Biomass particles for assisting commercial molluscicides in use and preparation method of biomass particles
By combining the combination of ingredients such as crop straw fiber and dandelion with adhesives and preservatives, biomass particles are made to solve the problem of unstable effects of existing snails in the field, and achieve more efficient killing snails. Effects and ecological effects.
Patent Information
- Application Number
- CN202411499453.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-01-28
AI Technical Summary
The existing commercial snail killers are unstable in the field. The hardness of the agent is difficult to soften in water-deficient environments. The tendency of snails and snails to feed, the intake is low, and the wettable powder is difficult to directly act on the snail body, resulting in The effect of killing snails is not good.
Adding stalk fiber matrix and dandelion made from crop straw, combined with adhesives and preservatives rich in sugar -containing substances to make biomass particles, mixing with commercially available snails, systems, system Stable and available snail particles.
It improved the efficiency and utilization rate of the snail, enhanced the feeding tendency of snails and Fushou snails to kill snails, ensured the stability of the snails in the field. effect.
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Figure CN119366513A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a biomass particle used as an auxiliary commercial molluscicide and a preparation method thereof, belonging to the technical field of pesticide use. Background Art
[0002] In recent years, the occurrence of mollusks represented by farmland snails and invasive organisms such as golden apple snails has become increasingly serious. Snails will gnaw on the leaves, tender stems and fruits of crops such as soybeans, corn and vegetables, causing losses in agricultural product yields and declining quality. The invasive organism golden apple snail has strong environmental adaptability and a variety of diets. It gnaws on aquatic crop seedlings, such as rice seedlings, water chestnuts, lotus roots, etc., resulting in the stunting of crop growth or even crop failure. Golden apple snails have strong reproductive capacity and their numbers may increase sharply in a short period of time, making prevention and control difficult. In the aquaculture industry, the invasion of golden apple snails also brings great harm. Golden apple snails compete with local aquatic organisms for living space and food resources, destroying the ecological balance. Golden apple snails may also carry parasites and pathogens, spread diseases to farmed fish and shrimp and other aquatic products, affecting the quality and safety of aquatic products, and thus causing a serious blow to the aquaculture industry, reducing the economic benefits of farmers and hindering the healthy development of the aquaculture industry.
[0003] Commercial molluscicides are the main method for controlling snails and golden apple snails. In production, a large number of commercial molluscicides such as metaldehyde, molluscicide, and molluscicide ethanolamine salt are used to control snails and golden apple snails; the registered dosage forms are mainly granules and wettable powders, and the application method is generally broadcasting or spraying with water. However, the broadcasting of granules is greatly affected by environmental conditions. The granules of the agent are hard and difficult to soften in a water-deficient environment, and snails and golden apple snails have weak feeding tendencies and low intakes; wettable powders are difficult to spray with water to act directly on the snails and golden apple snails, and most of the liquid medicine cannot be deposited on the surface of the crop, and the active ingredients lost to the soil cannot play a snail-killing role. Therefore, it is urgent to develop technical means that can effectively solve the problem of unstable field effects of molluscicides. Summary of the invention
[0004] The main purpose of the present invention is to overcome the problems existing in the prior art and provide a method for preparing biomass particles for use as an auxiliary commercial molluscicide, wherein the obtained biomass particles can stably exert the control effect of the molluscicide. The biomass particles and a method for using the same are also provided.
[0005] The technical solution of the present invention to solve the technical problem is as follows:
[0006] The method for preparing biomass particles used as auxiliary commercial molluscicides comprises the following steps:
[0007] The first step is to prepare the straw fiber matrix: the crop straw is dried and crushed, then composted, and then aired to obtain the straw fiber matrix; wherein the crop straw is sourced from at least one of sugar cane, rice, wheat, and corn.
[0008] Step 2, preparation of the binder: taking the raw materials, soaking them in deionized water, heating and boiling them until a transparent and uniform liquid is formed, cooling them, and obtaining the binder; wherein the raw materials are at least one of locust bean gum, guar gum, and sodium alginate.
[0009] Step 3, preparation of an appetite enhancer: washing, cutting, dehydrating and crushing the raw materials to obtain an appetite enhancer; wherein the raw material is at least one of dandelion, shepherd's purse, chicory, ground lettuce, mud cabbage, cabbage and carrot.
