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61,005 resultsShowing papers similar to Effect of PBAT Biodegradable Mulch Film Extract on Seed Germination and Seedlings Metabolism of Tobacco
ClearImpact of plastic mulch and their associated leachates on seed germination
This study examined how plastic mulch films and their chemical leachates affect seed germination, finding that both the physical presence of plastic fragments and dissolved additives from weathered mulch can reduce germination rates in exposed crops.
Negative effects of poly (butylene adipate-co-terephthalate) microplastics on Arabidopsis and its root-associated microbiome
Researchers investigated the effects of poly(butylene adipate-co-terephthalate) (PBAT) microplastics on Arabidopsis thaliana growth and root-associated microbiome composition in agricultural soil, at a concentration of 2% by weight. Results revealed negative effects on plant growth and alterations to the rhizosphere microbial community, raising concerns about the ecological safety of this widely used biodegradable mulch film material.
Poly (butylene adipate terephthalate) degradation products and their influence on plant progression and soil microbial diversity
This study examined how the biodegradable plastic PBAT degrades in soil and what effects its degradation products have on Chinese cabbage growth and soil microbial diversity, finding that degradation varied with particle size and that soil microbiomes shifted as PBAT broke down. The findings matter for assessing whether "biodegradable" mulch films truly disappear benignly or leave behind microplastic fragments and microbial disruption in agricultural soils.
Macro- and microplastics leachates: Characterization and impact on seed germination
This study found that chemicals leaching out of plastic mulch films used in farming — not the plastic particles themselves — are what harm seed growth. Biodegradable plastics actually released higher concentrations of these chemicals than conventional plastics. Many of the leached compounds have no safety regulations, raising concerns about the chemicals that microplastics release into soil where food is grown.
Field test on the biodegradation of poly(butylene adipate-co-terephthalate) based mulch films in soil
Researchers buried four types of supposedly biodegradable plastic mulch films — used in farming to suppress weeds — in agricultural soil for over two years and found that all four still left behind microplastic fragments. This shows that even biodegradable plastics can accumulate in soil if used repeatedly each growing season.
Negative effects of poly (butylene adipate-co-terephthalate) microplastics on Arabidopsis and its root-associated microbiome
Researchers investigated the effects of poly(butylene adipate-co-terephthalate) (PBAT) biodegradable microplastics on Arabidopsis thaliana and its root-associated microbiome, finding that PBAT-MPs at tested concentrations in agricultural soil caused negative impacts on plant growth and altered the composition of root-zone microbial communities.
Negative effects of poly(butylene adipate-co-terephthalate) microplastics on Arabidopsis and its root-associated microbiome
Researchers found that the biodegradable plastic PBAT had greater inhibitory effects on Arabidopsis growth than conventional LDPE microplastics, disrupting photosynthesis and altering root-associated microbial communities in ways that suggest biodegradable plastics are not necessarily safer for soil ecosystems.
Macro- and microplastic leachates show a slightly toxic effect on seed germination of cotton
Researchers tested the effects of leachates from macro- and microplastics of three different polymer types and degradation states on cotton seed germination, finding slight but measurable phytotoxicity from degradable mulching film leachates, with effects varying by plastic type and size.
Exposure of Bromus hordeaceus to fossil- and plant-based micro- and nanoplastics: Impacts and plant-plastic interactions vary depending on polymer type and growth phase
Experiments with the grass Bromus hordeaceus showed that both fossil-based polyethylene and plant-based PBAT micro- and nanoplastics affected seed germination and plant development, with polymer type and growth phase determining the nature and magnitude of effects.
Adsorption of neonicotinoid insecticides by mulch film-derived microplastics and their combined toxicity
Researchers studied how microplastics from agricultural mulch films interact with common insecticides used on crops. They found that biodegradable plastic (PBAT) microplastics adsorbed more pesticide than conventional polyethylene microplastics, and that aging increased this adsorption capacity. When combined, the microplastics and insecticides were more toxic to soil organisms than either pollutant alone, suggesting an underappreciated risk in agricultural soils.
Exposure of Bromus hordeaceus to fossil- and plant-based micro- and nanoplastics: Impacts and plant-plastic interactions vary depending on polymer type and growth phase
Experiments with the grass Bromus hordeaceus showed that both fossil-based polyethylene and plant-based PBAT micro- and nanoplastics affected seed germination and plant development, with impacts varying by polymer type and growth phase.
Methodology development: evaluation of structural, thermal, and mechanical properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends for biodegradable mulch
Researchers developed a methodology for formulating and characterizing biodegradable PLA/PBAT mulch films as alternatives to conventional polyethylene mulch that contributes to microplastic pollution in agriculture. The proposed approach covers scalable formulation, processing, and comprehensive characterization aligned with regulatory guidelines and industry standards for biodegradable mulch performance.
Development of mulch films from biodegradable polymer and agro-industrial waste
Biodegradable mulch films were developed from poly(butylene-adipate-co-terephthalate) (PBAT) incorporating soybean and peanut hull agro-industrial wastes as alternative to conventional plastic mulches. The agro-waste additives improved film hydrophobicity but increased water absorption values, with mechanical and thermal properties characterized across different formulations.
