Obsah minerálního dusíku na podzim a na jaře a požadavky nitrátové směrnice v České republice

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F04%3A698" target="_blank" >RIV/00027006:_____/04:698 - 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

Autumn and spring Nmin contents and requirements of Nitrate Directive in Czech Republic

Popis výsledku v původním jazyce

In 2003 the transposition of Nitrate Directive (91/676/EEC) into Czech legislation was completed. Czech CAP and Action programme do not specify any limits of nitrate content in soil. Limitations on fertilizers, manure and slurry use and crop rotations are aimed at decreasing high nitrate levels in autumn. Several activities aimed at evaluation of action programmes have started recently. In autumn and spring 2001 to 2003 fields in eight farms were sampled for Nmin (N03-N+NH4-N) to evaluate risk of nitrate leaching during inter-growth period. The Nmin contents at autumn ranged from 1 mg to over 50 mg N kg -1 soil, i.e. over 200 kg N.ha-1. High nitrate concentrations were found, as expected, after so called risk crops as clover and crops fertilized with manure or slurry but for example also after wheat following wheat. In some cases risk crops showed a low content of Nmin. In spring, Nmin content was mostly substantially lower than in autumn. The simple leaching equation showed that under

Název v anglickém jazyce

Autumn and spring Nmin contents and requirements of Nitrate Directive in Czech Republic

Popis výsledku anglicky

In 2003 the transposition of Nitrate Directive (91/676/EEC) into Czech legislation was completed. Czech CAP and Action programme do not specify any limits of nitrate content in soil. Limitations on fertilizers, manure and slurry use and crop rotations are aimed at decreasing high nitrate levels in autumn. Several activities aimed at evaluation of action programmes have started recently. In autumn and spring 2001 to 2003 fields in eight farms were sampled for Nmin (N03-N+NH4-N) to evaluate risk of nitrate leaching during inter-growth period. The Nmin contents at autumn ranged from 1 mg to over 50 mg N kg -1 soil, i.e. over 200 kg N.ha-1. High nitrate concentrations were found, as expected, after so called risk crops as clover and crops fertilized with manure or slurry but for example also after wheat following wheat. In some cases risk crops showed a low content of Nmin. In spring, Nmin content was mostly substantially lower than in autumn. The simple leaching equation showed that under

Druh

D - Stať ve sborníku

CEP obor

GD - Hnojení, závlahy, zpracování půdy

OECD FORD obor

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Projekt

<a href="/cs/project/QC1316" target="_blank" >QC1316: Prognóza výnosů vybraných zemědělských plodin</a><br>

Návaznosti

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

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název statě ve sborníku

European agriculture in a global context

ISBN

87-7611-062-1

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

459-460

Název nakladatele

Frederickberg

Místo vydání

Kodaň

Místo konání akce

Kodaň

Datum konání akce

11. 7. 2004

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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