[0010] Step 4: Preparation of biomass pellets: Mix the straw fiber matrix, food enhancer, preservative and snail killer, add a binder, granulate and dry to obtain biomass pellets; the snail killer uses a commercial snail killer.
[0011] The method uses crop straw to make a straw fiber matrix, which can make full use of the porous structural characteristics of the fiber, can efficiently adsorb snail-killing active ingredients and attracting components (i.e., food-increasing agents), and inhibit the decomposition of active substances, effectively increasing the duration of the snail-killing agent; the food-increasing agent made from dandelions and the like has a significant stimulating effect on the feeding of mollusks such as snails and golden apple snails, and can be used in conjunction with the snail-killing agent to increase the intake of the snail-killing agent by the mollusks, effectively improving the utilization rate of the snail-killing agent; at the same time, the straw fiber is rich in trace elements such as calcium and magnesium required for the growth and development of mollusks, and the binder is rich in sugar substances that mollusks like to eat, all of which can further increase the feeding tendency of mollusks. Under the combined effect of the above factors, the obtained biomass granules can assist the commercial snail-killing agent to better and more stably exert its control effect.
[0012] Preferably, in the first step, the specific preparation process of the straw fiber matrix is:
[0013] S1. Collect crop straws, dry them in the sun, and when the moisture content of the straws is about 10%-15%, crush the straws and pass them through a 40-80 mesh sieve; the weight parts of the crop straw powder from each source are 10-65 parts respectively.
[0014] S2. Pile the straw powder obtained in S1 into a pile with a height of 0.5-1 meter, add 2-3 grams of Bacillus subtilis or yeast per kilogram, adjust the carbon-nitrogen ratio to 25-30:1, and compost at a temperature of 50℃-65℃ for 2-3 weeks, turning the pile every 48-72 hours to ensure uniform composting.
[0015] S3, airing the decomposed straw matrix obtained in S2 to reduce its moisture content to 20%-35%, thereby obtaining a powdery straw fiber matrix; and packaging the straw fiber matrix into bags for later use.
[0016] By adopting the above preferred scheme, the specific preparation process of the first step can be further optimized.
[0017] Preferably, in the second step, the specific preparation process of the binder is:
[0018] T1. Mix the raw materials evenly and add deionized water for soaking; the mass ratio of the total amount of raw materials to deionized water is 1:30-1000; the weight portion of each raw material is 0.1-1 part.
[0019] T2. Heat the mixture obtained in T1 and continue stirring until the raw materials are completely dissolved in deionized water to form a transparent and uniform liquid.
[0020] T3. Cool the mixed solution obtained in T2 to 50°C-60°C to obtain a binder; put the binder into a wide-mouth glass container for later use.
[0021] By adopting the above preferred scheme, the specific preparation process of the second step can be further optimized.
[0022] Preferably, in the third step, the specific preparation process of the food stimulant is:
[0023] U1. Select raw materials that are fresh, free of pests and diseases, and free of rot.
[0024] U2. Rinse the raw materials with clean water to remove dirt and impurities on the surface. The weight parts of each raw material are 1-10 parts.
[0025] U3. Cut the cleaned raw materials into blocks or sheets with a length of 0.1-0.5 cm.
[0026] U4. Put the raw materials into the dehydrator to remove most of the water in the raw materials. The dehydration method includes hot air drying.
[0027] U5. Grinding: Put the dehydrated raw materials into a grinder for grinding, and pass through a 40-80 mesh sieve after grinding to obtain an appetite enhancer; and pack the appetite enhancer into bags for later use.
[0028] By adopting the above preferred scheme, the specific preparation process of the third step can be further optimized.
[0029] Preferably, in the fourth step, the preservative is sodium benzoate and / or potassium sorbate.
[0030] Preferably, in the fourth step, the commercial molluscicide is in the form of a wettable powder.
[0031] By adopting the above preferred scheme, the specific technical features of the fourth step can be further optimized.
[0032] Preferably, in the fourth step, the specific preparation process of the granules is:
[0033] W1. Initial mixing: Mix the straw fiber matrix, the food enhancer, the preservative and the snail killer and stir evenly to obtain the initial mixed powder.
