Organic amendments enhance soil microbial diversity, microbial functionality and crop yields: A meta-analysis

The Science of The Total Environment, Год журнала: 2022, Номер 829, С. 154627 - 154627

Опубликована: Март 17, 2022

Язык: Английский

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Crop residue return sustains global soil ecological stoichiometry balance

Global Change Biology, Год журнала: 2023, Номер 29(8), С. 2203 - 2226

Опубликована: Янв. 6, 2023

Although soil ecological stoichiometry is constrained in natural ecosystems, its responses to anthropogenic perturbations are largely unknown. Inputs of inorganic fertilizer and crop residue key cropland managements, with potential alter their stoichiometry. We conducted a global synthesis 682 data pairs quantify the carbon (C), nitrogen (N), phosphorus (P) grain yields combined inputs plus compared only application. Crop enhance C (10.5%-12%), N (7.63%-9.2%), P (2.62%-5.13%) contents, an increase C:N (2.51%-3.42%) C:P (7.27%-8.00%) ratios, (6.12%-8.64%), indicating that alleviated limitation caused by alone was able sustain balanced Moreover, C:N(P) ratio reached saturation ~13-16 years after return, while yield trend discontinued. Furthermore, we identified increased C, N, contents ratios were regulated initial pH content, not related properties, but also negatively amount input greater extent. Given residual improvement varies properties levels, propose predictive model preliminary evaluate for improvement. Particularly, suggest part budget should be used subsidize management strategies, achieving win-win situation agricultural production, protection, climate change mitigation.

Язык: Английский

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Reduced Chemical Fertilizer Combined With Bio-Organic Fertilizer Affects the Soil Microbial Community and Yield and Quality of Lettuce

Frontiers in Microbiology, Год журнала: 2022, Номер 13

Опубликована: Апрель 21, 2022

Reducing chemical fertilizers in combination with bio-organic can limit the use of while maintaining soil fertility. However, effects combined fertilization on properties, microbial community structure, and crop yield quality are unknown. Using high-throughput sequencing, we conducted field experiments using lettuce plants subjected to five treatments: fertilizer conventional rate (CK), reduction by 30% + 6,000 kg ha-1 (T1), 9,000 (T2), 40% (T3), (T4). Compared CK, T1-T4 had significantly higher pH organic matter (SOM) showed increased richness diversity bacterial community, decreased fungal community. Principal coordinate analysis evidenced that communities CK were distinctly separated. The Kruskal-Wallis H-test demonstrated was more sensitive than fertilizer. Among parameters measured, only TN (total nitrogen) correlated composition. T1 T2 yield. Moreover, characterized reduced nitrate content levels soluble sugars vitamin C lettuce. Overall, application effectively improved fertility, quality. These findings have valuable implications for vegetable safety long-term environmental sustainability.

Язык: Английский

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Drive soil nitrogen transformation and improve crop nitrogen absorption and utilization - a review of green manure applications

Frontiers in Plant Science, Год журнала: 2024, Номер 14

Опубликована: Янв. 4, 2024

Green manure application presents a valuable strategy for enhancing soil fertility and promoting ecological sustainability. By leveraging green manures effective nitrogen management in agricultural fields can significantly reduce the dependency of primary crops on chemical fertilizers, thereby fostering resource efficiency. This review examines current advancements industry, focusing modulation transformation how absorb utilize after application. Initially, influence is delineated, covering processes such as immobilization, mineralization, losses including NH 3 , N 2 O, NO − -N leaching. The then delves into effects composition function microbial communities, highlighting their role transformation. It emphasizes available content soil, this article discussing uptake utilization by plants, aspects translocation, distribution, root system, rhizosphere environment crops. provides insights mechanisms that enhance when are reintroduced fields. Finally, anticipates future research directions modulating dynamics crop through application, aiming to advance development sector.

Язык: Английский

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Synergistic effects of diazotrophs and arbuscular mycorrhizal fungi on soil biological nitrogen fixation after three decades of fertilization

iMeta, Год журнала: 2023, Номер 2(1)

Опубликована: Янв. 27, 2023

Abstract Biological nitrogen (N) fixation (BNF) via diazotrophs is an important ecological process for the conversion of atmospheric N to biologically available N. Although soil play a dominant role in BNF and arbuscular mycorrhizal fungi (AMF) serve as helpers favor BNF, response diazotrophic communities different long‐term fertilizations AMF diazotrophs‐driven are poorly understood. Herein, 33‐year fertilization experiment wheat–maize intercropping system was conducted investigate changes rates, communities, their interactions after representative (chemical fertilizer, cow manure, wheat straw, green manure). We found remarkable increase rates more than three decades compared with nonfertilized soil, manure treatment rendered highest enhancement. The functionality strengthening mainly associated absolute abundance relative key cluster Module #0 (gained from co‐occurrence network species) such Skermanella Azospirillum . Furthermore, although positive correlations between were reduced under organic regimes, manuring could reverse decline within #0, this had relationship rate. This study suggests that promote select specific groups fixers certain areas. Our work provides solid evidence taxa interspecies will be largely favored fertilized strategy manure.

