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61,005 resultsShowing papers similar to Discrepant effects of microplastics on soil phosphorus availability under different phosphorus fertilizer applications
ClearEffects of microplastic properties and dissolved organic matter on phosphorus availability in soil and aqueous mediums
Researchers studied how different types of microplastics from agricultural mulching films affect phosphorus availability in soil and water. They found that both conventional plastics like polyethylene and biodegradable plastics like polylactic acid significantly reduced available phosphorus in soil, with smaller and more concentrated particles causing the greatest reductions. The study suggests that microplastic accumulation in agricultural soils may impair nutrient availability for crops.
Effect of different microplastics on the mobilization of soil inorganic phosphorus by exomycorrhizal fungi
Researchers examined how different microplastic types affect soil inorganic phosphorus mobilization, finding that polymer type and particle size influence phosphorus release from soil minerals, with implications for nutrient cycling in plastic-contaminated soils.
Impact of Microplastic Contamination on Phosphorus Availability, Alkaline Phosphatase Activity, and Polymer Degradation in Soil
Researchers studied how different types of microplastics at various concentrations affect phosphorus availability and enzyme activity in soil. They found that microplastics altered phosphorus cycling both by directly supplying phosphorus in some cases and by changing microbial enzyme function. The study suggests that microplastic contamination could disrupt soil nutrient dynamics important for maintaining agricultural productivity.
Short-term effects of polyethene and polypropylene microplastics on soil phosphorus and nitrogen availability
Researchers examined the short-term effects of polyethylene and polypropylene microplastics on soil nutrient cycling, finding that these particles can alter the availability of phosphorus and nitrogen depending on microplastic size and fertilization conditions.
Insight into the transformation of phosphorus in soil affected by microplastics: A review
This meta-analysis found that microplastics significantly decrease phosphorus availability in soil by 7-56%, driven by particle characteristics, soil properties, and exposure duration. Microplastics alter phosphorus cycling through adsorption, changes in soil chemistry, shifts in microbial communities, and modified phosphatase activity, with implications for farmland fertility management.
ConventionalandBiodegradable Microplastics BothImpair Soil Phosphorus Cycling and Availability via Microbial Suppression
This 150-day soil incubation study compared how conventional polyethylene and biodegradable polylactic acid microplastics affect microbially-mediated phosphorus cycling. Both MP types suppressed phosphorus-cycling microbial activity, reducing soil phosphorus availability — with biodegradable PLA showing comparable disruption to conventional PE.
Conventional and Biodegradable Microplastics Both Impair Soil Phosphorus Cycling and Availability via Microbial Suppression
Researchers conducted a 150-day experiment comparing the effects of conventional polyethylene and biodegradable polylactic acid microplastics on soil phosphorus cycling. Both types of microplastics reduced available phosphorus by approximately 15% and suppressed key phosphorus-cycling bacteria and enzyme activity. The findings challenge the assumption that biodegradable plastics are environmentally benign, showing they disrupt soil nutrient cycles similarly to conventional plastics.
The effects of microplastics on crop variation depend on polymer types and their interactions with soil nutrient availability and weed competition
Researchers investigated how different types of microplastics interact with soil nutrient availability and weed competition to affect crop growth. The study found that the effects of microplastics on plant performance depend on the polymer type and are modulated by fertilization levels and competition from weeds, suggesting that real-world agricultural impacts of microplastic pollution may be more complex than laboratory studies indicate.
Effects of microplastics pollution on plant and soil phosphorus: A meta-analysis
Across 781 observations from 73 studies, microplastics significantly reduced plant phosphorus uptake and soil available phosphorus while increasing soil phosphorus leaching. Biodegradable microplastics caused stronger negative effects on soil phosphorus than conventional plastics, and impacts worsened with higher concentrations and longer exposure times.
Microplastics Influence Phosphate Adsorption in Volcanic Ash Soil
Researchers found that adding polyethylene microplastics to volcanic ash soil slightly increased the soil's ability to hold phosphorus but also made phosphorus easier to wash away, potentially reducing its availability to plants. This suggests microplastic contamination in farmland soils could quietly alter nutrient cycling in ways that affect crop growth.
Organic fertilizer facilitates the soil microplastic surface degradation and enriches the diversity of bacterial biofilm
Researchers found that organic fertilizer application facilitates surface degradation of microplastics in soil and enriches the diversity of bacterial biofilms on plastic surfaces, suggesting fertilizer use influences microplastic behavior and fate in agricultural soils.
Divergent mechanisms of labile phosphorus accumulation in paddy soils under TPU microplastics versus manure-derived hydrochar: roles of dissolved organic matter and bacterial communities
Scientists found that tiny plastic particles and a charcoal-like material called hydrochar can increase the amount of phosphorus available to rice plants in soil by 14-21%. Both materials work by changing the soil's chemistry and the helpful bacteria that live in it, but they do it in different ways. This matters because phosphorus is essential for growing healthy crops, and understanding how plastic pollution affects soil could help farmers maintain productive rice fields.
