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If you also have a collection of trays from / for eggs, then it's time to think about how they can be usefully used in the household.
Details
Paper egg trays with compartments are convenient to use for sowing vegetable seedlings instead of cups.
Soil is poured into the recess and several seeds are planted. The tray is placed on the windowsill and covered with a lid or film. For example, for onions grown for greens, instead of a substrate, a little cotton wool or a folded paper napkin is placed in each compartment to retain moisture.
Before planting on the site, the tray is cut into parts. By the way, plants can be planted together with part of the tray. Cardboard in the ground breaks down and does not pollute nature, which is a direct sign of ecological and useful secondary use of ordinary things.
