Bird-repelling compound fertilizer with triple functions and preparation method of bird-repelling compound fertilizer

Abstract

The invention discloses a bird repelling compound fertilizer with triple functions and a preparation method thereof, and belongs to the technical field of agricultural chemical bird repelling. The bird repelling compound fertilizer comprises the following components in percentage by weight: 0.1-10% of a bird repelling agent, 0.01-10% of a stabilizer, 60-80% of a fertilizer carrier and 0.1-20% of a granulating agent. The preparation method comprises the following steps: uniformly mixing the components with water in proportion, granulating, drying and screening to obtain the bird repelling compound fertilizer. The bird-repelling compound fertilizer is convenient to use, has the effects of sterilizing and repelling birds and animals, contains sufficient nutrients, can provide sufficient nutrient substances for seed germination and growth, also has a sterilizing effect, and can protect seed germination and normal growth.

Description

Technical Field

[0001] The invention relates to a bird-repellent compound fertilizer with triple functions and a preparation method thereof, and belongs to the technical field of agricultural chemical bird-repellent. Background Art

[0002] Due to the increase in green areas, bird habitats, and people's enhanced awareness of bird protection, the number of birds is increasing. In the early spring, in the peanut, soybean, and corn planting areas in the northeast, and the early rice planting areas in Hunan, Hubei, Jiangxi and other places, the weather is relatively cold in early spring, and birds do not have enough food. Birds will eat the newly sown seeds in the field, which seriously affects the germination rate of seeds and the later yield, and the losses are getting bigger and bigger.

[0003] At present, bird repellent measures generally use guns, cannons and trumpets, net covering, puppets, scarecrows, bird repellents and spraying bird repellents, etc. Traditional measures such as guns, cannons and trumpets, net covering, puppets, scarecrows, bird repellents, etc. are time-consuming and labor-intensive and have little effect.

[0004] In recent years, there have been some bird repellents on the market, whose components are mainly bird repellent compositions extracted from plant raw materials such as Sophora flavescens, Celastrus davidiana, Stemona japonica, and Wolfberry chamaejasma, and bird repellent compositions prepared with agricultural chemical raw materials such as thiram, carbosulfan, anthraquinone, and ammonium aluminum sulfate. Either they are added with pesticides, which are highly toxic and use poisoning to repel bird pests, or they are relatively expensive and require high agricultural investment by farmers. Moreover, their dosage forms are all aqueous, emulsifiable concentrates, or powders, otherwise they will cause more pesticide residues, and the timeliness of bird repellent will inevitably be poor. There have also been various bird-damaging incidents. These repellents mainly use bitterness and toxicity to achieve the purpose of bird repelling. If used for a long time, they will not only cause harm to birds, but also affect the ecological environment. They do not meet the requirements of ecological protection and the country's bird protection measures.

[0005] In view of the above problems, it is urgent to develop a bird-repellent product that can effectively repel birds, does not harm birds, is easy to use, saves time and effort, and is non-toxic and harmless. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a bird-repellent compound fertilizer with triple functions and a preparation method thereof, which is easy to use, has the effects of sterilization and repelling birds and beasts, and contains sufficient nutrient content.

[0007] In order to solve the problems of the prior art, the technical solution provided by the present invention is: A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 0.1-10% of a bird repellent, 0.01-10% of a stabilizer, 60-80% of a fertilizer carrier, and 0.1-20% of a granulating agent.

[0008] Furthermore, the bird repellent is one or more of 2-propyl-2-naphthoate, eugenol or eucalyptol.

[0009] Methyl 2-naphthoate is an aromatic compound with a fragrant smell, eugenol emits a strong clove scent, eucalyptol has a camphor scent and a cool herbal taste, and has bactericidal and insecticidal effects. These three substances have a strong smell and form an odor belt around crops. When birds smell it, it will affect their trigeminal nervous system and cause them to have an allergic reaction, causing the birds to fly away or migrate for food and will not come back during their short-term memory period. It has a significant bird-repelling effect. Moreover, the bird-repelling compound fertilizer contains sufficient nutrients to provide sufficient nutrients for seed germination. It also has a bactericidal effect, which can protect seeds from germination and normal growth, and can be sown together with seeds.

[0010] Furthermore, when the bird repellent has one component, the added amount is 0.1-5%, and when the bird repellent has two or three components, the total amount added is 0.1-10%.

