Study on the Formulation of Water Dispersible Granule withTriangle-coordinate Figure

A practical and rapid method for screening the formulation of WG(water dispersible granule)was introduced. In the method, the triangle coordinate based on the content of the three variables was built,and the important and simple metewands as the guide line was selected. The method was applicable for research of seeking the optimum proportions of binary or ternary mixtures of pesticide adjuvant, and could save the experimental time and increase the efficiency.The formulation of 43% tebuconazole WG as a case studied, using the triangle-coordinate figure method, the optimum wetting agent, dispersant and their dosage were determined soon. The results were consisted with what anticipated.