80 results about "Leptochloa chinensis" patented technology

The invention relates to a herbicidal combination containing flumetsulam. The herbicidal combination is characterized in that: the active ingredients of the herbicidal combination are component A and component B; the component A is the flumetsulam; and the component B is chosen from one or more of the following compounds: acetochlor, butachlor, alachlor, propisochlor, metolachlor, s-metolachlor, propachlor, ethachlor, napropamide, diphenamide, ethaprochlor, dimethenamid, high-effective dimethenamid, flufenacet, metazachlor, allidochlor, pethoxamid, prynachlor and propyzamide. The herbicidal combination can effectively decrease the dosage of the active ingredients per mu, broaden the weed control spectrum of each single agent and effectively control annual or perennial gramineous, broadleaf and cyperaceous weeds in the fields of peanut, soybean, rape, cotton, wheat, potato and other crops, such as green bristlegrass, crabgrass, barnyard grass, Asian sprangletop, speedwell, cocklebur, night shade, redroot amaranth, goosefoot, Indian mallow, cleavers and datura.

The invention relates to the field of pesticide preparations and discloses a weeding composition, which is made of flucetosulfuron and metamifop in a weight ratio of 1:3-6. The weeding composition can be made into emulsifiable solution, wettable powder, water dispersible granules and the like with conventional auxiliaries and carriers/solvents by the existing methods. The weeding composition can be used for removing most of paddy field weeds, effect of controlling gramineous weeds such as barnyard grass and Leptochloa chinensis, and cyperaceae weeds such as Monochoria vaginalis and Cyperus difformis can be improved, consumption of effective ingredients is lowered, service cost is low, and the weeding composition has the advantages of long application period, long lasting period, safety to succeeding crop and the like.

The invention provides a weeding composition. Active components of the weeding composition consist of a component A and a component B, wherein the component A is halosulfuron-methyl and the component B is other herbicide; the weight ratio of the component A to the component B is 1:1 to 1:100. The invention also relates to the application of the weeding composition to prevention and control of the growth of undesired plants such as broadleaf weed, sedge weed or grassy weed, in particular to the application of the weeding composition to prevention and control of the growth of undesired plants such as echinolchloacrus-galli, leptochloa chinensis, yellow nut sedge, cyperus difformis L, Solanum nigrum L, abutilon, acalypha australis, Scirpus juncoides Roxb and Alisma L in cereal crops. The invention also provides a method for preventing and controlling the growth of the undesired plants. The method comprises the following steps: contacting the undesired plants or growth places thereof with the weeding composition with weeding effective quantity, or applying the weeding composition with weeding effective quantity to soil or water to prevent germination or growth of the undesired plant.

The invention provides an oil suspension type herbicide containing cyhalofop-butyl and penoxsulam, relating to the technical field of production of pesticides. The oil suspension type herbicide is composed of effective components including the cyhalofop-butyl and the penoxsulam, wherein the cyhalofop-butyl accounts for 8% of the total mass of the herbicide; the penoxsulam accounts for 2% of the total mass of the herbicide; and the oil suspension type herbicide also contains 8% of a dispersion wetting agent, 1% of an anti-freezing agent, 1% of a thickening agent, 2% of a de-foaming agent and 78% of a filler. The oil suspension type herbicide contains the effective components including the cyhalofop-butyl and the penoxsulam, and can be applied to prevention and removal of various weeds including direct seeding paddy field barnyard grass, leptochloa chinensis, nutgrass flatsedge, convexutricle sedge herb, wild water chestnuts, short sagittaria sagittifolia, alternanthera philoxeroides and paspalum distichum at the periphery of four ridges are good; the oil suspension type herbicide is safe to crops and has low cost and good prevention effect; and the herbicide composition has a stable chemical performance, is efficient and broad-spectrum, and has obvious broad-spectrum weeding and supplementary effect on prevention and removal objects.

The invention relates to a weeding combination containing anilofos and quinclorac or quinclorac salts and a preparation thereof. Particularly, the weeding combination is used for controlling and eliminating vicious weeds such as paddy field barnyard grass, moleplant seeds, paspalum distichum and crabgrass and has good control effects on the barnyard grass with the leaf age of over 5.5, the paspalum distichum, the moleplant seeds and the crabgrass and other annual weeds. The combination comprises, by weight, 1-70% of anilofos and 1-99% of one or more than one of quinclorac and the quinclorac salts. The weeding combination has the good control effects on the barnyard grass with the leaf age of over 5.5, the paspalum distichum, the moleplant seeds and the crabgrass and other annual weeds, the equipment investment is little, a process is easy to control, product quality is stable, the weeding combination can be produced continuously and is suitable for industrial production, and the yield is higher than 99%.

