The content of phosphorus in the soil in the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F18%3A00004635" target="_blank" >RIV/00027006:_____/18:00004635 - 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

The content of phosphorus in the soil in the Czech Republic

Popis výsledku v původním jazyce

Phosphorus (P) is one of the three nutrients generally added to soil as fertilizer. The beneficial effect of phosphorus on crop yields has been known for well over a century. Nevertheless, when phosphorus enters surface waters in substantial amounts it becomes a pollutant, contributing to the excessive growth of algae, thus, to the accelerated eutrophication of lakes and reservoirs. Simply eliminating phosphorus additions might bring marginal lands into production, increasing the amount of erosion on such lands. Practices to reduce phosphorus loadings must be based on an understanding of phosphorus sources, forms of phosphorus added to soils and the availability of phosphorus in soils. Presently in the Czech Republic there are no problems with an excess of the content of phosphorus in soils, on the contrary, in some parts of the Czech Republic its lack is detected. Long term system of agrochemical soil testing in the Czech Republic is running since 1960s. Extraction procedure Mehlich 3 is the official analytical method currently used for the determination of the content of available phosphorus. It turned out that the determination of phosphorus by Mehlich 3 in soils having a pH above 7.2 is not completely accurate. Based on the results obtained by the Mehlich 3 method on the content of phosphorus in the soil, maps of the content of phosphorus in the soil were compiled in the Czech Republic.

Název v anglickém jazyce

The content of phosphorus in the soil in the Czech Republic

Popis výsledku anglicky

Phosphorus (P) is one of the three nutrients generally added to soil as fertilizer. The beneficial effect of phosphorus on crop yields has been known for well over a century. Nevertheless, when phosphorus enters surface waters in substantial amounts it becomes a pollutant, contributing to the excessive growth of algae, thus, to the accelerated eutrophication of lakes and reservoirs. Simply eliminating phosphorus additions might bring marginal lands into production, increasing the amount of erosion on such lands. Practices to reduce phosphorus loadings must be based on an understanding of phosphorus sources, forms of phosphorus added to soils and the availability of phosphorus in soils. Presently in the Czech Republic there are no problems with an excess of the content of phosphorus in soils, on the contrary, in some parts of the Czech Republic its lack is detected. Long term system of agrochemical soil testing in the Czech Republic is running since 1960s. Extraction procedure Mehlich 3 is the official analytical method currently used for the determination of the content of available phosphorus. It turned out that the determination of phosphorus by Mehlich 3 in soils having a pH above 7.2 is not completely accurate. Based on the results obtained by the Mehlich 3 method on the content of phosphorus in the soil, maps of the content of phosphorus in the soil were compiled in the Czech Republic.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/QJ1530171" target="_blank" >QJ1530171: Rozšíření využitelnosti a aktualizace kategorií pro stanovení obsahu přístupných makro a mikroživin v půdě v rámci zajištění trvale udržitelné úrodnosti a produkční schopnosti zemědělských půd</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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