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| Description
| - In an incubation experiment with 36 soils we tested the influence of application of 3.3 g of CaSO4.2H2O per kg of soil on extractability of nutrients (P, K, Mg, Ca, Mn, B and S). After 134-day incubation of gypsum-treated soils the soils were extracted with water (1:5, w/v), 0.5 M ammonium acetate with NH4F addition (pH 7) and by Mehlich 3 method. An ICP-technique was used for nutrient detection and colorimetry on a SKALAR analyser was employed to determine phosphates and sulphates. The most interestingresults were measured in phosphorus. P concentration was markedly lower in the H2O extract after gypsum treatment, on average by 69% in ICP detection and by 58% in colorimetric detection of phosphates. A significant depression of P concentration was also measured in the acetate extract, but it was considerably lower (11% in ICP detection, 14% in colorimetry). On the contrary, in Mehlich 3 extraction the concentration after gypsum treatment was higher on average by 31% in ICP detection while in phospha
- In an incubation experiment with 36 soils we tested the influence of application of 3.3 g of CaSO4.2H2O per kg of soil on extractability of nutrients (P, K, Mg, Ca, Mn, B and S). After 134-day incubation of gypsum-treated soils the soils were extracted with water (1:5, w/v), 0.5 M ammonium acetate with NH4F addition (pH 7) and by Mehlich 3 method. An ICP-technique was used for nutrient detection and colorimetry on a SKALAR analyser was employed to determine phosphates and sulphates. The most interestingresults were measured in phosphorus. P concentration was markedly lower in the H2O extract after gypsum treatment, on average by 69% in ICP detection and by 58% in colorimetric detection of phosphates. A significant depression of P concentration was also measured in the acetate extract, but it was considerably lower (11% in ICP detection, 14% in colorimetry). On the contrary, in Mehlich 3 extraction the concentration after gypsum treatment was higher on average by 31% in ICP detection while in phospha (en)
- V inkubačním experimentu se 36 půdami byl ověřován vliv aplikace 3,3 g CaSO4 . 2 H2O . kg-1 , (SV), půdy na extrahovatelnost živin (P, K, Mg, Ca, Mn, B a S). Po 134 dnech inkubace půd se SV byly půdy extrahovány vodou (1:5; w/v), 0,5 M octanem amonným spřídavkem NH4F (pH 7) a postupem Mehlich 3. K detekci živin byla použita ICP-technika a pro stanovení fosfátů a síranů kolorimetrie na analyzátoru SKALAR. Nejzajímavější výsledky byly zjištěny u fosforu. V H2O-extraktu půd po aplikaci SV byla výrazně nižší koncentrace P, v průměru o 69 % při ICP-detekci a o 58 % při kolorimetrické detekci fosfátů. Rovněž v acetátovém extraktu došlo k průkazné depresi koncentrace P, ale podstatně menší (11 % ICP-detekce, 14 % kolorimetrie). Naopak u extrakce Mehlich 3byla po aplikaci SV koncentrace v průměru větší o 31 % při ICP-detekci, u fosfátů rozdíly nebyly průkazné. Z výsledků je zřejmé, že při posuzování výživného stavu půd je třeba uvádět metodu extrakce půdy včetně způsobu analytického stanovení živiny. (cs)
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| Title
| - Influence of gypsum treatment on extractability of nutrients from soils
- Influence of gypsum treatment on extractability of nutrients from soils (en)
- Vliv síranu vápenatého na extrahovatelnost živin z půdy (cs)
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| skos:prefLabel
| - Influence of gypsum treatment on extractability of nutrients from soils
- Influence of gypsum treatment on extractability of nutrients from soils (en)
- Vliv síranu vápenatého na extrahovatelnost živin z půdy (cs)
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| skos:notation
| - RIV/00027006:_____/05:######47!RIV06-MZE-00027006
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00027006:_____/05:######47
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - gypsum treatment of soils, soil tests, phosphorus, potassium, magnesium, calcium, manganese, boron, sulphur (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Plant, Soil and Environment
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Matula, Jiří
- Pechová, Miroslav
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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