Diversifying crop rotation increased metabolic soil diversity and activity of the microbial community

D'Acunto, Luciana; Andrade, José F.; Poggio, Santiago L.; Semmartin, María

doi:10.1016/j.agee.2018.02.011

Cited by 90 publications

(32 citation statements)

References 43 publications

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“…The true richness and diversity, measured in estimated number of T-RFs, rather than Shannon Index H', might better highlight the hypothetical influence of crop rotations on bacterial communities. Rotation has been widely considered as one of the most promising practices for the improvement of soil microbial diversity [39][40][41]. However, according to our results, the lowest diversity was found in the bacterial community associated to the most intense rotation system studied (Norfolk-type).…”

Section: Richness and Diversity Of Bacterial Communitiesmentioning

confidence: 48%

Effect of Long-Term Cropping Systems on the Diversity of the Soil Bacterial Communities

et al. 2019

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Soil microbial communities are involved in the maintenance of productivity and health of agricultural systems; therefore an adequate understanding of soil biodiversity plays a key role in ensuring sustainable use of soil. In the present study, we evaluated the influence of different cropping systems on the biodiversity of the soil bacterial communities, based on a 54-year field experiment established in Martonvásár, Hungary. Terminal restriction fragment length polymorphism (T-RFLP) fingerprinting technique was used to assess soil bacterial diversity and community structure in maize monoculture and three different crop rotations (maize-alfalfa, maize-wheat and the maize-barley-peas-wheat Norfolk type). No differences in richness and diversity were detected between maize monoculture and crop rotations except for the most intense rotation system (Norfolk-type). Although the principal component analysis did not reveal a clear separation between maize monoculture and the other rotation systems, the pairwise tests of analysis of similarity (ANOSIM) revealed that there are significant differences in the composition of bacterial communities between the maize monoculture and maize-alfalfa rotation as well as between wheat-maize and Norfolk-type rotation.

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Section: Richness and Diversity Of Bacterial Communitiesmentioning

confidence: 48%

Effect of Long-Term Cropping Systems on the Diversity of the Soil Bacterial Communities

et al. 2019

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“…It increases the productivity of crops at a reduced workload, and at the same time cuts down the negative impact on the environment. In addition to enriching the crop rotation by increasing biodiversity, crop rotation brings additional benefits such as: increasing the content of organic matter in the soil, reducing weed pressure, reducing the spread of pathogens, and protecting the soil in periods between main crops [182,183]. Keeping CCs during the autumn and winter period is especially important as it limits nutrient losses and erosion, especially in light soils.…”

Section: Effect Of Legume Ccs On the Content Of Organic Matter And Nimentioning

confidence: 99%

Legume Cover Crops as One of the Elements of Strategic Weed Management and Soil Quality Improvement. A Review

et al. 2020

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The benefits of conservation practices increased the interest of farmers in the cultivation of cover crops (CCs). This review aims to present and analyze the state of the art on the cultivation of legume CCs, including their importance in protecting crops against weeds, as well as their effects on organic matter and nitrogen content in the soil, physical and biological properties of the soil, and its erosion. The multi-purpose character of legume CCs is visible in their positive effect on reducing weed infestation, but also on the soil: reducing its compaction and erosion, improving its structural and hydraulic properties, increasing the content of organic matter and activity of soil microorganisms, or increasing its nitrogen content due to symbiotic N2 fixing. This review demonstrates that a wider use of legume CCs in organic farming is needed. The benefits of legume CCs for successive crops in these cultivation conditions, both in terms of inhibiting weed populations and improving fertility and soil properties, also need to be identified. Further research is also needed to determine the potential impact of legume CCs on the improvement of the quality of degraded soils, or those with less favorable physicochemical properties.

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“…In contrast, the application of organic fertilizers or livestock manure facilitates the maintenance of a stable soil microbial diversity (Sun et al, ). As an important agricultural management strategy, crop rotation can increase soil microbial richness and functional diversity, with stronger positive effects after longer rotation periods or more diversified rotation crops (D'Acunto et al, ; Venter et al, ). The return of crop residues, such as straw, is widely practiced to enhance soil fertility (Lal, ); however, the effects of this approach on soil microbial communities are still mostly unclear.…”

Section: Introductionmentioning

confidence: 99%

Direct and indirect effects of long‐term ditch‐buried straw return on soil bacterial community in a rice–wheat rotation system

et al. 2019

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Ditch‐buried straw return (DB‐SR) is a novel soil tillage and fertility building practice that is effective in regulating soil carbon and nitrogen dynamics and hydrothermal processes in rice–wheat rotation systems. However, the effects of DB‐SR on soil bacterial community are still largely unclear. We deciphered soil bacterial community with high‐throughput sequencing under various returning approaches, burial depths, and straw amounts after 6.5 years of DB‐SR application. Our results showed that DB‐SR structured distinctive soil bacterial community with rotary tillage straw return (RT‐SR; one‐way analysis of similarities [ANOSIM]: P < .01). RT‐SR significantly reduced soil bacterial diversity by 3.87%, but DB‐SR could maintain it (P > .05). These variations were mainly caused by water content‐driven changes in soil organic carbon. Also, bacterial community composition was distinctive among burial depth treatment (one‐way ANOSIM: P < .05), and deeper burial reduced species richness and diversity (P < .05). Variation in C/N ratio could mostly explain the alterations in soil bacterial community structure under different burial depths. Moreover, the amount of straw buried had no significant effect on soil bacterial species richness or diversity (P > .05), but bacterial community composition was more dissimilar with increasing straw amount (one‐way ANOSIM: P < .01). Our results suggest that long‐term DB‐SR can maintain the bacterial community structure in the surface soil layers when compared with conventional RT‐SR, but taking the current production level into consideration, the burial depth should not be greater than 20 cm for incorporating the full amounts of straws.

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Diversifying crop rotation increased metabolic soil diversity and activity of the microbial community

Cited by 90 publications

References 43 publications

Effect of Long-Term Cropping Systems on the Diversity of the Soil Bacterial Communities

Effect of Long-Term Cropping Systems on the Diversity of the Soil Bacterial Communities

Legume Cover Crops as One of the Elements of Strategic Weed Management and Soil Quality Improvement. A Review

Direct and indirect effects of long‐term ditch‐buried straw return on soil bacterial community in a rice–wheat rotation system

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