109 results about "Trifluralin" patented technology

Embryogenesis from plant microspores is routinely induced with a 16-24 h temperature treatment of 32.5° C. Continuous culture at 25° C. results in pollen development. However, microspore treatment with anti-cytoskeletal agents, or protein synthesis inhibitors, at the non-inductive temperature of 25° C., can induce embryogenesis, thus demonstrating that heat shock is not required for embryogenic induction. Furthermore, when anti-microtubule agents (e.g. colchicine) are used, embryo induction and chromosome doubling occur simultaneously, thus generating doubled haploids, whereas heat induction generates haploids. Thus, the use of microtubule inhibitors will provide a simple one-step process to simultaneously induce embryogenesis and chromosome doubling for the production of fertile plants, thus providing minimal manipulation which will be very advantageous for genetic studies and plant breeding programs. As noted, heat shock induces haploids. A low level of chromosome doubling can be obtained by adding colchicine to microspore cultures during the heat treatment. However, the use of trifluralin with the heat treatment, to generate doubled haploid plants results in an improved recovery of fertile doubled haploid plants than previously shown in the prior art.

The invention belongs to the field of pesticide weedicide and in particular relates to a weeding composition for cotton crops. The weeding composition contains active ingredients, namely pendimethalin or trifluralin and oxadiazon. The weight ratio of the pendimethalin to the oxadiazon is 100:1 to 1:100. The mass percentage content of the pendimethalin and the oxadiazon in the composition is 5-80%, preferably 10-60%. The mass percentage content of the trifluralin and the oxadiazon in the composition is 5-80%, preferably 10-60%. The dosage form of the composition can be water dispersible granules, missible oil, wettable powder, suspending agents, coating granules, extrusion granules, microcapsules, suspending agents and emulsion in water. The weeding composition is used for preventing and curing weeds in useful crops, weeds in cotton fields and nightshades, glaucum, cockspur grass, acalypha australis and Tong hemp weeds in the cotton fields.

The invention discloses a breeding method for inducing parthenogenesis of corn by trifluralin. The method is characterized by comprising the following steps of: selecting 48 percent trifluralin missible oil as an inducer, and diluting the trifluralin missible oil into 200-1,000-fold solution by using water; inducing, namely spraying or coating trifluralin diluent on thrums after the thrums on clusters come out; harvesting to obtain diploid seeds with homozygous genotype when seeds are mature; seeding in the next season, identifying truth according to phenotype and weeding out inferior plants,namely seeding the harvested clusters for the next generation, selectively harvesting rows according with a breeding goal, and thus obtaining a homozygous self-bred line of the corn. The invention has the advantages that: the trifluralin has low toxicity, can be used in the field under open conditions, and is safe to people, livestock and the environment; the inductivity is about 1.0 to 3.0 percent, pollination is not required, and the method is simple, easy to operate, low in cost and high in efficiency and can be used in a large scale; the diploid seeds are directly formed, and the process of doubling chromosomes is not required; and moreover, compared with that of the conventional seed selection method and a Stock 6 genetic induction method, the seed selection period is shortened by more than six generations and is shortened by more than one generation.

The invention discloses a method for doubling corn haploid by a herbicide and the special herbicide of the method. According to the method for doubling the corn haploid, the corn haploid is processed by the special herbicide to obtain corn diploid; and an active ingredient of the special herbicide is any one of the following chemical compounds: amiprophos-methl, propyzamide and trifluralin. The special herbicide consists of the active ingredient of the special herbicide, accessory ingredients and water; and the accessory ingredients consist of dimethyl sulfoxide and TWEEN-80 or dimethyl sulfoxide, TWEEN-80 and thienone. The special herbicide provided by the invention causes small environment pollution and is low in toxicity and residue and prone to degradation, and the dead rate of seedlings is 0 after the corn haploid is processed by a center dropping method with the special herbicide. The method is simple, convenient and efficient, and the doubling rate can reach 27.9%; and the doubling rate of the corn haploid processed by a bud immersion method with the special herbicide can reach 17.9%, and the dead rate of seedlings is obviously lower than that of the seedlings processed by colchicine. The method and the herbicide are suitable for large-scale operation, and can be applicable to large-scale breeding of the corn haploid.

