149 results about "Phytotoxicity" patented technology

The invention discloses an application of a CsESE3 gene or a protein coded by the CsESE3 gene in regulation and control of plant shoot development, and belongs to the technical field of plant genetic engineering. Traditional citrus crossbreeding is long in period of cultivating ideal plant type plants, low in selection efficiency and few in selectable cultivation characters. Manual shoot control is high in labor cost, and chemical shoot control has the risk of phytotoxicity. Aiming at the technical problems, the invention provides a new scheme for regulating and controlling the development of citrus branch tips based on CsESE3 gene expression: the development of the branch tips is obviously promoted after the expression of the CsESE3 gene is improved, so that the CsESE3 can become a target spot for regulating and controlling the development of the citrus branch tips.

The invention discloses a special growth regulator for pepper based on compounding of propionyl brassinolide and amino-oligosaccharin and application of the special growth regulator, and belongs to the technical field of agricultural biology. According to the regulating agent, 0.0008 to 0.0012 percent of propionyl brassinolide and 2.95 to 3.05 percent of amino-oligosaccharin are accurately matched with each other. The formula breaks through the contradiction between the root promotion requirement of high-dose amino-oligosaccharin and the safety threshold of low-dose brassinolide, and overcomes the phytotoxicity risk of the traditional dosage form. The regulator prepared by the invention can enhance the growth vigor of the pepper, improve the product and quality of the pepper, and also can effectively prevent viral diseases of the pepper.

The invention belongs to the technical field of pesticide compositions, and particularly provides a weeding composition containing topramezone or salt thereof, which comprises topramezone or salt thereof, agriculturally acceptable auxiliaries and biostimulant, the biostimulant is complex enzyme glycoside. The topramezone composition does not cause phytotoxicity to crops such as corn when used under the high-temperature condition, the use environment of topramezone is widened, and the topramezone composition can be used as a safe herbicide composition for field crops such as corn under the high-temperature condition in summer. Through further screening of auxiliaries, the weeding composition provided by the invention can improve the mixing performance of the preparation, has strong hard water resistance, is beneficial to plant absorption, improves the weeding effect, and is a safe and efficient herbicide preparation.

The invention discloses modified biochar as well as a preparation method and application thereof, and belongs to the technical field of aerobic composting additives, the preparation method of the modified biochar comprises the following steps: adding corn straw biochar into a Na2HPO4 solution according to a solid-to-liquid ratio of 1g: (5-10) mL by adopting an impregnation method, adjusting the pH value of a mixed system to 10.8-11.2 by adopting an alkali liquor, and stirring to obtain a mixed solution; then carrying out magnetic stirring reaction, and after the reaction is finished, carrying out centrifugal separation, washing and drying to obtain the modified biochar. The prepared modified biochar is used as an aerobic composting additive, so that greenhouse gas emission can be remarkably reduced, nitrogen retention and compost nutrient content are improved, compost maturity is promoted, plant toxicity is reduced, and a microbial community structure is directionally regulated and controlled. According to the invention, the functionality of the biochar is enhanced through chemical modification, the synergism of pollution reduction, synergism, carbon sequestration and decay promotion is realized, and an effective technical path is provided for realizing low-carbon, efficient and sustainable organic waste resource utilization.

The invention provides a preparation method and application of a chicken manure biogas slurry purified and refined component, the purified and refined component prepared by the method is a phytotoxicity relieving product which is wide in crop phytotoxicity application range and friendly to the ecological environment, and an application method capable of achieving phytotoxicity relieving and pesticide effect increasing on crops in multiple ways and at different time can be achieved. The two-way functional effects of relieving phytotoxicity and enhancing the pesticide effect are realized.