[0011] Furthermore, the stabilizer is one or more of 2,4-dimethyl-6-tert-butylphenol or tea polyphenols.

[0012] Furthermore, when the stabilizer has one component, the added amount is 0.01-3%, and when the stabilizer has two components, the total added amount is 0.01-10%.

[0013] Furthermore, the fertilizer carrier is one or more of urea, monoammonium phosphate, potassium chloride, potassium sulfate, ammonium sulfate or ammonium carbonate.

[0014] Furthermore, when the fertilizer carrier has one component, the added amount is 60-70%, wherein when the fertilizer carrier is ammonium sulfate or ammonium carbonate, the added amount is 60-65%; when the fertilizer carrier has two or more components, the total added amount is 60-80%.

[0015] Furthermore, the granulating agent is one or more of polyvinyl alcohol, kaolin or modified cellulose.

[0016] Furthermore, when the granulating agent has one component, the added amount is 0.1-10%, and when the granulating agent has two or three components, the total amount added is 0.1-20%.

[0017] A method for preparing a bird-repellent compound fertilizer with triple functions, comprising the following steps: (1) Mix the bird repellent and water evenly; (2) adding a stabilizer to the mixture obtained in step (1) and mixing uniformly; (3) adding the fertilizer carrier to the mixture obtained in step (2) and mixing evenly; (4) Adding the granulating agent to the mixture obtained in step (3), mixing thoroughly, granulating, drying and screening to obtain a bird-repellent compound fertilizer.

[0018] Furthermore, in step (1), the amount of water added is 5% of the total weight of the bird repellent, stabilizer, fertilizer carrier and granulating agent.

[0019] Furthermore, in step (4), the granulation method is any one of roller or extrusion; the drying temperature is 50-100°C, and the drying time is 30-90min; the sieved particle size is 2000-4000um, and the product outside the sieved particle size requirement is crushed and returned to step (4) for re-granulation.

[0020] Furthermore, in step (4), the moisture content of the particles of the bird-repellent compound fertilizer is ≤3%.

[0021] A method for using a bird-repellent compound fertilizer with triple functions: applying the bird-repellent compound fertilizer with triple functions as a base fertilizer or sowing it with seeds; wherein the mass ratio of the bird-repellent compound fertilizer to seeds is (2-4):1.

[0022] Compared with the prior art, the present invention has the following beneficial effects: (1) The bird-repellent compound fertilizer prepared by the present invention can effectively reduce the feeding of birds on crop seeds or young shoots, and can reduce the feeding amount by 50-80%.

[0023] (2) The triple-functional bird-repellent compound fertilizer prepared by the present invention not only has a significant bird-repellent effect, but also contains sufficient nutrient content, which can provide sufficient nutrients for seed germination and growth, and also has a bactericidal effect, which can protect the germination and normal growth of seeds.

[0024] (3) The bird-repellent compound fertilizer prepared by the present invention can form an odor belt around crops. The odor belt can not only repel flying birds, but also effectively repel beasts. The odor belt has a significant repellent effect and is harmless to birds and beasts. While protecting crops, it will not harm birds and beasts. It has a good environmental protection effect, protects the normal planting and management of crops, increases yields, and reduces seedling costs.

[0025] (4) The bird-repellent compound fertilizer of the present invention contains ingredients such as eucalyptol and eugenol, which can be used as a fungicide in agriculture to kill bacteria and protect seed germination and normal growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The sparrow refusal rate for wheat; Figure 2 is the magpie refusal rate of wheat; Figure 3 The pigeon refusal rate for wheat; Figure 4 is the sparrow feeding refusal rate of rice; Figure 5 is the magpie feeding refusal rate of rice; Figure 6 The pigeon refusal rate for rice; Figure 7 The sparrow refusal rate for corn; Figure 8 The magpie refusal rate for corn; Fig. 9 The pigeon refusal rate for corn. DETAILED DESCRIPTION

[0027] Example 1 A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 2.1% eugenol, 2.2% 2,4-dimethyl-6-tert-butylphenol, 19.5% urea, 14.5% monoammonium phosphate, 20.3% potassium chloride, 9.7% potassium sulfate, 6.2% ammonium sulfate, 7.5% ammonium carbonate, 6.0% polyvinyl alcohol, 8.0% kaolin and 4.0% corn starch.