Effect of Polyvinyl Chloride Microplastics on Bacterial Community and Nutrient Status in Two Agricultural Soils
Polyvinyl chloride microplastics at environmentally relevant concentrations did not broadly alter bacterial diversity in two agricultural soils over 35 days, but did significantly change available phosphorus levels and shifted the abundance of specific bacterial genera. The results suggest that microplastic pollution can subtly reshape nutrient cycling and microbial community composition in farmland soils.
Quantification and identification of microplastics in organic fertilizers: the implication for the manufacture and safe application
Researchers measured microplastic contamination in 23 commercial organic fertilizers, finding widespread presence at levels that could meaningfully contribute to agricultural soil pollution when fertilizers are applied. The results raise concerns about organic fertilizers as an underappreciated pathway for microplastics entering farm soils and the food system.
Soil nutrient levels regulate the effect of soil microplastic contamination on microbial element metabolism and carbon use efficiency
Researchers conducted greenhouse experiments to examine how different types of microplastics in soil affect microbial nutrient metabolism and carbon use efficiency. They found that degradable polylactic acid microplastics stimulated microbial activity differently than non-degradable polyethylene, and that soil nutrient levels played a key role in regulating these effects. The study suggests that understanding the interaction between microplastics and soil nutrients is critical for predicting impacts on soil carbon cycling.
Polyethylene microplastic can adsorb phosphate but is unlikely to limit its availability in soil
Researchers tested whether polyethylene microplastics can adsorb phosphate, a key plant nutrient, and found that while adsorption does occur, it is substantially weaker than phosphate binding to soil. The study compared pristine and UV-weathered microplastics across various pH and ionic strength conditions. Evidence indicates that even at concentrations much higher than those found in agricultural fields, microplastics are unlikely to significantly reduce phosphate availability to plants.
Effects of microplastics and carbon nanotubes on soil geochemical properties and bacterial communities
In a 100-day soil experiment, researchers found that both conventional polyethylene and biodegradable polylactic acid microplastics significantly altered soil chemistry, nutrient levels, and bacterial communities. At higher concentrations, microplastics reduced nitrogen and phosphorus availability and changed the types of bacteria present, which could affect soil fertility. These findings matter because healthy soil bacteria are essential for growing the food we eat, and widespread microplastic contamination could quietly undermine agricultural productivity.
Microplastic contamination of organic fertilisers applied to agricultural soils
This study examined microplastic contamination in organic fertilizers applied to agricultural soils, finding plastic particles in multiple fertilizer types. Organic fertilizers derived from sewage sludge or compost can introduce microplastics into farmland, potentially contaminating crops and groundwater.
Nonlinear microbial nutrient limitation responses to biodegradable vs. conventional microplastics under long-term agricultural management
Researchers sampled long-term agricultural plots to compare how biodegradable and conventional microplastics affect microbial nutrient limitation in soil. Both types of MPs altered microbial metabolism, with biodegradable MPs in some cases causing greater disruption to nutrient cycling than conventional plastics.
Chlorpyrifos degradation and its impacts on phosphorus bioavailability in microplastic-contaminated soil
This study found that microplastics made from polylactic acid (a biodegradable plastic) in soil changed how the pesticide chlorpyrifos breaks down and altered the availability of phosphorus, a key nutrient for crops. The microplastics slowed pesticide degradation and affected soil enzyme activity, which could impact both food safety and crop nutrition. The findings show that even biodegradable microplastics can disrupt important soil processes that affect the food supply.
Effects of Microplastics and Organic Fertilizer Regulation on Soil Dissolved Organic Matter Evolution
This study examined how microplastic addition to soil affects dissolved organic matter (DOM) evolution, focusing on the interactions between microplastics as carbon sources and organic fertilizer. Microplastics altered DOM composition and quantity, with effects on soil carbon cycling that varied by plastic type and organic fertilizer combination, suggesting complex interactions between plastic pollution and soil amendment practices.
Microplastic effects on soil organic matter dynamics and bacterial communities under contrasting soil environments
Researchers compared microplastic effects on soil organic matter dynamics and bacterial communities across contrasting soil environments, finding that the type of microplastic polymer and soil conditions together determine whether microbial activity and carbon cycling are stimulated or suppressed.
Multi-omics reveals different impact patterns of conventional and biodegradable microplastics on the crop rhizosphere in a biofertilizer environment
Researchers used advanced multi-omics techniques to compare how conventional polyethylene microplastics and biodegradable plastic microplastics affect the root zone of crops grown with biofertilizer. They found that both types disrupted the soil microbial community, but through different mechanisms, with biodegradable plastics unexpectedly causing more changes to the bacterial community structure. The study suggests that even biodegradable agricultural plastics may interfere with the effectiveness of biofertilizers in soil.
Microplastics change the leaching of nitrogen and potassium in Mollisols
Researchers found that polyethylene microplastics at varying concentrations and sizes altered the leaching of nitrogen and potassium in agricultural Mollisols, with effects depending on microplastic size and concentration thresholds, raising concerns about nutrient cycling disruption in plastic-contaminated farmland soils.