Pellet material formula and pellet processing method for beet seeds

Abstract

The invention discloses a pelleting material formula for beet seeds and a pellet processing method, wherein the pelleting material formula for beet seeds comprises a pelleting powder A, an adhesive B and a nutrient C in a weight ratio of (96-99): (0.8-1): (0.8-1). The pellet processing method for beet seeds comprises the following steps: S1: selecting seeds; S2: initiation; S3: pelleting; S4: pellet classification; S5: drying; S6: coating. Advantages: By adjusting the pelleting material formula for beet seeds and optimizing the ratio of powder and adhesive, the adhesion of the pelleting material can be improved, and a uniform covering layer can be formed on the surface of the seeds, so as to improve the granulation rate of beet pellet seeds and enhance the granulation speed, while ensuring high granulation strength, no agglomeration and moisture return, uniform particles and smooth surface; and the ratio of the nutrient is determined according to the nutrition required by the beet seeds, so as to improve the disease and insect resistance, the emergence rate of beet pellet seeds and promote plant growth.

Description

Technical Field

[0001] The invention relates to the technical field of beet seed pelleting, in particular to a beet seed pelleting material formula and a pelleting method. Background Art

[0002] Seed pelleting is a pre-sowing treatment technology. After the seeds are pelleted before sowing, they can prevent diseases to a certain extent, enhance seed resistance, improve seed quality, ensure uniform and strong seedlings and other functions. Seed pelleting technology refers to a series of processing, including cleaning, polishing, grading and selection, priming, pellet coating, etc., to make the seed particle size uniform and greatly improve its germination rate. The pelleted seeds are round and smooth, and of uniform size, which is suitable for mechanized precision sowing and field management. After sowing, the pelleted seeds can absorb the moisture in the soil around the soil, and the plants can germinate under limited moisture conditions. At present, seed pelleting technology has been widely used in many crops, such as sorghum and nightshade, but the beet seed pelleting method is still relatively rare. This is mainly because the seed shell of beet seeds is woody, thick and hard, and irregular in shape, resulting in relatively weak germination ability. Therefore, the emergence rate of direct sowing of beet seeds is generally low, only about 60-70%, or even lower. This characteristic makes it difficult to apply conventional seed pelleting methods to sugar beet seeds, posing a major challenge to current technology applications.

[0003] Patent CN111084181A discloses a pelletizing formula and processing method for beet seeds. The pelletizing formula for beet seeds has the following problems: (1) Inconsistent cracking conditions: some of the materials in the pellet powder are relatively large (such as 57 parts of pure poplar wood powder with a mesh size of 120 inert filler), which will lead to insufficient and uneven mixing of the materials in the pellet powder, affecting the consistency of the pellet cracking. Usually, when encountering water, some pellets take a short time to crack, some take a long time, and some are in a cracked state. At the same time, the powder lacks materials that can improve air permeability, which affects the respiration of the seeds, making the seeds unable to germinate normally, germinating unevenly, and germinating inconsistently and with poor uniformity; (2) The germination of seeds after pelleting has strict requirements on moisture: Germination experiments under different moisture conditions show that the pelletized beet seeds are tested in a national standard beet germination box in accordance with national standards. The germination condition is good only under 25 ml moisture, while the moisture condition of the national standard germination experiment is 30-32 ml; (3) The formula contains manganese sulfate: manganese sulfate will pollute the soil and damage the environment, and is not suitable as an additive. Summary of the invention

[0004] The first object of the present invention is to provide a pelleting material formula for beet seeds.

[0005] The second object of the present invention is to provide a method for pelletizing beet seeds.

[0006] The first object of the present invention is implemented by the following technical scheme: a pelletizing material formula for beet seeds, characterized in that it comprises a pelletizing powder A, an adhesive B and a nutrient C in a weight ratio of (96-99): (0.8-1): (0.8-1), wherein the pelletizing powder A comprises 15-22 parts of 325-mesh talc, 8-15 parts of 325-mesh limestone, 12-15 parts of 325-mesh pumice powder, 4-9 parts of 325-mesh bentonite, 10-25 parts of 325-mesh white clay, 15-25 parts of 325-mesh wood powder, 3-11 parts of 200-mesh kaolin and 1-2 parts of pearl powder; the adhesive B is prepared by mixing 0.3-0.8 g of gum arabic and 0.3-0.8 g of ethylene polymer per 80-120 ml of water; the nutrient C is prepared by mixing 18-22 parts of potassium nitrate per 900-1100 ml of water. g, 1-3 g zinc sulfate, 28-32 g potassium dihydrogen phosphate, 0.2-0.8 g boric acid and 8-12 g carbendazim are mixed.