[0034] W2. Adding a binder: adding 300-400 g of a binder per kg of primary mixed powder to form a dough; at this point, the weight ratio of the straw fiber matrix: binder: food enhancer: preservative: snail killer is 100±50:30±15:20±10:10±5:6±4.
[0035] W3. Granulation: Feed the dough into a feed pellet machine or pellet making machine and press it into cylindrical or spherical particles with a diameter of 1-2 mm.
[0036] W4. Drying: Dry the obtained pellets at 30°C-40°C for 1-2 hours to obtain biomass pellets; bag the biomass pellets for later use.
[0037] By adopting the above preferred scheme, the specific preparation process of the fourth step can be further optimized.
[0038] The present invention also provides:
[0039] The biomass particles are prepared by the method for preparing the biomass particles used as auxiliary commercial molluscicides as described above.
[0040] The method for using the biomass particles described above comprises the following steps:
[0041] The first step is to determine the prevention and control area and investigate the occurrence and distribution of mollusks in the prevention and control area.
[0042] The second step is to evenly spread the biomass pellets in the prevention and control area in the evening, early morning or after rain, with a dosage of 1-5kg / mu.
[0043] Preferably, in the first step, the molluscs include snails and golden apple snails.
[0044] Compared with the prior art, the present invention utilizes crop straw to prepare straw fiber matrix, utilizes dandelion and the like to prepare food enhancer, and utilizes a binder rich in carbohydrates and a preservative. After the commercial snail-killing agent is made into biomass particles, its control effect can be better and more stably exerted; and the biomass particles have significant ecological effects of improving soil and protecting the environment, while increasing the ways of utilizing straw resources, which is of great significance to the development of low-carbon agriculture. BRIEF DESCRIPTION OF THE DRAWINGS
[0045] Figure 1 It is a schematic diagram of the main process of the preparation method of the present invention.
[0046] Figure 2 This is a schematic diagram of the first step of the straw fiber matrix preparation process of the preparation method of the present invention.
[0047] Figure 3 This is a schematic diagram of the binder preparation process in the second step of the preparation method of the present invention.
[0048] Figure 4 This is a schematic diagram of the preparation process of the third step of the preparation method of the present invention.
[0049] Figure 5 This is a schematic diagram of the biomass particle preparation process in the fourth step of the preparation method of the present invention.
[0050] Figure 6 The figure is a schematic diagram of the process of applying the biomass particles of the present invention in the field. DETAILED DESCRIPTION
[0051] like Figure 1 As shown, in a specific implementation, the method for preparing biomass particles used as an auxiliary commercial molluscicide of the present invention comprises the following steps:
[0052] The first step is to prepare the straw fiber matrix: the crop straw is dried and crushed, then piled and fermented to make it mature, and then aired to obtain the straw fiber matrix.
[0053] The crop straw is sourced from at least one of sugarcane, rice, wheat and corn.
[0054] Specifically, if Figure 2 As shown in FIG. 1 , the specific preparation process of the straw fiber matrix is as follows:
[0055] S1. Collect crop straws, dry them in the sun, and when the moisture content of the straws is about 10%-15%, crush the straws and pass them through a 40-80 mesh sieve; the weight parts of the crop straw powder from each source are 10-65 parts respectively.
[0056] S2. Pile the straw powder obtained in S1 into a pile with a height of 0.5-1 meter, add 2-3 grams of Bacillus subtilis or yeast per kilogram, adjust the carbon-nitrogen ratio to 25-30:1, and compost at a temperature of 50℃-65℃ for 2-3 weeks, turning the pile every 48-72 hours to ensure uniform composting.
[0057] S3, airing the decomposed straw matrix obtained in S2 to reduce its moisture content to 20%-35%, thereby obtaining a powdery straw fiber matrix; and packaging the straw fiber matrix into bags for later use.
[0058] Step 2: Preparation of the adhesive: Take the raw materials, soak them in deionized water, heat and boil them until a transparent and uniform liquid is formed, and cool them to obtain the adhesive.
[0059] Wherein, the raw material is at least one of locust bean gum, guar gum and sodium alginate.
[0060] Specifically, if Figure 3As shown, the specific preparation process of the binder is:
[0061] T1. Mix the raw materials evenly and add deionized water for soaking; the mass ratio of the total amount of raw materials to deionized water is 1:30-1000. The weight portion of each raw material is 0.1-1 part.
