CN113180052A - Rice seed treatment composition and application thereof - Google Patents
Rice seed treatment composition and application thereof Download PDFInfo
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- CN113180052A CN113180052A CN202110500468.7A CN202110500468A CN113180052A CN 113180052 A CN113180052 A CN 113180052A CN 202110500468 A CN202110500468 A CN 202110500468A CN 113180052 A CN113180052 A CN 113180052A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/08—Immunising seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/02—Acyclic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
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Abstract
The invention provides a rice seed treatment composition, which mainly comprises a component A of fluoxastrobin and isotianil, and a component B of carbosulfan. The mass ratio of the component A to the component B is 3: 2-1: 4; the mass ratio of fluoxastrobin to isotianil in the component A is 1: 8-1: 100; the seed coating agent can be prepared into various application formulations suitable for agricultural production, and the better formulation is a seed treatment suspending agent. The invention is used for the seed dressing and coating treatment of rice seeds, can improve the germination rate of the rice seeds, can effectively control the occurrence of diseases such as bakanae disease, rice blast and the like of the rice, can prevent and treat rice thrips and drive birds, and increases the yield of the rice.
Description
Technical Field
The invention belongs to the technical field of agricultural compositions, relates to a rice seed treatment composition, and particularly relates to a rice seed treatment composition and application thereof.
Background
The damage of plant diseases and insect pests to the growth of rice is always an important problem which is very concerned by farmers and is sought to be solved by agricultural experts. Although the traditional seed treatment methods such as medicament seed dressing, medicament seed soaking and the like have certain functions, the medicament has poor adhesion on seeds, the seeds are easy to fall off and run off when being transported or sowed in water, the duration is short, the treatment such as seed disinfection and the like needs to be carried out in a short time before sowing, and the industrialization of seed treatment is difficult to realize; the pesticide is directly sprayed on the rice, so that the pesticide has large dosage, high cost, labor and time waste and serious environmental pollution.
The seed coating can coat active ingredients such as pesticide, growth regulator, micro-fertilizer and the like in a coating film formed on the surface of the seed, and the active ingredients are slowly released in the seed germination and growth processes, so that the crop diseases and insect pests are effectively prevented and controlled, the growth is promoted and controlled, the seeds and the pesticide are saved, the labor and the time are saved, the resources are saved, the environmental pollution is reduced, and the method is an important way for standardizing the seed quality, processing mechanization, accurately quantizing the seeding, lightening the cultivation and increasing the income and saving the expenditure. Since the birth of the 20 th century and the 30 th era, the seed coating agent is highly valued by many countries, and at present, the seed coating agent has been developed and applied by a plurality of countries, so that better economic benefit and ecological benefit are obtained. Many countries have promulgated relevant regulations that specify that crop seeds must be coated before they can be sold and used.
Fluoxastrobin, through electron transfer between cytochrome b and C1 to inhibit the respiration of mitochondria, when used as a cereal crop seed treatment agent, the seed treatment concentration is 5-l 0g (a.i.)/l00kg, which has excellent control effect on seed-borne and soil-borne diseases such as snow mold, stinking smut, hard smut and the like, and can control both loose smut and leaf streak disease.
Isotianil belongs to isothiazole formamide bactericides, has strong plant induction activity, can be applied prophylactically or in early onset of disease, can activate the defensive resistance reaction of plants, namely system induction resistance, improve the activity of various enzymes of the plants, enhance the capability of resisting pathogen infection of plant cells, increase the accumulation of disease course related protein, increase the secretion of phytoalexin and the like, and thus leads crops to have broad-spectrum self-protection effect on various fungi, bacteria and viruses. Bayer company indicates that isotianil is the first example of an active ingredient with low usage amount and induced resistance effect, and the environment-friendly product is very suitable for the use in the growth process of rice and has certain insecticidal activity.
Carbosulfan is a highly effective broad-spectrum insecticide, acaricide and nematicide developed by FMC company in 1980, and is a low-toxicity derivative of carbosulfan. It has systemic, contact and stomach poisoning effects, and can be used for preventing and treating aphid, wireworm, mite, flea beetle, potato beetle, fruit tree leaf roller moth, rice gall midge, codling moth, tea leafhopper, oriental fruit moth, scale insect, rust mite, rice planthopper, cabbage caterpillar, etc., and when it is used as soil treatment agent, it can be used for preventing and treating soil insects and leaf surface insects.
