ǂa ǂcomparison of long-term non-inversion minimum tillage and conventional tillage
Rok Mihelič (Avtor), Sara Pintarič (Avtor), Klemen Eler (Avtor), Marjetka Suhadolc (Avtor)

Povzetek

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.

Ključne besede

conservation agriculture;carbon sequestration;microbial biomass;bacteria;archaea;fungi;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 631.4
COBISS: 183130883 Povezava se bo odprla v novem oknu
ISSN: 0178-2762
Št. ogledov: 20
Št. prenosov: 7
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: trajnostno kmetijstvo;vezava ogljika;pedologija;mikrobna biomasa;obdelava tal;bakterije;glive;arheje;
Vrsta dela (COBISS): Članek v reviji
Strani: str. v tisku
Letnik: ǂVol. ǂ
Zvezek: ǂIss. ǂ
Čas izdaje: 2024
DOI: 10.1007/s00374-024-01796-y
ID: 23649480