Problem of the soil calcium status with respect to Mehlich III extraction solution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26788462%3A_____%2F09%3A%230000232" target="_blank" >RIV/26788462:_____/09:#0000232 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Problem of the soil calcium status with respect to Mehlich III extraction solution

Popis výsledku v původním jazyce

The soil calcium, especially it?s mobile and exchangeable forms, is one of the yield making elements. It controls soil sorption complex and its exchange reactions in soil environment, forms and stabilizes favourable soil structure and its pH value. Due to a relatively very close relationship between soil pH value and Ca-Mehlich-3 content we have attempted to employ this relation to an estimation of some reasonable sufficient soil Ca concentration. We have found the inflection point of the polynomial near to the pH value 5.6 and the corresponding value of Ca saturation extent is approximately 60%. Taking into a consideration a fact that above soil pH value 5.5 is a harmful influence of aluminium active form negligible, the corresponding value for Mehlich-3-Ca form for soil pH value 5.6 is approximately 1,400 mg.kg-1. Poster presentation for European Geosciences Union ? General Assembly; 19.-24.4.2009, Wien. Published in: Geophysical Research Abstracts, vol.11, EGU2009-5937, 2009, ISSN 1

Název v anglickém jazyce

Problem of the soil calcium status with respect to Mehlich III extraction solution

Popis výsledku anglicky

The soil calcium, especially it?s mobile and exchangeable forms, is one of the yield making elements. It controls soil sorption complex and its exchange reactions in soil environment, forms and stabilizes favourable soil structure and its pH value. Due to a relatively very close relationship between soil pH value and Ca-Mehlich-3 content we have attempted to employ this relation to an estimation of some reasonable sufficient soil Ca concentration. We have found the inflection point of the polynomial near to the pH value 5.6 and the corresponding value of Ca saturation extent is approximately 60%. Taking into a consideration a fact that above soil pH value 5.5 is a harmful influence of aluminium active form negligible, the corresponding value for Mehlich-3-Ca form for soil pH value 5.6 is approximately 1,400 mg.kg-1. Poster presentation for European Geosciences Union ? General Assembly; 19.-24.4.2009, Wien. Published in: Geophysical Research Abstracts, vol.11, EGU2009-5937, 2009, ISSN 1

Druh

O - Ostatní výsledky

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

<a href="/cs/project/LA%20290" target="_blank" >LA 290: Mezinárodní unie věd o půdě (IUSS) a Evropská společnost pro ochranu půdy (ESSC)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů