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 new medicine application of Scirpus yagara which belongs to sedge family Scirpus, in particular to an application to preparing medicines which treat viral disease especially AIDS. The active site of the Scirpus yagara extract contains index components Scirpusin A and Scirpusin B and the content is no less than 5 percent. Experiments prove that the active site of the Scirpus yagara has obvious inhibited effect on virus, especially HIV virus and the effective concentration is 0.82 ug /ml, which is 10 times of that of monomeric compound scirpusin A or B. The active site can be applied solely or with other things, or combined with an excipient properly to be produced into peroral or parenteral liquid to be applied to preventing and treating viral disease especially the AIDS.

The invention provides a complex herbicidal composition. The complex herbicidal composition comprises a first active component, namely penoxsulam, a second active component, namely bentazone, and a third active component, namely MCPA (2-methyl-4-chlorophenoxyacetic acid) sodium or a derivative thereof, and the mixture ratio range by weight of the three active components is (0.1-40): (1-100): (1-100). According to the complex herbicidal composition provided by the invention, the penoxsulam, the bentazone and the MCPA-sodium or the derivative thereof are used for ternary compounding, so that the new composition obtains gain effects in the control of broadleaf weeds and sedge weeds in a paddy field and better effects on controlling the gramineous and broadleaf weeds and the sedge weeds are particularly during the tillering stage of paddy rice. In addition, the using quantity of the bentazone and the MCPA-sodium or the derivative thereof during the tillering stage of the paddy rice can be reduced, and the safety of grains can be improved.

The invention belongs to the technical field of agricultural agents, and particularly relates to a mixed weeding composite containing bispyribac and aniloguard. The weeding composite takes the bispyribac and the aniloguard as main active ingredients, and the mass ratio of the bispyribac and the aniloguard is 1-99/1-99. Different surface active agents, thickening agents, solvents or solid fillers and the like are added to the weeding composite so as to be produced into missible oils, suspending agents, water dispersible granules, wettable powder and various dosage forms. The weeding composite can prevent and weed weeds of grass families, broad leaves and sedge families in paddy field, compared with a single herbicide, under the premise of improving the efficacy, the mixed weeding composite has the prolonged weed resistance, wide weeding scope and long duration, and is safe to paddy and succeeding crops.

The invention discloses a weeding composition containing halosulfuron-methyl and oxaziclomefone. The weeding composition containing halosulfuron-methyl and oxaziclomefone is composed of an active component, an additive and a carrier, wherein the active component is composed of halosulfuron-methyl and oxaziclomefone in weight ratio of 0.02-50, and the active component accounts for 1-90% of the total weight of the weeding composition. The weeding composition containing halosulfuron-methyl and oxaziclomefone can be the conventional pesticide dosage forms of wettable powder, water dispersible granules, oil suspension, powder, granules, dry suspending agent, emulsion oil, emulsion in water, microemulsion in water, or suspended emulsion and the like. The weeding composition has a synergistic effect and a broad herbicide controlling spectrum, can prevent and kill various weeds in a grass family and a sedge family and broad leaf weeds, including multiple pernicious weeds such as barnyard grass and difformed galingale herb, can be used before and after seedlings grow and is low in dosage and high in safety to crops.

The invention discloses a cyhalofop-butyl ester effervescent tablets and a preparation method thereof. The cyhalofop-butyl ester effervescent tablets comprises the following components in percentage by mass: 1-40 percent of cyhalofop-butyl raw drug, 5-30 percent of solid acid, 5-30 percent of carbonate, 1-15 percent of wetting dispersant agent, 0-15 percent of flowing adjuster, 3-15 percent of binding agent and the balance of fillers for compensating to 100 percent. The preparation method comprises the following steps of: sufficiently and uniformly mixing all the materials according to proportions, crushing the mixed material to 0.3-5mu m with a low-temperature ultra-micro crusher, adding water and mixing to form a paste binding agent, tableting with a tableting machine, drying, granulating, detecting, and carrying out sealed package to obtain the finished tablets. The cyhalofop-butyl ester effervescent tablets are convenient to use and can be used for effectively preventing multiple weeds in grass family, sedge family, broad leaf family and the like of rice.