The rice is staple food for more than half of the population in the world at present, and three meals a day, which exceed six populations, in China are mainly rice, so that whether the rice can be stably increased or not plays a vital role in food safety in China and even the world. Diseases of rice in the growth period are one of main threats in the safety production of the rice, and the bakanae disease and the rice blast of the rice are two main diseases of the rice. In normal years, 5 to 6 times of spraying control is needed to reduce the loss of rice diseases, and in the years of the large occurrence of the diseases, the application frequency is more as high as 8 to 10 times. The traditional stem leaf spray control method has the advantages of more pesticide application times, low medicament utilization rate, easy generation of pesticide resistance of rice diseases, environmental pollution and further initiation of a series of other social problems.
Therefore, how to reduce the application amount of the pesticide and the use times is a problem to be solved urgently in the current rice production. Under the background, the rice seed treatment technology is the current inevitable choice as a simple and easy operation scheme, the technology not only can reduce the using amount of pesticides, but also can reduce the using times of the pesticides in the growing period of crops, and the effect of achieving twice the result with half the effort on the prevention and treatment of main diseases of rice can be achieved.
Patent CN201810156334.6 discloses a seed coating composition containing prothioconazole, pyraclostrobin and dinotefuran, wherein the active ingredients and the contents of the composition are 1-10% of prothioconazole, 1-10% of pyraclostrobin and 1-30% of dinotefuran respectively in percentage by mass. The pyraclostrobin belongs to strobilurin fungicides, is a broad-spectrum systemic fungicide which has high efficiency, low toxicity, low residue, long duration, diversified application modes and excellent protection and treatment effects, and can be used for stem and leaf treatment, seed treatment and soil treatment. The effective components of the composition comprise prothioconazole, pyraclostrobin and dinotefuran, and the occurrence of plant diseases and insect pests of crops in the growth process can be well reduced, but no document is provided for a seed coating agent with the ternary combination of fluoxastrobin, isotianil and carbosulfan, so that the using effect of the seed coating agent with the ternary combination of fluoxastrobin, isotianil and carbosulfan is difficult to know by a person skilled in the art.
Disclosure of Invention
The invention aims to provide a rice seed treatment composition and a rice seed treatment agent prepared from the same, which are used for seed dressing and coating treatment of rice seeds, can obviously improve the germination rate of the rice seeds, can effectively control the diseases such as bakanae disease, rice blast and the like, and simultaneously have the beneficial effects of repelling birds and increasing the yield of rice.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the effective components of the rice seed treatment composition comprise a component A with a bactericidal effect and a component B with an insecticidal effect, wherein the component A is a compound of fluoxastrobin and isotianil, and the component B is carbosulfan.
Further, the mass ratio of the component A to the component B is 3: 2-1: 4.
Further, the mass ratio of fluoxastrobin to isotianil in the component A is 1: 8-1: 100.
Further, the composition also comprises triacontanol, cinnamaldehyde and other auxiliary agents, and the content of the triacontanol and the cinnamaldehyde in the seed treatment agent is 5% in mass fraction. Triacontanol is a high-efficiency and rapid plant growth promoter, and has a remarkable promoting effect on plant growth at a very low concentration. Triacontanol is commonly applied to the agricultural field by foliar spraying, and the triacontanol is rarely used as a seed treatment composition or an assistant agent. The verification of the invention proves that the addition of triacontanol with the mass ratio of 5 percent into the rice seed treatment composition can obviously improve the germination rate of rice seeds and enhance the germination vigor. Cinnamaldehyde is an aldehyde organic compound, has strong cinnamon oil and cinnamon oil fragrance, and has strong durability of fragrance. The verification of the invention proves that the cinnamic aldehyde is used for the rice seed treatment composition and the rice seed treatment agent, so that the rice seeds are endowed with specific smell, and the cinnamic aldehyde has good evasion effect on birds, thereby effectively solving the practical problem of sparse field rice seedlings caused by the birds eating the rice seeds.
