Combined effects of cropping alfalfa (Medicago sativa L.) on the soil pore structure, microbial communities and organic carbon fractions in saline soils

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 208, P. 105993 - 105993

Published: March 3, 2025

Language: Английский

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Medicago Pasture Soil C:N:P Stoichiometry Mediated by N Fertilization in Northern China

Agronomy, Journal Year: 2025, Volume and Issue: 15(3), P. 724 - 724

Published: March 17, 2025

The degradation of black soil cropland has occurred to varying degrees in the northern agropastoral ecotone. Crop–forage rotation is an effective way improve quality, with Medicago being preferred perennial legume. C, N, and P stoichiometric ratios are key indicators quality organic matter composition, reflecting status internal cycles soil. This study aims investigate ecological grassland soils different planting durations, explore regulatory effects nitrogen fertilizer on carbon (SOC), total (TN), phosphorus (TP) content, assess impacts these changes ecosystem. was conducted long-term cultivated core experimental platform Hulunber National Field Station. Based forage yield nutrient measurements, field-based observations laboratory analyses were carried out. × varia subject, treatments: CK (0 kg N ha−1), N75 (75 N150 (150 ha−1). A randomized block design adopted. Variance analysis, boxplot statistics, scatterplot fitting methods used examine properties application stoichiometry established grasslands. results indicate that, based growth characteristics alfalfa, dynamics, its effectiveness improving optimal period for alfalfa ecotone 4–5 years, but it can also be shortened 3 years. Soil carbon, nitrogen, contents significantly influenced by duration. As years increase, first increase then decrease, while content initially decreases followed a slight increase. pH gradually rises both depth. Both low high levels reduce concentration (by 0.40% 10.14%, respectively). Low increases 1.50%), whereas 7.6%). 36.67% 35.26%, For from planted 8 carbon-to-nitrogen ratio ranges 9.08 9.76, carbon-to-phosphorus 13.00 151.32, nitrogen-to-phosphorus 1.65 17.14. In summary, primarily rate, duration, ratios, pH. Nitrogen positive effect ratios. annual reach 8.94 10.07 tons per hectare., remains limiting factor. These findings provide crucial data understanding impact crop–forage cycles, as well land use improvement.

Language: Английский

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The Impact of Metolachlor Applications and Phytoremediation Processes on Soil Microorganisms: Insights from Functional Metagenomics Analysis

Journal of Xenobiotics, Journal Year: 2024, Volume and Issue: 14(3), P. 970 - 988

Published: July 23, 2024

This study assessed the impact of phytoremediation on reducing residual concentration metolachlor in soil treated with doses 530.7 and 1061.4 g/ha its effect microbial biodiversity contaminated areas. For plant species

Language: Английский

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Exploring the Effects of an Alfalfa Leaf-Derived Adsorbent on Microbial Community, Ileal Morphology, Barrier Function, and Immunity in Turkey Poults during Chronic Aflatoxin B1 Exposure

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(14), P. 7977 - 7977

Published: July 22, 2024

This article follows-up on our recently published work, which evaluated the impact of addition an alfalfa leaf-derived adsorbent in aflatoxin B

Language: Английский

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Nutrient distribution and utilization in apple–soybean alley-cropping systems under different drip irrigation emitter line deployments and mulching methods in the Loess Plateau of China

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Aims Apple–soybean alley cropping is one of the typical alley-cropping models in Loess Plateau China. The study aimed to alleviate interspecific competition intensified by growth fruit trees using combination drip irrigation emitter line and mulching regulate soil nutrient distribution analyze effects on utilization. Methods A three-year field trial was conducted apple–soybean systems, setting up three spacings (L1: per soybean row; L2: for every two rows; L3: rows) methods (M1: mulching; M0: non-mulching). Results Rapidly available phosphorus (AP), rapidly potassium total contents varied greatly at same spacing, whereas AP content different spacings. Compared with M0, yield, use efficiency M1 significantly increased. Most nutrients denser spacing (L1) were concentrated surface layer uniform distribution. At wider (L3), uneven, resulting fewer uptake utilization roots. moderate (L2) alleviated optimizing facilitating root niche separation between crops. In years, M1L2 consistently displayed highest efficiency. Principal component analysis showed that achieved comprehensive score. Conclusions results recommended young L1 as a preferable control measure if M0 used.

Language: Английский

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Dynamics of fungi and the connection with bacteria in removing nutrients from mariculture wastewater in the integrated bioremediation systems

International Biodeterioration & Biodegradation, Journal Year: 2024, Volume and Issue: 194, P. 105877 - 105877

Published: July 29, 2024

Language: Английский

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