GreenEase Drop Seeder for Proptek TraysDrop Seeder for Proptek Trays Proptek vegetable propagation seed and plug trays are designed to produce consistent, high quality plants by encouraging the development of strong, natural root structures. Thanks to their injection molded construction, Proptek trays often feature more cells, allowing growers to produce more plants in the same amount of space compared to traditional Styrofoam or thermoformed trays. They are available in a range of sizes