THE 2-MINUTE RULE FOR NPK 20-20-20 FOR NUTRIENT DELIVERY

Is this a good idea or its Fake assistance? Is that this akin to applying fertiliser (eg topping fertiliser) within the floor with the soil?Secondly, the excess phosphorus ends up polluting rivers and lakes. So now lots of states have banned phosphorus in garden fertilizer. In Ontario, I found 2-3 yrs in the past, that many brands have now removed