It is easily known to those skilled in the art that the rice seed treatment composition and the rice seed treatment agent (pesticide) can be prepared into a preparation formulation convenient for application according to the use requirement in order to fully exert the drug effect of the active components. It is necessary for those skilled in the art to use various adjuvants besides the active ingredient or active ingredient, and various formulation auxiliary ingredients (adjuvants) can be used according to the needs. The auxiliary component can be one or more of a dispersing medium, a dispersing agent, an emulsifying agent, a wetting agent, a thickening agent, a defoaming agent, an antifreezing agent, a disintegrating agent, a binder, a filler, a carrier and the like. The auxiliary agents of the invention include but are not limited to wetting and dispersing agents, film forming agents, thickening agents, coloring agents, preservatives, auxiliary components which are allowed to be used in pesticides such as deionized water and the like, and are all commonly used or allowed to be used in pesticide preparations.
The rice seed treatment composition and the rice seed treatment agent can be prepared into various application formulations suitable for agricultural production, and a better formulation is a seed treatment suspending agent.
Further preferably, the effective components A and B are respectively prepared into microcapsules for use, or the mixture of the effective components A and B in mass ratio is prepared into microcapsules for use. With respect to the preparation of microcapsules of the above-mentioned components, one of ordinary skill in the art can refer to the prior art.
Furthermore, the invention also provides a rice seed treating agent which is prepared by adopting the rice seed treating composition.
As described above, preferably, the formulation of the rice seed treatment agent is a suspending agent. Further preferably, the rice seed treatment agent is a microcapsule suspending agent, the effective components A and B are respectively prepared into microcapsules for use, or the mixture of the effective components A and B according to the mass ratio is prepared into microcapsules for use.
The invention also further claims the application of the rice seed treatment composition or the rice seed treatment agent in rice seed treatment.
Preferably, the rice seed treatment composition, or the rice seed treatment agent, is used for pelleting rice seeds.
Preferably, the rice seed treatment composition or the rice seed treatment agent is used for preventing and treating rice bakanae disease and rice blast.
Preferably, the rice seed treatment composition or the rice seed treatment agent is used for improving the yield of rice.
In addition, the rice seed treatment composition and the rice seed treatment agent provided by the invention can be used for pelleting processing of seeds, and the specific steps are as follows:
(1) screening the seeds by using a vibrating screen and air blowing equipment, and removing impurities such as shriveled grains, stones and the like in the seeds;
(2) coating the selected seeds by using a roller granulator or a gravity-free mixer, wherein the seed coating agent is the rice suspension seed coating agent provided by the invention;
(3) transferring the coated rice seeds to a disc granulator, adding a seed breathing auxiliary agent, performing rolling granulation, sieving, recycling the fine auxiliary agent, and crushing and recycling the agglomerates;
(4) continuously returning the material selected in the step (3) to a disc granulator or a roller granulator, adding a shaping auxiliary material and a binder for rotary granulation, and discharging and screening after pelleting and forming;
(5) introducing hot air into the roller, controlling the temperature at 40-50 ℃, and drying for 10-15 minutes to control the whole moisture of the seeds to be below 5%;
(6) and (4) cooling the dried seeds, packaging the seeds by using a breathable seed bag, and storing the seeds in a cool and dry place.
Further, in the step (3), the seed respiration auxiliary agent is one or two of calcium peroxide and strong chlorine, and the using amount of the seed respiration auxiliary agent is 30% of the weight of the seeds.
Further, the shaping auxiliary material in step (4) comprises diatomite, talcum powder, bentonite and the like.
Further, the binder in the step (4) is 10% polyvinyl alcohol solution, 10% polyacrylic alcohol solution, paraffin oil.
Compared with the prior art, the rice seed treatment composition and the application thereof have the following beneficial effects or advantages: after the rice seeds are treated by seed dressing and coating by the seed coating agent provided by the invention, the germination rate of the rice seeds can be obviously improved, the diseases such as rice bakanae disease, rice blast and the like can be effectively controlled, rice thrips and bird repellence can be prevented, and the rice yield is increased; meanwhile, the using amount and the using times of pesticides are reduced, the pollution to the environment and the pesticide residue on agricultural products are reduced, and the field labor cost is effectively saved.
Detailed Description
For better understanding of the present invention, the technical solution of the present invention will be further described below by referring to specific indoor bioassay and field test examples, but the present invention is not limited to the following examples.
Example 1
The embodiment provides application of a rice seed treatment composition in an indoor seed germination bioactivity determination experiment, and selects a conventional rice variety named Huanghuazhan as a test object, and the specific implementation method is as follows.
