CN112250508A - Preparation method and application of pesticide-fertilizer granules containing thifluzamide and azoxystrobin - Google Patents
Preparation method and application of pesticide-fertilizer granules containing thifluzamide and azoxystrobin Download PDFInfo
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- CN112250508A CN112250508A CN202011206573.1A CN202011206573A CN112250508A CN 112250508 A CN112250508 A CN 112250508A CN 202011206573 A CN202011206573 A CN 202011206573A CN 112250508 A CN112250508 A CN 112250508A
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- azoxystrobin
- thifluzamide
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
Abstract
The invention is applicable to the technical field of banana planting, and provides a preparation method and application of a pesticide-fertilizer granule containing thifluzamide and azoxystrobin, wherein the preparation method comprises the following steps: preparing thifluzamide, azoxystrobin, fluxapyroxad, bacillus subtilis agent, dispersing agent, thickening agent, safety agent, binder, carrier fertilizer and water; binary compounding of thifluzamide and azoxystrobin to obtain a complex; sequentially adding the complex, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed for 10min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at a low speed for 5min, and then adsorbing to obtain a mixture C; crushing the mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally prepare the pesticide-fertilizer granules, so that the control effect is improved.
Description
Technical Field
The invention belongs to the field of pesticide fertilizers, and particularly relates to a preparation method and application of pesticide fertilizer granules containing thifluzamide and azoxystrobin.
Background
The underground pests have wide harm to hosts, food impurities and serious harm, are main pests in the sowing period and the seedling period of agriculture and forestry, and generally have the harm of reducing the yield of crops by more than 30 percent, and can reach more than 60 percent in serious cases. The common soil insects include mole cricket, grub, wireworm, cutworm, seed fly, Chinese chive maggot, etc. Meanwhile, diseases of crop roots and stems are also serious in recent years, such as potato black nevus, wheat take-all, root rot, banded sclerotial blight, corn stem rot, peanut root rot, rape sclerotinia rot and the like. The infected crops are weakened in the long period of the seedling and die in the serious period, and the diseases of the root and the stem of the crops bring serious consequences to agricultural production. In order to save labor or medicine cost, farmers either spray or drench roots, and are difficult to eliminate pests from the root or radically cure diseases of roots and stems of crops.
The thifluzamide is called thifluzamide, belongs to thiazole amide bactericides, and has strong systemic conductivity and long lasting effect. Thifluzamide has activity on pathogenic fungi of rhizoctonia, puccinia, smut, tilletia, revolutionary and tuberculosis, and especially has special effect on diseases caused by basidiomycete fungi such as banded sclerotial blight and damping off.
Azoxystrobin is a strobilurin bactericidal pesticide, is efficient and broad-spectrum, and has good activity on almost all fungal kingdoms (Ascomycotina, Basidiomycotina, flagellata and Deuteromycotina) diseases such as powdery mildew, rust disease, glume blight, net blotch, downy mildew, rice blast and the like. Can be used for stem leaf spraying, seed treatment, and soil treatment, and is mainly used for grain, rice, peanut, grape, potato, fruit tree, vegetable, coffee, lawn, etc.
The bacillus subtilis is widely distributed in soil and putrefactive organic matters, can improve the soil aggregate structure, improve the soil, relieve continuous cropping obstacles, inhibit the propagation of pathogenic bacteria in the soil and the invasion to the roots of plants, reduce soil-borne diseases of the plants, prevent the outbreak of various plant diseases and insect pests, and has obvious inhibiting effect on pathogenic bacteria or conditional pathogenic bacteria infected endogenously.
Fluxapyroxad is used for preventing and treating broad-spectrum fungal diseases, belongs to carboxamide chemicals, and has an effect of inhibiting succinate dehydrogenase in a compound II of a mitochondrial respiratory chain, so that spore germination, germ tube and mycelium growth of target fungi are inhibited.
