In mixing order, what comes after solution products?

• A. Surfactants or other adjuvants
• B. Emulsion products
• C. Compatibility agent
• D. Fill with carrier

Answer: (A)

In tank-mixing, the sequence is chosen to make sure everything dissolves and disperses evenly. After the products that readily dissolve in water (solution products), the next step is to add surfactants or other adjuvants. Surfactants reduce surface tension and improve wetting, spreading, and coverage on plant surfaces, helping the dissolved product stay evenly distributed in the spray. They’re added once the solution is formed so they mix smoothly with the already-dissolved components.

Emulsion products, compatibility agents, or simply filling to the final volume aren’t the immediate next step after solution products. Emulsions can require different handling and compatibility checks, compatibility agents are used to test tank-mix compatibility, and you typically finish by bringing the tank to its final volume after all additives are in, with thorough agitation.