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Effects of transitioning from conventional to organic farming on soil organic carbon and microbial community : a comparison of long-term non-inversion minimum tillage and conventional tillage
ID Mihelič, Rok (Avtor), ID Pintarič, Sara (Avtor), ID Eler, Klemen (Avtor), ID Suhadolc, Marjetka (Avtor)

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Izvleček
The combination of conservation tillage (non-inversion and no-till) with organic farming is rare due to weed problems. However, both practices have the potential to improve soil quality and increase soil organic C (SOC). This study investigated the changes in SOC, microbial biomass, and microbial composition during the transition from conventional to organic farming (from 2014 to 2020) in a long-term tillage trial established in 1999. Non-inversion minimum tillage to a depth of 10 cm (MT) resulted in SOC stratification, whilst conventional soil tillage with 25-cm-deep mouldboard ploughing (CT) maintained an even SOC distribution in the plough layer. After 12 years of contrasting tillage in 2011, the uppermost soil layer under MT had a 10% higher SOC content (1.6% w/w) than CT (1.45% w/w). This difference became even more pronounced after introducing organic farming in 2014. By the fall of 2020, the SOC content under MT increased to 1.94%, whilst it decreased slightly to 1.36% under CT, resulting in a 43% difference between the two systems. Conversion to organic farming increased microbial biomass under both tillage systems, whilst SOC remained unchanged in CT. Abundances of total bacterial and Crenarchaeal 16S rRNA and fungal ITS genes indicated shifts in the microbial community in response to tillage and depth. Fungal communities under MT were more responsive to organic farming than bacterial communities. The improved soil quality observed under MT supports its adoption in both organic and conventional systems, but potentially large yield losses due to increased weed cover discourage farmers from combining MT and organic farming.

Jezik:Angleški jezik
Ključne besede:conservation agriculture, carbon sequestration, microbial biomass, bacteria, archaea, fungi
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2024
Št. strani:Str. 341–355
Številčenje:Vol. 60, iss. 3
PID:20.500.12556/RUL-156141 Povezava se odpre v novem oknu
UDK:631.4
ISSN pri članku:0178-2762
DOI:10.1007/s00374-024-01796-y Povezava se odpre v novem oknu
COBISS.SI-ID:183130883 Povezava se odpre v novem oknu
Datum objave v RUL:10.05.2024
Število ogledov:323
Število prenosov:175
Metapodatki:XML DC-XML DC-RDF
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Gradivo je del revije

Naslov:Biology and fertility of soils
Skrajšan naslov:Biol. fertil. soils
Založnik:Springer Nature
ISSN:0178-2762
COBISS.SI-ID:512154905 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:trajnostno kmetijstvo, vezava ogljika, pedologija, mikrobna biomasa, obdelava tal, bakterije, glive, arheje

Projekti

Financer:Drugi - Drug financer ali več financerjev
Program financ.:CORE Organic Plus
Akronim:FertilCrop

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Program financ.:Young researchers

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:V4-2022
Naslov:Zmanjšanje emisij toplogrednih plinov in povečanje vezave C v tla z ohranitveno obdelavo tal ((akronim "ReC-Till"))

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:L4-9315
Naslov:EcoFAR: varnost preskrbe s hrano in blažitev podnebnih sprememb z razvojem ekološkega kmetijstva - ohranitvena obdelava tal, bioefektorji in trajnostno upravljanje s pleveli

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P4-0085
Naslov:Agroekosistemi

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Ministry of Agriculture, Forestry and Food

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