The composition of fluoxastrobin, isotianil and carbosulfan is used as a mixed treatment agent, wherein the specific compounding ratio of the components is shown in table 1 in percentage by mass. And respectively taking single agents of fluoxastrobin, isotianil and carbosulfan as comparison treatment agents, and setting blank comparison. In order to relatively fully exert the test effect of the medicament, the mixed treatment medicament and the contrast treatment medicament are added with the same auxiliary agents, and the auxiliary agents are calculated by the mass percentage: 5% of triacontanol, 5% of cinnamaldehyde, 5% of fatty alcohol-polyoxyethylene ether, 5% of sodium carboxymethylcellulose, 1% of xanthan gum, 2% of aqueous rose bengal, 2% of ethylene glycol, 0.5% of benzaldehyde and the balance of deionized water to 100%. The mixed treatment medicament and the control treatment medicament are provided with composition medicament dosage gradients of 800g/100kg of seeds, 1000g/100kg of seeds and 1200g/100kg of seeds.
Soaking rice seeds for two days and two nights, changing water once in the morning and at night every day, standing for 12h, draining, carrying out seed dressing and coating treatment by using various medicaments, putting 100 seeds in a culture dish paved with absorbent paper, breaking breasts at 30-35 ℃, exposing white, placing at 25-30 ℃ for germination, repeating the treatment for 4 times, recording the germination number of the seeds on the 5 th day and the final germination number of the seeds (about the 14 th day), and calculating the germination vigor and the germination rate, wherein the specific reference is carried out in the 'agricultural seed inspection regulation' GB/T3543.4-1995. The data recording results are shown in table 1.
Table 1: effect of Rice seed treatment composition on Rice Germination Rate
As can be seen from table 1, compared with a blank control, the single rice seed treatment composition, fluoxastrobin and isotianil can improve the germination rate of rice seeds to different extents, the germination rate is obviously improved along with the increase of the usage amount of the composition, the two are in positive correlation basically, preferably, the germination effects of 0.3% of fluoxastrobin, 29.7% of isotianil and 20% of carbosulfan are the best in terms of the mass percentage of the composition, and the fluoxastrobin and isotianil can play a good bactericidal effect and reduce the influence of germs on the germination of rice seeds under the compounding ratio. Meanwhile, compared with a blank control, the single carbosulfan dose does not influence the germination rate of the rice seeds basically, which shows that the carbosulfan in the rice seed treatment composition does not inhibit the effects of fluoxastrobin and isotianil and does not generate toxic effect on the seeds.
Example 2
In this example, "Huanghuazhan" conventional rice variety was selected as the test object, and the test site was selected in the seedling growing greenhouse of the Heshan rice planting demonstration base in Yiyang city, Hunan province.
The rice seed treatment composition is used as a mixed treatment agent, wherein the specific compounding ratio of the components is shown in table 2 in percentage by mass. And respectively taking single agents of fluoxastrobin, isotianil and carbosulfan as reference treatment agents. In order to relatively fully exert the test effect of the medicament, the mixed treatment medicament and the contrast treatment medicament are added with the same auxiliary agents, and the auxiliary agents are calculated by the mass percentage: 5% of triacontanol, 5% of cinnamaldehyde, 5% of fatty alcohol-polyoxyethylene ether, 5% of sodium carboxymethylcellulose, 1% of xanthan gum, 2% of aqueous rose bengal, 2% of ethylene glycol, 0.5% of benzaldehyde and the balance of deionized water to 100%. The mixed treatment medicament and the comparison treatment medicament are provided with medicament dosage gradients of 800g/100kg of seeds, 1000g/100kg of seeds and 1200g/100kg of seeds.
Soaking rice seeds for two days at two nights, changing water once in the morning and evening, standing for 12h, draining, dressing with various agents, breaking breast at 30-35 deg.C, exposing to white, germinating at 25-30 deg.C until the bud length is 1-1.5 mm, airing for about 6 hr, and sowing in different regions with the length of 30m per small region2Sowing 180g of seeds, controlling the seedling raising temperature to be 30-32 ℃ in a greenhouse, repeating the treatment for 4 times, and soaking the seeds in clear water as a blank control.
And then carrying out field conventional management, carrying out bakanae disease prevention effect investigation, randomly investigating 5 points per cell, 20 clusters per point and 100 clusters in total, counting the number of bakanae disease plants on 100 clusters of rice, recording data, and calculating the bakanae disease rate (%) and the prevention and treatment effect (%), wherein the result data are shown in a table 2.
