625results about How to "Improve weed control effect" patented technology

The present invention provides a pyrimidine derivative represented by the formula: wherein R<1p >and R<1q >are the same or different, and each represents (1) hydrogen, (2) halogen, (3) a C1-6alkyl group which may be substituted or (4) a C1-6alkoxy group, and so on, R<2 >is halogen, a C1-6alkyl group, cyano group, and so on, Ar is a phenyl group which may be substituted or is a condensed hetero ring which may be substituted, which has excellent selective herbicidal activity, and a herbicide containing the derivative.

A herbicidal composition is provided comprising an aqueous solution of N-phosphonomethylglycine, predominantly in the form of the potassium salt thereof, at a concentration of at least 300 g a.e. / l of the composition; and a surfactant component in solution or stable suspension, emulsion, or dispersion in the water, comprising one or more surfactants in a total amount of about 20 to about 300 g / l of the composition, wherein the composition has a viscosity of less than about 250 centipoise at 0° C. or a Gardner color value less than 10.

A herbicidal composition is provided comprising an aqueous solution of N-phosphonomethylglycine, predominantly in the form of the potassium salt thereof, at a concentration of at least 300 g a.e. / l of the composition; and a surfactant component in solution or stable suspension, emulsion, or dispersion in the water, comprising one or more surfactants in a total amount of about 20 to about 300 g / l of the composition, wherein the composition has a viscosity of less than about 250 centipoise at 0° C. or a Gardner color value less than 10.

The invention relates to a cyhalofop-butyl-containing weeding composition, which is mainly characterized by comprising 1 to 60 percent of active ingredient A, namely cyhalofop-butyl, 1 to 60 percent of active ingredient B, auxiliary agents and other excipients, wherein the active ingredient B is anilofos, oxaziclomefone or clomazone. The composition can be prepared into wettable powder, water dispersible granules, a suspending agent, suspension emulsion, microemulsion and aqueous emulsion. The weeding composition is used for preventing and controlling annual gramineous weeds in a paddy field.

The invention relates to a herbicide composition for preventing and eradicating weeds in farmlands and applications thereof, and particularly relates to a herbicide which is used for preventing and eradicating gramineae weeds, broadleaf weeds and cyperaceae weeds in rice fields. The herbicide composition is a binary herbicide mixture employing penoxsulam and halosulfuron-methyl as active ingredients, wherein the weight ratio of penoxsulam to halosulfuron-methyl is 1:30-15:1. The herbicide composition can be made into any preparation allowable in agriculture. The herbicide composition is used for preventing and eradicating weeds in the rice fields, has reasonable components, with the prevention effect being superior to the activity of each component applied separately, enlarges weed preventing and eradicating spectrum, reduces preventing and eradicating cost, slows down the generation of weed resistance, has good security for crops, and fits to the security requirement of pesticide preparations.

The invention relates to a herbicide composition used for controlling farmland weeds, and a purpose thereof, and specifically relates to a herbicide used for controlling corn field grass weeds and broadleaf weeds. The invention provides a binary herbicide composition with topramezone and atrazine as active components. In the composition, the weight ratio of topramezone to atrazine is 1:180-1:1. The composition can be prepared into any agriculturally acceptable preparations. When the composition is used in corn field weed controlling, a substantial synergetic effect compared with single applications of the components is provided. With the composition, herbicidal spectrum can be widened, controlling cost can be reduced, appearance of weed resistance can be retarded, and good safety upon crops is provided.

The invention relates to a weeding composition containing florasulam and triazines. The weeding composition containing florasulam and triazines is characterized by containing 1 to 60 percent of active ingredient A florasulam, 1 to 60 percent of active ingredient B, aids and other excipients, wherein the active ingredient B is one of triazines weedicides such as metribuzin, terbutryn and atrazine; and the weeding composition can be prepared into wettable powder, water dispersible granules, a suspending agent, microemulsion and water emulsion. The weeding composition is used for preventing and controlling annual weed in the wheatland.