The invention belongs to the field of agricultural bactericides, and particularly relates to a bactericidal composition containing nano-zinc oxide and brucea javanica extract and application of the bactericidal composition, and the mass ratio of the nano-zinc oxide to the brucea javanica extract in active ingredients of the bactericidal composition is 40: 1-1: 40; the bactericidal composition disclosed by the invention has an excellent bactericidal effect, and shows excellent control effects on watermelon fusarium wilt, wheat stem rot, tobacco bacterial wilt, cotton damping-off, cotton damping-off, peanut root rot, peanut stem rot, damping-off, fusarium wilt, damping-off, root rot and the like of fruits, vegetables and beans; the bactericidal composition enhances the bactericidal broad-spectrum property and efficiency, is environment-friendly, does not generate phytotoxicity, is safe to crops, and has a good application prospect.

The invention relates to the field of pesticide preparations, and discloses a sterilization composition containing tetramycin and Saisentong as well as a preparation method and application of the sterilization composition. Tetramycin and Saisentong serve as active components of the composition, and a dual-structure composite lignin derivative system serves as a functional carrier; the system is composed of high-molecular-weight modified lignosulfonate and specific lignin phenol fragments with low polymerization degree. The high-molecular-weight component forms a physical barrier on the surfaces of active component particles, so that the storage stability and the application safety of the preparation are improved; the low-polymerization-degree component can be degraded by an extracellular enzyme secreted by citrus canker pathogen, so that the targeted release of the active component at the focus is realized. The composition disclosed by the invention effectively reduces the decomposition rate of the active components and the phytotoxicity risk to crops, and meanwhile, the field control effect on the citrus canker is remarkably improved. The composition provides an efficient and safe new choice with a targeting effect for chemical prevention and treatment of citrus canker.

The present invention addresses the problem of providing a plant growth aid which can achieve both the reduction of harmful effects thereof and the reduction of plant diseases at high levels.　The present invention is a plant growth aid containing particles having a volume average particle diameter of 10-1000 nm, wherein each of the particles contains a compound (X), copper, and chitosan as constituent components, and the compound (X) has at least two functional groups (x) that are of at least one type and are independently selected from the group consisting of a carboxyl group, a phosphoric acid group, and a sulfonic acid group, and salts thereof.

The invention relates to the technical field of plant breeding, in particular to a mutant of rice ALS protein and application of the mutant. The mutant is obtained by mutating an amino acid sequence of a rice wild-type ALS protein as follows: serine at the 627th site is mutated into threonine, glycine at the 628th site is mutated into histidine, and amino acid at the 629th site is deleted. The application comprises the following steps: (1) enabling plants to have ALS inhibitor herbicide resistance; (2) the resistance of plants to ALS inhibitor herbicides is improved; (3) the phytotoxicity of ALS inhibitor herbicides to plants is reduced; (4) weed control; (5) plant genetic breeding or seed production; and (6) serving as a plant transgenic selection marker. The rice ALS protein mutant is obtained through resistance stress screening, the mutant is reported for the first time, rice can have high resistance to more than two ALS inhibitor herbicides, and the rice ALS protein mutant has high market value and social benefits.

The invention discloses a compound herbicide and a preparation method thereof and relates to the technical field of pesticides. The compound herbicide is compounded by taking rimsulfuron, pyroxsulam and fluroxypyr-mepthyl as effective components and supplementing a safener, a surfactant, an emulsifier, a stabilizer and a solvent. The action mechanisms of the three active ingredients are complementary and synergistic, and annual gramineous weeds and broadleaf weeds in a corn field can be effectively prevented and removed. Through scientific compounding, the application dosage of a single component is remarkably reduced, pesticide residues in the environment and crops are reduced, meanwhile, potential phytotoxicity to the crops is effectively relieved by adding the safener, and the bactericidal composition has the advantages of being efficient, safe and environmentally friendly.

