In case you have trouble remembering whether or not P is for phosphorus or potassium, remember that the three nutrients are listed in alphabetical order. Phosphorus arrives before potassium alphabetically and so the last letter while in the list, K, is brief for potassium. Individually, I store mine in dark-colored https://nkp-vietnam70133.bloginwi.com/63385272/5-simple-statements-about-npk-15-15-15-vietnam-explained