78 results about "Dazomet" patented technology

Disclosed is a herbicidal mixture comprising (a) at least one herbicide compound selected from the pyrimidines of Formula 1, including all geometric and stereoisomers, N-oxides, and salts thereof:whereinR1 is cyclopropyl, 4-Br-phenyl or 4-Cl-phenyl;X is Cl or Br;R2 is H, C1-C14 alkyl, C2-C14 alkoxyalkyl, C3-C14 alkoxyalkoxyalkyl, C2-C14 hydroxyalkyl or benzyl; and(b) at least one additional herbicide or herbicide safener compound selected from the group consisting of (b1) ACCase inhibitors, (b2) AHAS inhibitors, (b3) photosystem II inhibitors, (b4) photosystem I electron diverters, (b5) PPO inhibitors, (b6) EPSP synthase inhibitors, (b7) GS inhibitors, (b8) VLCFA inhibitors, (b9) auxin mimics, (b10) auxin transport inhibitors, (b11) other herbicides selected from the group consisting of flamprop-M-methyl, flamprop-M-isopropyl, difenzoquat, DSMA, MSMA, bromobutide, flurenol, cinmethylin, cumyluron, dazomet, dymron, methyldymron, etobenzanid, fosamine-ammonium, isoxaflutole, asulam, clomazone, mesotrione, metam, oxaziclomefone, oleic acid, pelargonic acid and pyributicarb, (b12) herbicide safeners selected from the group consisting of benoxacor, 1-bromo-4-[(chloromethyl)sulfonyl]benzene, cloquintocet-mexyl, cyometrinil, dichlormid, 2-(dichloromethyl)-2-methyl-1,3-dioxolane, fenchlorazole-ethyl, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen-ethyl, mefenpyr-diethyl, methoxyphenone, naphthalic anhydride and oxabetrinil, and their salts. Also disclosed is a method for controlling the growth of undesired vegetation comprising contacting the vegetation or its environment with a herbicidally effective amount of a mixture of the invention (e.g., as a composition described herein).

A pest control composition and a pest control method which have the heightened effect of controlling harmful insects living in soils and / or seeds and simultaneously have the heightened effect of controlling diseases infectious through soils and / or seeds. The pest control composition contains as active ingredients at least one organophosphorus compound selected from the group consisting of S-sec-butyl O-ethyl 2-oxo-1,3-thiazolidin-3-ylphosphonothioate, O-ethyl-S-n-propyl(2-cyanoimino-3-ethylimidazolidin-1-yl)-phosphonothiolates, and S,S-di-sec-butyl O-ethyl phosphorodithioate and at least one bactericide selected from the group consisting of fluazinam, benomyl, tolclophos-methyl, metalaxyl, captan, iprodione, chlorothalonil, dazomet, hymexazol, flutolanil, and validamycin. The method comprises using the composition.

The invention relates to mixed application technology of a compound micofume (DZ, whose common name is dazomet) and 1,3-dichloropropene (1,3-D) for controlling root-knot nematodes, soil-borne pathogenic fungi, and weed activity. The mixed application technology is suitable for pre-seeding soil disinfection of crop fields of vegetables, strawberries, flowers, gourds, nurseries, orchards, tea gardens, vineyards, forest trees, Chinese herbal medicines, and the like, and can effectively control southern root-knot nematodes, main soil-borne pathogenic fungi, main gramineae and broad-leaf weeds, and the like.

A phosphate-free, highly-concentrated aqueous dispersion composition comprising at least one biocide, sulfosuccinate based surfactant, block copolymer, suspending agent, and optionally an antifoaming agent and desired additives if any. The composition of the present application is significantly stable against heat, cold, transit, storage and dilution for at least 18 months. The preferred biocides of the dispersion composition are 2-meth-4-isothiazolin-3-one (MIT), 1,2-Benzisothiazolin-3-one (BIT), 5-Chloro-2-methyl-4-isothiazolin-3-one (CMIT), 2-Octyl-4-isothiazolin-3-one (Off) 3-Iodo-2-propynylbutyl carbamate (IPBC), oxyfluorfen, thiabendazole, terbutryn, zinc pyrithione (ZnPy), bronopol, folpet, diiiron, dehydroacetic acid (DHA), dazomet and carbendazim alone or in combination. Also disclosed is a process for preparing the dispersion composition and appropriate applications thereof.