The invention relates to the technical field of rice herbicide phytotoxicity prevention and control, in particular to a method for relieving rice herbicide phytotoxicity in the seedling stage. Paddy rice seeds are soaked with a pyrroloquinoline quinine solution before sowing; the concentration of pyrroloquinoline quinine in the pyrroloquinoline quinine solution is 0.3 to 0.7 [mu] mol / L; the method comprises the following steps: spraying a pyrroloquinoline quinine solution on leaf surfaces in a period from two leaves to one core to three leaves of rice, wherein the concentration of pyrroloquinoline quinine in the pyrroloquinoline quinine solution is 1-2 [mu] mol / L; within 3-7 days after the pyrroloquinoline quinone solution is sprayed on the rice leaf surfaces, cyclopropanesulfonamide and a herbicide are mixed for use. PQQ and cyclopropanesulfonamide are coordinated to effectively relieve the phytotoxicity of herbicides to rice.

The invention discloses an application of 2-amino-3-indolyl butyric acid as a plant phytotoxicity alleviator. According to the application of the 2-amino-3-indolyl butyric acid in the preparation of the plant phytotoxicity alleviator, the concentration of the 2-amino-3-indolyl butyric acid in the preparation is 10-1000 nM. The 2-amino-3-indolyl butyric acid is found to be capable of effectively relieving plant phytotoxicity through seed soaking treatment, and the yield of plants is increased. Under the concentration of 1000nM, the damage of the fluridine.pentus.fenitrothion and the fenitrothion .ethylicin to the rice seeds is relieved in a seed soaking manner, so that the purpose of strengthening the seedlings is achieved; when the concentration is 100 nM, the pesticide damage of isoproturon to wheat seeds can be relieved, and the germination rate, bud length and root length of the wheat seeds are remarkably increased. The 2-amino-3-indolyl butyric acid is a natural product, is low in dosage and environment-friendly, and can effectively relieve plant phytotoxicity, so that the 2-amino-3-indolyl butyric acid is a green and efficient biological source plant phytotoxicity alleviator.

The application discloses a triazine herbicide propoxur degrading bacterial strain and application thereof, the bacterial strain is SWFU-DH02 strain which is negative in gram staining reaction and is identified as Microbacterium sp. Exiguobacteruim sp. ) on November 22, 2021, and is deposited in the China General Microbiological Culture Collection Center, and the strain preservation number is CGMCC No. 23948. The application discloses, for the first time, the degradation effect of Microbacterium sp. Exiguobacteruim sp. ) on triazine herbicide propoxur, and a Microbacterium sp. high-efficiency degrading bacterium SWFU-DH02 is screened, the degradation efficiency of the bacterium on propoxur can reach 75.08%, and the bacterium grows optimally under the conditions of pH 7.0, temperature 28 DEG C and salt concentration 1%. The degrading bacterial strain SWFU-DH02 has the characteristics of simple culture, rapid growth and high efficiency of degradation. The application can solve the pollution problem of triazine herbicide propoxur in soil or water, prevent the phytotoxicity of herbicide residues on subsequent crops, and produce non-toxic and non-polluting green agricultural products. The application provides a new biological approach for modern pesticide pollution control.

The present invention primarily relates to the use of compositions comprising L-glufosinate and / or salts thereof in a glufosinate tolerant field crop in foliar application, wherein the compositions contain less than 5 mol.-% of D-glufosinate and / or salts thereof, based on the total amount of L-glufosinate and salts thereof, under certain environmental conditions to achieve an increase in the control of harmful plants and / or a reduction of phytotoxicity in the tolerant field crop. The present invention also relates to according methods of treating a tolerant field crop using the mentioned compositions.

The invention relates to the technical field of weed suppression active substances, in particular to application of 2-piperidinecarboxylic acid in inhibition of barnyard grass seed germination and growth. According to the method, the influence of the 2-piperidinecarboxylic acid on the germination of the barnyard grass seeds is investigated by taking the germination rate of the barnyard grass seeds as an index, and the influence of the 2-piperidinecarboxylic acid on the growth of the barnyard grass is investigated by taking the root length, the seedling length / plant height and the fresh plant weight of the barnyard grass seedlings as indexes. The inhibition effect is enhanced along with the increase of the concentration of the 2-piperidinecarboxylic acid, and under the inhibition effect concentration, the 2-piperidinecarboxylic acid is safe to the growth of transplanted rice seedlings and does not generate obvious phytotoxicity. Therefore, the 2-piperidinecarboxylic acid can be effectively applied to inhibition of germination and growth of the barnyard grass seeds, and can also be applied to preparation of products for inhibiting germination and growth of the barnyard grass seeds.

This invention discloses a method for low-carbon and high-efficiency organic fertilizer production through tiered oxygen supply composting. This invention uses a compound microbial agent as its core, achieving simultaneous breakthroughs in compost maturity and fertilizer efficiency. By precisely delivering targeted compound microbial agents in stages and coupling them with a tiered oxygen supply strategy, this invention directionally regulates the structure and function of the microbial community, significantly improving organic matter conversion efficiency and the degree of humification. The final product shows a significant increase in organic matter content of 31%, and the seed germination index increases from 71% to 89%, demonstrating its excellent effects in thorough composting and eliminating phytotoxicity. In pot experiments, the biomass of maize plants increased by approximately 97%, further verifying the significant promoting effect of high-quality DOM (dominant organic matter) formed by functional microbial agents on fertilizer efficiency.

The present application belongs to the technical field of herbicide safener, and particularly relates to the use of chlorindole hydrazide as a herbicide safener, chlorindole hydrazide as a safener of nicosulfuron, carfentrazone-ethyl, benzenesulfonamide and quizalofop-p-ethyl, which can relieve or eliminate the crop phytotoxicity caused by the above herbicides, and is applied after or before the crop phytotoxicity is caused. The application amount of chlorindole hydrazide (converted into the original drug) is 1-2 g / mu, the mass concentration of chlorindole hydrazide is 0.00667-0.01333% when applied, and a very good control effect can be achieved.

The invention provides application of mineral oil in improving the control effect of a copper preparation on broccoli black rot and relieving phytotoxicity, and belongs to the technical field of plant disease control. According to the invention, a 200-fold diluent of 99% mineral oil and a 200-800-fold diluent of 30% copper oxychloride suspending agent are compounded according to a ratio of 1: 1 to prepare a compound medicament, and the compound medicament can be applied to prevention and treatment of black rot of broccoli; the prevention and control method comprises the step of spraying the compound pesticide on leaf surfaces. The mineral oil and the copper oxychloride suspending agent are compounded to generate a synergistic effect, so that the prevention and treatment effect on the broccoli black rot is improved, the phytotoxicity caused by copper preparation stress is reduced, and the composition is resistant to rain wash, long in lasting period and suitable for efficient and green prevention and treatment of the broccoli black rot.

The invention discloses a preparation method and a preservation method of an FA-Se-coated SNCsNPs / starch / gelatin composite film, and the preparation method comprises the following steps: (1) synthesizing selenium nanoparticles (SeNPs) through a chemical method by taking Vc as a reducing agent and sodium selenite as a selenium source; (2) preparing selenium nanoparticles (Se (at) SNCsNPs) loaded on starch nanocrystals (SNC); (3) adding ferulic acid into the product obtained in the step (2) to prepare composite nanoparticles (FA-Se-SNCsNPs) with a synergistic interaction effect; (4) adding the nanoparticles prepared in the steps (1), (2) and (3) as a filler into a starch / gelatin composite matrix membrane solution; and (5) smearing each coating liquid on the Zaosu pears for preservation. According to the method, the stability of the selenium nanoparticles is realized, the oxidation resistance of the selenium nanoparticles is improved, and the phytotoxicity of precipitation or aggregation caused by unstable particles on the Zaosu pears is avoided in the process of prolonging the quality of the harvested Zaosu pears.