The invention relates to a weeding composition, relating to the technical field of plant protection compositions, which can be used for resisting harmful plants, such as harmful plants in crop plants, and contains compositions of pendimethalin or trifluralin and penoxsulam as active ingredients. The weeding composition is characterized by containing the active ingredients, namely pendimethalin or trifluralin and penoxsulam. The weight ratio of the pendimethalin to the penoxsulam is 100:1 to 1:100. The weight ratio of the trifluralin to the penoxsulam is 100:1 to 1:100. The mass percentage content of the pendimethalin and the penoxsulam in the composition is 2-80%, preferably 5-60%. The mass percentage content of the trifluralin and the penoxsulam in the composition is 2-80%, preferably 5-60%. The weeding composition is used for preventing and curing weeds in useful crops and weeds in cotton fields.

Herbicidal compositions are disclosed comprising an effective amount of flufenacet and the other herbicide trifluralin. Further, a method of controlling harmful plants is disclosed. The disclosed herbicidal compositions have an improved application profile with regard to a simplified application process which reduces costs for the user and is thus more environmentally compatible. The herbicidal action on the weed plants is increased, and there is an enhanced crop compatibility. The disclosed herbicidal compositions have an improvement of crop plant compatibility and activity on addition of a safener on PE application and incorporation. The disclosed herbicidal compositions have an improved application flexibility of the active compounds extending into post-emergence of the crop and weed plants. The herbicidal action on the weed plants is increased, and there is an enhanced crop compatibility. The disclosed herbicidal compositions have an improved application flexibility of the active compounds which allows an application prior to sowing of the crop. The herbicidal action on the weed plants is increased with comparable crop compatibility. The disclosed herbicidal compositions have an improved reliability of action on soils having different soil properties. The application flexibility of the mixture on different soil types is improved. The disclosed herbicidal compositions have an improved reliability of action on resistant weed plant species. The reliability of action against TSR- and EMR-resistant plant species is markedly improved. The mixture is suitable for an effective resistance management.

The invention discloses a method for treating trifluralin pesticide wastewater by a diamond film electrode. The method comprises the following steps of: firstly enabling high-concentration trifluralin wastewater to pass through an electrolytic tank with a diamond film electrode; then applying voltage at a certain flow rate; and finally continuously treating the wastewater for a period of time under a certain voltage. The diamond film electrode has the advantages of great acid and alkali resistance, corrosion resistance, wide potential window and small background current, and various properties of the diamond film electrode are far better than those of traditional glassy carbon, graphite, precious metal and electrodes with other forms. According to the method disclosed by the invention, the diamond film electrode is used for treating high-salinity and high-COD (chemical oxygen demand) wastewater produced in the production of trifluralin, and the results show that within certain flow rate, voltage and time ranges, the removal rate of COD in the trifluralin pesticide wastewater is above 95%, dinitro in the wastewater is completely removed, the wastewater is colorless and odorless apparently, and the diamond film electrode is very suitable for treating the high-salinity and high-COD wastewater produced in the production of the trifluralin.

The invention discloses a green fluorescence carbon dot for detecting the concentration of trifluralin based on fluorescence quenching. The green fluorescence carbon dot is ellipsoidal, has a particlesize of 3.2-6.8 nm, and contains, by mass, 61-62% of C, 26-27% of O, 5.50-6% of P and 5-5.5% of N. The green fluorescence carbon dot has the advantages of excellent stability, excellent optical properties, good repeatability, high sensitivity, accurate and reliable detection result, and high selectivity to trifuralin, and can be applied to the detection of the concentration of the trifuralin herbicide in the environment after being combined with a trifuralin qenching standard curve. The invention also provides a preparation method of the green fluorescence carbon dot, a fluorescence detectionprobe, a construction method of the probe, and an application of the fluorescence detection probe in the detection of the concentration of the trifuralin in an environmental sample. The probe has theadvantages of simplicity in operation, low cost, environmentally-friendly reaction process, and elimination of the interference brought by other herbicides in the environment.

