Microplastics, tiny plastic particles less than 5mm in size, are increasingly being found in agricultural soil, raising concerns about their impact on crop growth and food security. A recent study published in Nature Reviews Earth & Environment found that farms receive more microplastic pollution than oceans, mainly through irrigation water, compost, fertilizers, and plastic mulch. These particles can alter soil structure, reduce water retention, and hinder root growth, potentially lowering crop yields. Scientists warn that microplastics may also absorb and carry toxic chemicals, contaminating food plants and posing health risks to consumers.
According to research from the University of Manchester, microplastics have been detected in common crops like wheat, lettuce, and carrots, raising concerns about their entry into the human food chain. The United Nations Environment Programme (UNEP) has called for urgent action to regulate plastic use in agriculture and develop biodegradable alternatives. Some countries, including France and Germany, have already imposed restrictions on plastic-based fertilizers and mulching films. However, experts argue that more research is needed to fully understand the long-term impact of microplastics on soil health, crop productivity, and food safety. More