Are microbial communities indicators of soil health in a dryland wheat cropping system?

Schlatter, Daniel; Hansen, Jeremy C.; Carlson, Bryan; Leslie, Ian; Huggins, David R.; Paulitz, Timothy C.

doi:10.1016/j.apsoil.2021.104302

Cited by 6 publications

(7 citation statements)

References 64 publications

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“…These differences point to the importance of measuring macro‐ and micronutrient concentrations in soils deeper than 30 cm under different management systems in dryland cropping systems. Management‐associated differences in nutrient distributions with soil depth affect productivity of deep‐rooted cropping systems and deep soil‐inhabiting microbial communities in dryland cropping systems (Schlatter et al., 2022).…”

Section: Discussionmentioning

confidence: 99%

“…Soil health, crop productivity, and C cycling are influenced by cropping system, tillage intensity, and environmental variables, such as precipitation and temperature (Brown & Huggins, 2012;Liptzin et al, 2022;Wachter et al, 2019). Most studies that investigate how management or climate impacts soil health indicators focus on the upper 30-cm depths (e.g., Morrow et al, 2016;Schlatter et al, 2022;Thapa et al, 2023). However, the health of soil layers deeper than 30 cm is important to study as water and nutrient availability in subsoils impacts plant productivity (Breslauer et al, 2020;Kennedy & Schillinger, 2006;Schlatter et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Soil profile health in the Palouse soil series: Carbon, nitrogen, nutrients, and aggregates

Naasko,

Pan,

Reganold

et al. 2023

Agrosystems Geosci & Env

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Deep soil health (>30 cm) supports deep roots in dryland wheat cropping systems. However, few studies examine how tillage and climate impact soil health indicators deeper than 30 cm in dryland wheat systems. We evaluated how select soil chemical (i.e., nutrients and pH), biological (i.e., carbon [C] and nitrogen [N] fractions and ratios), and physical (i.e., mean weight diameter [MWD] of soil aggregates) health indicators were impacted by depth, tillage, and climate. We sampled soil profiles of the Palouse soil series from 0‐ to 85 cm in depth at three no‐till (NT) and three conventional till (CT) sites across a mean annual precipitation (MAP) gradient (460–660 mm) in the Palouse River watershed. NT sites, compared to CT sites, had higher total C (TC) and N (TN), permanganate oxidizable C, hot‐water extractable C and N, and cold‐water extractable N (0–5 cm); greater soil moisture (0–29 cm); larger MWD (0–5 cm; 10–85 cm); but lower soil pH (0–10 cm; 59–85 cm); less TC, TN, and NO3− (29–85 cm); less NH4+ and mineralizable soil C (MINC) (29–59 cm); and lower autoclaved‐citrate extractable (ACE) protein (0–5 cm; 29–85 cm). Sites with higher MAP had greater soil moisture (0–29 cm), higher MINC (0–85 cm), lower CWC (5–10 cm; 29–59 cm), and lower TC and ACE protein (29–85 cm). The variable effects of tillage and climate on these soil health indicators with soil depth show the importance of evaluating soil health in both surface and subsurface soil depths in dryland wheat cropping systems.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soil profile health in the Palouse soil series: Carbon, nitrogen, nutrients, and aggregates

Naasko,

Pan,

Reganold

et al. 2023

Agrosystems Geosci & Env

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“…In addition, only a few bacterial taxa, such as Proteobacteria, Actinobacteria, and Chloroflexi, have been linked to soil health ( Schlatter et al, 2022 ). Among them, Proteobacteria prefer eutrophic and facultative anaerobic environments ( Zhang et al, 2016 ; Yan et al, 2020 ), and are involved in disease suppression ( Deng et al, 2020 ), whereas, Acidobacteria was favored in oligotrophic conditions with lower carbon availability and often used as an indicator of nutritional status ( Naether et al, 2012 ; Jiang et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

“…It is well known that rhizosphere microorganisms play a crucial role in disease suppression and the production of plant-growth-promoting hormones and compounds, which directly impact plant health ( Mendes et al, 2013 ; Schlatter et al, 2022 ), and they are also the key drivers in controlling organic matter mineralization, soil formation, and nutrient availability ( Rillig and Mummey, 2006 ; Xu et al, 2014 ). Thus, understanding microbial communities’ composition, structure, dynamics, and ecological function is critical in controlling plant health and productivity.…”

Section: Introductionmentioning

confidence: 99%

Microbial community diversity and function analysis of Aconitum carmichaelii Debeaux in rhizosphere soil of farmlands in Southwest China

Liu

Jiang

et al. 2022

Front. Microbiol.

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Understanding how microbial communities affect plant growth is crucial for sustainable productivity and ecological health. However, in contrast with the crop system, there is limited information on the microbial community associated with the medicinal plant. We observed that altitude was the most influential factor on the soil microbial community structures of Aconitum carmichaelii Debeaux. For community composition, bacterial reads were assigned to 48 phyla, with Proteobacteria, Acidobacteriota, and Actinobacteriota being the dominant phyla. The fungal reads were assigned to seven phyla, and Ascomycota was the predominant phylum detected in most groups. The four dominant phyla were categorized as keystone taxa in the co-occurrence networks, suggesting that they may be involved in soil disease suppression and nutrient mobility. Bacterial co-occurrence networks had fewer edges, lower average degree, and lower density at YL1, HQ1, HQ2, BC, and DL than fungal networks, creating less intricate rhizosphere network patterns. Furthermore, the bacterial and fungal communities showed strong distance decay of similarity across the sampling range. Overall, this study improves our understanding of regulating rhizosphere microbial communities in soil systems and also provides potential production strategies for planting A. carmichaelii.

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“…Microbial indicators are superior to physical or chemical indicators in the evaluation of soil health (Fierer et al, 2021), as microorganisms have a short reproductive cycle and are sensitive to environmental changes (Tang et al, 2019;Gorain and Paul, 2021). Researchers have begun to use the abundance and diversity of microorganisms as new ecological evaluation indicators (Li et al, 2020;Schlatter et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Toxic Factors of Lead and Cadmium Fit in the Ecological Risk Assessment for Microorganisms

Chen²,

Zhang³

et al. 2022

Front. Microbiol.

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Are microbial communities indicators of soil health in a dryland wheat cropping system?

Cited by 6 publications

References 64 publications

Soil profile health in the Palouse soil series: Carbon, nitrogen, nutrients, and aggregates

Soil profile health in the Palouse soil series: Carbon, nitrogen, nutrients, and aggregates

Microbial community diversity and function analysis of Aconitum carmichaelii Debeaux in rhizosphere soil of farmlands in Southwest China

Toxic Factors of Lead and Cadmium Fit in the Ecological Risk Assessment for Microorganisms

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