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72 cell Plug Trays Seed Starting trays Seed Germination Propagation Flats Plant Propagation 5 pack Trays|Nursery Pots| - AliExpress
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Greenhouse & Floriculture: Starting Seeds in Greenhouses | Center for Agriculture, Food, and the Environment at UMass Amherst
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SureRoots 50 Deep-Cell Plug Trays / Plug Flats. Approximately 2" square (at the top) x 5" high. | Plugs, Planting flowers, Container plants
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