[0062] T2. Heat the mixture obtained in T1 and continue stirring until the raw materials are completely dissolved in deionized water to form a transparent and uniform liquid.
[0063] T3. Cool the mixed solution obtained in T2 to 50°C-60°C to obtain a binder; put the binder into a wide-mouth glass container for later use.
[0064] Step 3: Preparation of the appetite enhancer: The raw materials are cleaned, cut, dehydrated and crushed to obtain the appetite enhancer.
[0065] The raw material is at least one of dandelion, shepherd's purse, chicory, ground lettuce, cabbage, cabbage and carrot.
[0066] Specifically, if Figure 4 As shown, the specific preparation process of the food increasing agent is:
[0067] U1. Select raw materials that are fresh, free of pests and diseases, and free of rot.
[0068] U2. Rinse the raw materials with clean water to remove dirt and impurities on the surface. The weight parts of each raw material are 1-10 parts.
[0069] U3. Cut the cleaned raw materials into blocks or sheets with a length of 0.1-0.5 cm.
[0070] U4. Put the raw materials into the dehydrator for dehydration to remove most of the water in the raw materials. The dehydration method can be hot air drying.
[0071] U5. Grinding: Put the dehydrated raw materials into a grinder for grinding, and pass through a 40-80 mesh sieve after grinding to obtain an appetite enhancer; and pack the appetite enhancer into bags for later use.
[0072] Step 4: Preparation of biomass pellets: Mix the straw fiber matrix, food enhancer, preservative and snail killer, add a binder, pelletize and dry to obtain biomass pellets.
[0073] The molluscicide is a commercially available molluscicide in the form of a wettable powder; the preservative is sodium benzoate and / or potassium sorbate.
[0074] Specifically, if Figure 5 As shown, the specific preparation process of the granules is:
[0075] W1. Initial mixing: Mix the straw fiber matrix, the food enhancer, the preservative and the snail killer and stir evenly to obtain the initial mixed powder.
[0076] W2. Adding a binder: adding 300-400 g of a binder per kg of primary mixed powder to form a dough; at this point, the weight ratio of the straw fiber matrix: binder: food enhancer: preservative: snail killer is 100±50:30±15:20±10:10±5:6±4.
[0077] W3. Granulation: Feed the dough into a feed pellet machine or pellet making machine and press it into cylindrical or spherical particles with a diameter of 1-2 mm.
[0078] W4. Drying: Dry the obtained pellets at 30°C-40°C for 1-2 hours to obtain biomass pellets; bag the biomass pellets for later use.
[0079] In this way, the biomass particles of the present invention can be prepared.
[0080] The method for using the biomass particles of the present invention comprises the following steps:
[0081] The first step is to determine the prevention and control area and investigate the occurrence and distribution of mollusks in the prevention and control area; mollusks include snails and golden apple snails.
[0082] The second step is to evenly spread the biomass pellets in the prevention and control area in the evening, early morning or after rain, with a dosage of 1-5 kg / mu. Wear gloves when spreading to ensure safety.
[0083] The present invention will be described in further detail below with reference to the accompanying drawings and in combination with embodiments, but the present invention is not limited to the examples given.
[0084] Example 1
[0085] This embodiment is a method for preparing biomass particles used as auxiliary commercial molluscicides. The basic process of this embodiment is consistent with the specific technical solution of the present invention described above.
[0086] The specific contents of this embodiment are as follows:
[0087] The first step is to prepare the straw fiber matrix: the crop straw is dried and crushed, then composted, and then aired to obtain the straw fiber matrix. The crop straw is sourced from at least one of sugar cane, rice, wheat, and corn.
[0088] The specific preparation process of straw fiber matrix is as follows:
[0089] The crop straws were collected and air-dried until the moisture content was 10%, and then the straws were crushed and passed through an 80-mesh sieve.
[0090] Carry out composting treatment: pile the crushed straw powder into a pile 0.5 meters high, add 2 grams of Bacillus subtilis or yeast per kilogram, adjust the carbon-nitrogen ratio to 25:1, and compost at 50°C for 2 weeks, turning the pile every 72 hours to ensure uniform composting.
