:notation	RIV/00027006:_____/10:00001165!RIV11-MZE-00027006
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(QH82281)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Matula, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Výzkumný ústav rostlinné výroby, v.v.i.
http://linked.open...dnocenehoVysledku	254351
http://linked.open...ai/riv/idVysledku	RIV/00027006:_____/10:00001165
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Mehlich 3; NH4-acetate extraction; water extraction; phosphorus; colorimetry; ICP-AES technique (en)
http://linked.open.../riv/klicoveSlovo	phosphorus colorimetry water extraction ICP-AES technique Mehlich 3 NH4-acetate extraction
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[250E182FD0FD]
http://linked.open...i/riv/nazevZdroje	Plant, Soil and Environment
http://linked.open...in/vavai/riv/obor	DF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Innovative control of phosphorus status in agricultural soils from ecological aspects of frugal using natural resources
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	56
http://linked.open...iv/tvurceVysledku	Matula, Jiří
http://linked.open...ain/vavai/riv/wos	000280267800007
issn	1214-1178
number of pages	8 (xsd:int)

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