The invention relates to a special method for applying 98% of Longxin dazomet microgranule, belonging to the technical field of disease and insect pest prevention and treatment. The method comprises the following steps of: ploughing 2-4 times when the relative water content of soil is 70%-75%, spreading the 98% of Longxin dazomet microgranule over the ploughed land parcel to be applied with the application amount of 30-40kg / 666.7 square meters, harrowing to the depth of 30cm, and then covering and sealing for 30-40 days by using a thin film at the average temperature of 0-20 DEG C; and turning up the soil and opening to the air for 7-10 days, and then planting crops with the conventional method. On the premise of ensuring the effects of prevention and treatment, the invention greatly reduces the application amount of the 98% of Longxin dazomet microgranule, thereby lowering the drug cost on each unit area, reducing the drug damage to the soil and atmosphere and lowering the environmental cost.

The invention discloses a high-yield peanut cultivation method for relieving successive cropping obstacle. The high-yield peanut cultivation method for relieving successive cropping obstacle comprisesthe following steps: (1) soil preparation: laying lime nitrogen and dazomet, and ploughing; (2) ridging and film mulching: laying trickle irrigation tubes while film mulching; (3) trickle irrigation:controlling water to permeate into the soil with the depth being 20 cm or above; (4) seeding hole forming: forming seeding holes in films to release toxic gas; (5) seeding: carrying out trickle irrigation through the trickle irrigation tubes in time after seeding, and during trickle irrigation, dropwise adding liquid peanut nitragin along with water; and (6) trickle irrigation and bacterial supplementing: carrying out trickle irrigation in a peanut four-leaf stage, and dropwise adding a compound microbial additive along with water for supplementing beneficial bacteria. The soil sterilizing effect is improved, the beneficial bacteria are supplemented, irrigation can be implemented as required, successive cropping obstacle can be relieved effectively, and growth and development of peanuts are promoted. The heights of stems of the peanuts are increased by 8.4%-25.6%, the branching number is increased by 4.1%-19.4%, the number of fruits of a single plant is increased by 3.1%-17.7%, the weight of one hundred peanuts is increased by 6.0%-11.9%, the full fruit rate is increased by 3.6%-7.3%, and the yield of legume is increased by 8.1%-28.9%.

The invention discloses a method for treating continuous cropping soil of panax pseudo-ginseng by using a soil fumigant dazomet. The method comprises the following steps of: (1) soil preparation, (2)fumigation pretreatment, (3) film covering for fumigation and (4) film removing for ventilation. The method has the advantages that: the seedling survival rate of seed twigs of panax pseudo-ginseng inthe continuous cropping soil can be improved effectively, and meanwhile the growth trend of plants of panax pseudo-ginseng can be enhanced effectively; and the continuous cropping soil can be supplemented with trace elements through pretreatment of the continuous cropping soil, so that the seedling survival rate of the seed twigs of panax pseudo-ginseng in the soil is improved.

The present invention discloses a method for efficiently preventing and controlling watermelon wilt and a special microorganism strain thereof. The method comprises: removing previous crop residues in soil; after rotary tillage, applying an organic fertilizer and a chemical fertilizer; spreading dazomet and adjusting moisture content of the soil; covering a plastic thin film by taking a watermelon planting row as a center; burying the edge of the thin film into the soil; after disinfecting for 12-20 days, cutting off the plastic thin film and uncovering the plastic thin film to two edges; ventilating for 3-4 days and uniformly spreading a trichoderma solid microbial agent; and planting watermelon seedlings and covering the periphery of the watermelon seedlings with the plastic thin film, the trichoderma solid microbial agent being prepared from green trichoderma with a preservation number of CGMCC No.9293. With the adoption of the method disclosed by the present invention, the pollution to the environment, caused by the utilization of a dazomet disinfectant and the plastic thin film, is reduced, and the inhibition effect on the growth of watermelon wilt bacteria is intensive, so that the aims that the increase of the quantity of pathogenic bacteria is continuously inhibited and the disease prevention and control effect is enhanced can be realized.

