Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: unknown, P. 109687 - 109687
Published: Dec. 1, 2024
Language: Английский
Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 255 - 255
Published: Jan. 21, 2025
The application of nitrification inhibitors (NIs) is an effective way to reduce soil nitrogen (N) losses and increase crop N uptake. Yet, the efficacy NIs commonly varies with dosages, systems environmental conditions. Hence, clarifying suitable type dosage extremely important for structuring best management regime at a regional scale. Here, based on microcosm experiments, we evaluated influence three widely used [Dicyandiamide, DCD; 3,4-Dimethylpyrazole phosphate, DMPP; 2-chloro-6-(trichloromethyl) pyridine, Nitrapyrin] activity intensively cultivated greenhouse soil. results showed that both DCD DMPP imposed transient inhibition (less than five days) regardless dosages applied, and, contrary, Nitrapyrin presented persistent suppression, longer duration action by higher dosage. Accordingly, incorporation 2% applied rate (w/w) recommendable local intensive production. Further, assessed various (0%, 0.25%, 0.5%, 5%) abundance community groups ammonia oxidizers [i.e., ammonia-oxidizing archaea (AOA), bacteria (AOB) completely (Comammox Nitrospira)] qPCR high-throughput amplicon sequencing. strongly lowered AOB Comammox Nitrospira abundances their richness even lowest also significantly altered structure all tested oxidizers, average relative some major members (i.e., Nitrososphaerales Clade Nitrososphaera, A, Nitrosospira briensis Clade, multiformis A.2 A-associated) obviously responded incorporation. Overall, our findings indicated were more sensitive as compared AOA. obtained here highlight importance optimizing fertilization in vegetable inhibits probably suppressing level herein.
Language: Английский
Citations
0
Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16
Published: March 3, 2025
Introduction The selection and application of nitrogen-efficient maize hybrids have significantly bolstered contemporary food security. Nevertheless, the effects heightened nitrogen fertilizer demand these crops on composition assembly soil microbial communities in agricultural production require further elucidation. Methods In this study, four managements rhizosphere bacterial fungal community assembly, co-occurrence network function two (LD981 DH605) were compared. Results discussion Findings revealed that was primarily shaped by deterministic processes, while stochastic processes played a pivotal role assembly. N-efficient hybrid DH605 had more stable than N-inefficient LD981. At N3 (130 g N/m 2 ) rate, networks most complex but unstable, followed N2 (87 ), N0 (0 N1 (43 rates. Excessive rate (N3) increased relative abundance denitrification genes nirK norB enriching nitrogen-related genus such as Nitrolancea Nitrosospira . It led to an increase pathways cysteine methionine metabolism pyruvate metabolism. management practices (i.e. N rates) ultimately directly or indirectly reflected functions. Our findings illustrate relationship between appropriate crop measures optimizing promoting use, which is necessary for sustainable
Language: Английский
Citations
0
Geoderma, Journal Year: 2025, Volume and Issue: 456, P. 117266 - 117266
Published: March 23, 2025
Language: Английский
Citations
0
Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16
Published: April 2, 2025
In light of the challenges posed by contemporary global warming and soil acidification, respective effects pH temperature on microbiome functions have been explored. However, combined influence acidification denitrification active microbial communities are still unclear. Here, we conducted a microcosm experiment to investigate influences increasing microbes such as bacteria eukaryotic microbes. Denitrification rate in were detected using C2H2 inhibition method. The results showed that Shannon index bacterial exhibited significant enhancement response whereas their community patterns predominantly shaped pH. For micro-eukaryotic community, emerged main driver variations α-diversity, with MT group exhibiting significantly lower indices compared LT HT groups. Both exerted effect patterns. Additionally, was crucial factor influencing rates, negative correlation between within range 4.32-7.46 across all temperatures this study. Our findings highlighted impacts rates under warming, which provided an important scientific basis for agricultural production management environmental protection context climate warming.
Language: Английский
Citations
0
Agronomy, Journal Year: 2025, Volume and Issue: 15(5), P. 1005 - 1005
Published: April 22, 2025
Soil nitrogen fate determines availability for crops and their environmental impact, which is regulated by transformation processes that are mediated through soil properties (e.g., pH) factors hydrothermal conditions). Incubation experiments were conducted on soils with different pH levels (covering acidic to calcareous ranges) study the effects of conditions N2O emissions. The results showed net ammonification rate was negatively correlated pH, whereas nitrification rate, mineralization emission positive correlations. Structural equation modeling (SEM) indicated exerted primary influences rates, consequently affecting had 83% 93% effects, respectively, while they 77% Consequently, might be key drivers influencing Specifically, in subtropical regions characterized high temperatures abundant summer rainfall, regulating moisture could mitigate NO3−-N accumulation emissions, providing a targeted strategy sustainable management.
Language: Английский
Citations
0
Bioresource Technology, Journal Year: 2024, Volume and Issue: 413, P. 131488 - 131488
Published: Sept. 13, 2024
Language: Английский
Citations
2
Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: unknown, P. 109687 - 109687
Published: Dec. 1, 2024
Language: Английский
Citations
2