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| Description
| - The effect of water supply on the utilization of soil mineral nitrogen (Nmin) from top- and subsoil by winter wheat was studied on loamy clay soil in Praha-Ruzyně in the years 2004-2006. The water regime was differentiated from heading by covering plots with movable shelter during rain and with drip irrigation. Wheat was grown with no N and 200 kg N.ha-1 (N0 and N1, resp.). Water shortage during the period of grain formation reduced the utilization of Nmin supply in 0-90 cm in respective years by 64 kg, 20 kg and 69 kg N.ha-1 in N1 treatment, in comparison with rain-fed control, and by 91 kg, 25 kg and 98 kg N.ha-1 in comparison with irrigated treatment. In N0 treatment the reduction reached 18 kg N.ha-1 in 2004, and was under 5 kg N.ha-1 in 2005 and 2006. The reduced apparent utilization of Nmin supply under water shortage corresponded with decrease of N yield of shoots (correlation coefficient > 0.93 and 0.97 in N0 and N1, resp.), however, the slope of regression differed among experimental
- The effect of water supply on the utilization of soil mineral nitrogen (Nmin) from top- and subsoil by winter wheat was studied on loamy clay soil in Praha-Ruzyně in the years 2004-2006. The water regime was differentiated from heading by covering plots with movable shelter during rain and with drip irrigation. Wheat was grown with no N and 200 kg N.ha-1 (N0 and N1, resp.). Water shortage during the period of grain formation reduced the utilization of Nmin supply in 0-90 cm in respective years by 64 kg, 20 kg and 69 kg N.ha-1 in N1 treatment, in comparison with rain-fed control, and by 91 kg, 25 kg and 98 kg N.ha-1 in comparison with irrigated treatment. In N0 treatment the reduction reached 18 kg N.ha-1 in 2004, and was under 5 kg N.ha-1 in 2005 and 2006. The reduced apparent utilization of Nmin supply under water shortage corresponded with decrease of N yield of shoots (correlation coefficient > 0.93 and 0.97 in N0 and N1, resp.), however, the slope of regression differed among experimental (en)
- V polním pokusu s ozimou pšenicí byl v letech 2004-2006 sledován vliv odlišného vodního režimu na využití minerální dusíku z vrstev půdního profilu do hloubky 90 cm. Dostupnost vody byla diferencována v období růstu zrna zakrýváním porostu při dešti a kapkovou závlahou. Pokus měl dvě úrovně zásobení dusíkem, bez hnojení (N0) a 200 kg N.ha-1 (N1) aplikovaných na podzim (100 kg N.ha-1) a na jaře (40 kg a 60 kg N.ha-1). Odběr dusíku z různých vrstev půdy byl určen bilančně, na základě postupných odběrů vzorků půdy. Současně byl zjišťován odběr N nadzemními orgány rostlin pšenice, aby bylo možné odlišit vliv odběru N porostem a vliv dynamiky N v půdě v období zrání na pozorovaný obsah Nmin v půdním profilu. Vliv vodního režimu na obsah residuálního Nmin (po dosažení zralosti) v podorniční vrstvě 50-90 cm u nehnojené varianty (Obr.1) byl na hranici průkaznosti (P=0.011); ve vrstvě 0-50 cm a 0-90 cm byl vliv neprůkazný (P=0.65 a 0.054). Obdobně byl vliv ročníku a interakce ročníku a vrstvy půdy průkazn (cs)
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| Title
| - The effect of water supply during grain growth on the utilization of soil mineral nitrogen by winter wheat
- The effect of water supply during grain growth on the utilization of soil mineral nitrogen by winter wheat (en)
- Vliv zásobení vodou v průběhu růstu zrna na využití půdního minerálního dusíku ozimou pšenicí (cs)
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| skos:prefLabel
| - The effect of water supply during grain growth on the utilization of soil mineral nitrogen by winter wheat
- The effect of water supply during grain growth on the utilization of soil mineral nitrogen by winter wheat (en)
- Vliv zásobení vodou v průběhu růstu zrna na využití půdního minerálního dusíku ozimou pšenicí (cs)
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| skos:notation
| - RIV/00027006:_____/07:1928!RIV08-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
| - P(QF4176), Z(MZE0002700601)
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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:_____/07:1928
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - water regime; available nitrogen; soil profile; depletion; uptake; residual N; root system; wheat (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
| - Scientia Agriculturae Bohemica
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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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
| - Svoboda, Pavel
- Haberle, Jan
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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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| is http://linked.open...avai/riv/vysledek
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