In the traditional agricultural production technology, the application of the fertilizer and the bactericide is separated, and the practice of using the bactericide and the fertilizer for two times or more is needed, so that the labor intensity and the labor times of farmers are increased, and the agricultural development is not facilitated. The pesticide fertilizer granules can be applied once to complete two procedures of fertilization and sterilization simultaneously, so that the condition that the pesticide application and the fertilization cannot be considered in the past is avoided, the time and the labor are saved, and the production efficiency is improved.
Disclosure of Invention
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention is realized in such a way that the preparation method of the pesticide-fertilizer granules containing thifluzamide and azoxystrobin comprises the following steps:
1) preparing the following raw materials in parts by weight: 6-10 parts of thifluzamide, 2-5 parts of azoxystrobin, 2-6 parts of fluxapyroxad, 2-6 parts of bacillus subtilis, 1-2 parts of a dispersing agent, 1-2 parts of a thickening agent, 1-3 parts of a safener, 3-5 parts of a binder, 1000 parts of a carrier fertilizer and 200 parts of 100-fold water;
2) binary compounding of thifluzamide and azoxystrobin to obtain a complex A;
3) sequentially adding the complex A, fluxapyroxad, a dispersing agent, a thickening agent, a safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1200-1600 r/min for 10-15 min to obtain a mixture B;
4) adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed (220-320) r/min for 5-10 min, and then adsorbing to obtain a mixture C;
5) crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D;
6) and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
As a further scheme of the invention: in the step 1), the dispersing agent is selected from one or more of naphthalene sulfonic acid formaldehyde polymer sodium salt, sodium dodecyl sulfate and polycarboxylate.
As a further scheme of the invention: in the step 1), the thickening agent is selected from one or more of carboxymethyl cellulose, propylene glycol alginate, casein and sodium polyacrylate.
As a further scheme of the invention: in the step 1), the safener is one or more selected from dichlormid, fenclorim and fenclorim.
As a further scheme of the invention: in the step 1), the binder is selected from one or more of polyvinylpyrrolidone, sodium carboxymethyl cellulose, croscarmellose sodium and chitosan.
As a further scheme of the invention: in the step 1), the carrier fertilizer is a nitrogen-phosphorus-potassium element fertilizer, the nitrogen element in the carrier fertilizer is selected from one or more of urea, ammonium chloride and ammonium sulfate , the phosphorus element is selected from one or more of monoammonium phosphate, diammonium phosphate and calcium-magnesium-phosphorus fertilizer, and the potassium element is selected from one or more of potassium chloride, potassium sulfate and potassium nitrate.
As a further scheme of the invention: the step 1) comprises the following raw materials in parts by weight: 7-9 parts of thifluzamide, 3-4 parts of azoxystrobin, 3-5 parts of fluxapyroxad, 3-5 parts of bacillus subtilis, 1-2 parts of a dispersing agent, 1-2 parts of a thickening agent, 1-2 parts of a safener, 3-4 parts of a binder, 850-containing carrier fertilizer 950 parts and 120-containing water 180 parts.
As a further scheme of the invention: the step 1) comprises the following raw materials in parts by weight: 8 parts of thifluzamide, 3 parts of azoxystrobin, 4 parts of fluxapyroxad, 4 parts of bacillus subtilis, 2 parts of a dispersing agent, 2 parts of a thickening agent, 2 parts of a safety agent, 3 parts of a binder, 900 parts of a carrier fertilizer and 150 parts of water.
Application of a preparation method of pesticide-fertilizer granules containing thifluzamide and azoxystrobin in preventing and controlling crops and vegetables.
