Potassium Nitrate Mix With Mono Potassium Phosphate 

Potassium Nitrate KNO3 (200g) + Mono Potassium Phosphate KH2PO4 (50g) - 250g
4:1 ratio is used in making EI recipe ( Estimative Index )

In Potassium Nitrate Mix With Mono Potassium Phosphate -  nitrate is a critical macronutrient required for plant growth. Plants require phosphorus for a variety of processes such as - cell division, development of new tissues and root growth. Phosphorus deficiency is often associated with green spot algae growing on older leaves, as well as decreased growth rates.

Note: Potassium Nitrate cannot be posted as a separate salt.