The invention belongs to the technical field of agricultural agents, and discloses a mixed herbicide containing cinosulfuron, butachlor and cinmethylin and application thereof, wherein the herbicide takes the cinosulfuron, the butachlor and the cinmethylin as main active ingredients, and the mass ratio of the cinosulfuron, the butachlor and the cinmethylin is 0.1-80/0.1-80/0.1-80. The mixed herbicide is applied to weeding paddy field, and particularly has the obvious effect on the application in preventing and weeding weeds of various grass families, sedge families or broad leaves in the paddy field. Compared with a single herbicide, under the premise of improving the efficacy, the mixed herbicide also has the advantages of weakened herbicide resistance, wide weeding scope and long efficacy duration, and is safe to paddy and succeeding crops.

The invention belongs to the technical field of agricultural chemicals and discloses a mixed herbicide containing cinosulfuron and propanil and an application thereof. The herbicide takes the cinosulfuron and the propanil as main active ingredients, the mass ratio of the cinosulfuron to the propanil is (0.1-80):(0.1-80), and the content in percentage by weight of the cinosulfuron and the propanil in the mixed herbicide is 1-85%. The mixed herbicide disclosed by the invention has significant effects in applications in post-emergence weeding of rice paddy fields, in particular to the applications in control of various grass family, sedge family and broadleaf weeds in the rice paddy fields. Compared with a single agent, the herbicide disclosed by the invention can delay weed resistance and realize the advantages of broad weed control spectrum, long lasting period and safety against rice and afterreap crops on the premise of improving efficacy.

The invention relates to the technical field of pesticide, and discloses a paddy-field complex weeding agent composition and an application thereof. The paddy-field complex weeding agent composition is prepared from an effective constituent A, an effective constituent B and an effective constituent C, the effective constituent A is 1%-20% of metamifop, the effective constituent B is 1%-40% of clomazone, and the effective constituent C is 1%-60% of bentazone. The weeding composition is compared with a single dosage with the same effective constituents, the synergism effect is obvious, and a grass killing spectrum is effectively enlarged; meanwhile, the using quantity of all the effective constituents is reduced, the safety of crops is improved, and occurrence and development of weed pesticide resistance when a single pesticide preparation is used is delayed. The weeding composition is suitable for preventing and removing most grass family weeds, broadleaf weeds and sedge family weeds in a paddy field. Particularly, the weeding composition has the quite good controlling effect on volunteer seedlings, resistance green tares and the like with serious harm in dry direct seeding rice fields in partial areas, the lasting period is long, and the weeding composition is safe for rice.

The invention discloses a herbicidal composition containing metamifop and oxaziclomefone, and application of the herbicidal composition. The herbicidal composition is prepared by using the metamifop and the oxaziclomefone as main effective components, wherein the mass ratio of the metamifop to the oxaziclomefone is equal to (1 to 50)-(59 to 1). The herbicidal composition provided by the inventioncan be used for weeding in rice fields, and has a remarkable effect especially for preventing and killing gramineae weeds, broadleaf weeds and sedge weeds. Compared with a single agent, the herbicidalcomposition provided by the invention delays the weed resistance, and is wide in weed control spectrum and long in lasting period under the premise of improving the efficacy; furthermore, the herbicidal composition is safe to rice and afterreap crops.

The invention relates to an oil-used peony field weeding method. The method mainly comprises herbicide selection, a spraying method, and weeding time. The herbicide is a mixture of carfentrazone-ethyl, haloxyfop-R-methyl, prometryn, an assistant, and a packing. Weight percentage of each raw material is 1-5% of carfentrazone-ethyl, 3-15% of haloxyfop-R-methyl, 2-30% of prometryn, 2-10% of assistant, 40-92% of packing. The spraying method of the herbicide is using a sprayer added with a sprayer cover to spray in a targeted manner. First weeding time is selected in spring, when air temperature is low and wind is small, and later, the herbicide is sprayed in time according to weed conditions. The weeding method can effectively remove broad-leaf family, grass family, and sedge family common weeds in an oil-used peony field. The method is high in control effect, and fast in response. The sprayer added with a sprayer cover is used to spray, thereby effectively preventing damages on growth of the oil-used peony.

