How do farmers use agricultural plastic mulch to improve soil fertility?

Farmers use agricultural plastic mulch to improve soil fertility in several ways. It helps to retain moisture in the soil, reducing the need for irrigation and preventing water loss through evaporation. The mulch also suppresses weed growth, which competes with crops for nutrients. Additionally, it can increase soil temperature, which can lead to faster plant growth and earlier harvests. The plastic mulch can also reduce soil erosion and improve soil structure by protecting the soil surface from the impact of raindrops. Furthermore, it can help in the decomposition of organic matter, thereby enriching the soil with nutrients. Overall, the use of plastic mulch can lead to increased crop yields and improved soil health.