When tank mixing dry, granular, wettable powders, emulsified concentrates, or suspension concentrates, formulations with insufficient agitation will cause them to settle out over time.
Using too much agitation could cause foaming issues. High foam could cause water-dispersible granules (WDG) and wettable powders to float on top of the foam. When this happens, the products will not hydrate correctly. The product will swell and eventually fall to the bottom of the tank, possibly causing system plugging. Over-agitation also affects emulsified concentrates, causing the surfactants to separate from the surface of solid active ingredients. This could destabilize the solution causing clumping or a substance that looks like cottage cheese. This leads to more downtime and wasted product.
Proper agitation will keep the product in suspension when liquid fertilizers are used as part of the carrier in a tank mix with granular products.
Not taking enough time to mix the spray solution properly can cause a range of problems, as described above. However, taking enough time is essential to create a good tank mix that delivers a good application and the desired results.