Nursery bags are commonly manufactured using polyethylene (PE), including LDPE and HDPE-based materials, depending on the required strength, flexibility, thickness, and application. High-quality nursery bags are designed to withstand repeated handling, exposure to moisture, soil pressure, irrigation, and outdoor environmental conditions. The plastic material provides excellent flexibility, allowing the bag to expand as the growing medium and root system develop. Despite being lightweight, properly manufactured nursery bags can provide good resistance to tearing and puncturing. This is important because bags are frequently moved between nursery beds, greenhouses, transport vehicles, and planting locations. For outdoor nurseries, UV stabilization is particularly important. UV-stabilized nursery bags are better able to withstand prolonged exposure to sunlight without becoming brittle or losing their mechanical strength. Drainage holes are generally incorporated into the base or sides of the bags to allow excess water to escape and improve root-zone aeration.
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