112 results about "Sedge family" patented technology

A paddy field herbicide compounded with benzobicylon comprises the following materials by weight: 5 to 80 percent of effective components, 5 to 20 percent of additives and 5 to 80 percent of filling materials, wherein the first effective component is benzobicylon; the second effective component is any one of acetochlor, metolachlor, propisochlor, pretilachlor, butachlor, mefenacet, penoxsulam, fenpyroxim, quinclorac, bensulfuron, pyrazosulfuron, cinosulfuron, clomazone, fenoxaprop-P-ethyl, carfentrazone and isoproturon, wherein the weight ratio between the first effective component and the second effective component is (1:8) to (8:1). The paddy field herbicide has the technical effects that the use is economical and efficient; the safety is high; the control effect of weeds of the grass family, the broad-leafed family and the sedge family in the paddy field is improved; particularly, the control effect of weeds of the broad-leafed family is remarkably improved; the herbicide controlling spectrum is broadened; the safety degree for paddy rice is improved; the dosage as well as the control cost is reduced.

The invention relates to a herbicide composition for preventing and removing weeds in farmlands and an application, in particular to a herbicide used for preventing and removing gramineous weeds, broadleaf weeds and sedge weeds in paddy fields. The herbicide composition is a binary herbicide mixed agent taking penoxsulam and bensulfuron methyl as active components. The weight ratio of the penoxsulam to the bensulfuron methyl in the composition is 1.6:1-1:40, preferably 1.6:1-1:10. The compound herbicide can be prepared into water dispersed granules, a suspending agent, an oil suspending agentand wettable powder. The invention is used for preventing and removing the weeds in the paddy fields, has reasonable components and better preventing effect in comparison with the activity of the components when being applied independently, expands the preventing and removing spectra of the weeds, lowers the preventing and removing cost, delays the generation of the resistibility of the weeds, has good safety to crops and conforms to the safety requirement of pesticide preparations. The invention has the fresh-weight average preventing and treating effect of 87.35-98.01% to the gramineous weeds, the broadleaf weeds and the sedge weeds in the paddy fields after being applied for thirty days.