Direct effect of fertilization on microbial carbon transformation in grassland soils in dependence on the substrate quality

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F10%3A00011774" target="_blank" >RIV/60076658:12310/10:00011774 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/10:00011877

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Direct effect of fertilization on microbial carbon transformation in grassland soils in dependence on the substrate quality

Popis výsledku v původním jazyce

Response of microbial metabolism (growth, substrate utilization, energetic metabolism) to fertilization by N and P and resulting changes in soil-organic-matter (SOM) decomposition (priming effect) were studied in grassland soils with relatively high organic-matter content. Treatments with and without glucose addition were studied to simulate difference between rhizosphere and bulk soil. Our expectation was that fertilization would decrease soil respiration in both treatments due to an increased efficiency of microbial metabolism. At first, fertilization activated microbial metabolism in both treatments. In glucose-nonamended soils, this was connected with a shortterm apparent priming effect but if glucose was available, the higher energetic demand wascovered by its mineralization in preference against SOM, causing significant SOM savings as compared to unfertilized soils. After a relatively short period of 1?3 d, however, the phase of deprived microbial metabolism occurred in both tre

Název v anglickém jazyce

Direct effect of fertilization on microbial carbon transformation in grassland soils in dependence on the substrate quality

Popis výsledku anglicky

Response of microbial metabolism (growth, substrate utilization, energetic metabolism) to fertilization by N and P and resulting changes in soil-organic-matter (SOM) decomposition (priming effect) were studied in grassland soils with relatively high organic-matter content. Treatments with and without glucose addition were studied to simulate difference between rhizosphere and bulk soil. Our expectation was that fertilization would decrease soil respiration in both treatments due to an increased efficiency of microbial metabolism. At first, fertilization activated microbial metabolism in both treatments. In glucose-nonamended soils, this was connected with a shortterm apparent priming effect but if glucose was available, the higher energetic demand wascovered by its mineralization in preference against SOM, causing significant SOM savings as compared to unfertilized soils. After a relatively short period of 1?3 d, however, the phase of deprived microbial metabolism occurred in both tre

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Plant Nutrition and Soil Science

ISSN

1436-8730

e-ISSN

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Svazek periodika

173

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000283628200009

EID výsledku v databázi Scopus

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