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scott3387 t1_ixrd1ms wrote

You can but it's generally a waste of money at home and you need far less in a field setting.

In a home garden, you start as you mean to go on with a thick layer of cardboard and 3 inches of organic matter (compost, manure, leaf mold etc, whatever you have). That smothers most weeds but things like bindweed might need continously removed until it runs out of energy (might take a year). After that a simple regular, light hoeing does most of the job for any rogue seeds blown in. Weeding takes me maybe 10 minutes a year total per 8x4 bed.