The invention relates to a soil micro-ecological environment restoration method for preventing and treating soil-borne diseases, which belongs to the technical field of agricultural disease prevention and treatment. The invention relates to a soil micro-ecological environment restoration combined agent and a use method for preventing and treating soil-borne diseases. The soil micro-ecological environment restoration method is characterized by comprising the following steps of: adopting solid stable chlorine dioxide and a microbial agent as the soil restoration combined agent, combining the chlorine dioxide and the microbial agent according to the effective proportion of 1: (10-100) of the chlorine dioxide to the microbial agent and operating so as to be used for soil micro-ecological environment restoration and prevention and treatment of the soil-borne diseases. According to the method, the operation is novel, the efficiency is high, the environment is protected, the cost is low, notonly are the problems of high cost, large toxicity, pollution to the environment and damage to the soil micro-ecological environment in the existing agent for preventing and treating the soil-borne diseases solved, but also the soil quality can be improved, the growth of plants is enhanced, the promotion value is very high, and the soil micro-ecological environment restoration method is a very effective technology for replacing methyl bromide, dazomet and chloropicrin and is also a sustainable utilization technology for the soil in agricultural fields.

The invention discloses a composition and a method for preventing and treating root-knot nematode, soil borne pathogenic fungi and weeds, and belongs to the technical field of pesticides. The composition consists of dazomet preparation and dimethyl disulfide preparation. The using method of the composition comprises the following steps of: performing deep tillage on the soil, then applying the dazomet preparation into the soil, injecting the dimethyl disulfide preparation into the soil for applying the dimethyl disulfide preparation into the soil through a dropping system, covering a film on the soil by a reverse burying method, fumigating the soil for 2-4 weeks, ventilating the soil for 3-12 days, and planting a crop seed to be cultivated into the soil after the soil does not contain any insecticide residues based on the qualitative judgment of a sprouting test. The composition is suitable for sterilization of the soil before vegetables, strawberries, flowers, melons, nursery gardens, fruit gardens, tea gardens, grape gardens, forests, traditional Chinese medicinal crops and the like are planted; and therefore, the southern root-knot nematode, the main soil borne pathogenic fungi and the main graminaceous and broad leaf weeds can be effectively prevented and treated.

The invention discloses a blueberry seedling tending substrate comprising raw materials in parts by volume as follows: 400-500 parts of a sawdust and cow dung mixed fermented substance, 150-200 parts of turf, 70-100 parts of perlite, 30-50 parts of vermiculite, 200-300 parts of brown soil, 0.1-0.2 parts of dazomet, 0.1-0.2 parts of sulfur powder, 0.1-0.3 parts of trichoderma and 1.5-2.5 parts of controlled-release fertilizer. The invention further discloses a preparation method of the blueberry seedling tending substrate. The method comprises steps as follows: (1) mixing the sawdust and cow dung mixed fermented substance, the turf, the perlite, the vermiculite and the brown soil in proportion; (2) adding the dazomet to the substrate, evenly mixing the mixture, performing closed fumigation, performing ventilation for loosening the substrate after sterilization, and performing sufficient ventilation; (3) adding the sulfur powder and adjusting the pH value of the substrate to range from 4.5 to 4.8; (4) adding the trichoderma and the controlled-release fertilizer and evenly mixing the substrate before the substrate is placed in a bowl. The physical and chemical properties of the screened compound substrate meet the blueberry growth requirement, plants are strong and have few pest and disease damage, and the whole character is excellent.

The invention relates to a sterilization algicide and application of the sterilization algicide, and in particular relates to a sterilization algicide suitable for an industrial water system and application of the sterilization algicide, belonging to the technical field of chemical engineering. The sterilization algicide comprises the following components by weight percent: 1-80 percent of dazomet, 1-50 percent of phosphonium salt, 5-10 percent of an organic solvent, 5-10 percent of a penetrant and the balance being water. The sterilization algicide has the advantages of high efficiency, persistency, low toxicity, generality, high compatibility, high stability, low corrosion property, low cost and the like. Compared with the similar sterilization algicide, the sterilization algicide disclosed by the invention can suppress and interfere the normal growth of slime and prevent multiple layers of composite slime containing various living bodies; furthermore, the algicide can quickly penetrate into the slime to enable biological slime attached to a pipe wall to be stripped off and dispersed into water, so that the heat transmission effect and the cooling effect of a circulating cooling water pipeline are improved, and the corrosion rate of the pipe wall is reduced. The sterilization algicide can be also used for controlling and killing alga.

