Microbiological characterization of land set-aside before and after Roundup desiccation

Luvic chernozem (set-aside from 1996) was evaluated. The first period, before Roundup desiccation (2002-2003), was characterized by black, spontaneous and controlled fallows (mowed with the removal of plant biomass or mulched); the following period (2003-2004) by black fallow with repeated Roundup a...

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Main Authors: M. Růžková, L. Růžek, K. Voříšek, P. Vráblík, D. Musilová
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2011-02-01
Series:Plant, Soil and Environment
Subjects:
Online Access:https://pse.agriculturejournals.cz/artkey/pse-201102-0008_microbiological-characterization-of-land-set-aside-before-and-after-roundup-desiccation.php
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author M. Růžková
L. Růžek
K. Voříšek
P. Vráblík
D. Musilová
author_facet M. Růžková
L. Růžek
K. Voříšek
P. Vráblík
D. Musilová
author_sort M. Růžková
collection DOAJ
description Luvic chernozem (set-aside from 1996) was evaluated. The first period, before Roundup desiccation (2002-2003), was characterized by black, spontaneous and controlled fallows (mowed with the removal of plant biomass or mulched); the following period (2003-2004) by black fallow with repeated Roundup applications; and the last period (2004-2006) involved re-grassing by a mowed Lolium multiflorum Lam. monoculture. The characterization included microbial biomass, available organic carbon, basal respiration, metabolic quotient, biomass-specific available organic carbon, arylsulfatase activity, soil organic matter carbon and total nitrogen. Mulching of pure cultures of grasses and legumes contributed to a high soil organic matter accumulation. Repeated Roundup desiccation caused a strong (highly significant) decrease of arylsulfatase activity (-28%), however highly significant increase of microbial biomass (+69%) and nitrate-nitrogen (+86%) were determined. The subsequent re-grassing compensated the changes described. The soil biological properties were best preserved on mulched fallow with Lotus corniculatus L. and Festuca pratensis L., also in regard to contamination with weeds.
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spelling doaj.art-0836e9c4b9dc4bcaa60d5d288f0016a42023-02-23T03:45:45ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682011-02-01572889410.17221/226/2010-PSEpse-201102-0008Microbiological characterization of land set-aside before and after Roundup desiccationM. Růžková0L. Růžek1K. Voříšek2P. Vráblík3D. Musilová4Central Institute for Supervising and Testing in Agriculture, Brno, Czech RepublicFaculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicFaculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicFaculty of Environment, University of Jan Evangelista Purkyne, Ústí nad Labem, Czech RepublicFaculty of Science and Engineering, York University, Toronto, Ontario, CanadaLuvic chernozem (set-aside from 1996) was evaluated. The first period, before Roundup desiccation (2002-2003), was characterized by black, spontaneous and controlled fallows (mowed with the removal of plant biomass or mulched); the following period (2003-2004) by black fallow with repeated Roundup applications; and the last period (2004-2006) involved re-grassing by a mowed Lolium multiflorum Lam. monoculture. The characterization included microbial biomass, available organic carbon, basal respiration, metabolic quotient, biomass-specific available organic carbon, arylsulfatase activity, soil organic matter carbon and total nitrogen. Mulching of pure cultures of grasses and legumes contributed to a high soil organic matter accumulation. Repeated Roundup desiccation caused a strong (highly significant) decrease of arylsulfatase activity (-28%), however highly significant increase of microbial biomass (+69%) and nitrate-nitrogen (+86%) were determined. The subsequent re-grassing compensated the changes described. The soil biological properties were best preserved on mulched fallow with Lotus corniculatus L. and Festuca pratensis L., also in regard to contamination with weeds.https://pse.agriculturejournals.cz/artkey/pse-201102-0008_microbiological-characterization-of-land-set-aside-before-and-after-roundup-desiccation.phpfallowmicrobial biomassmetabolic quotientrespirationarylsulfatase
spellingShingle M. Růžková
L. Růžek
K. Voříšek
P. Vráblík
D. Musilová
Microbiological characterization of land set-aside before and after Roundup desiccation
Plant, Soil and Environment
fallow
microbial biomass
metabolic quotient
respiration
arylsulfatase
title Microbiological characterization of land set-aside before and after Roundup desiccation
title_full Microbiological characterization of land set-aside before and after Roundup desiccation
title_fullStr Microbiological characterization of land set-aside before and after Roundup desiccation
title_full_unstemmed Microbiological characterization of land set-aside before and after Roundup desiccation
title_short Microbiological characterization of land set-aside before and after Roundup desiccation
title_sort microbiological characterization of land set aside before and after roundup desiccation
topic fallow
microbial biomass
metabolic quotient
respiration
arylsulfatase
url https://pse.agriculturejournals.cz/artkey/pse-201102-0008_microbiological-characterization-of-land-set-aside-before-and-after-roundup-desiccation.php
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