Язык: Английский

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Southern China can produce more high-quality rice with less N by green manuring

Resources Conservation and Recycling, Год журнала: 2023, Номер 196, С. 107025 - 107025

Опубликована: Май 11, 2023

Язык: Английский

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Long-term adoption of plow tillage and green manure improves soil physicochemical properties and optimizes microbial communities under a continuous peanut monoculture system

Frontiers in Microbiology, Год журнала: 2025, Номер 15

Опубликована: Янв. 9, 2025

Continuous monocropping of peanuts (Arachis hypogaea L.) often results in yield decline and soil degradation. The combination green manure (GM) with tillage practices has been proposed as a sustainable strategy to maintain high crop productivity improve quality. This study investigates the long-term effects 8 years GM application combined plow on microbial communities physicochemical properties under peanut system. Treatments included: (i) no (NT); (ii) before winter fallow period (PT); (iii) growing ryegrass (Lolium perenne during applying it planting next-stubble (PTGM). It was found that both PTGM PT remarkably decreased average bulk density (BD), while elevated mean porosity (SP) 0-30 cm layer. Moreover, significantly increased available potassium (AK), phosphorus (AP), total nitrogen (TN), organic matter (SOM). Peanut pod yields treatment were 14.1 7.2% higher compared NT treatments, respectively. Additionally, could promote shifts bacteria compositions, increasing abundance Actinobacteria Firmicutes reducing Chloroflexi. For fungal abundances, abundances Ascomycota Basidiomycote. Redundancy analysis demonstrated SOM, TN, AK, AP positively related dominant flora fungi PTGM, negatively NT. Overall, have potential reshape community season, primarily due influence content shaping diversity composition. Our highlights may serve an effective practice future mitigate continuous cropping obstacles by modulating communities, improving nutrients fertility, enhancing productivity.

Язык: Английский

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Introduction of Panax notoginseng into pine forests significantly enhances the diversity, stochastic processes, and network complexity of nitrogen-fixing bacteria in the soil

Frontiers in Microbiology, Год журнала: 2025, Номер 16

Опубликована: Фев. 3, 2025

Introduction Nitrogen-fixing bacteria (NFB) have a pivotal impact on the nitrogen cycle within agroforestry systems. The organic management of Panax notoginseng (sanqi)- Pinus armandii (SPA) system resulted in deficiency because lack application chemical fertilizers. Therefore, assessing variability NFB due to cultivation sanqi SPA becomes crucial. Methods seasonal dynamics abundance, diversity, and community structure soil monocropping pine (MP) systems were assessed using real-time quantitative polymerase chain reaction high-throughput sequencing technology. Results discussion Sanqi triggered decrease abundance but increased α diversity. Additionally, significant differences noted between MP Moreover, Bradyrhizobium Azospirillum after was cultivated. Furthermore, broadened ecological niche breadth stochasticity its assembly (i.e., dispersal limitation). network complexity not stability NFB. structural equation model (SEM) revealed that pH directly impacted system. positively influences characteristics Our study provides new insights into cycling utilization

Язык: Английский

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Negative impacts of excessive nitrogen fertilization on the abundance and diversity of diazotrophs in black soil under maize monocropping

Geoderma, Год журнала: 2021, Номер 393, С. 114999 - 114999

Опубликована: Фев. 26, 2021

Язык: Английский

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Biochar-induced changes in the soil diazotroph community abundance and structure in a peanut field trial

Biochar, Год журнала: 2022, Номер 4(1)

Опубликована: Апрель 14, 2022

Abstract Biological nitrogen fixation (BNF) can help replenish available (N) in cropland and reduce the use of chemical N fertilizers, with diazotrophs playing an important role. However, response diazotroph community BNF activity biochar amendment soil, especially deep soil horizon, are poorly understood. In this study, samples were collected from topsoil (0–20 cm) subsoil (20–40 field experiment (established 2013) comprising treatments no fertilizer (CK), (NPK), (BC), plus fertilizers (BNPK). Here, we investigated using real-time PCR high-throughput sequencing nifH gene, assessed 2 rate (R Nfix ) acetylene reduction assay (ARA). Results showed that topsoil, significantly increased gene copies R , which was consistent organic matter (SOM), total carbon-to-nitrogen ratio (C/N), dissolved carbon (DOC) pH. subsoil, applying (NPK) strongly decreased but had effect on abundance; contrast, application (BC) suppressed growth bacteria while increasing abundance Rhizobiales order. Diazotroph bacterial positively correlated both top- sub-soil, they mainly influenced by SOM (TN). addition, nitrate (NO 3 − –N) major factor shaping vertical stratification structure. Although structure equation modeling (SEM) highest correlation between . Hence, suggested sources key factors changes pattern abundance. Biochar induced dominant succession content pH, contributed to activity. Changes driven variation

Язык: Английский

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