[0007] The second object of the present invention is implemented by the following technical scheme: a beet seed pellet processing method, which comprises the following steps:

[0008] S1: Selected seeds

[0009] The sugar beet seeds are first polished, then screened to obtain basic seeds with a particle size of 2.0-3.0 mm, and then air-selected and gravity-selected to ensure that the kernel splitting rate of qualified seeds reaches more than 98% and the seed purity reaches more than 99%;

[0010] S2: Trigger

[0011] The basic seeds obtained in S1 are primed with a priming solution, and then dried at 24°C to make the moisture content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds;

[0012] S3: Pelletization

[0013] The pelletized powder A, the binder B, the nutrient C and the priming seeds are added into a pelletizer to prepare pelletized seeds, wherein the weight ratio of the priming seeds to the pelletized powder A is 1:(2.0-2.5)

[0014] S4: Pellet classification

[0015] The pelletized seeds obtained in S3 were screened and graded, and the pelletized seeds with a diameter of 3.5-4.75 mm were qualified seeds;

[0016] S5: Drying

[0017] Drying the qualified seeds obtained in S4 to reduce the moisture content of the pelletized seeds to below 12%, thereby obtaining seed pellets;

[0018] S6: Coating

[0019] The seed pellets obtained in S5 are coated with a coating agent and then dried to obtain finished seed pellets.

[0020] Furthermore, the specific process of S2 is as follows:

[0021] S2-1: Prepare 100 mg / L salicylic acid or 200 mg / L gibberellin as the triggering solution for standby use;

[0022] S2-2: The basic seeds obtained in S1 are immersed in the priming solution prepared in S2-1 at a weight ratio of 1:8 for priming. During the priming process, the ambient temperature is 10-20°C and the humidity is 60-70%. After 8-10 hours of priming, the seeds are removed and the water is drained;

[0023] S2-3: Dry the drained seeds at 24°C to make the moisture content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds.

[0024] Furthermore, in S2-1, 4.0 g / L calcium chloride is added to the prepared salicylic acid, and 2.0 g / L potassium hydroxide is added to the prepared gibberellin.

[0025] Furthermore, the S5 adopts staged drying: the first stage is drying at 30°C for 20 min, the second stage is drying at 28°C for 20 min, and the third stage is drying at 26°C for 10 min.

[0026] Furthermore, the specific process of S3 is as follows:

[0027] S3-1: First, place the priming seeds in the pellet machine, start the pellet machine, and the pellet barrel starts to rotate;

[0028] S3-2: first spray the atomized binder B, then add the pelletized powder A, and finally spray the nutrient C, repeating the process in small amounts multiple times until the particle size of the pellets meets the predetermined requirements;

[0029] S3-3: After the seed particle size meets the predetermined requirements, stop spraying the adhesive B and the nutrient C, then add the pelletizing powder A, and then polish the pellets to obtain pelletized seeds.

[0030] Furthermore, in the process of S3-2, as the pellets become larger, the amount of pelletizing powder A added and the amount of adhesive B and nutrient C sprayed in are gradually reduced, and the rotation speed of the pellet barrel is gradually increased.

[0031] Furthermore, in S4, the pelletized seeds with a diameter less than 3.5 mm continue to repeat the processing of S3.

[0032] Furthermore, in S4, the pelletized seeds with a diameter greater than 4.75 mm are washed with water and then dried, and then the processing process of S3 is repeated.

[0033] The invention has the following advantages: by adjusting the pelleting material formula of the beet seed and optimizing the ratio of the powder and the adhesive, the adhesion of the pelleting material can be improved, so that a uniform covering layer is formed on the surface of the seed, so as to improve the granulation rate of the beet pellet seeds and enhance the granulation speed, while ensuring high granulation strength, no agglomeration and moisture, uniform particles and smooth surface; and the ratio of the nutrient agent is determined according to the nutrition required by the beet seeds, so as to improve the disease and insect resistance, the emergence rate of the beet pellet seeds, promote plant growth and enhance the overall stress resistance of the plants; the finished seed pellets prepared by the invention have high strength and good storage stability. DETAILED DESCRIPTION

[0034] Example 1: A pelleting material formula for beet seeds, comprising pelleting powder A, binder B and nutrient C in a weight ratio of 96:0.8:0.8.

[0035] The pelletized powder A comprises 15 g of 325-mesh talc, 8 g of 325-mesh limestone, 12 g of 325-mesh pumice powder, 4 g of 325-mesh bentonite, 10 g of 325-mesh white clay, 15 g of 325-mesh wood powder, 3 g of 200-mesh kaolin and 1 g of pearl powder;

[0036] The adhesive B is prepared by mixing 0.3 g of gum arabic and 0.3 g of ethylene polymer per 80 ml of water;

[0037] The nutrient agent C is prepared by mixing 18 g of potassium nitrate, 1 g of zinc sulfate, 28 g of potassium dihydrogen phosphate, 0.2 g of boric acid and 8 g of carbendazim per 900 ml of water.

