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Mulching Sheet from Agro Waste
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Researchers turned farm leftovers—like coconut coir, dry leaves, and crop waste—into biodegradable mulch sheets that could replace plastic sheeting farmers use to cover soil. This matters because plastic mulches break down into microplastics that contaminate soil, crops, and eventually our food supply, so a natural alternative that still retains moisture and blocks weeds could mean cleaner farmland and less plastic ending up on our plates. The approach is also cheap and reuses waste, making it a practical option for farmers to adopt.
The project “Mulching Sheet from Agro Waste” focuses on developing an eco-friendly and cost-effective alternative to conventional plastic mulching sheets. Agricultural wastes such as coconut coir, dry leaves, and crop residues are utilized as raw materials to produce biodegradable mulching sheets. The primary objective is to reduce environmental pollution caused by plastic mulches and promote sustainable farming practices. The prepared sheet helps in moisture retention, weed suppression, and soil temperature regulation, thereby improving crop productivity. Natural binders are used to enhance the strength and durability of the sheet. The methodology involves collection, cleaning, drying, grinding, and sheet formation processes. This project supports waste management by converting agricultural residues into useful products. It is especially beneficial for farmers due to its low cost, easy availability of materials, and environmentally safe nature, making it a sustainable solution for modern agriculture
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Biodegradable Film Mulching Increases Soil Carbon Sequestration and Microbial Network Complexity in a Long-Term Field Study
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Scientists studied biodegradable plastic mulch (the plastic sheeting farmers use to cover soil) and found it helps soil store more carbon and support healthier microbial communities compared to regular plastic mulch. However, the biodegradable plastic still breaks down into microplastics in the soil, raising questions about long-term environmental effects. This matters because while biodegradable farm plastics may help fight climate change by storing carbon, we still need to understand how the microplastics they leave behind might affect our food system.
Potentials of synthetic biodegradable mulch for improved livelihoods on smallholder farmers: a systematic review
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This systematic review evaluates biodegradable mulch as an alternative to conventional plastic mulch in farming, which is a major source of microplastic contamination in agricultural soils. Switching to biodegradable options could help reduce the buildup of microplastics in the soil where food crops are grown.
Emerging Trends in Biodegradable Polymers Derived From Vegetable Waste for Sustainable Agriculture: Challenges and Opportunities
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This review paper looks at how the plastic used in farming (like mulch films) breaks down over time and leaves behind tiny plastic bits in soil — bits that can mess with soil health and eventually make their way into our food. The researchers highlight biodegradable plastics made from vegetable scraps as a promising swap, since they break down naturally into harmless substances instead of lingering as microplastics, though making them affordable and reliable enough for widespread farm use is still a work in progress.
KUPAS: an innovation in biocomposite sheet mulch based on cassava peel (Manihot esculenta) and PCL (polycaprolactone) for optimising agricultural productivity
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Scientists created a new plant-based mulch (a covering used to protect crops) made from cassava peels and a biodegradable plastic, designed to replace the plastic mulch farmers currently use. Unlike regular plastic mulch, which breaks down into microplastics that pollute soil and can enter our food supply, this new material passed safety tests for water absorption, soil pH, and biodegradation, meaning it works well and breaks down safely without harming soil health. This matters because reducing microplastics in farmland could mean less of these tiny plastic particles ending up in the food we eat.
Promising biodegradable composite derived from corn straw fiber and waste Polyethylene
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Researchers developed a biodegradable composite material from corn straw fibers and waste polyethylene as an agricultural mulch alternative, finding that incorporating agricultural crop residues improved the composite's mechanical and biodegradable properties. This approach simultaneously addresses plastic waste and agricultural residue disposal while reducing persistent plastic mulch contamination of farmland soils.
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