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Description
  • V inkubačním pokusu byla u vybraných půdních vzorků z dlouhodobého polního pokusu (varianty: bez hnojení, NPK, hnůj, hnůj+NPK, bloky III, IV a B s různým osevním postupem) opakovaně měřena potenciální nitrogenázová aktivita (PNA) jako ukazatel nesymbiotické fixace dusíku. Měření byla provedena na podzim v letech 2001-2003. Současně byly založeny hydroponické pokusy s hrachem za účelem stanovení celkové nitrogenázové aktivity (TNA) jako ukazatele symbiotické fixace dusíku. Stejné vzorky půd jako v prvním případě sloužily jako přirozené inokulum. Vysoké hodnoty PNA byly zjištěny u variant hnojených hnojem ve třech termínech odběru u všech bloků. Nízké hodnoty PNA byly naopak zaznamenány u variant hnojených minerálními hnojivy. V půdních vzorcích všech variant byly identifikovány bakterie rodu Azotobacter. V hydroponickém pokusu s hrachem byly nejvyšší hodnoty TNA zjištěny u variant B 284 (hnůj+NPK) a III 254 (hnůj+NPK) v roce 2001 a B 214 (hnůj) a III 214 (hnůj) v roce 2002.Rozdíly oproti ostatním varia (cs)
  • Non-symbiotic nitrogen fixation (PNA) of soil samples originated from long-term experiment was determined in laboratory experiments (2001-2003). The symbiotic nitrogen fixation (TNA) of the same soil samples was evaluated in hydroponic experiments with pea, where the soil saples were used as a natural inoculum. The high values of PNA were found in variants fertilized by FYM in all three blocks and all experiments. Simultaneously variants fertilized by mineral NPK reached the low values of PNA. In the hydroponic experiment with pea, the highest values values of TNA were found in the variants FYM+NPK in 2001 and FYM in 2002. Plants inoculated by soil from these variants formed also high amount of nodules and plant biomass.
  • Non-symbiotic nitrogen fixation (PNA) of soil samples originated from long-term experiment was determined in laboratory experiments (2001-2003). The symbiotic nitrogen fixation (TNA) of the same soil samples was evaluated in hydroponic experiments with pea, where the soil saples were used as a natural inoculum. The high values of PNA were found in variants fertilized by FYM in all three blocks and all experiments. Simultaneously variants fertilized by mineral NPK reached the low values of PNA. In the hydroponic experiment with pea, the highest values values of TNA were found in the variants FYM+NPK in 2001 and FYM in 2002. Plants inoculated by soil from these variants formed also high amount of nodules and plant biomass. (en)
Title
  • Nitrogenase activity in soil samples from selected plots of long-term experiments
  • Nitrogenase activity in soil samples from selected plots of long-term experiments (en)
  • Aktivita nitrogenázy ve vzorcích půdy z vybranýyh pokusných parcel dlouhodobých pokusů. (cs)
skos:prefLabel
  • Nitrogenase activity in soil samples from selected plots of long-term experiments
  • Nitrogenase activity in soil samples from selected plots of long-term experiments (en)
  • Aktivita nitrogenázy ve vzorcích půdy z vybranýyh pokusných parcel dlouhodobých pokusů. (cs)
skos:notation
  • RIV/00027006:_____/04:00014056!RIV/2005/MZE/M01005/N
http://linked.open.../vavai/riv/strany
  • 11-14
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MZE0002700601)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 576286
http://linked.open...ai/riv/idVysledku
  • RIV/00027006:_____/04:00014056
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • long-term field experiments, non-symbiotic nitrogen fixation, symbiotic nitrogen fixation, pea (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • SK - Slovenská republika
http://linked.open...ontrolniKodProRIV
  • [36BDC0214E34]
http://linked.open...i/riv/nazevZdroje
  • Phytopedon (Bratislava) Journal of Soil Science
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 3
http://linked.open...iv/tvurceVysledku
  • Šimon, Tomáš
http://linked.open...n/vavai/riv/zamer
issn
  • 1336-1120
number of pages
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