[0038] Example 2: A pelletized material formula for beet seeds, comprising pelletized powder A, binder B and nutrient C in a weight ratio of 99:1:1, wherein:

[0039] The pelletized powder A comprises 22 g of 325-mesh talc, 15 g of 325-mesh limestone, 15 g of 325-mesh pumice powder, 9 g of 325-mesh bentonite, 25 g of 325-mesh white clay, 25 g of 325-mesh wood powder, 11 g of 200-mesh kaolin and 2 g of pearl powder;

[0040] The adhesive B is prepared by mixing 0.8 g of gum arabic and 0.8 g of ethylene polymer per 120 ml of water;

[0041] The nutrient agent C is prepared by mixing 22 g of potassium nitrate, 3 g of zinc sulfate, 32 g of potassium dihydrogen phosphate, 0.8 g of boric acid and 12 g of carbendazim per 1100 ml of water.

[0042] Example 3: A pelletized material formula for beet seeds, comprising pelletized powder A, binder B and nutrient C in a weight ratio of 97:0.9:0.9, wherein:

[0043] The pelletized powder A comprises 18 g of 325-mesh talc, 12 g of 325-mesh limestone, 13 g of 325-mesh pumice powder, 6 g of 325-mesh bentonite, 18 g of 325-mesh white clay, 20 g of 325-mesh wood powder, 7 g of 200-mesh kaolin and 1.5 g of pearl powder;

[0044] The adhesive B is prepared by mixing 0.5 g of gum arabic and 0.5 g of ethylene polymer per 100 ml of water;

[0045] The nutrient agent C is prepared by mixing 20 g of potassium nitrate, 2 g of zinc sulfate, 30 g of potassium dihydrogen phosphate, 0.5 g of boric acid and 10 g of carbendazim per 1000 ml of water.

[0046] Embodiment 4: A method for pelletizing beet seeds using the beet seed pelletizing material formula of embodiment 1, comprising the following steps:

[0047] S1: Selected seeds

[0048] The sugar beet seeds are first polished, then screened to obtain basic seeds with a particle size of 2.0-3.0 mm, and then air-selected and gravity-selected to ensure that the kernel splitting rate of qualified seeds reaches more than 98% and the seed purity reaches more than 99%;

[0049] S2: Trigger

[0050] The basic seeds obtained in S1 are primed with a priming solution; then, the seeds are dried at 24°C to make the water content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds;

[0051] The specific process of S2 is:

[0052] S2-1: Prepare 100 mg / L salicylic acid as the triggering solution;

[0053] S2-2: The basic seeds obtained in S1 were immersed in the priming solution prepared in S2-1 at a weight ratio of 1:8 for priming. The ambient temperature during the priming process was 15°C and the humidity was 60%. After 12 hours of priming, the seeds were removed and the water was drained.

[0054] S2-3: Dry the drained seeds at 24°C to make the moisture content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds.

[0055] In the S2-1, 4 g / L calcium chloride is added to the prepared salicylic acid.

[0056] S3: Pelletization

[0057] Adding pelletized powder A, adhesive B, nutrient C and priming seeds into a pelletizer to prepare pelletized seeds, wherein the weight ratio of the priming seeds to the pelletized powder A is 1:2;

[0058] S3-1: First, place the priming seeds in the pellet machine, start the pellet machine, and the pellet barrel starts to rotate;

[0059] S3-2: first spray the atomized binder B, then add the pelletized powder A, and finally spray the nutrient C, repeating the process in small amounts multiple times until the particle size of the pellets meets the predetermined requirements;

[0060] S3-3: After the seed particle size meets the predetermined requirements, stop spraying the adhesive B and the nutrient C, then add the pelletizing powder A, and then polish the pellets to obtain pelletized seeds.

[0061] In the process of S3-2, as the pellets become larger, the amount of pelletizing powder A added and the amount of adhesive B and nutrient C sprayed are gradually reduced, and the rotation speed of the pellet barrel is gradually increased.

[0062] S4: Pellet classification

[0063] The pelletized seeds obtained in S3 were screened and graded, and the pelletized seeds with a diameter of 3.5-4.75 mm were qualified seeds;

[0064] For pelletized seeds with a diameter less than 3.5 mm, continue to repeat the treatment process of S3.