The invention discloses a whole-cycle green comprehensive management method for waxberries, and belongs to the technical field of agricultural planting. According to the method, the compound microorganism fertilizer is applied underground, mineral oil is continuously sprayed on the ground in multiple growth stages to prevent and control aphids, whiteflies and scale insects, and multiple biostimulant combinations are accurately sprayed in the key phenological stage to comprehensively improve the quality of leaves and fruits. And the problems of demulsification, flocculation and phytotoxicity of mineral oil caused by water hardness in traditional mixing are effectively solved through an innovative barrel mixing process. According to the method, three technical means are systematically integrated to form a synergistic green management system, the problems that in traditional waxberry planting, chemical pesticide dependence is high, and the contradiction between pest control and quality improvement is prominent are effectively solved, and efficient, high-quality and sustainable development of waxberry production is achieved.

This invention belongs to the field of ecological environment monitoring technology and relates to a multi-level bioindicator method for the effective phytotoxicity of heavy metal-like substances / heavy metals. The method includes the following steps: S1. Obtaining plant samples affected by the soil or water body to be tested; S2. Measuring the activity of superoxide dismutase (SOD), gibberellin (GA), and chlorophyll content in the plant samples; S3. Based on the measured results of SOD activity, plant hormone content, and chlorophyll content, and their changes over time, classifying and assessing the effective phytotoxicity effects of heavy metal-like substances or heavy metals. This invention is the first to propose a unified three-level bioindicator method (SOD activity, GA hormone, and chlorophyll) that can effectively reflect soil pollution levels for typical heavy metal-like substances / heavy metals present in the actual environment, enabling a simpler assessment of the degree of heavy metal pollution in actual soil.

The application relates to the technical field of plant protection, in particular to application of ferroptosis inhibitor-1 in preparation of a toxitant inhibitor of mycotoxin and a pesticide composition. The application finds that the ferroptosis inhibitor-1 can significantly improve the tolerance of plants to mycotoxin poisoning, has the effect of relieving the plants from mycotoxin poisoning, and helps the plants and seeds to normally germinate and grow under the condition of high-concentration mycotoxin.

The invention relates to bromine- or iodine-para-substituted [(1,5-diphenyl-1H-1,2,4-triazol-3-yl)oxy]acetic acid derivatives and their salts, to agents for protecting useful plants or crop plants comprising them, to methods for producing them and to their use as safeners. The present invention relates to protection compounds and agents for useful plants, which compounds and agents comprise specific compounds as safeners for reducing phytotoxic effects of agrochemicals, especially herbicides. The invention relates more particularly to bromine- or iodine-para-substituted [(1,5-diphenyl-1H-1,2,4-triazol-3-yl)oxy]acetic acid derivatives of the general formula (I) and their salts, to methods for producing them and to the their use as protection compounds (safeners) for useful plants.

The utility model provides a directional spraying device for a sprayer, which comprises an adapter, a protective cover and a plurality of nozzle components, one end of the adapter is provided with a spray rod butt joint, and the other end of the adapter is provided with a plurality of nozzle butt joints. The multiple nozzle butt joints penetrate into the protective cover, the adapter is detachably fixed to the protective cover through a fixing structure, and the multiple nozzle assemblies are arranged on the nozzle butt joints in a one-to-one correspondence mode; during use, the nozzle assembly sprays pesticide flowing through the adapter, and the sprayed pesticide is limited in an area defined by the protective cover through the protective cover; the pesticide spraying device is simple in structure, pesticide sprayed by the nozzle assembly is limited in an area defined by the protective cover by the protective cover when the pesticide spraying device is used, so that the pesticide can be directionally sprayed to a weed area, and pesticide drifting is prevented from causing phytotoxicity to crops and polluting the environment; in addition, the spray rod butt joint can be connected with spray rods on various sprayers, actual use is more convenient, and practicability is high.

The invention relates to the technical field of pesticides, in particular to mesotrione soluble liquid as well as a preparation method and application thereof. The mesotrione suspending agent comprises the following components in percentage by mass: 5-40% of mesotrione technical, 5-30% of a solvent, 3-20% of a surfactant, 1-10% of an antifreeze agent, 0.3-3% of a pH regulator and the balance of deionized water. According to the invention, the solubility of mesotrione is improved by selecting proper solvent, antifreezing agent and surfactant and reasonable proportion, so that the soluble liquid with high stability and high drug effect is prepared. The mesotrione soluble liquid can be applied to prevention and removal of weeds in uncultivated land and cultivated land, and does not cause phytotoxicity to crops. The herbicide is an agricultural herbicide which is good in weeding effect, simple in production process and free of environmental pollution.

