The best practices for using agricultural plastic mulch include selecting the right type of mulch for the specific crop and climate, ensuring proper installation to prevent weed growth and water evaporation, and maintaining the mulch to prolong its lifespan. It's also crucial to consider the environmental impact and plan for the mulch's disposal or recycling. Additionally, integrating crop rotation and soil health management practices can enhance the benefits of plastic mulch, such as improved soil temperature, reduced water usage, and increased crop yield. Regular monitoring for pest and disease issues is also recommended to prevent any negative impacts on the crop health.