Potassium Nitrate is a type of fertilizer that carries two important nutrients for plants and increases yield and quality. It contains approximately nitrogen (N) and 46% potassium (K2O), which is preferred for plants. All the nitrogen it contains is in the form of nitrate (NO3) and can be taken up by plants immediately. Since nitrate () is electrically charged, it also encourages the intake of some other nutrients. Potassium Nitrate is also the best blended fertilizer for mixing fertilizers and preparing liquid fertilizer.