Wherein the content of the first and second substances,
note: CK is the disease rate of the blank control area;
PT is the disease rate of the medicament treatment area.
Table 2: prevention and treatment effect of rice seed treatment composition on rice bakanae disease
As can be known from Table 2, compared with a blank control, the single dose of the fluoxastrobin and the isotianil in the rice seed treatment composition can reduce the occurrence of rice bakanae disease and improve the rice emergence rate to different degrees, and compared with the single dose, the effect of the composition is obviously better than the using effect of the single dose, which shows that the mixed use of the fluoxastrobin and the isotianil has the synergistic effect.
Example 3
In the embodiment, a conventional rice variety of Huanghuazhan is selected as a test object, the variety is identified to be a high-susceptibility rice blast variety, the incidence rate of rice blast is 3 grades of leaf blast and 9 grades of panicle blast, a rice field in a Heshan rice planting demonstration base of Yiyang city, Hunan province is selected as a test place, the soil fertility is medium, the terrain is flat, and the irrigation and drainage are convenient.
The rice seed treatment composition is used as a mixed treatment agent, wherein the specific compounding ratio of the components is shown in table 3 in percentage by mass. And respectively taking single agents of fluoxastrobin, isotianil and carbosulfan as reference treatment agents. In order to relatively fully exert the test effect of the medicament, the mixed treatment medicament and the contrast treatment medicament are added with the same auxiliary agents, and the auxiliary agents are calculated by the mass percentage: 5% of triacontanol, 5% of cinnamaldehyde, 5% of fatty alcohol-polyoxyethylene ether, 5% of sodium carboxymethylcellulose, 1% of xanthan gum, 2% of aqueous rose bengal, 2% of ethylene glycol, 0.5% of benzaldehyde and the balance of deionized water to 100%. The mixed treatment medicament and the comparison treatment medicament are provided with medicament dosage gradients of 800g/100kg of seeds, 1000g/100kg of seeds and 1200g/100kg of seeds.
After the rice seeds are subjected to sprouting and seedling culture in the examples 1 and 2, a seedling transplanting machine is used for transplanting seedlings (the seedlings are uniformly transplanted) when the seedling age reaches 28-35 days, the conditions of leaf blast and neck blast in the growing period are investigated, the yield condition is investigated after the rice seeds are mature, and the specific investigation method is as follows.
Leaf plague: sampling is carried out at 5 points in each cell, 50 plants are taken at each point, the disease index is counted and the prevention effect is calculated for each investigation flag leaf and 2 leaves below the investigation flag leaf, and the result data is shown in a table 3. The classification criteria are as follows:
grade 0, no disease;
1 stage, the number of the leaf spots is less than 5, and the length is less than 1 cm;
grade 3, 6-10 leaf lesions, and the length of part of lesions is more than 1 cm;
grade 5, 11-25 leaf lesions are formed, and part of the lesions are connected into slices and occupy 10-25% of the leaf area;
7, more than 26 diseased spots on the leaves are connected into a tablet, and the diseased spots account for 26 to 50 percent of the area of the leaves;
grade 9, the disease spots are connected into pieces, which account for more than 50% of the leaf area or the whole leaves are withered.
Ear blast: and (3) carrying out parallel jump type 50 clusters in each cell, investigating the total spike number and the disease spike number, counting the disease index, and calculating the control effect, wherein the result data is shown in a table 3. The classification criteria are as follows:
grade 0, no disease;
grade 1, ear loss below 5% (individual branch and stalk onset);
grade 3, ear loss is 6% -20% (1/3 branch attack);
grade 5, ear loss is 21% -50% (ear neck or main axis attack, half shrunken grain);
grade 7, ear loss 51% -70% (ear neck attack, most of shrunken grains);
grade 9, ear loss 71% -100% (ear neck attack, white ear).
Yield: the yield is measured by cutting in a subdistrict when the rice is yellow and ripe, and the data result is shown in a table 4.
Table 3: prevention and treatment effect of rice seed treatment composition on rice blast
The calculation method of the disease index comprises the following steps:
the calculation method of the control effect is the same as that in the example 2.