According to the preparation method of the thifluzamide and azoxystrobin-containing pesticide-fertilizer granules, provided by the embodiment of the invention, by compounding thifluzamide and azoxystrobin, pests can be effectively prevented and treated and diseases of roots and stems of crops can be radically treated, and meanwhile, fluxapyroxad and bacillus subtilis are added into a complex of thifluzamide and azoxystrobin, so that the prevention effect can be further improved, a synergistic effect is achieved, the drug resistance is overcome and delayed, the prevention spectrum is expanded, and the prevention effect is improved; meanwhile, the active ingredients of the pesticide and the carrier fertilizer are scientifically combined, so that the pesticide fertilizer granules have the characteristics of the pesticide and the fertilizer, can achieve two purposes of preventing and treating fungal diseases and topdressing by one-time application, are convenient to apply, improve the production efficiency and reduce the labor cost. .
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The thifluzamide is called thifluzamide, belongs to thiazole amide bactericides, and has strong systemic conductivity and long lasting effect. Thifluzamide has activity on pathogenic fungi of rhizoctonia, puccinia, smut, tilletia, revolutionary and tuberculosis, and especially has special effect on diseases caused by basidiomycete fungi such as banded sclerotial blight and damping off.
Azoxystrobin is a strobilurin bactericidal pesticide, is efficient and broad-spectrum, and has good activity on almost all fungal kingdoms (Ascomycotina, Basidiomycotina, flagellata and Deuteromycotina) diseases such as powdery mildew, rust disease, glume blight, net blotch, downy mildew, rice blast and the like. Can be used for stem leaf spraying, seed treatment, and soil treatment, and is mainly used for grain, rice, peanut, grape, potato, fruit tree, vegetable, coffee, lawn, etc.
The bacillus subtilis is widely distributed in soil and putrefactive organic matters, can improve the soil aggregate structure, improve the soil, relieve continuous cropping obstacles, inhibit the propagation of pathogenic bacteria in the soil and the invasion to the roots of plants, reduce soil-borne diseases of the plants, prevent the outbreak of various plant diseases and insect pests, and has obvious inhibiting effect on pathogenic bacteria or conditional pathogenic bacteria infected endogenously.
Fluxapyroxad is used for preventing and treating broad-spectrum fungal diseases, belongs to carboxamide chemicals, and has an effect of inhibiting succinate dehydrogenase in a compound II of a mitochondrial respiratory chain, so that spore germination, germ tube and mycelium growth of target fungi are inhibited.
In the embodiment of the invention, the preparation method of the pesticide-fertilizer granules containing thifluzamide and azoxystrobin comprises the following steps:
1) preparing the following raw materials in parts by weight: 6-10 parts of thifluzamide, 2-5 parts of azoxystrobin, 2-6 parts of fluxapyroxad, 2-6 parts of bacillus subtilis, 1-2 parts of a dispersing agent, 1-2 parts of a thickening agent, 1-3 parts of a safener, 3-5 parts of a binder, 1000 parts of a carrier fertilizer and 200 parts of 100-fold water;
2) binary compounding of thifluzamide and azoxystrobin to obtain a complex A;
3) sequentially adding the complex A, fluxapyroxad, a dispersing agent, a thickening agent, a safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1200-1600 r/min for 10-15 min to obtain a mixture B;
4) adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed (220-320) r/min for 5-10 min, and then adsorbing to obtain a mixture C;
5) crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D;
6) and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
In the embodiment of the invention: in the step 1), the dispersing agent is selected from one or more of naphthalene sulfonic acid formaldehyde polymer sodium salt, sodium dodecyl sulfate and polycarboxylate.
In the embodiment of the invention: in the step 1), the thickening agent is selected from one or more of carboxymethyl cellulose, propylene glycol alginate, casein and sodium polyacrylate.
In the embodiment of the invention: in the step 1), the safener is one or more selected from dichlormid, fenclorim and fenclorim.
In the embodiment of the invention: in the step 1), the binder is selected from one or more of polyvinylpyrrolidone, sodium carboxymethyl cellulose, croscarmellose sodium and chitosan.