[0091] The decomposed straw matrix is air-dried to reduce the moisture content to 20%. The air-dried matrix powder is packaged into bags.
[0092] Step 2: Preparation of the binder: taking the raw materials, soaking them in deionized water, heating and boiling them until a transparent and uniform liquid is formed, and cooling them to obtain the binder. The raw materials are at least one of locust bean gum, guar gum, and sodium alginate.
[0093] The specific preparation process of the binder is:
[0094] Weighing and soaking: Weigh the required amount of raw materials according to the mass ratio of the total amount of raw materials to deionized water of 1:30-1000, mix the raw materials evenly, and then add deionized water into the container to ensure that the raw materials are fully soaked.
[0095] Heating and boiling: Heat the soaked raw material mixture and continue stirring until the raw materials are completely dissolved in deionized water to form a transparent and uniform solution.
[0096] The mixed solution cooled to 50°C was placed in a wide-mouth glass bottle for later use.
[0097] Step 3: Preparation of the appetite enhancer: washing, cutting, dehydrating and crushing the raw materials to obtain the appetite enhancer, wherein the raw materials are at least one of dandelion, shepherd's purse, chicory, ground lettuce, radish, cabbage and carrot.
[0098] The specific preparation process of the food enhancer is:
[0099] Raw material selection: Choose raw materials that are fresh, free of pests and diseases, and free of rot.
[0100] Cleaning: Rinse the raw materials with clean water to remove dirt and impurities on the surface.
[0101] Cutting: Cut the cleaned raw materials into blocks or slices with a length of 0.5 cm.
[0102] Dehydration: Put the raw materials into the dehydrator for dehydration to remove most of the water in the raw materials. The dehydration method can be hot air drying.
[0103] Crushing: Put the dehydrated raw materials into the crusher for crushing, and then pass through a 40-mesh sieve.
[0104] Packaging: Pack the crushed food enhancer into bags for later use.
[0105] Step 4: Preparation of biomass pellets: Mix the straw fiber matrix, the food enhancer, the preservative, and the snail killer, add a binder, granulate, and dry to obtain biomass pellets. The snail killer uses a commercial snail killer in the form of a wettable powder; the preservative uses sodium benzoate and / or potassium sorbate.
[0106] The specific preparation process of granules is as follows:
[0107] Initial mixing: Mix the straw fiber matrix, food enhancer, preservative and snail killer and stir evenly to obtain the initial mixed powder.
[0108] Adding a binder: adding 300-400 g of a binder per kg of primary mixed powder to form a dough; at this point, the weight ratio of the straw fiber matrix: binder: food enhancer: preservative: snail killer is 100±50:30±15:20±10:10±5:6±4.
[0109] Granulation: Feed the dough into a feed pellet machine or pellet making machine and press it into cylindrical or spherical particles with a diameter of 2 mm.
[0110] Drying: Dry the obtained granules at 40°C for 1 hour.
[0111] Packaging: The dried biomass pellets are packed in bags for later use.
[0112] Example 2
[0113] This example verifies the effect of the biomass particles prepared by the preparation method of Example 1 through comparative experiments.
[0114] The specific contents of this embodiment are as follows:
[0115] Set up the following control examples, implementation examples, and comparative examples.
[0116] [Comparative Example 1] Use commercially available product: 80% metaldehyde wettable powder (Shanghai Yuelian Biotechnology Co., Ltd.). Dosage: 70g / mu, spray, active ingredient 0.08g / m 2 .
[0117] [Implementation Example 1] The preparation method of Example 1 was used to prepare biomass particles according to the following formula.
[0118] (1) Composition of straw fiber matrix:
[0119] 55 parts of sugarcane straw powder, 40 parts of rice straw powder; add yeast powder during composting;
[0120] (2) Binder composition:
[0121] 0.1 parts of locust bean gum, 0.1 parts of guar gum, 99.8 parts of water;
[0122] (3) Food enhancer composition:
[0123] 4 parts dandelion, 3 parts carrot, 3 parts kale;
[0124] (4) Preservative: Sodium benzoate;
[0125] (5) Molluscicide: The commercially available product of Control Example 1: 80% metaldehyde wettable powder was used.
