Suspending agent containing pyroxasulfone and flumioxazin and preparation method thereof

The invention provides a suspending agent containing pyroxasulfone and flumioxazin. The suspending agent is prepared from active ingredients, a dispersing agent, a wetting agent, a thickening agent and a defoaming agent, the active ingredients comprise pyroxasulfone and flumioxazin. The pyroxasulfone and flumioxazin suspending agent provided by the invention is relatively high in content which can exceed 40%, and is beneficial to reducing the dosage and the pesticide application frequency, so that the cost is reduced. By optimizing the auxiliaries, the stability of the product is improved, the product can tolerate the high and low temperature interval of-15 DEG C to 65 DEG C, the influence of environmental change in the transportation process is effectively solved, and the product quality problems of caking, creaming, large particle size, bleeding and the like are avoided. And meanwhile, the water treatment agent can tolerate different water qualities such as C water, D water and 3WHO water, can be used in di