[0028] A method for preparing a bird-repellent compound fertilizer with triple functions, comprising the following steps: (1) Mix eugenol and water evenly; (2) adding 2,4-dimethyl-6-tert-butylphenol to the mixture obtained in step (1) and mixing well; (3) adding urea, monoammonium phosphate, potassium chloride, potassium sulfate, ammonium sulfate and ammonium carbonate to the mixture obtained in step (2) and mixing them evenly; (4) adding polyvinyl alcohol, kaolin and corn starch to the mixture obtained in step (3), mixing thoroughly, performing drum granulation, drying at 50° C. for 90 min, and sieving at a particle size of 2000-4000 μm to obtain a bird-repellent compound fertilizer; In step (1), the amount of water added is 5% of the total weight of the bird repellent, stabilizer, fertilizer carrier and granulating agent.

[0029] Example 2 A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 1.2% eugenol, 1.3% eucalyptol, 2.5% 2,4-dimethyl-6-tert-butylphenol, 18.4% urea, 17.0% monoammonium phosphate, 18.4% potassium chloride, 10.4% potassium sulfate, 10.3% ammonium sulfate, 5.5% ammonium carbonate, 7.0% kaolin and 8.0% modified cellulose.

[0030] A method for preparing a bird-repellent compound fertilizer with triple functions, comprising the following steps: (1) Mix eugenol, eucalyptol and water evenly; (2) adding 2,4-dimethyl-6-tert-butylphenol to the mixture obtained in step (1) and mixing well; (3) adding urea, monoammonium phosphate, potassium chloride, potassium sulfate, ammonium sulfate and ammonium carbonate to the mixture obtained in step (2) and mixing them evenly; (4) adding kaolin and modified cellulose to the mixture obtained in step (3), mixing thoroughly, extruding and granulating, drying at 100° C. for 30 min, and sieving at a particle size of 2000-4000 μm to obtain a bird-repellent compound fertilizer; In step (1), the amount of water added is 5% of the total weight of the bird repellent, stabilizer, fertilizer carrier and granulating agent.

[0031] Example 3 A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 1.4% of 2-propyl-2-naphthoate, 1.4% of eucalyptol, 2.5% of tea polyphenols, 22.9% of urea, 14.0% of monoammonium phosphate, 18.3% of potassium chloride, 11.3% of potassium sulfate, 7.5% of ammonium sulfate, 2.7% of ammonium carbonate, 7.0% of polyvinyl alcohol, 5.0% of modified cellulose and 6.0% of corn starch.

[0032] A method for preparing a bird-repellent compound fertilizer with triple functions, comprising the following steps: (1) Mix 2-propyl-2-naphthoate, eucalyptol and water evenly; (2) adding tea polyphenols to the mixture obtained in step (1) and mixing well; (3) adding urea, monoammonium phosphate, potassium chloride, potassium sulfate, ammonium sulfate and ammonium carbonate to the mixture obtained in step (2) and mixing them evenly; (4) adding polyvinyl alcohol, modified cellulose and corn starch to the mixture obtained in step (3), mixing them thoroughly, performing drum granulation, drying at 75° C. for 60 min, and sieving at a particle size of 2000-4000 μm to obtain a bird-repellent compound fertilizer; In step (1), the amount of water added is 5% of the total weight of the bird repellent, stabilizer, fertilizer carrier and granulating agent.

[0033] Example 4 A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 0.8% 2-propyl-2-naphthoate, 0.6% eugenol, 0.6% eucalyptol, 2.0% tea polyphenols, 17.5% urea, 14.0% monoammonium phosphate, 18.5% potassium chloride, 12.2% potassium sulfate, 9.4% ammonium sulfate, 4.4% ammonium carbonate, 7.0% polyvinyl alcohol, 6.0% kaolin and 7.0% corn starch.

[0034] The preparation method is the same as that of Example 3.

[0035] Example 5 A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 0.8% of 2-propyl-2-naphthoate, 1.0% of eugenol, 1.0% of eucalyptol, 1.3% of 2,4-dimethyl-6-tert-butylphenol, 1.2% of tea polyphenols, 21.2% of urea, 10.6% of monoammonium phosphate, 20.4% of potassium chloride, 11.8% of potassium sulfate, 12.4% of ammonium sulfate, 3.3% of ammonium carbonate, 8.0% of kaolin and 7.0% of modified cellulose.