[0126] The weight ratio of straw fiber matrix: binder: food enhancer: preservative: snail killer is 100:30:20:10:3. The snail killer active ingredient content in the obtained biomass pellets is 1.47%; dosage: 3kg / mu of biomass pellets, broadcast application, effective ingredient 0.07g / m 2 .
[0127] [Comparative Example 1] The steps except the third step in the preparation method of Example 1 are used to prepare biomass particles without an oregano according to the following formula.
[0128] (1) Composition of straw fiber matrix:
[0129] 55 parts of sugarcane straw powder, 40 parts of rice straw powder; add yeast powder during composting;
[0130] (2) Binder composition:
[0131] 0.1 parts of locust bean gum, 0.1 parts of guar gum, 99.8 parts of water;
[0132] (3) Preservative: Sodium benzoate;
[0133] (4) Molluscicide: The commercially available product of Control Example 1: 80% metaldehyde wettable powder was used.
[0134] The weight ratio of straw fiber matrix: binder: preservative: snail killer is 100:30:10:3. The snail killer active ingredient content in the obtained biomass pellets is 1.68%; dosage: 3kg / mu of biomass pellets, broadcast application, active ingredient 0.08g / m 2 .
[0135] [Comparative Example 2] Use commercially available product: 50% molluscicide ethanolamine salt wettable powder (Jiangsu Aijin Crop Science and Technology Group Co., Ltd.). Dosage: 80g / mu, spray, active ingredient 0.06g / m 2
[0136] [Implementation Example 2] The preparation method of Example 1 was adopted to prepare biomass particles according to the following formula.
[0137] (1) Composition of straw fiber matrix:
[0138] 50 parts of sugarcane straw powder, 45 parts of wheat straw powder; add yeast powder during composting;
[0139] (2) Binder composition:
[0140] 0.1 parts of locust bean gum, 1 part of sodium alginate, 98.9 parts of water;
[0141] (3) Food enhancer composition:
[0142] 4 parts shepherd's purse, 3 parts carrots, 3 parts pureed cabbage;
[0143] (4) Preservative: Potassium sorbate;
[0144] (5) Molluscicide: The commercially available product of Control Example 2 was used: 50% molluscicide ethanolamine salt wettable powder.
[0145] The weight ratio of straw fiber matrix: binder: food enhancer: preservative: snail killer is 100:30:20:10:6. The snail killer active ingredient content in the obtained biomass pellets is 1.81%; dosage: 2kg / mu of biomass pellets, broadcast application, active ingredient 0.05g / m 2 .
[0146] [Comparative Example 2] The steps except the third step in the preparation method of Example 1 are used to prepare biomass particles without an oregano according to the following formula.
[0147] (1) Composition of straw fiber matrix:
[0148] 50 parts of sugarcane straw powder, 45 parts of wheat straw powder; add yeast powder during composting;
[0149] (2) Binder composition:
[0150] 0.1 parts of locust bean gum, 1 part of sodium alginate, 98.9 parts of water;
[0151] (3) Preservative: Potassium sorbate;
[0152] (4) Molluscicide: The commercially available product of Control Example 2 was used: 50% molluscicide ethanolamine salt wettable powder.
[0153] The weight ratio of straw fiber matrix: binder: preservative: snail killer is 100:30:10:6. The snail killer active ingredient content in the obtained biomass pellets is 2.05%; dosage: biomass pellets 2kg / mu, broadcast application, active ingredient 0.06g / m 2 .
[0154] [Comparative Example 3] Use commercially available product: 70% molluscicide wettable powder (Shandong Lubang Crop Science Co., Ltd.). Dosage: 50g / mu, spray, active ingredient 0.05g / m2 .
[0155] [Implementation Example 3] The preparation method of Example 1 was adopted to prepare biomass particles according to the following formula.
[0156] (1) Composition of straw fiber matrix:
[0157] 30 parts of sugarcane straw powder, 65 parts of corn straw powder; add yeast powder during composting;
[0158] (2) Binder composition:
[0159] 0.1 parts of guar gum, 1 part of sodium alginate, 98.9 parts of water;
[0160] (3) Food enhancer composition:
[0161] 40 parts of chicory, 30 parts of carrots, and 30 parts of ground lettuce;
[0162] (4) Preservative: Potassium sorbate;
[0163] (5) Molluscicide: The commercially available product of Control Example 3: 70% molluscicide wettable powder was used.