The invention discloses a special herbicide used in a nursery garden and a preparation method thereof, and belongs to the technical field of pesticides. The herbicide is prepared from the following raw materials in parts by weight: 15 parts of glyphosate, 2 parts of trifluralin, 1 part of imazethapyr, 0.1 part of metsulfuron-methyl, 1 part of a bactericide, 3 parts of auxiliaries and 80 parts of water, wherein the glyphosate is 41% water-based glyphosate, the trifluralin is 480g/L emulsifiable concentrate trifluralin, the imazethapyr is 70% particles and the metsulfuron-methyl is 60% particles; the bactericide is prepared by performing water extraction on garlic, veratrum nigrum, aconitum rotundifolium, fraxinella, elderberry, ailanthus and pokeberry root in a weight ratio of 10 to 2 to 2 to 2 to 2 to 5 to 10. The weeding active ingredients are combined for completely preventing the growth of weeds when being applied to seedling in the nursery garden, and meanwhile, plants cannot be influenced. The traditional Chinese medicine bactericide is added to the special herbicide, so that the incidence of soil-borne diseases and various root rot can be obviously reduced during weeding.

The invention discloses a method for removing nitrosamine from dinitroaniline herbicides. The method comprises the steps of: adding a solvent, haloid acid and a remover methylsulfonic acid in the production synthesis process of raw dinitroaniline herbicide or a raw dinitroaniline herbicide product, and carrying out nitrous removal reaction to convert byproduct nitrosamine into a target product, such as trifluralin, pendimethalin, Amex820, oryzalin, dinitramine, isopropalin, bulab-37 and fluchloralin, so that the nitrosamine content is not more than 1.0ppm and achieves the export standard.

The invention relates to a pesticide preparation and a preparation method thereof, in particular to a trifluralin emulsion in water and a preparation method thereof. The trifluralin emulsion in water comprises the following components in part by mass: 0.5 to 48 parts of trifluralin, 1 to 20 parts of solvent, 1 to 16 parts of emulsifier, 0.1 to 5 parts of thickening agent, 0 to 8 parts of antifreezing agent, 0.1 to 1.6 parts of defoaming agent, 0 to 3 parts of antimicrobial agent, a proper amount of pH value regulator, and the balance of deionized water. The trifluralin emulsion in water is a selective pre-emergence soil treatment agent, and is mainly absorbed through coleoptiles and hypocotyls of weeds. The trifluralin emulsion in water has the effect on gramineous and partial small-seed broadleaf weeds, and is applicable to cotton, soybeans, rape, peanuts, potatoes and the like. The trifluralin emulsion in water does not contain or rarely contains an organic solvent, so the manufacturing cost and use cost are reduced, and the toxicity produced to operators, storers and transporters, and users is reduced in the process of production, storage and transportation; and the trifluralin emulsion in water is a product which is environmental-friendly and has high safety.

The invention relates to a pesticide combination which contains an effective amount of uniconazole and trifluralin for synergism and is used for a tobacco suckercide. The weight ratio of the uniconazole to the trifluralin is 1:60-10:20, preferably, the weight ratio of the uniconazole to the trifluralin is 1:50-5:20, more preferably, the weight ratio of the uniconazole to the trifluralin is 2:40-3:50, and most preferably, the weight ratio of the uniconazole to the trifluralin is 2:40-2:45. A field pesticide effect experiment shows that under the condition of the same total using amount, the inhibition effect of the uniconazole and trifluralin-containing pesticide combination is obviously better than that of pharmaceutical single dosage, such as 480g/L of trifluralin emulsifiable concentrates, 5 percent of uniconazole wettable powder and 12.5 percent of flumetralin emulsion after being applied for 2, 4 and 6 weeks; and particularly, the butting inhibition effect of 45 percent of trifluralin*uniconazole water emulsion is up to 95.01 percent. The butting inhibition effect is the same as that of manual bud picking, but compared with a manual bud-picking plant, a plant applied with the pesticide combination is low in nutrition loss and low in labor cost. The invention also relates to a method for inhibiting growth of tobacco axillary buds by using a medicinal dosage and application of the medicinal dosage.