[0036] The preparation method is the same as that of Example 3.

[0037] Example 6 A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 0.6% 2-propyl-2-naphthoate, 0.6% eugenol, 0.9% eucalyptol, 2.0% tea polyphenols, 21.9% urea, 13.2% monoammonium phosphate, 17.5% potassium chloride, 10.8% potassium sulfate, 9.3% ammonium sulfate, 3.2% ammonium carbonate, 8.0% polyvinyl alcohol, 6.0% modified cellulose and 6.0% corn starch.

[0038] The preparation method is the same as that of Example 3.

[0039] Example 7 A bird-repellent compound fertilizer with triple functions comprises the following components by weight percentage: 1.1% 2-propyl-2-naphthoate, 1.6% eugenol, 2.6% 2,4-dimethyl-6-tert-butylphenol, 16.5% urea, 12.4% monoammonium phosphate, 18.8% potassium chloride, 12.5% ​​potassium sulfate, 11.9% ammonium sulfate, 3.6% ammonium carbonate, 8.0% polyvinyl alcohol, 5.0% kaolin and 6.0% corn starch.

[0040] The preparation method is the same as that of Example 3.

[0041] Experimental Example 1 Wheat was mixed with the bird repellent compound fertilizers of Examples 1-7 at a mass ratio of 1:2, and the repellent effect was tested within 96 hours, which were recorded as experimental groups 1-7. Wheat was mixed with a compound fertilizer prepared without the bird repellent composition at a mass ratio of 1:2, and the repellent effect was tested within 96 hours, which was recorded as a control group.

[0042] The specific method is: raise magpies, sparrows, pigeons, etc. in a greenhouse, feed wheat regularly, and measure the average food intake of a single bird. Record the weight difference before and after feeding, calculate the feeding rate and refusal rate, repeat the experiment three times, and calculate the average value.

[0043] Among them, feeding rate = (original weight - remaining weight after feeding) / original weight * 100%; Feed refusal rate = (CK feeding rate - treatment feeding rate) / CK feeding rate * 100%; The CK feeding rate is the feeding rate of the control group, and the treatment feeding rate is the feeding rate of the experimental group.

[0044] Table 1. Feeding rate and food refusal rate From Table 1, we can see that after wheat was mixed with bird-repellent compound fertilizer, the sparrow's refusal rate was greater than 75.0%, the magpie's refusal rate was greater than 75.4%, and the pigeon's refusal rate was greater than 75.1%. Figure 1-3 It can be seen that after wheat and the bird-repellent compound fertilizer are mixed, the feeding refusal rate of sparrows, magpies and pigeons does not decrease much from 12 hours to 96 hours. It can be seen that the bird-repellent compound fertilizer prepared by the present invention has a significant bird-repellent effect, a long action time, and can effectively reduce birds' feeding on crop seeds.

[0045] Experimental Example 2 The rice was mixed with the bird repellent compound fertilizer of Examples 1-7 at a mass ratio of 1:2, and the repellent effect was tested within 96 hours, which were recorded as experimental groups 1-7. The rice was mixed with the compound fertilizer prepared without the bird repellent composition at a mass ratio of 1:2, and the repellent effect was tested within 96 hours, which was recorded as the control group.

[0046] The specific method is: raise magpies, sparrows, pigeons, etc. in a greenhouse, feed them rice regularly, and measure the average food intake of a single bird. Record the weight difference before and after feeding, calculate the feeding rate and food refusal rate, repeat the experiment three times, and calculate the average value.

[0047] Among them, feeding rate = (original weight - remaining weight after feeding) / original weight * 100%; Feed refusal rate = (CK feeding rate - treatment feeding rate) / CK feeding rate * 100%.

[0048] Table 2. Feeding rate and food refusal rate From Table 2, we can see that after rice is mixed with bird-repellent compound fertilizer, the refusal rate of sparrows is greater than 76.2%, the refusal rate of magpies is greater than 75.7%, and the refusal rate of pigeons is greater than 75.0%. Figure 4-6 It can be seen that after the rice and the bird-repellent compound fertilizer are mixed, the feeding refusal rate of sparrows, magpies and pigeons does not decrease much from 12 hours to 96 hours. It can be seen that the bird-repellent compound fertilizer prepared by the present invention has a significant bird-repellent effect, a long action time, and can effectively reduce the feeding of birds on crop seeds.

