Respiration response to different tillage intensities in transplanted soil columns

Faust, Sibylle; Koch, H.; Joergensen, Rainer Georg

doi:10.1016/j.geoderma.2019.05.023

Cited by 11 publications

(5 citation statements)

References 63 publications

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“…Without mechanical disturbance under NT, the mineralisation of aggregate occluded SOC is most likely reduced [61,62]. This lowers the qCO 2 values of a starving microbial population [32,63] followed by increased MBC contents and later by a higher contribution of microbial necromassderived SOC.…”

Section: La Hampa Spainmentioning

confidence: 99%

The Effects of Conservation Tillage on Chemical and Microbial Soil Parameters at Four Sites across Europe

Engell

Linsler

Şandor

et al. 2022

Plants

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Conservation tillage is often discussed as an effective tool to improve the soil quality in agriculture. Four sites across Europe (in Germany, Romania, Spain, and Sweden) were investigated as case studies for country-specific reductions in tillage intensity. Conventional tillage (CT) by mouldboard ploughing was compared with shallow and deep non-inversion minimum tillage (MT) and/or no-tillage (NT). In Sweden, NT and MT had positive effects on the concentrations of soil organic carbon (SOC), total nitrogen (N), and microbial biomass carbon (MBC) in the upper 20 cm compared with CT. At the German site, MT increased SOC, N, and MBC concentrations in the top 10 cm. In contrast, CT increased MBC contents and bulk density between 20 and 30 cm soil depth. At the Romanian site, soil parameters showed no differences between inverse tillage (CT) and non-inverse tillage (MT), both with a working depth of 25 to 30 cm. At the Spanish site, the use of NT significantly increased the concentrations as well as the stocks of C, N, and MBC compared to CT. In conclusion, reduced tillage improved soil microbial properties in most cases. However, the effectiveness of reduced tillage appears to be highly dependent on site conditions such as pH, soil texture, and climatic conditions.

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Section: La Hampa Spainmentioning

confidence: 99%

The Effects of Conservation Tillage on Chemical and Microbial Soil Parameters at Four Sites across Europe

Engell

Linsler

Şandor

et al. 2022

Plants

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“…Previous studies identi ed management practices, such as N fertilization (Yan et al, 2021), tillage (Faust et al, 2019) and cover with crop residues (Buysse et al, 2013) as driving factors of such greenhouse gas emissions. However, we still lack understanding of how soil biodiversity responds to agroecological practices; to what extent such practices, alone or in combination, can be bene cial for soil functioning; and what services they can provide (Puissant et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The multi-year effect of different agroecological practices on soil nematode and soil respiration

Sun¹,

Coulibaly²,

Cheviron³

et al. 2022

Preprint

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Background and Aims: Agroecology practices can induce profound changes in soil inevitably inﬂuencing soil biological properties and soil functioning. However, we still lack understanding of how soil biodiversity responds to agroecology practices and to what extent such practices, alone or combined, can be beneficial for soil functioning. Understanding soil biological activities under different agroecology practices is important for predicting carbon cycling in agroecosystems. Methods: By taking advantage of a long-term agricultural experimental research station in France, we monitored soil microbes, nematodes and soil respiration over three years in response to agroecology practices that varied in the rate of nitrogen (N) fertilization (low vs high), the tillage type (deep vs reduced), and the crop residue management (retain vs removal). Results: Shifting from conventional to agroecology practices had strong effects on microbial biomass, nematode community and soil respiration. Reduced N and reduced tillage increased microbial biomass carbon, bacterivore and fungivore density. Perennial biomass crop decreased total nematode and herbivore density, but increased microbial biomass. Perennial biomass crop also significantly increased the structure and maturity indices, but decreased the plant parasite indices. Structural equation modelling showed that microbial biomass had a positive correlation with soil respiration in reduced nitrogen, reduced tillage, and residue removal treatments. Bacterivores had a positive correlation with omnivores/predators and soil respiration, while herbivores had a negative correlation with soil respiration in all the treatments. Conclusions: The different agroecological practices tested in this 4-year trial revealed the resilience of nematode communities and associated functions like CO2 respiration according to practices.

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“…Microbial respiration is, moreover, affected by soil organic matter availability, while root respiration is driven by crop production (Lohila et al, 2003;Zhang et al, 2013). The effects of management practices on these two processes can not only be additive or even synergistic, but could also lead to compensation to a certain extent because the management effects on soil temperature, microbial community, and crop growth can be variable (e.g., Faust et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Soil CO2 Efflux Response to Combined Application of Adaptation Technologies, Nitrogen Fertilization, and External Carbon Amendment in Wheat and Barley Field

Dařenová

Findurova

Holub

et al. 2022

Front. Environ. Sci.

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Agricultural practices applied to increase crop production and secure future food demands can have a large negative impact on the environmental quality. They should be, therefore, also evaluated in terms of an impact on soil organic carbon (C) content and greenhouse gas emissions. In this study, we investigated the combined effects of adaptation technology (AT) based on no-till crop sowing into cover crop mulch, nitrogen (N) fertilization, and external C supply in the form of biochar, compost, and composted biochar on soil CO2 efflux (Rs). Rs was measured using a closed gas-exchange system in biweekly to monthly intervals during 2 consecutive years when winter wheat (first year) and spring barley (second year) were cultivated. Biochar, compost, and composted biochar had no significant effects on Rs. N fertilization with the medium fertilizer dose tended to increase Rs compared to the control at the beginning of the growing season, followed by Rs decrease later in the season. On the other hand, fertilization with the maximum fertilizer dose mostly decreased Rs throughout the whole growing season. AT affected the dynamics of Rs substantially, depending on the year, site, and N fertilization, resulting in significant interactions between technology and date of measurement and also between site and technology. However, the mean effect of AT across the whole season was insignificant. The results show that the C increase in the soil that occurs after the application of compost and the combination of composted biochar application with AT is not accompanied by an increase in Rs and, thus, leads to at least short-term C storage in the soil. The reduction in CO2 emissions from soil to the atmosphere under AT represents a positive aspect of such management practice for mitigating climate change.

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Respiration response to different tillage intensities in transplanted soil columns

Cited by 11 publications

References 63 publications

The Effects of Conservation Tillage on Chemical and Microbial Soil Parameters at Four Sites across Europe

The Effects of Conservation Tillage on Chemical and Microbial Soil Parameters at Four Sites across Europe

The multi-year effect of different agroecological practices on soil nematode and soil respiration

Soil CO2 Efflux Response to Combined Application of Adaptation Technologies, Nitrogen Fertilization, and External Carbon Amendment in Wheat and Barley Field

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