The invention relates to a preparation method of a phorbol ester compound Euphorbia Factor L2. A two-dimensional liquid chromatographic technology is adopted to extract Euphorbia Factor L2 from leptochloa chinensis, through reasonable selection of a chromatographic column, a dissolved solution, a mobile phase and the like, optimization of technical conditions such as the flow velocity, the elution mode, the collection section and the like and the orthogonality of the first dimension and the second dimension, complementary separation is realized, so that the whole separation and purification method is practicable, the operability is high, and the purity of the obtained Euphorbia Factor L2 is higher than 98% at most.

Traditional Chinese medicine for treating polyneuropathy comprises, by weight, 9-14 parts of oryzanol, 6-11 parts of clematis chinensis, 5-10 parts of white peony roots, 6-12 parts of ligusticum wallichii, 4-11 parts of scorpions, 5-10 parts of earthworms, 6-9 parts of asarum, 5-8 parts of claoxylon polot merr, 5-11 parts of sodaapple nightshade herbs, 6-12 parts of notopteryiginm forbesii boiss, 5-10 parts of radix glycyrrhizae, 5-10 parts of borneol, 6-11 parts of melodinus suaveolens, 5-12 parts of cynomorium, 5-10 parts of boxthorn roots, 6-11 parts of eucommia ulmoides, 5-10 parts of cortex magnoliae officinalis, 4-8 parts of moleplant seeds and 5-9 parts of solidago. The traditional Chinese medicine has a good effect on treating inflammatory demyelinating polyneuropathy.

The invention discloses a bipolaris yamadae (Y.Nisik.) shoemaker and a screening and identification method and application thereof. The bipolaris yamadae (Y.Nisik.) shoemaker (HXDC-1-2) has been deposited in the China General Microbiological Culture Collection Center with the accession number CGMCC No.17778. The bipolaris yamadae (Y.Nisik.) shoemaker is applied to biological weeding when the conidia concentration is 102 conidia/ml or more, can be safely applied to crop fields of rice, corn, soybeans, peanuts, sesame, millet, broad beans, peas, rape, vegetables, flowers, traditional Chinese medicinal materials and fruit trees, and is used for controlling gramineous weeds, such as barnyard grass, semen euphorbiae, herba digitariae, herba setariae viridis, eleusine indica, leptochloa panicea,wild oat, Aleppo grass and microstegium vimineum, annular nutgrass flatsedge and part of broad-leaf weeds; and the control effect can reach 80% or more. The bipolaris yamadae (Y.Nisik.) shoemaker, serving as a biological herbicide, has the advantages of being good in weeding effect, low in usage amount, high in safety to crops, low in cost, environment-friendly, free of a residue and free of pollution.

The invention provides a weeding composition. Active components of the weeding composition consist of halosulfuron-methyl and oxadiazon; the weight ratio of the halosulfuron-methyl to the oxadiazon is 1:1 to 1:100. The invention also relates to the application of the weeding composition to prevention and control of the growth of undesired plants such as broadleaf weed, sedge weed or grassy weed, in particular to the application of the weeding composition to prevention and control of the growth of undesired plants such as echinolchloacrus-galli (ECHCG), leptochloa chinensis (LEFCH) and cyperus difformis L in cereal crops. The invention also provides a method for preventing and controlling the growth of the undesired plants. The method comprises the following steps: contacting the undesired plants or growth places thereof with the weeding composition with weeding effective quantity, or applying the weeding composition with weeding effective quantity to soil or water to prevent germination or growth of the undesired plant. The composition provided by the invention can remarkably improve the weeding effect and effectively control weed, avoids toxicity on crops, and improves the compatibility with the crops.

The invention discloses an efficient rice fertilizer and a preparation process thereof, and belongs to the field of agricultural fertilizers. The efficient rice fertilizer is prepared from the following components: urea, potassium chloride, a selenium-enriched agent, an accelerant, animal waste, humic acid, leptochloa chinensis, selenium yeast, theasaponin, compound enzyme, an EM microbial agent and an amino acid chelate. The fertilizer preparation process comprises the following steps: putting urea, potassium chloride, an accelerant, animal waste, tea saponin and an amino acid chelate into astirrer, and stirring and mixing to obtain a mixture A; putting humic acid, euphorbia thymifolia, selenium yeast, compound enzyme and an EM microbial agent into a pulverizer, stirring, pulverizing, sieving, and standing to obtain a mixture B; and putting the mixture A and the mixture B into a fermentation tank, performing stirring and mixing, performing fermentation for 24-72h, adding a selenium-enriched agent, and performing uniform stirring so as to obtain the fertilizer. The fertilizer provided by the invention provides a large amount of selenium element for rice, can well promote the absorption of the rice to the selenium element, and improves the growth efficiency of the rice.

