UPuper® Rockwool Seedling Plug Sheet Using Guide. This video will tell you how to use UPuper® CP T36 grow plugs to plant tomatoes. This is a substrate for hydroponic seedlings in factory nurseries. The V-shape design of the starter plug discourages the tangling of roots, and easy to separate the plug. The shape and firmness of the rockwool plugs are of a quality that makes processing significantly easier, whether that processing is mechanical or manual. It can be used without a seedling tray or fits a standard 10 X 20 tray (flat). The substrate is produced automatically and uniformly with consistent performance, which can unify the ratio of water to fertilizer and water vapour, achieve precise control, and save cloning management costs.
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