The invention discloses a ternary weeding composition for a paddy rice field. The ternary weeding composition is prepared from three effective components including mesotrione, pretilachlor and hingosulfuron-methyl; the mass ratio of the effective components is (1 to 5) to (10 to 50) to (1 to 5); the sum of the mass percent of the three effective components in the composition is 1 to 80 percent. The weeding composition disclosed by the invention is applicable to almost grass family weeds, broad leaf weeds and sedge family weeds and especially has a remarkable prevention effect on Yinglin (scirpus tabernaemontani), barnyard grass and sagittaria trifolia. The ternary weeding composition has the advantages of low utilization dosage, wide weeding spectrum, long lasting period and the like, canbe used for effectively delaying the drug resistance of the weeds, has an ideal weeding effect and is safe to paddy rice.

The invention belongs to the technical field of pesticides, and provides a mixed herbicide prepared from benzene carfentrazone-ethyl and thifensulfuron methyl and application of the mixed herbicide. The benzene carfentrazone-ethyl and the thifensulfuron methyl are taken as main effective components of the mixed herbicide; wherein the mass ratio of the benzene carfentrazone-ethyl to the thifensulfuron methyl is (1:900)-(900:1). The application of the mixed herbicide in weeding of a corn field, especially the application in prevention and weeding of various grass families, the sedge family and wide leaf weeds already unearthed or about to be unearthed, has a remarkable effect. Relative to a mono-agent, the herbicide delays the resistance of weeds, and is wide in weeding spectrum, long in lasting period and safe to corns under the premise of improving the pesticide effect.

The invention relates to a herbicide, and discloses a mixed herbicide containing cinosulfuron, quinclorac and bensulfuron methyl and application thereof, belonging to the technical field of pesticide. The herbicide takes the cinosulfuron, the quinclorac and the bensulfuron methyl as main effective ingredients; and a mass ratio of the cinosulfuron, the quinclorac and the bensulfuron methyl is 0.1-8.0:0.1-80:0.1-80. The mixed herbicide provided by the invention has obvious effects in application of weeding for paddy fields, in particular the application of preventing and eliminating various gramineae weeds, sedge weeds and broadleaf weeds in the paddy fields. Compared with a single agent, under the premise of improving the drug effect, the herbicide provided by the invention delays resistibility of the weeds, has a wide weeding spectrum and a long lasting period, and is safe to rice and succeeding crops.

The invention discloses a herbicidal composition containing fenpyrafen and ethisulfuron-methyl and an application thereof. The mass ratio of fenpyrax to fenpyramid is 1:60-60:1. The herbicidal composition of the present invention can be used for weeding in paddy fields, especially for controlling gramineous, sedge and broad-leaved weeds in paddy fields and has remarkable effects. Compared with a single dose, the herbicidal composition of the present invention delays weed resistance, has a wide herbicidal spectrum, long duration of action and is safe to rice and subsequent crops under the premise of improving the efficacy of a single agent.

The invention provides a weeding composition for a paddy field. The weeding composition comprises an ingredient A and an ingredient B, wherein the ingredient A is iodosulfuron-methyl sodium, the ingredient B is propisochlor, and the weeding composition is formed through compounding the ingredient A and the ingredient B. According to the weeding composition for the paddy field, due to the adoption of the scheme, the composition of the ingredient A and the ingredient B has a synergistic role and has a good prevention and elimination effect on the weeds of the grass family, broad-leaved class and sedge family in the paddy field; and the residual life is short, and then, the growth of next crops is not affected, so that the composition is environment-friendly.

The invention provides a method for improving the production function of alpine grassland of the Tibet Plateau by sprinkling dicyandiamide. In the initial period of the growing season, 3.4 kg ha-1 ofa concentration nitrification inhibitor DCD is applied, so that the productivity of the alpine grassland is increased by 27.2%, and the fine grass family and sedge family pasture proportion is increased; the N2O emission rate of the alpine grassland ecosystem is reduced by 36.4%, and the significance test level (P<0.05) is reached. Through a mode of applying the nitrification inhibitor DCD in theinitial period of the growing season, the content of ammonium nitrogen in soil is increased, the content of nitrate nitrogen in the soil is reduced, nitrogen element loss is reduced, the nitrogen element utilization efficiency is improved, and the win-win purpose of improving the production function of alpine meadow and reducing N2O as an atmospheric greenhouse gas is achieved.

