How NPK 20-20-20 nutrient release can Save You Time, Stress, and Money.
Although N is expressed on an genuine elemental basis, P and K are expressed on an oxide basis (that's, they’re contained inside the phosphate and potash compounds).Next, the excess phosphorus ends up polluting rivers and lakes. So now many states have banned phosphorus in garden fertilizer. In Ontario, I seen 2-3 years back, a large number of mo