The invention provides a missible oil type herbicide containing cyhalofop-butyl and penoxsulam, relates to the technical field of agricultural production, and particularly relates to a production method of a compound pesticide. The missible oil type herbicide containing the cyhalofop-butyl and the penoxsulam provided by the invention can be widely applied to prevention and removal of various weeds of rice direct seeding fields, and particularly has efficient and broad-spectrum weeding performances on various weeds including direct seeding paddy field barnyard grass, leptochloa chinensis, nutgrass flatsedge, convexutricle sedge herb, wild water chestnuts, short sagittaria sagittifolia, alternanthera philoxeroides and paspalum distichum at the periphery of four ridges; and the missible oil type herbicide has no bad influences on crops and the herbicide composite is different from existing other pesticide herbicides.

The invention relates to a herbicidal combination for paddy fields. The active ingredients of the herbicidal combination are imazosulfuron and mefenacet, the weight ratio of which is 10:1 to 0.5:100; and adjuvant, solvent and carrier can be added into the active ingredients to prepare any agriculturally applicable dosage form. The mixed combination is highly safe for paddy rice, can effectively decrease the dosage of the active ingredients per mu, broaden the weed control spectrum of each single agent and effectively control barnyard grass, Asian sprangletop and annual and perennial broadleaf weeds, such as hairgrass, oldworld arrowhead, water plantain, pondweed, cress, common bulrush, glomerate galingale herb, marsh horsetail herb, difformed galingale, flat sedge, fice flat sedge and perennial sedge, and in particular, the herbicidal combination has special effect on oldworld arrowhead which is worst weed.

The invention discloses a traditional Chinese medicine essential oil for relieving fatigue. The traditional Chinese medicine essential oil is prepared from the following bulk drug substances in parts by mass: 9-16 parts of rhizoma gastrodiae, 5-10 parts of eriobotrya seguinii, 10-20 parts of pogostemon cablin, 8-16 parts of fructus psoraleae, 4-9 parts of raspberry, 9-16 parts of asarum sieboldii, 8-12 parts of dried ginger, 6-10 parts of leptochloa chinensis, 8-12 parts of parasitic loranthus, 9-16 parts of gardenia jasminoides, and an appropriate amount of each of melissa essential oil, spearmint essential oil, rosemary essential oil and sweet almond oil. According to the traditional Chinese medicine essential oil for relieving fatigue and the preparation method of the traditional Chinese medicine essential oil, the Chinese medicinal herbs and the natural extracting essential oils are adopted as the raw materials, so that toxic and stimulating substances are not contained, side effects on human bodies after long-term use are not caused, people are not addicted, and high safety and efficacy are achieved; besides, the contained essential oils do not generate other dangerous chemical substances after being mixed, therefore a fresh and cool fragrance is achieved, qi and blood flow freely and fatigue nerves of human bodies are fully activated through circulation of channels and collaterals.

Provided is an herbicide composition containing penoxsulam, 2-methyl-4-chlorophenoxy acetic acid and pyrazosulfuron-ethyl. The mass ratio of the effective components, namely the penoxsulam to the 2-methyl-4-chlorophenoxy acetic acid to the pyrazosulfuron-ethyl in the herbicide composition is (1-50):(0.1-20):(0.1-20), the total mass of the effective components in the preparation accounts for 1%-60% of the overall preparation mass, and the balance is auxiliary components allowable and acceptable in pesticides. The dosage forms of the herbicide composition are missible oil, a suspending agent, wettable powder, water dispersible granules, emulsion in water, a microemulsion, granules, microcapsules and water aqua. Main weeds in paddy fields, such as barnyard grass, leptochloa chinensis, angiospermae, eleusine indica and winter wheat weeds including alopecurus aequalis, wild oats, polypogon fugax, bluegrass, sclerochloa dura, puccinellia distans, lolium multiflorum, bearded darnel, bromegrass, phleum paniculatum, aegilops tauschii, beckmannia syzigachne, wheatgrass, shepherd's purse, descurainia sophia, chickweed and the like, can be effectively controlled.

The invention discloses a paddy field weeding composition containing triafamone. The effective component of the weeding composition is prepared from a component A and a component B, the component A isthe triafamone, and the component B is benthiocarb or molinate; the mass ratio of the component A to the component B is (1 to 40) to (10 to 90). The weeding composition has a synergistic effect, is mainly used for annual weeds of paddy rice direct-seeding fields or transplanting fields, effectively prevents and weeds the annual cyperus rotundus including barnyard grass, paspalum distichum, scirpus planiculmis, fescue, cyperus difformis, leptochloa chinensis, digitaria sanguinalis, yard grass, green bristlegrass, cyperus iria, amaranthus lividus and alopecurus aequalis and the like and has theadvantages that the weeding activity is high, the weed control spectrum is wide, and use is convenient; moreover, the weeding composition is safe to paddy rice and is an environment-friendly weed killer.