Response of soybean and maize roots and soil enzyme activities to biodegradable microplastics contaminated soil

Ecotoxicology and Environmental Safety, Год журнала: 2023, Номер 262, С. 115129 - 115129

Опубликована: Июнь 12, 2023

Although biodegradable plastic film is a promising alternative product for reducing polyethylene pollution in agricultural soils, the effects of its residues on plant growth and soil properties remain unclear. In this study, we conducted an experiment to investigate root enzyme activities Poly (butylene adipate-co-terephthalate) microplastics (PBAT-MPs) contaminated (0 % (CK), 0.1 %, 0.2 0.5 1 dry weight) with soybean (Glycine max (Linn.) Merr.) maize (Zea mays L.). The results show that PBAT-MP accumulation negatively affects growth, alter activities, which may then constrain C/N cycling potential yields. For soybean, total length, surface area biomass decreased by 34 %- 58 54 25 40 at harvesting stage compared CK, respectively. negative PBAT-MPs roots were greater than roots. 37 71 33 24 64 tasseling stage, respectively (p < 0.05). Furthermore, statistical analysis data indicates inhibition was mediated significantly different impacts addition C-enzyme (β-xylosidase, cellobiohydrolase, β-glucosidase) N-enzyme (leucine-aminopeptidase, N-acetyl-β-glucosaminidase, alanine aminotransferase) rhizosphere non-rhizosphere soil, possibly due interactions plant-specific exudates microbial communities. These findings risks posed plant-soil system, suggest should be applied caution.

Язык: Английский

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Comparative analysis and prediction of cation exchange capacity via summation: influence of biochar type and nutrient ratios

Frontiers in Soil Science, Год журнала: 2024, Номер 4

Опубликована: Март 27, 2024

Introduction Enhancing soil cation exchange capacity (CEC) is of paramount importance for sustainable agriculture and ecosystem health. This study investigated the pivotal role biochar in altering CEC challenges conventional assumptions about universal effects application. Methods Contrasting types, one with a low ash content 4.4% (switchgrass-derived biochar, SGB) other high 45.9% (poultry litter-derived PLB) were used. Two experiments treated increasing application rates conducted: without plants grown ryegrass. Effective (summation method) was determined by two extraction methods: Mehlich-3 (M3) ammonium acetate (AA). Results discussion The SGB decreased 27% on average (from both experiments) from lowest to highest rate application, while PLB significantly increased 91%. highlights critical properties influencing dynamics. In second experiment, ryegrass cultivation revealed greater calcium magnesium/potassium ratio ([Ca+Mg]/K) than only plant growth biochar-amended soils. ratios optimum production ranged 82‒86 69‒74 (AA), which translated 88:11:1 Ca:Mg:K percent base saturation ratios. Moreover, predictive models estimation after successfully developed based initial CEC. However, M3 more reliable AA such predictions mainly because it successful predicting nutrient availability biochar. These offer promising tool informed management decisions. Conclusion research emphasizes feedstock, elucidates growth, provides practical means anticipate changes post-biochar

Язык: Английский

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Mechanisms of biochar-based organic fertilizers enhancing maize yield on a Chinese Chernozem: Root traits, soil quality and soil microorganisms

Environmental Technology & Innovation, Год журнала: 2024, Номер 36, С. 103756 - 103756

Опубликована: Июль 18, 2024

The Chinese Chernozems face extreme challenges of soil degradation and crop productivity decline. Biochar-based organic fertilizer (BOF) is effectively applied to improve yield quality. Nonetheless, the mechanisms involved in enhancement interaction with root traits, quality, microorganisms after BOF application remain unclear. Herein, a two-year field experiment three rates [3.0 Mg ha−1 (BOF3), 6.0 (BOF6), 9.0 (BOF9)] was conducted evaluate impact on microorganisms, no as control treatment (CK). Compared CK, increased maize by 9.1 ∼ 32.0 % second year application, highest (16.1 ha−1) obtained BOF6. plant growth index 29.7 98.9 %, mainly attributed increase volume (2.4 57.4 %), aboveground biomass (31.4 44.0 nitrogen (N) uptake (123.2 216.0 %). quality not only topsoil (27.7 31.1 %) but also subsoil (22.7 25.1 BOF, particularly two (BOF6 BOF9). This ascribed notable microbial carbon, total N, NH4+-N, N-acquiring enzyme activity (normalized leucine aminopeptidase alkaline phosphatase). Moreover, abundance Actinobacteria, Mortierellomycota at 0–40 cm, Chloroflexi 0–20 Acidobacteriota, Ascomycota 20–40 which confirmed their key roles activating nutrient subsequent enhancing stimulating growth. Overall, biochar-based rate promising regime enhance regulating keystone taxa, thereby boosting Chernozem soil.