The invention discloses treatment restoration particles of soil disease. The treatment restoration particles are mainly formed by an oxidic compound medicament and an inorganic gelatinous material through mixing. The treatment restoration method particularly includes: mixing the oxidic compound medicament with the inorganic gelatinous material according to a mass percentage ratio of 1:5-50; after mixing, vibrating through a vibrating screen to form particles of 5-10 mm in particle size; wrapping the particles with a water-soluble thin film, and heating the water-soluble thin film to enable the same to contract with heat and then closely fit on the outer surfaces of the particles. The treatment restoration particles can sterilize and regulate PH value and physiochemical properties of soil, and are nontoxic and free of residue, teratogenicity, carcinogenicity, mutagenicity and secondary pollution, and the treatment restoration method is a quite effective bromomethane, dazomet and chloroform substitute technology. The treatment restoration method is simple to operate, time-saving, labor-saving, free of breaking original planting habits of farmers, free of being influenced by soil environment, soil desertification, PH value and weather conditions and high in practicability.

The invention discloses an eggplant seedling culture method, and belongs to the technical field of agriculture. The method includes the following steps of S1, conducting seed soaking and germination accelerating; S2, filling a tray with seedling culture soil; S3, conducting sowing; S4, conducting daily management; S5, cutting cion; S6, rebreeding eggplant seedlings. A germination accelerating agent for germination accelerating is prepared from gibberellic acid and alginic acid, and the germination rate and germination speed can be increased. The seedling culture soil comprises peat soil, perlite, horticultural vermiculite, coco coir, pseudomonas fluorescens, chitosan oligosaccharide and dazomet, can provide sufficient nutrients and reduce diseases for eggplant seedlings and make the eggplant seedlings rapidly grow to robust plants. When eggplant seedling culture is completed, rebreeding is conducted after eggplant cion is cut, and the plant resources can be sufficiently used and culture benefits can be improved. By means of the method, the eggplant emergence rate and the survival rate can be increased, the disease rate is reduced, and the eggplant seedlings are uniform in growth vigor, high in uniformity, rapid in growth, plentiful in seedling robust roots and beneficial for later-period planting management.

The invention discloses a method for preparing a transplanting matrix for blueberry pot seedlings. The method comprises the following steps: (1) surveying the soil pH of a seedling raising field; (2) deeply plowing the seedling raising field by the depth of 30-40cm, and removing foreign bodies such as stone; (3) applying sulfur powder to the seedling raising field so as to adjust the soil pH value to an appropriate pH value, meanwhile, broadcasting dazomet to the seedling raising field, carrying out uniform stirring, and then, covering the seedling raising field with films for fumigation; (4) adding peat and fermented sawdust which are in a certain ratio into soil, so as to improve the soil and increase the organic matter content of the soil; and (5) carrying out uniform stirring mechanically, so as to obtain a mixture for later use. According to the method, the dazomet is adopted to fumigate the soil, so that the disease damage caused by meloidogyne spp. is avoided, and the cost for treating weeds is reduced; meanwhile, the soil pH value is adjusted by using the sulfur powder, and a synergetic effect of the dazomet and the sulfur is generated, so as to obtain a better effect; and the fermented sawdust and the peat are added and interact with the sulfur, so that the structural formation of soil aggregates is promoted, the organic matter content is increased, the quality of the soil is improved, and the success rate of blueberry seedling raising is greatly increased.

