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agriculturalsoils, etc ; composts; environment; light microscopy; microplastics; soil fertility; soil pollution; topsoil; wastes; Show all 9 Subjects
Abstract:
... Compost application is a widely recommended agricultural practice to improve soil fertility. As almost all compost is likely polluted with plastic we hypothesize that compost application is a major input pathway for microplastics (MPs) into agricultural soil. To attribute the plastic load of soil to compost application, we investigated MPs in topsoil (0–30 cm) of a controlled, long-term fertilizer ...
agriculturalsoils, etc ; coastal plains; coasts; color; environment; land use; microplastics; orchards; pollution; population density; secondary forests; China; Show all 12 Subjects
Abstract:
... Microplastic pollution is an issue of major environmental concern worldwide. Land-use type may affect the abundance, polymer types, and distribution characteristics of soil microplastics but their distribution remains unknown on the coastal plain of east China. Here, the abundance of microplastics in farmland (FL), plantation (P), and orchard/secondary forest (OSF) soils was determined on the east ...
agriculturalsoils, etc ; carcinogenicity; food chain; food security; human health; lead; pollutants; risk; soil pH; soil quality; wastes; wheat; Show all 12 Subjects
Abstract:
... Heavy metals (HMs) from smelters pose severe challenges to the environmental soil quality of surrounding farmlands, and threaten human health through the food chain. This study explored the environmental effects of smelting activities on farmland soil, and additionally assessed the enrichment, transfer and health risk of HMs in soil-wheat systems. Multiple characterization results were combined to ...
... Enset (Ensete ventricosum) is an important co staple crop for greater than 20 million people in southern and southwestern Ethiopia. In this study, the concentration of selected trace metals (Pb, Zn, Hg, Cd, Cu, Ni, Co, Fe, Mn, Cr and Pb) in enset pant, its food product and corresponding soil sampled from Siltie zone, Southern Nations, Nationalities, and Peoples Region of Ethiopia were determined. ...
agriculturalsoils, etc ; corn; data collection; food safety; human health; irrigation; models; pollution; prediction; risk; risk assessment; sewage; soil pH; toxicity; wheat; China; Yellow River; Show all 17 Subjects
Abstract:
... Cadmium (Cd) pollution of agricultural soil is of public concern due to its high potential toxicity and mobility. This study aimed to reveal the risk of Cd accumulation in soil and wheat/maize systems, with a specific focus on the source-specific ecological risk, human health risk and Cd enrichment model. For this we investigated more than 6100 paired soil and grain samples with 216 datasets inclu ...
agriculturalsoils, etc ; citrates; composts; microplastics; phthalates; pollution; Show all 6 Subjects
Abstract:
... Macro-, meso- and microplastic (MAP, MEP, MP) occurrence in compost is an environmental issue whose extent and effects are not yet understood. Here, we studied the occurrence of MAPs, MEPs and MPs in compost samples, and the transfer of hazardous contaminants from plastics to compost and soil. MAPs/MEPs and MPs concentrations in compost were 6.5 g/kg and 6.6 ± 1.5 pieces/kg; from common recommenda ...
agriculturalsoils, etc ; agriculture; electronics; manufacturing; soil compaction; Show all 5 Subjects
Abstract:
... Understanding the propagation process of acoustic waves in the soil is very important for designing high-performance acoustic wave detection devices. In this study, the discrete element method was used to simulate the propagation process of acoustic waves in the soil. A single factor experiment was carried out with soil compression ratio, excitation frequency, and excitation amplitude as factors. ...
agriculturalsoils, etc ; antibiotic resistance; microplastics; phthalates; polyethylene; porosity; Show all 6 Subjects
Abstract:
... The differential effects of microplastics and phthalates released from microplastics on antibiotic resistance genes in soil remain unknown. This study aims to analyze the varying characteristics and driving mechanisms of antibiotic resistance genes in soils amended with high-density polyethylene microplastics (with and without phthalates) through a 60-day microcosm experiment. The results indicate ...
agriculturalsoils, etc ; compression strength; mathematical models; research methods; tillage; Show all 5 Subjects
Abstract:
... The authors have shown that the tillage specific constructive weight affects the working width and penetration ability. In order to increase the working width of the tillage implement, and therefore its performance and economic efficiency as well as its penetration ability, it is preferable to minimize the value of this indicator. It is taken into account that the implement specific structural wei ...
agriculturalsoils, etc ; biochar; deterministic models; environment; soil amendments; wastes; Show all 6 Subjects
Abstract:
... Biochar has been widely advocated due to its special properties and sustainability for agriculture soil amendment. The influencing mechanism of biochar on soil properties is a key aspect of quantifying and predicting its benefits and trade-offs. The contribution of biochar to both environmental and agricultural benefits has been deeply discussed and extensively reviewed, but few reviews have focus ...