[0049] Experimental Example 3 The corn was mixed with the bird repellent compound fertilizer of Examples 1-7 at a mass ratio of 1:2, and the repellent effect was tested within 96 hours, recorded as experimental groups 1-7, and the corn was mixed with the compound fertilizer prepared without the bird repellent composition at a mass ratio of 1:2, and the repellent effect was tested within 96 hours, recorded as the control group.

[0050] The specific method is: raise magpies, sparrows, pigeons, etc. in a greenhouse, feed corn regularly, and measure the average food intake of a single bird. Record the weight difference before and after feeding, calculate the feeding rate and refusal rate, repeat the experiment three times, and calculate the average value.

[0051] Among them, feeding rate = (original weight - remaining weight after feeding) / original weight * 100%; Feed refusal rate = (CK feeding rate - treatment feeding rate) / CK feeding rate * 100%.

[0052] Table 3. Feeding rate and food refusal rate From Table 3, we can see that after corn is mixed with bird-repellent compound fertilizer, the sparrow's refusal rate is greater than 75.0%, the magpie's refusal rate is greater than 75.8%, and the pigeon's refusal rate is greater than 75.0%. Figure 7-9 It can be seen that after the corn and the bird-repellent compound fertilizer are mixed, the feeding refusal rate of sparrows, magpies and pigeons does not decrease much from 12 hours to 96 hours. It can be seen that the bird-repellent compound fertilizer prepared by the present invention has a significant bird-repellent effect, a long action time, and can effectively reduce birds' feeding on crop seeds.

[0053] Example 4 Study on sterilization of bird-repellent compound fertilizer Table 4. Tested pathogens Preparation of bird-repellent compound fertilizer samples: Weigh the bird-repellent compound fertilizer and prepare solutions with concentrations of 0 g / L, 10 g / L, 8 g / L, 5 g / L, and 1 g / L, respectively, and then sterilize them under high pressure.

[0054] Preparation of poisoned culture medium: Add the prepared sample into PDA culture medium, set three replicates for each concentration treatment, and use pure PDA culture medium as the control, for a total of 5 treatments.

[0055] Inoculation: Pour the infected culture medium into a plate, inoculate the bacterial cake after the plate has cooled, seal it and culture it at 28℃ for 72h-120h, measure the colony diameter using the cross method and calculate the inhibition rate.

[0056] Colony pure diameter = colony total diameter - cake diameter; Inhibition rate (%) = (pure diameter of control colonies - pure diameter of treated colonies) / pure diameter of control colonies * 100%.

[0057] Table 5. Inhibition of mycelial growth of different pathogens It can be seen from Table 5 that different concentrations of bird-repellent compound fertilizers have different degrees of influence on the activity of different pathogens, but all have inhibitory activity on seven different types of pathogens, indicating that the bird-repellent compound fertilizer of the present invention has a certain broad-spectrum bactericidal effect and can protect seeds from germination and normal growth.

[0058] Experimental Example 5 Study on the acute toxicity of bird-repellent compound fertilizer As a repellent, the principle and goal of bird repellent compound fertilizer is that it should have high repellency, the bird refusal rate should reach more than 75%, it should be harmless to crops, fruits and plants, it should not pollute the environment, it should not harm birds and beneficial organisms, and it should be safe for humans and animals. Since this bird repellent compound fertilizer is applied at the bottom or sown with seeds and fertilizers, it is more representative to dilute the bird repellent compound fertilizer with water at a ratio of 1g:2mL for acute inhalation toxicity test.

[0059] The experimental animals were healthy adult rats, half female and half male, weighing 180-220 grams. All animals were adaptively fed for 5 days before the experiment, with free access to water and food. The static poisoning method was used, and the experimental animals were placed in a sealed container (poisoning cabinet) of a certain volume, 10g of bird-repellent compound fertilizer was selected, 20mL of deionized water was added to dissolve it, and it was completely atomized in the poisoning cabinet through an atomizer to reach the required concentration, and the inhalation poisoning lasted for 2 hours.

[0060] Preliminary study: 6 rats, half female and half male, dosed at 10000 mg / m 3 , observe the poisoning symptoms and mortality of rats within 24 hours, and estimate the possible range of LC50.

