Many cities send their sewage to be used as farm fertilizer. But waste treatment plants don't typically remove "forever chemicals," first.

The seaweed is harvested, dried, and crushed into a fine powder-like substance ... plant fertilizer numbers on the packaging, and apply at the recommended rate. Espoma Kelp Meal is an organic ...

Organic matter on top of the soil blocks the light from reaching weed seeds that are in and on the soil. Weed seeds need light to germinate. Organic matter is a coarse layer that traps water so that ...