THE 2-MINUTE RULE FOR NPK 20-20-20 FOR SEASONAL PLANTING

Is that this a good suggestion or its Wrong information? Is that this akin to applying fertiliser (eg topping fertiliser) over the surface area on the soil?Next, the excess phosphorus winds up polluting rivers and lakes. So now a lot of states have banned phosphorus in garden fertilizer. In Ontario, I discovered two-3 yrs ago, that a lot of manufac