Crop residue quality and soil type influence the priming effect but not the fate of crop residue C

Schmatz, Raquel; Recous, Sylvie; Aita, Celso; Tahir, Majid Mahmood; Schu, Adriane Luiza; Chaves, Bruno; Giacomini, Sandro José

doi:10.1007/s11104-016-3120-x

Cited by 52 publications

(21 citation statements)

References 49 publications

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“…In our sites, respired-C was higher in fine-textured soils up to 40 cm depth and was significantly lower in Podzols. Conversely, several studies have reported higher C mineralization rates in sandy soils than in finer-textured soils in various contexts from boreal forests through croplands in Norway and all the way to Brazil (Bauhus et al 1998;Frøseth and Bleken 2015;Schmatz et al 2017). These opposite results could originate from various sources, and specifically differences in C/N ratio.…”

Section: I) Modulation Of the Effect Of Depth By Soil Classmentioning

confidence: 97%

Environmental factors controlling soil organic carbon stability in French forest soils

et al. 2018

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Section: I) Modulation Of the Effect Of Depth By Soil Classmentioning

confidence: 97%

Environmental factors controlling soil organic carbon stability in French forest soils

et al. 2018

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“…The lack of a response to crop phase (i.e., plant species identity) indicates other factors were more important in determining microbial community composition. It is presumed that chemical-vs. organic-based inputs and soil disruptions from tillage (Ishaq et al, 2020a), as well as seasonal temperature and precipitation (Ishaq et al, 2020b), are stronger selective pressures of soil microbial communities than the effects that crop species have on quality of plant residue inputs (Schmatz et al, 2017) or microbialrecruitment by plants (Ishaq et al, 2017). A similar study of crop rotations and management strategies in the Central Great Plains found that conservation tillage and arable weed diversity affected soil microbial communities much more than cover crop diversity (Wortman et al, 2013).…”

Section: No Impact Of Crop Rotation Phasementioning

confidence: 99%

Temporal Soil Bacterial Community Responses to Cropping Systems and Crop Identity in Dryland Agroecosystems of the Northern Great Plains

Ouverson

Eberly

Seipel

et al. 2021

Front. Sustain. Food Syst.

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Industrialized agriculture results in simplified landscapes where many of the regulatory ecosystem functions driven by soil biological and physicochemical characteristics have been hampered or replaced with intensive, synthetic inputs. To restore long-term agricultural sustainability and soil health, soil should function as both a resource and a complex ecosystem. In this study, we examined how cropping systems impact soil bacterial community diversity and composition, important indicators of soil ecosystem health. Soils from a representative cropping system in the semi-arid Northern Great Plains were collected in June and August of 2017 from the final phase of a 5-year crop rotation managed either with chemical inputs and no-tillage, as a USDA-certified organic tillage system, or as a USDA-certified organic sheep grazing system with reduced tillage intensity. DNA was extracted and sequenced for bacteria community analysis via 16S rRNA gene sequencing. Bacterial richness and diversity decreased in all farming systems from June to August and was lowest in the chemical no-tillage system, while evenness increased over the sampling period. Crop species identity did not affect bacterial richness, diversity, or evenness. Conventional no-till, organic tilled, and organic grazed management systems resulted in dissimilar microbial communities. Overall, cropping systems and seasonal changes had a greater effect on microbial community structure and diversity than crop identity. Future research should assess how the rhizobiome responds to the specific phases of a crop rotation, as differences in bulk soil microbial communities by crop identity were not detectable.

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“…The explanation of this result could lie in the reduced diffusion of enzymes and other solutes related to the specific properties of the clay soil, because it is known that clay content decreases diffusion, which depends exponentially on the pore-size distribution index. Schmatz et al [101] achieved the same results after the incorporation of wheat, pea, and vetch residues into sandy-loam and clay soils. They conducted the incubations for 360 days, and the mineralization of all three crop resides was higher in sandy-loam soil.…”

Section: The Influence Of Environmental Factors On the Rate Of Mineralization Of Crop Residuesmentioning

confidence: 71%

Environmental Factors Affecting the Mineralization of Crop Residues

2020

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The aim of this article is to present the issues related to the significance of microorganisms in the mineralization of crop residues and the influence of environmental factors on the rate of this process. Crop residues play a very important role in agriculture because they can be used both as an environment-friendly waste management strategy and as a means of improving soil organic matter. The inclusion of crop residues in the soil requires appropriate management strategies that support crop production and protect the quality of surface water and groundwater. Crops need nutrients for high yields; however, they can only absorb ionic forms of elements. At this point, the microorganisms that convert organically bound nitrogen, phosphorus, and sulfur into soluble NH4+, NO3−, H2PO4−, HPO42−, and SO42− ions are helpful. Mineralization is the transformation of organic compounds into inorganic ones, which is a biological process that depends on temperature, rainfall, soil properties, the chemical composition of crop residues, the structure and composition of microbial communities, and the C:N ratio in soil after the application of plant matter. An adjustment of the values of these factors enables us to determine the rate and direction of the mineralization of crop residues in soil.

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Crop residue quality and soil type influence the priming effect but not the fate of crop residue C

Cited by 52 publications

References 49 publications

Environmental factors controlling soil organic carbon stability in French forest soils

Environmental factors controlling soil organic carbon stability in French forest soils

Temporal Soil Bacterial Community Responses to Cropping Systems and Crop Identity in Dryland Agroecosystems of the Northern Great Plains

Environmental Factors Affecting the Mineralization of Crop Residues

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