Sorption Behavior of Polylactic Acid/Poly(butylene adipate‐co‐terephtalate) Mulching Film Toward Active Substances
Researchers examined the sorption behavior of biodegradable polylactic acid/poly(butylene adipate-co-terephthalate) mulching films toward agricultural active substances, comparing them to conventional low-density polyethylene films. The study assessed how these bio-based mulch materials interact with pesticides and other chemicals, with implications for soil contamination and microplastic alternatives in agriculture.
Influence of thermo-oxidatively aged mulch debris on the seedling emergence of field pea (Pisum sativum var. arvense L.) seeds
Researchers used flame-spraying to generate thermo-oxidatively aged polyethylene microplastics and tested their effects on crop seedling emergence, finding that aged MP debris from mulch film degradation can inhibit germination and early plant growth in dryland agricultural soils.
Effects of Microplastics on Growth and Physiological Characteristics of Tobacco (Nicotiana tabacum L.)
Researchers found that low-density polyethylene microplastics inhibited tobacco plant growth in hydroponics, with high concentrations (1,000 mg/L) reducing chlorophyll content, disrupting antioxidant defenses, and lowering overall biomass.
The fate of post-use biodegradable PBAT-based mulch films buried in agricultural soil
Scientists tracked the breakdown of a biodegradable mulch film in farm soil over 16 months and found that while the film lost more than half its surface area, it released microplastics into the surrounding soil during the process. About 17-23% of the original film material was still recoverable from the soil after nearly 500 days. The study shows that even biodegradable plastics can be a source of microplastic contamination in agricultural soils.
Impact of buried debris from agricultural biodegradable plastic mulches on two horticultural crop plants: Tomato and lettuce
Field-weathered biodegradable plastic mulch debris was added to soil in mesocosm experiments with tomato and lettuce to assess phytotoxicity. Field-weathered fragments caused different effects on plant growth than pristine or artificially weathered materials, with implications for how biodegradable mulches should be tested and regulated for agricultural safety.
Quantitative methodology for poly (butylene adipate-co-terephthalate) (PBAT) microplastic detection in soil and compost
Researchers developed a quantitative methodology for detecting poly(butylene adipate-co-terephthalate) (PBAT) microplastics in soil and compost matrices, addressing the need to monitor biodegradable mulch film fragmentation and mineralization in agricultural environments. The method enabled accurate measurement of PBAT microplastic concentrations across environmentally relevant matrices, providing a tool to assess the fate of biodegradable plastics in agroecosystems.
Dosages of Biodegradable Poly(butylene adipate-co-terephthalate) Microplastics Affect Soil Microbial Community, Function, and Metabolome in Plant–Soil System
Researchers examined how different concentrations of biodegradable PBAT microplastics affect soil microbial communities and lettuce growth. They found that while low concentrations had minimal impact, higher doses significantly altered soil microbial diversity, metabolic functions, and the chemical profile of the soil. The findings suggest that even biodegradable plastic mulch residues can disrupt soil ecosystems when they accumulate at higher levels.
Biodegradable PBAT microplastics adversely affect pakchoi (Brassica chinensis L.) growth and the rhizosphere ecology: Focusing on rhizosphere microbial community composition, element metabolic potential, and root exudates
Researchers compared biodegradable PBAT plastic microplastics with conventional polyethylene microplastics in soil and found that the biodegradable version actually caused more harm to plant growth and soil health. PBAT microplastics reduced nutrient availability, disrupted the soil microbial community, and altered root chemistry more than conventional plastic. This finding challenges the assumption that biodegradable plastics are always safer for the environment.
Response of soybean and maize roots and soil enzyme activities to biodegradable microplastics contaminated soil
Researchers tested how biodegradable microplastics from PBAT plastic film affect soybean and maize root growth and soil health. They found that higher concentrations of these microplastics in soil reduced root length, surface area, and biomass in soybean by up to 34%, while also altering key soil enzyme activities. The study suggests that even biodegradable plastic residues in agricultural soil may disrupt plant growth and nutrient cycling.
Ecological risk assessment of PBAT/PLA mulch-derived microplastics on vegetable growth using a species sensitivity distribution approach
Researchers assessed the ecological risks of microplastics from biodegradable PBAT/PLA mulch films on eight vegetable species commonly grown in Southwest China. They found that these biodegradable microplastics negatively affected plant growth across all measured endpoints, with shoot biomass being the most sensitive indicator. The study suggests that even biodegradable mulch alternatives can pose meaningful ecological risks to crop production when they fragment into microplastics in agricultural soils.
Effects of a mixture of mulching film microplastics on soil properties, microbial activities, and plants in terrestrial mesocosms with and without earthworms
Researchers assessed the effects of a mixture of conventional polyethylene and biodegradable PBAT mulching film microplastics on soil ecosystems using terrestrial mesocosms. The study found that microplastics increased soil compaction and stimulated microbial respiration while reducing nitrogen cycling, and although plant growth appeared unaffected, biochemical analysis revealed oxidative stress responses in lettuce at the molecular level.