. . "6"^^ . "Autumn and spring Nmin contents and requirements of Nitrate Directive in Czech Republic" . "[6B1D43C54C3B]" . "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 Czech cl"@en . "Krej\u010Dov\u00E1, Jana" . "Obsah miner\u00E1ln\u00EDho dus\u00EDku na podzim a na ja\u0159e a po\u017Eadavky nitr\u00E1tov\u00E9 sm\u011Brnice v \u010Cesk\u00E9 republice"@cs . . "RIV/00027006:_____/04:698" . . "6"^^ . . . . "459;460" . "mineral nitrogen; Nitrate Directive"@en . . "RIV/00027006:_____/04:698!RIV08-MZE-00027006" . "V roce 2003 byla p\u0159evedena Nitr\u00E1tov\u00E1 sm\u011Brnice (91/676/EEC) do \u010Desk\u00E9ho z\u00E1konod\u00E1rstv\u00ED. Z\u00E1sady spr\u00E1vn\u00E9 zem\u011Bd\u011Blsk\u00E9 praxe a Ak\u010Dn\u00ED program nespecifikuje limity obsahu nitr\u00E1tov\u00E9ho dus\u00EDku v p\u016Fd\u011B. Stanoven\u00ED limit\u016F hnojiv, chl\u00E9vsk\u00E9ho hnoje a kejdy pou\u017E\u00EDvan\u00FDch v osevn\u00EDch sledech je zam\u011B\u0159eno na omezen\u00ED vysok\u00FDch d\u00E1vek hnojiv napodzim. N\u011Bkter\u00E9 aktivity zam\u011B\u0159en\u00E9 na vyhodnocen\u00ED Ak\u010Dn\u00EDho programu byly zapo\u010Daty v ned\u00E1vn\u00E9 dob\u011B. Na osmi farm\u00E1ch byly na podzim a na ja\u0159e v letech 2001 a\u017E 2003 odeb\u00EDr\u00E1ny vzorky p\u016Fdy a zji\u0161\u0165ov\u00E1ny obsahy nitr\u00E1tov\u00E9ho dus\u00EDku za \u00FA\u010Delem stanoven\u00ED rizika proplaven\u00ED dus\u00EDku v meziporostn\u00EDm obdob\u00ED. Obsah miner\u00E1ln\u00EDho dus\u00EDku zji\u0161t\u011Bn\u00FD na podzim se pohyboval od 1 do 50 mg N na 1 kg p\u016Fdy (200 kg N na 1 hektar). Vysok\u00FD obsah dus\u00EDku byl zji\u0161t\u011Bn podle o\u010Dek\u00E1v\u00E1n\u00ED po p\u011Bstov\u00E1n\u00ED jetele, hnojen\u00ED chl\u00E9vsk\u00FDm hnojem a kejdou, ale nap\u0159\u00EDklad tak\u00E9 po opakovan\u00E9m p\u011Bstov\u00E1n\u00ED p\u0161enice. V n\u011Bkter\u00FDch p\u0159\u00EDpadech rizikov\u00E9 plodiny uk\u00E1zaly na men\u0161\u00ED obsah miner\u00E1ln\u00EDho dus\u00EDku v p\u016Fd\u011B. Na ja\u0159e byl obsah Nmin v p\u016Fd\u011B podstatn\u011B men\u0161\u00ED ne\u017E na"@cs . "European agriculture in a global context" . . . "Autumn and spring Nmin contents and requirements of Nitrate Directive in Czech Republic" . "P(QC1316)" . "87-7611-062-1" . . . "Haberle, Jan" . . "Obsah miner\u00E1ln\u00EDho dus\u00EDku na podzim a na ja\u0159e a po\u017Eadavky nitr\u00E1tov\u00E9 sm\u011Brnice v \u010Cesk\u00E9 republice"@cs . . . "Autumn and spring Nmin contents and requirements of Nitrate Directive in Czech Republic"@en . "Frederickberg" . "Svoboda, Pavel" . "R\u016F\u017Eek, Pavel" . . "2004-07-11+02:00"^^ . "555718" . "\u0160imon, Tom\u00E1\u0161" . "2"^^ . . "Autumn and spring Nmin contents and requirements of Nitrate Directive in Czech Republic"@en . "Koda\u0148" . "Kus\u00E1, Helena" . "Koda\u0148" . . "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 Czech cl" . . .