agriculturalsoils, etc ; cytotoxicity; genotoxicity; humans; microplastics; soil ecology; soil water; Show all 7 Subjects
Abstract:
... Microplastics (MPs) are plastic particles with lesser than 5 mm in size, and in recent years their accumulation in the soil has given rise to a critical global environmental issue that poses significant consequences for both organisms and ecosystems. This study reviews the available works of literature on the direct and indirect impacts of MPs on crops, as well as their amalgamated impacts when co ...
agriculturalsoils, etc ; adsorption; agricultural management; glyphosate; models; phosphates; soil pH; Argentina; Show all 8 Subjects
Abstract:
... Glyphosate is the most widely used herbicide in Argentina. The strong sorption of glyphosate to the mineral fraction of the soil can be affected by environmental conditions and agricultural management, such as the application of fertilisers. This work aimed to study the effect of pH and the presence of inorganic phosphate on the affinity of glyphosate for nine different surface soils of Argentina. ...
agriculturalsoils, etc ; agroecosystems; biodegradability; microplastics; pollution; polyethylene; research; soil organic carbon; Show all 8 Subjects
Abstract:
... Agricultural microplastic pollution has become a growing concern. Unfortunately, the impacts of microplastics (MPs) on agricultural soil carbon and nitrogen dynamics have not been sufficiently reported. In an attempt to remedy this, we conducted a 105-day out-door mesocosm experiment in a soil-plant system using sandy soils amended with two types of MPs, low-density polyethylene (LDPE-MPs) and bio ...
agriculturalsoils, etc ; biosphere; climate change; denitrification; nitrogen; nitrogen fertilizers; nitrous oxide; Show all 7 Subjects
Abstract:
... PURPOSE: The key environmentally beneficial process that substantially removes reactive nitrogen from biosphere is a complete denitrification. The science of measuring and constraining nitrous oxide (N₂O) emissions has advanced significantly; however, despite several attempts, in situ dinitrogen (N₂) measurement is still a great challenge and is poorly understood due to the high atmospheric N₂ bac ...
agriculturalsoils, etc ; centrifugation; fluorescence microscopy; hydrophilicity; microplastics; oxidation; polyethylene; polypropylenes; polystyrenes; Show all 9 Subjects
Abstract:
... The increasing contamination of the environment with microplastic requires efficient methods for the separation and detection of these plastic particles. In this work, we present a protocol that uses Fenton oxidation to remove biological material, centrifugation to separate microplastics from soil, and Nile Red staining, fluorescence microscopy, and image processing to detect and quantify of micro ...
agriculturalsoils, etc ; Solanum nigrum; biomass; cadmium; hyperaccumulators; maturity stage; phytoremediation; pollution; Show all 8 Subjects
Abstract:
... Solanum nigrum L. is a Cd hyperaccumulator, but the potential for continuous remediation, or different planting methods have not been fully characterized. The potential for continuous phytoremediation of Cd-contaminated farmland soil (2.08 mg kg⁻¹ Cd) by 2 planting methods (flowering harvest twice a year and maturity harvest once a year) was studied in a 3-year pot experiment. The total Cd accumul ...
agriculturalsoils, etc ; groundwater; irrigated farming; irrigation systems; prediction; topsoil; uranium; Vietnam; Show all 8 Subjects
Abstract:
... Groundwater is regularly used for many purposes, such as drinking and agricultural irrigation systems. Still, it contains high levels of radionuclides (e.g., ²³⁸U, ²³²Th, and ²²⁶Ra) that are potentially hazardous to humans and the environment. In this study, activity concentrations of uranium isotopes were analyzed in 15 groundwater samples taken from 15 bored wells in Thu Duc district, Ho Chi Min ...
agriculturalsoils, etc ; Actinomucor elegans; bioremediation; captan; carbendazim; fungi; multivariate analysis; phytotoxicity; zineb; Show all 9 Subjects
Abstract:
... The aim of this work was to isolate fungal strains from phytotoxic agricultural soils, screen them, categorize the most tolerant fungi to three fungicides, and identify them by a molecular approach. In this study, 28 fungal strains were isolated from phytotoxic agricultural soil with intensive use of pesticides. The capacity of fungi to resist and degrade different concentrations of carbendazim, c ...
agriculturalsoils, etc ; gold; humic acids; ion exchange; models; nanorods; oxidation; pH; pollution; Show all 9 Subjects
Abstract:
... Using the Spectral characteristics of gold nanorods to investigate heavy metals Pb in agricultural soils. Studied included: (1) The effects of humic acid on Pb transformation and its formation changing were explored. The laboratory model was established to simulate Pb leaching process in the soil and investigated the change of total Pb content at different layers. (2) The migration and transformat ...
agriculturalsoils, etc ; adsorption; desorption; fosamine; glufosinate; glyphosate; montmorillonite; phosphonates; quartz; rain; runoff; Show all 11 Subjects
Abstract:
... Phosphonate‐based herbicides are extensively used in agriculture. Glyphosate was long considered immobile in soils due to strong complexation with metal oxides, but detection in agricultural effluents and surface waters points to glyphosate mobilization and transport. In particular, mechanisms of glyphosate adsorption and subsequent mobility from runoff‐prone soils enriched in quartz have not been ...