The invention relates to a soil treatment and bio-organic fertilizer combined method for controlling a crop wilt disease. The method includes: disturbing original soil microorganism flora through dazomet fumigating; applying a Nangbowang compound microbial fertilizer to improve the number of beneficial bacterium in soil and decrease the number of fusarium oxysporum in soil (the number is less than or equal to 5.4*103 cfu / g, wherein when the number of the fusarium oxysporum is less than 104 cfu / g, the wilt disease can be effectively controlled), and establishing a disease-suppressing soil microorganism zone. The test result shows that after soil in which continuous cropping of more than or equal to 7 times of crops (cucumber, watermelon, muskmelon, bitter gourd, and banana) is performed and the crops have no fruits at all due to the wilt disease, compared with a contrast, the morbidity of the crops is decreased by 87.5-91.0%, and the yield of crop fruits is increased and is 9.87-29.54 times that of the contrast. The method can effectively suppress the crop wilt disease, and can ensure sustainable development of intensive crop production.

The invention relates to the field of pesticides preparations and discloses dazomet coated controlled-release granules. The dazomet coated controlled-release granules comprise the following components in percentage by weight: 1-80% of dazomet, 1-70% of a carrier or a binder, 1-20% of a coating material, 1-10% of a film-forming aid, 0.5-5% of an organic solvent. The dazomet coated controlled-release granules are prepared form dazomet serving as an active ingrediment and selected proper film-forming aid, coating material, carrier, binder and the like, have long-lasting and constant prevention effect on nematodes and weeds, is superior to the existing dazomet pesticides, and can be used for effectively protecting crops from pathogenic bacteria, nematodes and weeds.

The invention relates to wettable powder, powder or a microgranule preparation prepared from accessory ingredients, such as a wetting agent, a dispersing agent, fillers and the like, and a pesticide composition containing dazomet and 1,3-dichloropropylene for controlling soil-borne diseases such as Phytoph-thora capsici Leonian and the like as well as Meloidogyne. The invention also discloses a method for preventing the soil-borne diseases such as the Phytoph-thora capsici Leonian and the like as well as Meloidogyne by using the composition containing the dazomet and the 1,3-dichloropropylene. The dazomet and the 1,3-dichloropropylene are mixed at the ratio of (1:2)-(2:1) to especially perform action on the Phytoph-thora capsici Leonian and the Meloidogyne. The pesticide composition is not only used for controlling the Phytoph-thora capsici Leonian and the Meloidogyne, but also widely applied to the aspects of controlling the soil-borne diseases (including the meloidogyne) in vegetables, such as hot peppers, gingers, cucumbers and the like, field crops and flowers. The pesticide composition has high application value and obvious economic and social benefits.

The invention discloses a method for efficiently killing pathogenic bacteria in vegetable wrack compost. The method comprises the following steps of: carrying out compost fermentation on vegetable wrack, crushing the vegetable wrack with water content of 80-85%, thus obtaining compost material; regulating carbon nitrogen ratio of the compost material to 25-30, evenly scattering the compost material into dazomet according to addition quantity of 0.15kg / m<3> and quickly mixing well, then, covering the compost material with a plastic film, carrying out sealed fermentation for 10-12 days, lifting up the plastic film and turning, and then, laying aside for 1-2 days. In the method, a chemical fumigant, namely dazomet, is used for processing the vegetable wrack post; in comparison with the existing pathogenic bacteria killing method by steam heating, adding chemical pesticide, and so on, the method provided by the invention is efficient, economic, safe, simple and easy to carry out, thus, a new thought for agricultural residue resource recycling, environment protection and diseases and suppression of insect pests spreading is provided.

A solid body of dazomet for use in internal remedial treatments of wood and methods of applying such solid bodies to wooden structures and manufacturing such solid bodies. The solid bodies can be easily transported and inserted into treatment holes in utility poles, wooden pilings, and other wooden structures, delivering a precise, accurate dose of insecticide and fungicide that combats internal decay in the wood.