In the embodiment of the invention: in the step 1), the carrier fertilizer is a nitrogen-phosphorus-potassium element fertilizer, the nitrogen element in the carrier fertilizer is selected from one or more of urea, ammonium chloride and ammonium sulfate , the phosphorus element is selected from one or more of monoammonium phosphate, diammonium phosphate and calcium-magnesium-phosphorus fertilizer, and the potassium element is selected from one or more of potassium chloride, potassium sulfate and potassium nitrate.
In the embodiment of the invention: the step 1) comprises the following raw materials in parts by weight: 7-9 parts of thifluzamide, 3-4 parts of azoxystrobin, 3-5 parts of fluxapyroxad, 3-5 parts of bacillus subtilis, 1-2 parts of a dispersing agent, 1-2 parts of a thickening agent, 1-2 parts of a safener, 3-4 parts of a binder, 850-containing carrier fertilizer 950 parts and 120-containing water 180 parts.
In the embodiment of the invention: the step 1) comprises the following raw materials in parts by weight: 8 parts of thifluzamide, 3 parts of azoxystrobin, 4 parts of fluxapyroxad, 4 parts of bacillus subtilis, 2 parts of a dispersing agent, 2 parts of a thickening agent, 2 parts of a safety agent, 3 parts of a binder, 900 parts of a carrier fertilizer and 150 parts of water.
The invention also provides application of the thifluzamide and azoxystrobin-containing pesticide fertilizer granules in preventing and controlling crops and vegetables.
The technical effects of the preparation method and application of the granular pesticide fertilizer containing thifluzamide and azoxystrobin of the present invention are further described below with reference to specific examples, but the specific implementation methods mentioned in these examples are only illustrative and explanatory of the technical scheme of the present invention, and do not limit the implementation scope of the present invention, and all modifications and substitutions based on the above principles should be within the protection scope of the present invention.
Example 1
Preparing the following raw materials in parts by weight: 6 parts of thifluzamide, 2 parts of azoxystrobin, 2 parts of fluxapyroxad, 2 parts of bacillus subtilis, 1 part of dispersant, 1 part of thickener, 1 part of safener, 3 parts of binder, 1000 parts of carrier fertilizer and 200 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1200r/min for 10min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 220r/min for 5min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Example 2
Preparing the following raw materials in parts by weight: 10 parts of thifluzamide, 5 parts of azoxystrobin, 6 parts of fluxapyroxad, 6 parts of bacillus subtilis, 2 parts of a dispersing agent, 2 parts of a thickening agent, 3 parts of a safety agent, 5 parts of a binder, 1000 parts of a carrier fertilizer and 200 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1600r/min for 15min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 320r/min for 10min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Example 3
Preparing the following raw materials in parts by weight: 7 parts of thifluzamide, 3 parts of azoxystrobin, 3 parts of fluxapyroxad, 4 parts of bacillus subtilis, 1 part of dispersant, 2 parts of thickener, 1 part of safener, 34 parts of binder, 800 parts of carrier fertilizer and 120 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1300r/min for 11min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 250r/min for 6min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Example 4
Preparing the following raw materials in parts by weight: 8 parts of thifluzamide, 4 parts of azoxystrobin, 5 parts of fluxapyroxad, 3 parts of bacillus subtilis, 2 parts of a dispersing agent, 2 parts of a thickening agent, 3 parts of a safety agent, 5 parts of a binder, 900 parts of a carrier fertilizer and 180 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1500r/min for 15min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 300r/min for 10min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Example 5