The invention discloses a weeding composition and application thereof. The weeding composition comprises an active component A and an active component B, wherein the active component A is fine glufosinate ammonium; the active component B comprises one or more of diphenyl ether weedicides; the weight ratio of the active component A to the active component B is (1-20) to (80-1); the weeding composition can be used for controlling grass family weeds, broadleaf weeds and sedge family weeds. According to the weeding composition, multiple active components are compounded; the weeding composition israpid in pesticide effect and is capable of expanding weed control spectrum and improving the environment compatibility.

The invention discloses a penoxsulam-oxadiargyl oil suspension agent. The oil suspension agent comprises the following components in percentage by mass: 0.1%-30% of penoxsulam, 1%-30% of oxadiargyl, 1%-20% of a dispersing agent, 0.1%-2% of a structural agent, 1%-5% of an antifreezing agent, 0.1%-1.0% of a defoaming agent, 0.1%-1% of a preservative and the balance of oil base. A weeding composition of the penoxsulam-oxadiargyl oil suspension agent can be used for effectively preventing and removing paddy field grass family, sedge family, broadleaf weeds; the using effect is obviously superior to that of independently used single herbicides; the herbicide controlling spectrum is expanded; the consumption of the herbicides is reduced; the penoxsulam-oxadiargyl oil suspension agent is low in toxicity, high in efficiency and safe to people and livestock, and is environmentally-friendly.

The invention belongs to the technical field of agricultural chemicals and discloses a mixed herbicide containing cinosulfuron and bispyribac-sodium and an application thereof. The mixed herbicide takes the cinosulfuron and the bispyribac-sodium as main active ingredients, the mass ratio of the cinosulfuron to the bispyribac-sodium is (0.1-80):(0.1-80), and the content in percentage by weight of the cinosulfuron and the bispyribac-sodium in the herbicide is 1-85%. The mixed herbicide disclosed by the invention has significant effects in applications in post-emergence weeding of rice paddy fields, in particular to the applications in control of various grass family, sedge family and broadleaf weeds in the rice paddy fields. Compared with a single agent, the herbicide disclosed by the invention can delay weed resistance and realize the advantages of broad weed control spectrum, long lasting period and safety against rice and afterreap crops on the premise of improving efficacy.

The invention relates to a compound herbicide containing bentazone, methyl-4-chlorophenoxyacetic acid and triclopyr or fluroxypyr. The compound herbicide is characterized by comprising main effectiveingredients A, B and C, wherein A is bentazone, B is methyl-4-chlorophenoxyacetic acid and C is triclopyr or fluroxypyr; the weight ratio of A, B and C is (1-100):(1-100):(1-100), preferably, (1-60):(1-50):(1-20) and more preferably, (1-50):(1-20):(1-20). The compound herbicide is used for controlling sedge weed and broadleaf weed for treatment of post-emergence stems and leaves in paddy fields, sugarcane fields, uncultivated areas and the like.

The invention relates to a mixed herbicide composition containing bispyribac-sodium and flucetosulfuron, belonging to the field of pesticide. The herbicide composition takes the bispyribac-sodium and the flucetosulfuron as main effective ingredients; and a mass ratio of the ispyribac-sodium and the flucetosulfuron is 1-99:1-99. Different surfactants, thickening agents, solvents or solid filler and the like can be added to, the herbicide composition so as to be processed into a plurality of dosage forms such as missible oil, suspending agent, water dispersible granule, wettable powder and the like. The herbicide composition can prevent and eliminate gramineae weeds, sedge weeds and broadleaf weeds in paddy fields; compared with a single agent, under the premise of improving the drug effect, the herbicide composition delays resistibility of the weeds, has a wide weeding spectrum and a long lasting period, is safe to rice and succeeding crops, and is an ideal herbicide for the paddy fields.