Tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent, and preparation method and application thereof

The invention provides a tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent, and a preparation method and the application of the tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent. The tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent is prepared from the following components in percent by mass: 1 to 40 percent of tribenuron, 1 to 40 percent of fenoxaprop-p-ethyl, 1 to 20 percent of humectant, 1 to 15 percent of dispersant, 0.1 to 10 percent of antifoaming agent, 0.1 to 15 percent of disintegrating agent, 0.1 to 10 percent of binding agent and the balance of carrier, wherein the disintegrating agent is prepared from one or multiple of sodium carboxymethylcellulose, urea, magnesium aluminum silicate, sodium sulfate, white carbon black, cross-linked starch and calcium chloride. The tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent disclosed by the invention has relatively good stability and disintegrative property under the matching of the components in corresponding contents; the tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent is higher in effective component content, higher in suspension rate, better in screening performance, better in dispersiveness and higher in control efficiency; an experimental result shows that only few particles appear in a part of the tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent after the tribenuron methyl and fenoxaprop-p-ethyl compound water-dispersion suspending agent is subjected to heat storage for 14 days; the suspension rate is up to 97.5 percent; the dispersiveness is up to 97.8 percent.