Rumored Buzz on npk 15 15 15 vietnam việt nhật giá bao nhiều
One among the preferred soil fertilizer ratios in use is really a fifteen-fifteen-15. The figures refer to the ratio of nitrogen, phosphorus, and potassium in parts for every million. Generally speaking, Which means that you will find fifteen units of nitrogen for every one particular unit Every single of phosphorus and potassium contained inside i