Arbuscular mycorrhiza is a mutual symbiont built by a kind of fungi in soil and a host plant root system. Research shows that AM can participate in many physiological and biochemical metabolism processes of plants and have multi-aspect beneficial effects on the plants. Existing AM fungus expanding propagation production has the defects that a soil matrix culture system is mainly adopted, sterilization treatment and high inoculation agent weight are needed, and transportation is inconvenient, so that application and popularization of the arbuscular mycorrhizae are restricted. Therefore, construction of a wild efficient expanding propagation method for the arbuscular mycorrhizae has the important significance. The invention relates to a wild efficient expanding propagation method for arbuscular mycorrhizal fungi. The method comprises the steps that field soil is disinfected with dazomet, corn and sorghum are adopted as host plants, and a soil sample is taken to be detected after cultivation is conducted for 3-6 months under normal management, wherein the density of spores in the soil is higher than 200 / 10 g, and the hyphal length is larger than 150 m / 10 g.

The invention relates to a method for continuously cultivating pseudo-ginseng, and the method comprises the following steps (1) land resumption preparation and soil treatment; (2) pesticides spreading; (3) film covering; (4) film uncovering; (5) seedling emergence testing; (6) fertilizer adding; and (7) sowing or germchit transplanting. After disinfection treatment is performed on soil with 98% dazomet, soil insects, soil-borne pathogenic bacteria and weeds are killed, bacterial manure, a small-molecule organic carbon fertilizer, a microbial agent and organic matter are added, and thus a function of a total nutrition library of soil can be restored. The problem that pseudo-ginseng cannot be continuously cultivated is solved, and at the same time, scientific and reasonable disinfection andfertilization methods are provided; and old land can realize continuous rotation of pseudo-ginseng, and a green development road for old land to realize continuous cropping of pseudo-ginseng is provided. In the later-period growth of pseudo-ginseng, no weeds grow on the soil, fertilization and pesticide use in the later period can be greatly reduced, the pollution of fertilization and pesticide use to the environment is reduced, at the same time, pseudo-ginseng is not prone to contract diseases, and the survival rate of seedlings can be up to 94%.

The invention discloses a composition. The composition comprises following ingredients: 0.01-0.1g of 60% dazomet, 0.5-2g of 96% cartap, 5-15g of 25% 2-cyano-3-phenyl-3-amino ethyl acrylate, and 4,000-8,000g of water. The invention further discloses an application of the composition to the control of the black eye-spot of rice grains, as well as a method for controlling the black eye-spot of rice grains by soaking seeds. According to the invention, a technical measure of carrying out medicament soaking on rice seeds before the seeds are sowed is used for killing and controlling various pathogenic bacteria in the rice seeds, so that the aim of preventing the black eye-spot of rice grains is realized. The control effect of controlling the black eye-spot of rice grains reaches 100%.

The invention relates to a sensor used for highly-sensitive and rapid detection of dithiocarbamate pesticides and preparation and application thereof. According to the principle of the method, characteristic group C=S of a dithiocarbamate pesticide and an indicator rapidly undergo an oxidation-reduction reaction at normal temperature such that the indicator changes in color. Thus, the sensor has high sensitivity in the coexistence of various pesticides. In addition, there is a good linear relation between color change of the indicator and pesticide concentration. By immobilizing the indicator onto a porous material, low-concentration pesticides can continuously react with the indicator by an enrichment mode, thus greatly raising detection sensitivity. The detection limits of two pesticides dazomet and zineb both can meet the international and domestic standard requirements of the maximum residue limit of dithiocarbamate pesticides. The sensor is suitable for spot rapid detection of the pesticides.

The invention relates to a method for measuring the residual quantity of dazomet and metabolite methyl isothiocyanate thereof in plant-derived food, which comprises the following steps: pretreatment: crushing a sample to be measured, adding ethyl acetate, performing vortex oscillation for extraction, and then centrifuging; sucking the supernate, adding ethylenediamine-N-propyl silanized silica gel, graphitized carbon black, C18 and anhydrous magnesium sulfate for purification, carrying out vortex mixing, centrifuging, taking the supernate, and filtering a membrane to obtain an extracting solution; detecting the extracting solution by a gas chromatography-triple quadrupole mass spectrometer, and quantifying by a matrix matching external standard method. According to the method, the linear relation of the target compound in the range of 0.01-0.10 mg / kg is good, and correlation coefficients are all larger than 0.99. The average recovery rate of a blank sample at low, medium and high addition levels is 81.5%-109.4%, the relative standard deviation (n = 6) is 2.8%-9.0%, and the limit of quantitation of the method is 0.01 mg / kg. The method is simple, rapid and sensitive to operate, and can meet the detection requirements of dazomet and metabolite methyl isothiocyanate thereof in plant-derived food.