[0061] Formal test: 20 rats, half male and half female. The dose was set at 10000 mg / m 3 The dose is inhaled for 2 hours, and the poisoning symptoms and deaths of animals are observed within 14 days to determine the LC50 range.

[0062] Result: 10000 mg / m 3 After inhalation of the dose, rats showed no obvious symptoms of poisoning and no deaths. After the observation period, the surviving rats were dissected and no obvious abnormalities were found in the heart, lungs, liver, spleen, stomach, intestines and other organs. The acute inhalation LC50 (2h) of the bird-repellent compound fertilizer for rats was greater than 10,000 mg / m 3 The results of the toxicity experiments are shown in Table 6.

[0063] Table 6. Results of acute inhalation toxicity test of bird-repellent compound fertilizer on rats From Table 6, we can see that the acute inhalation LC50 (2h) of bird-repellent compound fertilizer for rats is greater than 10000 mg / m 3 According to the Technical Specifications for Chemical Toxicity Identification (2005 Edition) of my country, the acute inhalation LC50 (2h) of the test substance bird-repellent compound fertilizer in rats is greater than 10000 mg / m 3 , which is non-toxic.

Claims

1. A bird-repellent compound fertilizer with triple functions, Features: Calculated by weight percentage, the composition includes: 0.1-10% bird repellent, 0.01-10% stabilizer, 60-80% fertilizer carrier and 0.1-20% granulating agent.

2. The bird-repelling compound fertilizer with triple functions according to claim 1, Features: The bird repellent is one or more of 2-propyl-2-naphthoate, eugenol or eucalyptol; When the bird repellent has one ingredient, the added amount is 0.1-5%. When the bird repellent has two or three ingredients, the total amount added is 0.1-10%.

3. The bird-repelling compound fertilizer with triple functions according to claim 1, Features: The stabilizer is one or more of 2,4-dimethyl-6-tert-butylphenol or tea polyphenols; When the stabilizer has one component, the added amount is 0.01-3%. When the stabilizer has two components, the total amount added is 0.01-10%.

4. The bird-repelling compound fertilizer with triple functions according to claim 1, Features: The fertilizer carrier is one or more of urea, monoammonium phosphate, potassium chloride, potassium sulfate, ammonium sulfate or ammonium carbonate; When the fertilizer carrier has one component, the added amount is 60-70%, among which, when the fertilizer carrier is ammonium sulfate or ammonium carbonate, the added amount is 60-65%; when the fertilizer carrier has two or more components, the total added amount is 60-80%.

5. The bird-repellent compound fertilizer with triple functions according to claim 1, Features: The granulating agent is one or more of polyvinyl alcohol, kaolin or modified cellulose; When the granulating agent has one component, the added amount is 0.1-10%, and when the granulating agent has two or three components, the total amount added is 0.1-20%.

6. A method for preparing the bird-repellent compound fertilizer with triple functions as claimed in claim 1, Features: Here are the steps: (1) Mix the bird repellent and water evenly; (2) adding a stabilizer to the mixture obtained in step (1) and mixing uniformly; (3) adding the fertilizer carrier to the mixture obtained in step (2) and mixing evenly; (4) Adding the granulating agent to the mixture obtained in step (3), mixing thoroughly, granulating, drying and screening to obtain a bird-repellent compound fertilizer.

7. The preparation method of the bird-repellent compound fertilizer with triple functions according to claim 6, Features: In step (1), the amount of water added is 5% of the total weight of the bird repellent, stabilizer, fertilizer carrier and granulating agent.

8. The method for preparing the bird-repellent compound fertilizer with triple functions according to claim 6 or 7, Features: In step (4), the granulation method is any one of roller or extrusion; the drying temperature is 50-100°C, and the drying time is 30-90min; the sieved particle size is 2000-4000um, and the product outside the sieved particle size requirement is crushed and returned to step (4) for re-granulation.

9. The method for preparing the bird-repellent compound fertilizer with triple functions according to claim 8, Features: In step (4), the moisture content of the particles of the bird-repellent compound fertilizer is ≤3%.

10. A method for using the bird-repellent compound fertilizer with triple functions as claimed in claim 1: applying the bird-repellent compound fertilizer with triple functions to the bottom of the soil or sowing it with seeds and fertilizers, in, The mass ratio of the bird-repellent compound fertilizer to seeds is (2-4):1.

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