Preparing the following raw materials in parts by weight: 7 parts of thifluzamide, 3 parts of azoxystrobin, 3 parts of fluxapyroxad, 3 parts of bacillus subtilis, 3 parts of a dispersing agent, 1 part of a thickening agent, 1 part of a safety agent, 3 parts of a binder, 850 parts of a carrier fertilizer and 120 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1400r/min for 12min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 270r/min for 8min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Example 6
Preparing the following raw materials in parts by weight: 9 parts of thifluzamide, 4 parts of azoxystrobin, 5 parts of fluxapyroxad, 5 parts of bacillus subtilis, 2 parts of a dispersing agent, 2 parts of a thickening agent, 2 parts of a safety agent, 4 parts of a binder, 950 parts of a carrier fertilizer and 180 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1500r/min for 14min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 300r/min for 9min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Example 7
Preparing the following raw materials in parts by weight: 8 parts of thifluzamide, 3 parts of azoxystrobin, 4 parts of fluxapyroxad, 4 parts of bacillus subtilis, 2 parts of a dispersing agent, 2 parts of a thickening agent, 2 parts of a safety agent, 3 parts of a binder, 900 parts of a carrier fertilizer and 150 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1400r/min for 13min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 260r/min for 8min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Comparative example 1
Preparing the following raw materials in parts by weight: 8 parts of thifluzamide, 3 parts of azoxystrobin, 2 parts of a dispersing agent, 2 parts of a thickening agent, 2 parts of a safener, 3 parts of a binder, 900 parts of a carrier fertilizer and 150 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, the dispersant, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1400r/min for 13min to obtain a mixture B; adding a binder, stirring and shearing at the rotating speed of 260r/min for 8min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the drug fertilizer granules
Comparative example 2
Preparing the following raw materials in parts by weight: 8 parts of thifluzamide, 3 parts of azoxystrobin, 4 parts of bacillus subtilis agent, 2 parts of dispersant, 2 parts of thickener, 2 parts of safener, 3 parts of binder, 900 parts of carrier fertilizer and 150 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, the dispersant, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1400r/min for 13min to obtain a mixture B; adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed of 260r/min for 8min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Comparative example 3
Preparing the following raw materials in parts by weight: 8 parts of thifluzamide, 3 parts of azoxystrobin, 4 parts of fluxapyroxad, 2 parts of a dispersing agent, 2 parts of a thickening agent, 2 parts of a safety agent, 3 parts of a binder, 900 parts of a carrier fertilizer and 150 parts of water; binary compounding of thifluzamide and azoxystrobin to obtain a complex A; sequentially adding the complex A, fluxapyroxad, the dispersing agent, the thickening agent, the safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1400r/min for 13min to obtain a mixture B; adding a binder into the mixture B, stirring and shearing at the rotating speed of 260r/min for 8min, and then adsorbing to obtain a mixture C; crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D; and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
Comparative example 4
For the blank group, a commercial fertilizer was used.
Experimental example 1
Selecting five plots with close conditions, respectively naming the plots as a first plot, a second plot, a third plot, a fourth plot and a fifth plot, planting wheat, applying 5 kg/mu of thifluzamide and azoxystrobin-containing pesticide-fertilizer granules prepared in example 7 to the first plot in a sowing period, applying 5 kg/mu of pesticide-fertilizer granules prepared in comparative examples 1-3 to the second plot, the third plot and the fourth plot respectively, applying 5 kg/mu of pesticide-fertilizer granules prepared in comparative examples 4 to the fifth plot by using a commercially available fertilizer with 5 kg/mu of pesticide-fertilizer, investigating the control effect on plant diseases and insect pests, investigating and counting the yield during harvesting, and carrying out data statistics, wherein specific results are shown in table 1.