The invention discloses a composite moss inhibitor as well as preparation and application thereof. The composite moss inhibitor comprises L-proline, L-tyrosine and catechol in a mass ratio of (10-30): (0.1-0.3): (10-30), and can be applied to inhibiting or killing spirogyra in a water body. After the L-proline, the L-tyrosine and the catechol are compounded, the growth of spirogyra can be effectively inhibited, the spirogyra can be obviously inhibited under the condition of lower dosage, and the inhibition rate on the spirogyra is up to 90% or above. Meanwhile, the method is safe to crustacean aquaculture animals, water pollution and phytotoxicity phenomena can be effectively avoided, and the method has a good application prospect in aquaculture.

The present application provides a kind of herbicide composition for anti-benzoxyacetone phenoxy acid double oxygenase inhibitor and the herbicide safener containing quinoline structure;The herbicide composition prepared by the present application can reduce the phytotoxicity of herbicide to gramineous crops such as wheat, rice and millet without affecting the efficacy of herbicide;For three different gramineous crops such as wheat, rice and millet, the composition of the present application is significantly better than the composition for reducing the phytotoxicity of herbicide to rice and millet in reducing the phytotoxicity of herbicide to wheat.

The application discloses a plant growth regulator and application thereof in relieving imazamox herbicide injury to rice. The main components of the plant growth regulator include leucine, isoleucine and valine, and the plant growth regulator is combined with imazamox in a certain application mode and proportion, and is sprayed on rice seedling leaves, so that the effect of relieving imazamox herbicide injury is better than that of the commonly used protective agent, namely, bihuhu or brassinolide on the market, and the herbicide effect of the herbicide is not affected. The application also clearly defines the application conditions of the safety agent, and is a plant growth regulator which can effectively relieve imazamox herbicide injury to rice and does not reduce the herbicide effect on weeds.

The embodiment of the invention provides a crop phytotoxicity detection method and device and a storage medium. The method comprises the following steps: acquiring a multispectral image of crops in a planting area; carrying out splicing processing on the multispectral images to respectively obtain an RGB image, an NDVI image and a GNDVI image of the crop; extracting texture features of crops from the RGB image; performing deconvolution processing on the texture features to obtain plant pattern spots and a current growth period of the crops; determining a growth feature matrix of the crops according to the NDVI image and the GNDVI image; the phytotoxicity degree of the crops is determined according to the plant pattern spots, the current growth period and the growth vigor characteristic matrix, so that phytotoxicity detection of the crops is more accurate.

The invention belongs to the technical field of herbicides, and particularly relates to a herbicide for preventing and controlling field weeds, the active components of the herbicide are formed by binary compounding of cyclopyridazinofop-p-methyl and pyrazol-quinclorac-ethyl, or ternary compounding of cyclopyridazinofop-p-methyl, pyrazol-quinclorac-ethyl and tefuryltrione. Compared with the prior art, the weeding composition has the advantages that the cyclopyridazinate is compounded with the pyrazalofop-p-ethyl, or the cyclopyridazinate is compounded with the pyrazalofop-p-ethyl and the tefuryltrione, so that the control effect on gramineous weeds such as barnyard grass in the field can be improved, the spraying dosage of a herbicide can be reduced, the control cost can be reduced, and meanwhile, the generation of crop phytotoxicity can be reduced. Besides, the herbicidal action mechanism of the cyclamefone in the herbicide is different from that of other components, so that weeds can be prevented and removed from different action sites when the herbicide is used, the development and accumulation of drug resistance of the weeds are slowed down, and the updating period of the herbicide can be prolonged. In conclusion, the invention can provide support for development of novel efficient herbicides.