Despite some commercial claims to the contrary, there is no evidence that one material is superior to another for crop production . The white phosphoric acid in our fertilizer makes it superior to the green acid you are currently using. The white acid is very pure but requires considerable energy and is more expensive to produce than the green. Higher analysis liquid fertilizers containing the primary nutrients are usually formulated with the white acid because some of the impurities in the green form such as aluminum, iron, and magnesium cause problems in their formulation, storage, and application. With dry fertilizers, these problems are circumvented and the impurities present no major physical problems.
Liquid fertilizer provides superior crop performance compared to dry fertilizer.
When compared to dry formulations, liquid fertilizers offer the advantage of easier handling, mixing, and application. From a nutrient availability and crop performance standpoint, numerous research trials have concluded no difference between the two forms when the same amounts of plant nutrients are applied. Handling preference and cost per nutrient unit should dictate buying decisions. Final thoughts Nutrient availability to crops is ultimately controlled by soil reactions. All verbal claims should be backed-up in writing.