TABLE 1
As can be seen from table 1, the first plot using the thifluzamide and azoxystrobin-containing insecticide-fertilizer granules prepared in example 7 at the sowing time has the control effects on root rot, sheath blight and soil insects of more than 95%, the yield is about 500 kg/mu, and compared with the fifth plot of the blank group, the first plot has extremely high control effects and increases the yield by about 10%; the control effect of the second plot is about 80% and the yield is about 443 kg/mu when the pesticide fertilizer granules of the comparative example 1 are applied, and compared with the fifth plot of a blank group, the second plot has higher control effect and certain yield increase; compared with the second plot, the third plot and the fourth plot applying the pesticide-fertilizer granules in the comparative examples 2 and 3 have certain progress in control effect and yield increase, but compared with the example 7, the control effect and yield increase are low, so that the compound of thifluzamide and azoxystrobin is applied to crops, pests can be effectively controlled and diseases of crop roots can be radically controlled, and meanwhile, fluxapyroxad and bacillus subtilis are added into the compound ligand of thifluzamide and azoxystrobin, so that the control effect can be further improved, the synergistic effect is achieved, the drug resistance is overcome and delayed, the control spectrum is expanded, and the control effect is improved; meanwhile, the active ingredients of the pesticide and the carrier fertilizer are scientifically combined, so that the pesticide fertilizer granules have the characteristics of the pesticide and the fertilizer, can achieve two purposes of preventing and treating fungal diseases and topdressing by one-time application, are convenient to apply, improve the production efficiency and reduce the labor cost.
Experimental example 2
Five plots with similar potato black nevus disease conditions are selected and named as a first plot, a second plot, a third plot, a fourth plot and a fifth plot respectively, at the early stage of the disease, the thifluzamide and azoxystrobin-containing pesticide-fertilizer granules prepared in example 7 are applied to the first plot, the dosage is 5 kg/mu, the pesticide-fertilizer granules prepared in comparative examples 1-3 are applied to the second plot, the third plot and the fourth plot respectively, the dosage is 5 kg/mu, comparative example 4 is applied to the fifth plot by using a commercially available fertilizer, the dosage is 5 kg/mu, the second application is performed 10 days after the first application, the third application is performed 10 days after the second application, the disease index of potatoes is subjected to data statistics, and specific results are shown in table 1.
TABLE 2
Wherein, the grading standard of the severity of the disease is as follows:
level 0: no disease spots;
level 1: the lesion area accounts for less than 2% of the whole potato area;
and 2, stage: the lesion area accounts for 3% -8% of the whole potato area;
and 3, level: the lesion area accounts for 9% -15% of the whole potato area;
4, level: the lesion area accounts for 16% -25% of the whole potato area;
and 5, stage: the lesion area accounts for more than 25% of the whole potato area.
Disease index ═ Σ (number of diseased plants at each stage × relative stage value)/total number of plants;
the preventing and treating effect (%) (disease index before application-disease index after fourth application)/disease index before application.
As can be seen from Table 2, after the thifluzamide and the azoxystrobin are compounded, the compound is applied to the potatoes with the black nevus, the black nevus can be effectively prevented and treated, and meanwhile, the fluxapyroxad and the bacillus subtilis agent are added into the compound of the thifluzamide and the azoxystrobin, so that the prevention and treatment effect can be further improved, and the synergistic effect is achieved.
In conclusion, the invention can effectively prevent and control pests and radically treat diseases of roots and stems of crops by compounding thifluzamide and azoxystrobin, and meanwhile, the fluxapyroxad and the bacillus subtilis agent are added into the compound of thifluzamide and azoxystrobin, so that the prevention and control effect can be further improved, the synergistic effect is achieved, the drug resistance is overcome and delayed, the prevention and control spectrum is expanded, and the prevention and control effect is improved; meanwhile, the active ingredients of the pesticide and the carrier fertilizer are scientifically combined, so that the pesticide fertilizer granules have the characteristics of the pesticide and the fertilizer, can achieve two purposes of preventing and treating fungal diseases and topdressing by one-time application, are convenient to apply, improve the production efficiency and reduce the labor cost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A preparation method of a pesticide-fertilizer granule containing thifluzamide and azoxystrobin is characterized by comprising the following steps:
preparing the following raw materials in parts by weight: 6-10 parts of thifluzamide, 2-5 parts of azoxystrobin, 2-6 parts of fluxapyroxad, 2-6 parts of bacillus subtilis, 1-2 parts of a dispersing agent, 1-2 parts of a thickening agent, 1-3 parts of a safener, 3-5 parts of a binder, 1000 parts of a carrier fertilizer and 200 parts of 100-fold water;
binary compounding of thifluzamide and azoxystrobin to obtain a complex A;
3) sequentially adding the complex A, fluxapyroxad, a dispersing agent, a thickening agent, a safety agent and water into a high-pressure shearing kettle, and stirring and shearing at a high speed of 1200-1600 r/min for 10-15 min to obtain a mixture B;
4) adding the bacillus subtilis agent and the binder into the mixture B, stirring and shearing at the rotating speed (220-320) r/min for 5-10 min, and then adsorbing to obtain a mixture C;
5) crushing the adsorbed mixture C to 50-100 meshes by using a crusher to obtain powder D;
6) and (3) crushing the carrier fertilizer to 50-100 meshes to obtain powder E, fully mixing the powder D and the powder E, and granulating to finally obtain the pesticide fertilizer granules.
