... Transfer,aaCeramics, Oxidizer, Petroche SpecificationsPotassium Nitrate is a fully soluble source of K and nitrogen, ... and shelf life.Potassium deficient plants will tend to grow slowly and develop poor root systems. ... They are also more prone to stress from extremes of temperature, pests and ... readily available potassium.Potassium Nitrate is safe to use on a wide range of fruit, flower and ...