How do agricultural plastic products affect soil quality and crop yields?

Agricultural plastic products, such as mulch films and greenhouse coverings, can have both positive and negative effects on soil quality and crop yields. On the positive side, they help retain soil moisture, increase soil temperature, and suppress weed growth, which can lead to higher crop yields. However, the negative impacts are significant. The degradation of plastics can lead to the formation of microplastics, which can harm soil structure and fertility, and potentially contaminate water sources. Additionally, plastic residues left in the soil can disrupt the soil's physical properties, such as aeration and water infiltration, which are crucial for plant growth. Over time, this can lead to reduced crop yields and soil degradation. Therefore, the management and disposal of agricultural plastic waste are critical for maintaining soil health and sustainable agriculture.