Reduced tillage stimulated symbiotic fungi and microbial saprotrophs, but did not lead to a shift in the saprotrophic microorganism community structure

  title={Reduced tillage stimulated symbiotic fungi and microbial saprotrophs, but did not lead to a shift in the saprotrophic microorganism community structure},
  author={S. Hydbom and M. Ernfors and Johanna Birgander and J. Hollander and E. S. Jensen and P. Olsson},
  journal={Applied Soil Ecology},
The need for sustainable agricultural systems, which for example enhance soil organic carbon (SOC) content, has increased the interest for management with reduced tillage. In this study we used a Swedish long-term (20 yrs.) systems experiment, including reduced tillage (harrowing 10 cm) and plowing (moldboard plow 0–20 cm) combined with three levels of nitrogen (N) fertilization. With this setup we tested if (1) the arbuscular mycorrhizal fungi (AMF) concentration and (2) the fungi to bacteria… Expand
Biochemical signatures reveal positive effects of conservation tillage on arbuscular mycorrhizal fungi but not on saprotrophic fungi and bacteria
It is suggested that reducing or omitting plowing influence soil microbes, but does not necessarily result in more SOC. Expand
Effects of Tillage on Organic Matters and Microbial Communities in Organically Cultivated Corn Field Soils
BACKGROUND: Soil carbon sequestration has been investigated for a long time because of its potential to mitigate the greenhouse effect. Noor reduced tillage, crop rotations, or cover crops have beenExpand
Significant effects on soil microbial communities were not detected after strategic tillage following 44 years of conventional or no-tillage management
Assessment of the impacts of one-time strategic tillage following 44 years of continuous NT or conventional tillage on soil microbial diversity, biomass, enzymatic activity and substrate utilisation potential at two depths suggests ST has the potential to be used as a strategy to control weeds and diseases without compromising soil health. Expand
Respiration response to different tillage intensities in transplanted soil columns
Abstract Undisturbed soils columns were transplanted from three tillage treatments at four sites in Central Germany to one site to investigate the relations between the CO2 efflux, soil temperatureExpand
Resilience of bacteria, archaea, fungi and N-cycling microbial guilds under plough and conservation tillage, to agricultural drought
Climate change causes droughts, which in turn cause significant physiological stress for soil microorganisms. In this study, we investigated how the abundance of total bacterial, crenarchaeal andExpand
Response of maize leaf decomposition in litterbags and soil bags to different tillage intensities in a long-term field trial
Abstract In a long-term tillage field trial under practical farming conditions in Central Germany, the decomposition of maize (Zea maize L.) leaf litter was monitored for 8 months in litterbags andExpand
Response of soil microbial communities to agroecological versus conventional systems of extensive agriculture
The results suggest that agroecological management is characterised by fungal dominance in soil microbial communities and a higher microbial metabolic efficiency compared to conventional management, which could counteract the negative effect of the lack of synthetic fertilisation and reduced-tillage in the long term. Expand
Community structure of soil fungi in a novel perennial crop monoculture, annual agriculture, and native prairie reconstruction
Similarities in the overall and functional fungal communities between the perennial monoculture and native vegetation suggest Kernza® cropping systems have the potential to mimic reconstructed natural systems. Expand
Subsoiling during summer fallow in rainfed winter-wheat fields enhances soil organic carbon sequestration on the Loess Plateau in China
The adoption of STF could be beneficial to the management of the SOC pool in the 0–50 cm soil profile in the rainfed area of winter-wheat on the Loess Plateau of China. Expand
Organic and conservation agriculture promote ecosystem multifunctionality
Considering agroecosystem multifunctionality is essential for designing sustainable cropping systems. Ecosystems provide multiple services to humans. However, agricultural systems are usuallyExpand


Impact of reduced tillage on carbon and nitrogen storage of two Haplic Luvisols after 40 years
It is broadly accepted that reduced tillage increases soil organic carbon (C org ) and total nitrogen (N) concentrations in arable soils. However, the underlying processes of sequestration are notExpand
Abundance, production and stabilization of microbial biomass under conventional and reduced tillage
Compared to conventional tillage, the results suggest that RT can promote soil C storage without increasing the role of saprophytic fungi in SOM dynamics relative to that of bacteria. Expand
Contrasting effects of nitrogen availability on plant carbon supply to mycorrhizal fungi and saprotrophs - a hypothesis based on field observations in boreal forest.
It is hypothesize that low N supply and plant productivity, and hence low litter C supply to saprotrophs is associated with a high plant C supplyTo mycorrhizal fungi, while the reverse occurs under high N supply, and should mean that effects of N availability onC supply to these functional groups of microbes acts in opposing directions. Expand
Tillage-induced changes in fungal and bacterial biomass associated with soil aggregates: A long-term field study in a subtropical rice soil in China
The composition and function of the soil microbial community can be strongly influenced by soil structure and tillage. Soil total microbial biomass C (MBC), microbial biomass N (MBN), and fungal andExpand
Microbial biomass and activity in silt and sand loams after long-term shallow tillage in central Germany
Abstract Forms of ploughless cultivation, such as shallow tillage, in central Germany, are associated with N deficiency symptoms in crops which may be tillage induced. On a farm in the hilly areaExpand
Arbuscular mycorrhizae and the phosphorus nutrition of maize: A review of Guelph studies
The role of mycorrhizae in phosphorus nutrition of maize is related to the fact that the P concentration in maize shoots at the four- to five-leaf stage affects final grain yield and greater early-season shoot-P concentration and P absorption from a no-till compared to a conventional tillage system was observed. Expand
Fungal-to-Bacterial Ratios in Soils Investigated for Enhanced C Sequestration
Abstract Fungi and bacteria govern most of the transformations and ensuing long-term storage of organic C in soils. We assessed the relative contributions of these two groups of organisms to theExpand
Tillage effects on soil organic carbon distribution and storage in a silt loam soil in Illinois
Interest in tillage impacts on sequestration of soil organic carbon (SOC) has increased greatly during recent years. The use of reduced and no-tillage (NT) practices generally increases the SOCExpand
Bacterial and Fungal Cell‐Wall Residues in Conventional and No‐Tillage Agroecosystems
Agricultural management practices have been shown to influence the decomposer community in soils, with no-tillage (NT) systems favoring fungi as compared with conventional tillage (CT) systems. InExpand
Soil organic carbon and nitrogen in a Mollisol in central Ohio as affected by tillage and land use
Abstract Minimum tillage practices are known for increasing soil organic carbon (SOC). However, not all environmental situations may manifest this potential change. The SOC and N stocks were assessedExpand