2. The preparation method of the thifluzamide and azoxystrobin-containing pesticide-fertilizer granules according to claim 1, wherein in the step 1), the dispersing agent is selected from one or more of naphthalene sulfonic acid formaldehyde polymer sodium salt, sodium dodecyl sulfate and polycarboxylate.
3. The preparation method of the thifluzamide and azoxystrobin-containing pesticide-fertilizer granules according to claim 1, wherein in the step 1), the thickener is one or more selected from carboxymethyl cellulose, propylene glycol alginate, casein and sodium polyacrylate.
4. The preparation method of the pesticide-fertilizer granules containing thifluzamide and azoxystrobin according to claim 1, wherein in the step 1), the safener is one or more selected from the group consisting of dichlormid, fenclorim and fenclorim.
5. The preparation method of the insecticide-fertilizer granules containing thifluzamide and azoxystrobin according to claim 1, wherein in step 1), the binder is selected from one or more of polyvinylpyrrolidone, sodium carboxymethylcellulose, croscarmellose sodium and chitosan.
6. The method for preparing the thifluzamide and azoxystrobin-containing pesticide fertilizer granules according to claim 2, wherein in the step 1), the carrier fertilizer is a nitrogen-phosphorus-potassium fertilizer, the nitrogen element in the carrier fertilizer is one or more of urea, ammonium chloride and ammonium sulfate , the phosphorus element is one or more of monoammonium phosphate, diammonium phosphate and calcium-magnesium-phosphate fertilizer, and the potassium element is one or more of potassium chloride, potassium sulfate and potassium nitrate.
7. The preparation method of the pesticide-fertilizer granules containing thifluzamide and azoxystrobin according to claim 1, wherein the step 1) comprises the following raw materials in parts by weight: 7-9 parts of thifluzamide, 3-4 parts of azoxystrobin, 3-5 parts of fluxapyroxad, 3-5 parts of bacillus subtilis, 1-2 parts of a dispersing agent, 1-2 parts of a thickening agent, 1-2 parts of a safener, 3-4 parts of a binder, 850-containing carrier fertilizer 950 parts and 120-containing water 180 parts.
8. The preparation method of the pesticide-fertilizer granules containing thifluzamide and azoxystrobin according to claim 1, wherein the step 1) comprises the following raw materials in parts by weight: 8 parts of thifluzamide, 3 parts of azoxystrobin, 4 parts of fluxapyroxad, 4 parts of bacillus subtilis, 2 parts of a dispersing agent, 2 parts of a thickening agent, 2 parts of a safety agent, 3 parts of a binder, 900 parts of a carrier fertilizer and 150 parts of water.
9. The application of the thifluzamide and azoxystrobin-containing pesticide-fertilizer granules prepared by the preparation method according to any one of claims 1-8 in controlling crop and vegetable diseases.
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| CN115886018A (en) * | 2022-08-10 | 2023-04-04 | 济南约克农化有限公司 | Thifluzamide azoxystrobin granules and preparation method thereof |
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