[0164] The weight ratio of straw fiber matrix: binder: food enhancer: preservative: snail killer is 100:30:20:10:4. The snail killer active ingredient content in the obtained biomass pellets is 1.71%; dosage: 2kg / mu of biomass pellets, broadcast application, active ingredient 0.05g / m 2 .
[0165] [Comparative Example 3] The steps except the third step in the preparation method of Example 1 are used to prepare biomass particles without an oregano according to the following formula.
[0166] (1) Composition of straw fiber matrix:
[0167] 30 parts of sugarcane straw powder, 65 parts of corn straw powder; add yeast powder during composting;
[0168] (2) Binder composition:
[0169] 0.1 parts of guar gum, 1 part of sodium alginate, 98.9 parts of water;
[0170] (3) Preservative: Potassium sorbate;
[0171] (4) Molluscicide: The commercially available product of Control Example 3: 70% molluscicide wettable powder was used.
[0172] The weight ratio of straw fiber matrix: binder: preservative: snail killer is 100:30:10:4. The snail killer active ingredient content in the obtained biomass pellets is 1.94%; dosage: 2kg / mu of biomass pellets, broadcast application, active ingredient 0.06g / m 2 .
[0173] This example adopts the following experimental method:
[0174] The experiment was conducted in the cabbage vegetable test field of the applicant of the present invention. The cabbage variety planted was "Qiusian No. 2", with a planting density of about 35cm×35cm. It was cultivated in the open field in summer and transplanted in mid-June. The snails occurred less frequently, so they were collected in the wild and moved to the test field. They were mainly mixed populations of the same type of snails and gray snails. Each plot had 5 points, each point was 2m 2 , about 20 snails were placed at each point. One day after the test, the base number was investigated before the drug was used, and the number of remaining live snails was investigated one day and seven days after the drug was used, and the reduction rate and control effect were calculated. The calculation formula is as follows:
[0175]
[0176] The above control example, implementation example, and comparative example were used to conduct experiments, and a blank control group was set up. The results are shown in Table 1 below.
[0177] Table 1. Field control effect on cabbage field snails
[0178]
[0179]
[0180] The results show that each implementation example has significantly better field control effect than the corresponding control example and comparison example.
[0181] Based on the above embodiments, the present invention has the following beneficial effects:
[0182] (1) The porous structure of the fiber in the crop straw is fully utilized to efficiently adsorb the active ingredients and attractant components (i.e., feeding agents) of the snailicide, and inhibit the decomposition of the active substances, thereby effectively prolonging the effective period of the snailicide.
[0183] (2) Appetite enhancers such as dandelion, shepherd's purse, and chicory have a significant stimulating effect on the feeding of mollusks. When used in combination with molluscicides, they can increase the intake of molluscicides by snails and golden apple snails, effectively improving the utilization rate of molluscicides.
[0184] (3) Straw fibers are rich in trace elements such as calcium and magnesium that are necessary for the growth and development of mollusks, and polysaccharide binders are rich in sugar substances that mollusks like to eat, which can further increase the feeding tendency of mollusks.
[0185] (4) The application of the biomass granules of the present invention has significant ecological effects of improving soil and protecting the environment, while increasing the ways of straw resource utilization, which is of great significance to the development of low-carbon agriculture.
[0186] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.
Claims
1. A method for preparing biomass particles used as auxiliary commercial molluscicides, characterized in that: The following steps are involved: The first step is to prepare the straw fiber matrix: the crop straw is dried and crushed, and then composted, and then aired to obtain the straw fiber matrix; wherein the crop straw is sourced from at least one of sugar cane, rice, wheat, and corn; Step 2: Preparation of a binder: taking a raw material, soaking it in deionized water, heating and boiling it until a transparent and uniform liquid is formed, and cooling it to obtain a binder; wherein the raw material is at least one of locust bean gum, guar gum, and sodium alginate; Step 3: Preparation of the appetite enhancer: washing, cutting, dehydrating and crushing the raw materials to obtain the appetite enhancer; wherein the raw materials are at least one of dandelion, shepherd's purse, chicory, ground lettuce, mud cabbage, cabbage and carrot; Step 4: Preparation of biomass pellets: Mix the straw fiber matrix, food enhancer, preservative and snail killer, add a binder, granulate and dry to obtain biomass pellets; the snail killer uses a commercial snail killer.