Язык: Английский

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Biochar and organic fertilizer drive the bacterial community to improve the productivity and quality of Sophora tonkinensis in cadmium-contaminated soil

Frontiers in Microbiology, Год журнала: 2024, Номер 14

Опубликована: Янв. 8, 2024

Excessive Cd accumulation in soil reduces the production of numerous plants, such as Sophora tonkinensis Gagnep., which is an important and widely cultivated medicinal plant whose roots rhizomes are used traditional Chinese medicine. Applying a mixture biochar organic fertilizers improved overall health Cd-contaminated increased yield quality . However, underlying mechanism between this mixed fertilization improvement remains uncovered. This study investigated effect fertilizer application (BO, to ratio 1:2) on growth soil. BO significantly reduced total content (TCd) rhizosphere water content, nutrient levels, enzyme activities Additionally, α diversity bacterial community had been after treatment. Soil pH, carbon dissolved were main reasons for fluctuation dominant species. Further investigation demonstrated that abundance variable microorganisms, including Acidobacteria, Proteobacteria, Bacteroidetes, Firmicutes, Chloroflexi, Gemmatimonadetes, Patescibacteria, Armatimonadetes, Subgroups_ 6, Bacillus Bacillus_ Acidiceler , was also changed All these alterations could contribute reduction and, thus, increase biomass secondary metabolites (matrine oxymatrine) Our research co-application has potential enhance productivity plants by regulating microorganisms

Язык: Английский

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A comparative study of fresh and residual biochar effects on wheat growth and yield metrics

EURASIAN JOURNAL OF SOIL SCIENCE (EJSS), Год журнала: 2025, Номер 14(2), С. 158 - 177

Опубликована: Март 26, 2025

Biochar is a highly stable carbon compound produced through pyrolysis, and it has been widely studied for its potential to enhance soil fertility sequestration. However, the impact of fresh residual biochar not thoroughly explored. Therefore, comparative study on were conducted at filed conditions wheat cultivation, using randomized block design. A (S1), previous season crop (S2) two old (S3) with nine different treatments varied amounts rice husk straw along fertilizers (recommended doses N, P, K) considered in triplicate. Result clearly indicates that application significantly improved plant height, leaf area, dry biomass plant, internodal length, node & internode diameter, as well biological yield, grain yield crop. S1 had most significant growth yield-attributing characteristics compared S2 S3, even higher doses. In S1, results observed rate 5 tons/ha, while showed maximum 10 tons/ha. highest was recorded dose 15 The present findings conclusively efficiency agricultural production succeeding

Язык: Английский

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Salt stress amelioration and nutrient strengthening in spinach (Spinacia oleracea L.) via biochar amendment and zinc fortification: seed priming versus foliar application

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Июль 1, 2024

Abstract Soil salinity is a major nutritional challenge with poor agriculture production characterized by high sodium (Na + ) ions in the soil. Zinc oxide nanoparticles (ZnO NPs) and biochar have received attention as sustainable strategy to reduce biotic abiotic stress. However, there lack of information regarding incorporation ZnO NPs ameliorate stress (0, 50,100 mM). Therefore, current study aimed investigate potentials application (priming foliar) alone combination on growth nutrient availability spinach plants under Results demonstrated that at higher rate (100 mM) showed maximum retardation inducing oxidative stress, resulted reduced photosynthetic availability. enhanced growth, chlorophyll contents gas exchange parameters improving antioxidant enzymes activity While, significant more pronounced effect was observed combined treatments amendment. More importantly, foliar significantly Na root 57.69%, leaves 61.27% compared respective control. Furthermore, were also found treatment biochar. Overall, proved be an efficient alleviate improve crop quality We inferred effectual status mitigation than priming

Язык: Английский

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Contrasting maize responses to soil phosphorus and potassium availability driven by biochar under reduced irrigation

Plant and Soil, Год журнала: 2024, Номер unknown

Опубликована: Июль 4, 2024

Abstract Background and aims Biochar is increasingly recognized for its potential to enhance soil water retention improve fertility in agricultural systems; however, few studies have evaluated the effects of biochar on nutrients from an integrated perspective. This study investigate how affects phosphorus (P) potassium (K) availability their plant growth, especially under reduced irrigation conditions. Methods Maize plants were grown split-root pots with full (FI), deficit (DI) alternate partial root-zone drying (PRD) 2% (w/w) softwood (SWB) wheat-straw (WSB) three successive growth cycles. Results WSB amendment decreased P resulted a decrease content. However, significantly enhanced K inducing higher content irrigation, thereby enhancing biomass harvest index maize irrespective cycles, PRD. use efficiency due lower initial Adding SWB by inhibiting second cycle, which was mitigated PRD root growth. Conclusion Collectively, despite negative content, combined could be promising strategy sustainable production drought stress.

Язык: Английский

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Biochar Effectively Promoted Growth of Ardisia crenata by Affecting the Soil Physicochemical Properties

Plants, Год журнала: 2024, Номер 13(13), С. 1736 - 1736

Опубликована: Июнь 23, 2024

Biochar is regarded as a soil improvement material possessing superior physical and chemical properties that can effectively enhance plant growth. However, there exists paucity of research examining the efficacy biochar in supplanting traditional materials its subsequent impact on growth

Язык: Английский

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Mitigation of Drought Stress for Quinoa (Chenopodium quinoa Willd.) Varieties Using Woodchip Biochar-Amended Soil

Plants, Год журнала: 2024, Номер 13(16), С. 2279 - 2279

Опубликована: Авг. 15, 2024

Drought stress deteriorates agro-ecosystems and poses a significant threat to crop productivity food security. Soil amended with biochar has been suggested mitigate water stress, but there is limited knowledge about how affects the physiology vegetative growth of quinoa plants under soil deficits. We grew three (

Язык: Английский

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Heavy metal immobilization and radish growth improvement using Ca(OH)2-treated cypress biochar in contaminated soil

Chemosphere, Год журнала: 2024, Номер 360, С. 142385 - 142385

Опубликована: Май 20, 2024

Heavy metal contamination poses a significant threat to soil quality, plant growth, and food safety, directly affects multiple UN SDGs. Addressing this issue offering remediation solution are vital for human health. One effective approach immobilizing heavy metals involves impregnating cypress chips with calcium hydroxide (Ca(OH)

Язык: Английский

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