The invention relates to applications of pesticide active ingredient dicamba in inhibiting tobacco axillalry bud growth or in preparing a tobacco bud inhibitor. The invention also discloses a composition comprising another pesticide active component, wherein the pesticide active component is selected from uniconazole, trifluralin, prodiamine, flumetralin, pendimethalin, and butralin; and the weight ratio of dicamba to the pesticide active component ranges from 1:60 to 60:1. The pesticide active component can be made into a soluble liquid preparation, a micron emulsion, a water emulsion preparation, a suspending agent, a water dispersible particle preparation, a microcapsule preparation, a wettable powder, a missible oil, and the like. It is confirmed by experiments that the composition is used for inhibiting bud growth, and bud growth inhibiting effect is excellent, wherein dicamba is taken as the main active ingredient, and the composition is prepared from dicamba, the pesticide active component, and an auxiliary agent; no adverse influence on tobacco leaf chemical composition is caused by application of 40% of dicamba soluble liquid preparation, potassium content is increased, and tobacco leaf quality is improved.

The invention discloses a fermented water retention type sustained-release preparation and a preparation method thereof. The sustained-release preparation is characterized by comprising the following raw materials by weight: 100 parts of acrylic acid, 15-20 parts of straw fermentation broth, 5-7 parts of urea, 2-3 parts of trifluralin, 3-4 parts of fomesafen, 8-12 parts of sepiolite, 0.07-0.08 part of an initiator, 0.08-0.12 part of a crosslinking agent, 4-6 parts of sawdust, 3-4 parts of borax, 3-4 parts of polyvinyl alcohol, and 1.5-1.8 parts of guar gum. According to the invention, the weeding and insecticidal effective organic components and the organic fermentation broth are integrated, the fermentation broth provides sufficient organic matters for plant growth, the crop resistance to diseases is improved, the water absorption and drainage capacity is strong, the water permeability and air permeability of soil are enhanced, and the sustained-release effect of fertilizer is enhanced, the fermented water retention type sustained-release preparation has good biocompatibility, and is beneficial to sustainable development of resources.

The invention relates to an emulsifiable concentrate comprising an active ingredient being a dinitroaniline compound, preferably selected from the group consisting of pendimethalin, trifluralin and mixtures thereof. The emulsifiable concentrate of the invention avoids crystallization at low temperature when the concentration of the active ingredient is high. Accordingly, the emulsifiable concentrate comprises a diester co-solvent having the following formula R¹OOC—(CH₂)_n—COOR², wherein R¹ and R², identical or different, are C¹-C₁₀, preferably C₁-C₆, linear or branched, alkyl, aryl, alkaryl or arylalkyl groups, and n is an number of from 2 to 4.

The invention discloses a trifluralin micro-capsule suspending agent and preparing methods thereof.According to the formula, the trifluralin micro-capsule suspending agent is prepared from, by mass, 10-60% of trifluralin, 1-6% of an oily capsule material, 1-6% of a water-based capsule material, 5-15% of a dispersing agent, 0.1-1% of a defoaming agent, 0.5-6% of a thickening agent, 0.2-1% of preservative and the balance water.The provided trifluralin micro-capsule suspending agent is environmentally friendly, safe, low in toxicity, long in duration time of the pharmacological function, high in use ratio and capable of reducing phytotoxicity and avoiding negative production reduction of crops.In addition, the two preparing methods of the trifluralin micro-capsule suspending agent are high in safety factor and free of waste water and waste residue emission, and steam exhausted is nontoxic and inodorous and meets the requirement of environment protection.

The invention provides a rootstock cultivating method and a plant grafting method, and relates to the technical field of crop growing. The rootstock cultivating method comprises the steps of sowing seeds of a rootstock; spraying a polyploidy inductive agent on the seedlings of the rootstock after the seeds of the rootstock sprout. According to the rootstock cultivating method, by spraying the polyploidy inductive agent on the seedlings of the rootstock, the rootstock no longer continues to grow according to the regularity in itself, and a good basis is established for the grafting of other plants. In addition, the plant grafting method comprises the steps of sowing seeds of the rootstock and seeds of a cion respectively; spraying trifluralin on the seedlings of the rootstock after the seeds of the rootstock sprout; grafting the seedlings of the cion to the seedlings of the rootstock. According to the plant grafting method, by spraying the trifluralin on the seedlings of the rootstock and then conducting grafting work, the situation that the rootstock grows and reproduces according to an original regularity in itself is effectively inhibited, the rootstock can provide more nutrition for the growth of a grafted plant, and crop yield and disease resistance of the grafted plant are strengthened.