2. The method for preparing biomass particles used as auxiliary commercial molluscicide according to claim 1 is characterized in that, in the first step, the specific preparation process of the straw fiber matrix is: S1. Collect crop straws, dry them in the sun, and when the moisture content of the straws is about 10%-15%, crush the straws and pass them through a 40-80 mesh sieve; the weight parts of the crop straw powder from each source are 10-65 parts respectively; S2, pile the straw powder obtained in S1 into a pile with a height of 0.5-1 meter, add 2-3 grams of Bacillus subtilis or yeast per kilogram, adjust the carbon-nitrogen ratio to 25-30:1, and compost at a temperature of 50°C-65°C for 2-3 weeks, turning the pile every 48-72 hours to ensure uniform decomposition; S3, airing the decomposed straw matrix obtained in S2 to reduce its moisture content to 20%-35%, thereby obtaining a powdery straw fiber matrix; and packaging the straw fiber matrix into bags for later use.
3. The method for preparing biomass particles used as an auxiliary commercial molluscicide according to claim 1 is characterized in that, in the second step, the specific preparation process of the binder is: T1. Mix the raw materials evenly and add deionized water for soaking; the mass ratio of the total amount of raw materials to deionized water is 1:30-1000; the weight portion of each raw material is 0.1-1 part; T2, heating the mixture obtained in T1 and continuously stirring until the raw materials are completely dissolved in deionized water to form a transparent and uniform liquid; T3. Cool the mixed solution obtained in T2 to 50°C-60°C to obtain a binder; put the binder into a wide-mouth glass container for later use.
4. The method for preparing biomass particles used as auxiliary commercial molluscicide according to claim 1 is characterized in that, in the third step, the specific preparation process of the food-increasing agent is: U1. Select raw materials that are fresh, free of pests and diseases, and free of decay; U2. Rinse the raw materials with clean water to remove dirt and impurities on the surface; the weight parts of each raw material are 1-10 parts respectively; U3. Cut the cleaned raw materials into blocks or sheets with a length of 0.1-0.5 cm; U4. Place the raw materials in a dehydrator for dehydration to remove most of the water in the raw materials; the dehydration method includes hot air drying; U5. Grinding: Put the dehydrated raw materials into a grinder for grinding, and pass through a 40-80 mesh sieve after grinding to obtain an appetite enhancer; and pack the appetite enhancer into bags for later use.
5. The method for preparing biomass particles used as auxiliary commercial molluscicide according to claim 1, characterized in that: In the fourth step, sodium benzoate and / or potassium sorbate are used as preservatives.
6. The method for preparing biomass particles used as auxiliary commercial molluscicide according to claim 1, characterized in that: In the fourth step, the commercial molluscicide is in the form of a wettable powder.
7. The method for preparing biomass granules used as auxiliary commercial molluscicide according to claim 1 is characterized in that, in the fourth step, the specific preparation process of the granules is: W1. Initial mixing: Mix the straw fiber matrix, the food enhancer, the preservative and the snail killer and stir evenly to obtain the initial mixed powder; W2, adding a binder: adding 300-400 g of a binder per kg of the primary mixed powder to form a dough; at this point, the weight ratio of the straw fiber matrix: binder: food enhancer: preservative: snail killer is 100±50:30±15:20±10:10±5:6±4; W3, granulation: the dough is fed into a feed pellet machine or a pellet machine and pressed into cylindrical or spherical particles with a diameter of 1-2 mm; W4. Drying: Dry the obtained pellets at 30°C-40°C for 1-2 hours to obtain biomass pellets; bag the biomass pellets for later use.
8. Biomass particles obtained by the method for preparing biomass particles used as auxiliary commercial molluscicides according to any one of claims 1 to 7.
9. The method for using the biomass particles according to claim 8, characterized in that: The following steps are involved: The first step is to determine the control area and investigate the occurrence and distribution of mollusks in the control area; The second step is to evenly spread the biomass pellets in the prevention and control area in the evening, early morning or after rain, with a dosage of 1-5kg / mu.
10. The method of use according to claim 8, characterized in that: In the first step, mollusks include snails and apple snails.