As can be seen from Table 3, compared with the blank control, the rice seed treatment composition has the advantages that the single agents of fluoxastrobin and isotianil can reduce the rice blast of rice to different degrees, and further has good control effect on the control of the leaf blast, the maximum control effect reaches 91%, while the control on the panicle neck blast is not ideal, but can still reach 75%. Compared with a single agent, the effect of the composition is obviously better than the using effect of the single agent, which shows that the mixed use of the fluoxastrobin and the isotianil has a synergistic effect.
Table 4: effect of Rice seed treatment compositions on Rice yield
As can be seen from the data in Table 4, compared with a blank control, the composition of fluoxastrobin, isotianil and carbosulfan can improve the yield of rice by single dose of fluoxastrobin, isotianil and carbosulfan, wherein the effective components of fluoxastrobin and isotianil are used for reducing rice diseases to achieve the purpose of improving the yield, and more effective components of carbosulfan are used for preventing insect pests and repelling birds, so the yield increasing condition is slightly low when the single dose is used.
As described above, the present invention can be preferably implemented, and the above-mentioned embodiments only describe the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various changes and modifications of the technical solution of the present invention made by those skilled in the art without departing from the design spirit of the present invention shall fall within the protection scope defined by the present invention.
Claims (10)
1. A rice seed treatment composition is characterized by comprising effective components A and B, wherein the component A is fluoxastrobin and isotianil, and the component B is carbosulfan; the mass ratio of the component A to the component B is 3: 2-1: 4, and the mass ratio of the fluoxastrobin to the isotianil is 1: 8-1: 100.
2. The rice seed treatment composition of claim 1, further comprising triacontanol and cinnamaldehyde, wherein the triacontanol and the cinnamaldehyde are present in the seed treatment composition in a ratio of 5% by weight.
3. The rice seed treatment composition according to claim 1, wherein the effective components A and B are respectively prepared into microcapsules for use, or a mixture of the effective components A and B in a mass ratio is prepared into microcapsules for use.
4. A rice seed treatment agent prepared using the rice seed treatment composition according to any one of claims 1 to 3.
5. The rice seed treatment agent according to claim 4, wherein the formulation of the rice seed treatment agent is a suspension agent.
6. The rice seed treatment agent according to claim 4, wherein the rice seed treatment agent is in the form of a microcapsule suspension, the active ingredients A and B are respectively prepared into microcapsules for use, or a mixture of the active ingredients A and B in a mass ratio is prepared into microcapsules for use.
7. A rice seed treatment composition according to any one of claims 1 to 3, or a rice seed treatment agent according to claim 4, for use in rice seed treatment.
8. Use according to claim 7, wherein the rice seed treatment composition, or rice seed treatment, is used in the pelleting process of rice seeds.
9. The use according to claim 7, wherein the rice seed treatment composition, or rice seed treatment agent is used for preventing and treating rice bakanae disease, rice blast.
10. The use of the rice seed treatment composition or rice seed treatment according to claim 7 for increasing rice yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500468.7A CN113180052A (en) | 2021-05-08 | 2021-05-08 | Rice seed treatment composition and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500468.7A CN113180052A (en) | 2021-05-08 | 2021-05-08 | Rice seed treatment composition and application thereof |
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| Publication Number | Publication Date |
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| CN113180052A true CN113180052A (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110500468.7A Pending CN113180052A (en) | 2021-05-08 | 2021-05-08 | Rice seed treatment composition and application thereof |
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| Country | Link |
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| CN (1) | CN113180052A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107047572A (en) * | 2017-05-13 | 2017-08-18 | 北京科发伟业农药技术中心 | Composition containing isotianil and smart furalaxyl |
| CN107087620A (en) * | 2017-05-13 | 2017-08-25 | 北京科发伟业农药技术中心 | Composition containing isotianil and fluorine azoles bacterium acyl azanol |
-
2021
- 2021-05-08 CN CN202110500468.7A patent/CN113180052A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107047572A (en) * | 2017-05-13 | 2017-08-18 | 北京科发伟业农药技术中心 | Composition containing isotianil and smart furalaxyl |
| CN107087620A (en) * | 2017-05-13 | 2017-08-25 | 北京科发伟业农药技术中心 | Composition containing isotianil and fluorine azoles bacterium acyl azanol |
Non-Patent Citations (1)
| Title |
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| 邓仕俊 等: "不同药剂拌种防治水稻病虫害田间药效试验", 《现代农业科技》 * |
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Application publication date: 20210730 |