The invention relates to the field of prevention and control of crop soil-borne diseases, in particular to a method for shortening a rotation cycle of a watermelon and preventing and controlling fusarium wilt of the watermelon. The method comprises the steps: cleaning a plant residue after a spring watermelon is harvested, applying a fertilizer, performing rotary tillage on soil, broadcasting dazomet, performing the rotary tillage on the soil, performing watering, covering a plastic film for 10-15 days, removing the film, performing sun curing, sterilizing the soil, planting a liliaceae crop with a root system capable of secreting an irritant and bacteriocidal substance in the sterilized soil in autumn, and planting the watermelon again to complete the rotation cycle of the watermelon. The method adopts the dazomet to sterilize the soil planted with the spring watermelon in summer, so that fusarium wilt bacteria of the watermelon in the soil can be killed to the greatest extent; the liliaceae crop capable of killing the fusarium wilt bacteria of the watermelon is planted in the autumn, so that the quantity of pathogenic bacteria is further reduced; and in addition, vegetable crops are continued to be planted in a greenhouse in the autumn, so that income is increased, and the whole prevention and control method is simple in process and easy to operate, and meets an actual demand of agricultural production.

The invention discloses an enzyme linked immunosorbent assay kit for detecting coumarin and indandione rodenticide and preparation and application thereof. The kit provided by the invention is composed of an elisa plate, an antibody working solution, an enzyme marker working solution, a washing solution, a sample diluent, a sample extracting solution, a solution containing murich standard substances with different gradient concentrations, a substrate developing solution and a stop solution. The murine decapeptide detection kit provided by the invention can be used for detecting coumarin and indandione rodenticide in food and human serum; in pork, milk and serum, the detection limit of murine, clorfenapyr and diphacinone is 5.0 [mu]g / kg, the detection limit of clorfenapyr is 2.5 [mu]g / kg, the detection limit of bromadiolone, dazomet and warfarin is 10.0 [mu]g / kg, the detection limit of trifluralin is 15.0 [mu]g / kg, and the detection limit of chlorfenapyr is 5.0 [mu]g / kg; the inter-batchvariable coefficient is less than 10%, and the intra-batch variable coefficient is less than 15%. The kit has the advantages of being easy and rapid to operate, high in sensitivity, high in specificity and high in accuracy and has great value in rapid detection of food poisoning.

The invention provides a biological preparation containing a plant source component and a microorganism source component and application of the biological preparation in prevention and treatment of root knot nematode diseases, which belongs to the technical field of biological pesticides. The invention provides a cold-resistant pseudomonas strain SJ5 with the preservation number of CCTCC No.M2021375, and the cold-resistant pseudomonas strain SJ5 has a relatively strong killing effect on nematodes. Meanwhile, the invention further provides a biological preparation containing plant source components and microorganism source components. The biological preparation is prepared from sophora flavescens azadirachtin missible oil, fermentation liquor of a cold-resistant pseudomonas strain SJ5, fermentation liquor of Chryseobacterium mucilaginosus and fermentation liquor of bacillus subtilis. The biological agent is used for preventing and treating plant nematode diseases, the biological prevention effect of chemical agents such as fosthiazate and dazomet can be achieved, plant growth can be effectively promoted, and the biological agent has higher application value.

The invention discloses a management method of chestnut garden soil, and belongs to the technical field of soil management. The management method of the chestnut garden soil comprises the following steps: (1), retting an organic fertilizer: preparing the organic fertilizer from plant debris and retting liquid; (2), stocking earthworms: stocking the earthworms under chestnut trees; and (3), fertilizing for protecting soil: applying a special fertilizer for the chestnut trees, which is prepared from a compound fertilizer, dried pig manure, pseudomonas fluorescens and dazomet. By the management method of the chestnut garden soil, the properties of the chestnut garden soil can be effectively improved and the fertility and the water retention capacity of the soil can be improved.