The invention relates to special orchard herbicide containing glyphosate, and belongs to the technical field of pesticides. The herbicide is prepared by the glyphosate, diuron, trifluralin, a traditional Chinese medicine combination, additives and water, wherein the traditional Chinese medicine combination comprises ailanthus, Chinaberry bark, pepper, garlic, Common threewingnut root, yellow cinnamon leaves, folium artemisiae argyi, rhizoma gastrodiae and radix sophorae flavescentis, and the additives are one or two of gypsum, orthoclase and grammite. The herbicide is broad in spectrum, efficient and low in toxicity and preparation cost. The added traditional Chinese medicine combination achieves a weeding effect and can also reduce soil-borne diseases of an orchard. The additives supplement nutrient elements such as potassium, silicon and calcium for soil when the herbicide is applied. The herbicide can make full use of comprehensive effectiveness of weeding, soil-borne disease prevention and fertilization through synergistic effects of all raw materials.

The invention discloses a trifluralin micro-capsule granule and a preparation method thereof. The trifluralin micro-capsule granule is prepared from the following raw materials in parts by weight: 12 to 30 parts of trifluralin, 15 to 25 parts of a solvent, 17 to 28 parts of urea-formaldehyde resin, 7 to 10 parts of an emulsifier, 2 to 3 parts of a dispersant, 0.5 to 1 part of an anti-freezing agent, 0.5 to 1 part of a viscosity regulator, 0.1 to 1 part of an ultraviolet absorber, 0.1 to 100 parts of water, and a proper amount of a pH regulator. The invention further discloses a preparation method for the trifluralin micro-capsule granule. According to the trifluralin micro-capsule granule disclosed by the invention, the stability and the safety of a preparation are improved through microencapsulation; meanwhile, the lasting period of the preparation is prolonged.

The invention discloses a benzimidazole fluorescent probe for trifluralin detection. The chemical structural formula is described in the specifications. O-phenylenediamine reacts with vanillic aldehyde to generate a benzimidazole ring, and N, N-diphenyl chloroformamide reacts with phenolic hydroxyl to synthesize the benzimidazole fluorescent probe for trifluralin detection. The benzimidazole fluorescent probe disclosed by the invention has high selectivity, high sensitivity and relatively low detection limit on trifluralin herbicides, and has a wide application prospect.

The invention discloses a special edible bean pesticide fertilizer and a production method thereof. The production method comprises the following steps: compositely mixing urea, calcium superphosphate, ultrasol potassium, ammonium molybdate, borax and DMPP (dimethyl-phenyl-piperazinium), pelleting so that the obtained pelleted mixture is used as an inner core, granulating twice by adopting a granulating material, and coating by adopting a coating agent, wherein the first-time granulating material comprises urea, monoammonium phosphate, natural potassium nitrate, compound potassium nitrophenolate, tea saponin.nicotine, sophocarpidine, DMPP and glue suspension, the second-time granulating material comprises urea, monoammonium phosphate, calcium magnesium phosphate fertilizer, natural potassium nitrate, amino acid trace element chelated salt, borax DMPP and glue suspension, and the coating agent comprises imidacloprid, thiram.carboxin, trifluralin, doer, a film-forming agent, pearl powder, titanium dioxide and dye. Through coating once, pelletizing time and using controlled-release material three times, the pesticide fertilizer can prolong an effective period of the urea from 15 days to 20 days, and further has the effects of weeding, killing pests, sterilizing and promoting plant to grow and fruit.

The invention relates to pesticide composite containing synergistic effective dose of uniconazole and prodiamine as a tobacco bud-restraining agent. The weight ratio of the uniconazole to the prodiamine is 1: 80 to 10:20, preferably, 1: 40 to 5:70, and most preferably, 2:60 to 2:70; the inhibition effect of the composite after being applied for 2, 4 and 6 weeks is better than that of each single dose such as 48% of ammonia trifluralin cream, 5% of uniconazole wettable powder and 36% of butralin cream; the effect is equal to that of the artificial interruption, so that lots of labor is saved. The pesticide composite also relates to a method and an application of the composite for inhibiting tobacco axillary bud from growing.