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Effects of Polypropylene Microplastics and Aging Time on Nitrogen and Phosphorus Dynamics and Enzyme Activities in Soil
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This study found that microplastic pollution from plastic packaging and products (polypropylene, a common plastic) changes how soil handles key nutrients like nitrogen and phosphorus, and these effects shift the longer the plastic sits in the soil. This matters because soil health directly affects the food we grow, if microplastics are disrupting the natural nutrient cycles that plants depend on, it could impact crop quality and the safety of our food supply over time.
To investigate the effects of polypropylene microplastics (PP MPs) on soil nitrogen and phosphorus dynamics as well as enzyme activities, an incubation experiment was conducted using different PP MPs mass fractions (CK, 5%, and 10%) and aging times (7, 15, 25, 35, and 45 d). The results showed...
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Microplastics affect C, N, and P cycling in natural environments: Highlighting the driver of soil hydraulic properties
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This study found that common microplastics like polyethylene and polypropylene significantly change how soil handles water and nutrients by increasing water content, reducing soil density, and altering bacterial communities involved in nitrogen and carbon cycling. These changes affected how nutrients are stored in soil, with increases of 12 to 93 percent in nitrogen and carbon storage depending on the plastic type and amount. The findings suggest microplastic pollution could disrupt the fundamental soil processes that support food production.
Effects of Polypropylene and Polyethylene Terephthalate Microplastics on Nutrient Dynamics in Agricultural Soils: A Laboratory Incubation Study from Two Regions in Bangladesh
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Scientists found that two common plastics (from food packaging and containers) can change nutrient and mineral levels in farm soil, at least in lab tests. This matters because soil health affects crop growth and our food supply, but more research is needed before we know how big a problem this is in real farm fields.
Short-term effects of polyethene and polypropylene microplastics on soil phosphorus and nitrogen availability
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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.
Impact of Microplastic Contamination on Phosphorus Availability, Alkaline Phosphatase Activity, and Polymer Degradation in Soil
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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.
Microplastics reshape rhizosphere microbial communities and nutrient cycling in tomato agroecosystems
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Tiny plastic particles from pollution are seeping into farm soil and disrupting the natural microbes that help tomato plants absorb nutrients like nitrogen and phosphorus. This research found that different types of plastic (like those from packaging and pipes) throw off soil chemistry and bacterial activity in ways that could affect how healthy and nutrient-rich our food crops grow. While this study looked at soil, not food safety directly, it adds to growing evidence that microplastic pollution may be quietly affecting the food system from the ground up.
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