[0065] The pelletized seeds with a diameter greater than 4.75 mm were washed with water and dried, and then the process of S3 was repeated.

[0066] S5: Drying

[0067] Drying the qualified seeds obtained in S4 to obtain seed pellets;

[0068] The S5 adopts staged drying: the first stage is drying at 30°C for 20 min, the second stage is drying at 28°C for 20 min, and the third stage is drying at 26°C for 10 min.

[0069] S6: Coating

[0070] The seed pellets obtained in S5 are coated with a coating agent and then dried to obtain finished seed pellets.

[0071] Embodiment 5: A method for pelletizing beet seeds using the beet seed pelletizing material formula of embodiment 2, comprising the following steps:

[0072] S1: Selected seeds

[0073] The sugar beet seeds are first polished, then screened to obtain basic seeds with a particle size of 2.0-3.0 mm, and then air-selected and gravity-selected to ensure that the kernel splitting rate of qualified seeds reaches more than 98% and the seed purity reaches more than 99%;

[0074] S2: Trigger

[0075] The basic seeds obtained in S1 are primed with a priming solution; then, the seeds are dried at 24°C to make the water content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds;

[0076] The specific process of S2 is:

[0077] S2-1: Prepare 200 mg / L of gibberellin as a triggering solution for standby use;

[0078] S2-2: The basic seeds obtained in S1 were immersed in the priming solution prepared in S2-1 at a weight ratio of 1:8 for priming. The ambient temperature during the priming process was 19°C and the humidity was 70%. After 8 hours of priming, the seeds were removed and the water was drained.

[0079] S2-3: Dry the drained seeds at 24°C to make the moisture content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds.

[0080] In the S2-1, 2.0 g / L potassium hydroxide is added to the prepared gibberellin.

[0081] S3: Pelletization

[0082] Adding pelletized powder A, adhesive B, nutrient C and priming seeds into a pelletizer to prepare pelletized seeds, wherein the weight ratio of the priming seeds to the pelletized powder A is 1:2.5;

[0083] S3-1: First, place the priming seeds in the pellet machine, start the pellet machine, and the pellet barrel starts to rotate;

[0084] S3-2: first spray the atomized binder B, then add the pelletized powder A, and finally spray the nutrient C, repeating the process in small amounts multiple times until the particle size of the pellets meets the predetermined requirements;

[0085] S3-3: After the seed particle size meets the predetermined requirements, stop spraying the adhesive B and the nutrient C, then add the pelletizing powder A, and then polish the pellets to obtain pelletized seeds.

[0086] In the process of S3-2, as the pellets become larger, the amount of pelletizing powder A added and the amount of adhesive B and nutrient C sprayed are gradually reduced, and the rotation speed of the pellet barrel is gradually increased.

[0087] S4: Pellet classification

[0088] The pelletized seeds obtained in S3 were screened and graded, and the pelletized seeds with a diameter of 3.5-4.75 mm were qualified seeds;

[0089] For pelletized seeds with a diameter less than 3.5 mm, continue to repeat the treatment process of S3.

[0090] The pelletized seeds with a diameter greater than 4.75 mm were washed with water and dried, and then the process of S3 was repeated.

[0091] S5: Drying

[0092] Drying the qualified seeds obtained in S4 to obtain seed pellets;

[0093] The S5 adopts staged drying: the first stage is drying at 30°C for 20 min, the second stage is drying at 28°C for 20 min, and the third stage is drying at 26°C for 10 min.

[0094] S6: Coating

[0095] The seed pellets obtained in S5 are coated with a coating agent and then dried to obtain finished seed pellets.

[0096] Example 6: A method for pelletizing beet seeds using the beet seed pelletizing material formula of Example 3, comprising the following steps:

[0097] S1: Selected seeds

[0098] The sugar beet seeds are first polished, then screened to obtain basic seeds with a particle size of 2.0-3.0 mm, and then air-selected and gravity-selected to ensure that the kernel splitting rate of qualified seeds reaches more than 98% and the seed purity reaches more than 99%;

[0099] S2: Trigger

[0100] The basic seeds obtained in S1 are primed with a priming solution; then, the seeds are dried at 24°C to make the water content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds;

[0101] The specific process of S2 is:

[0102] S2-1: Prepare 200 mg / L of gibberellin as a triggering solution for standby use;

[0103] S2-2: The basic seeds obtained in S1 were immersed in the priming solution prepared in S2-1 at a weight ratio of 1:8 for priming. The ambient temperature during the priming process was 19°C and the humidity was 70%. After 10 hours of priming, the seeds were removed and the water was drained.

[0104] S2-3: Dry the drained seeds at 24°C to make the moisture content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds.

[0105] In the S2-1, 2.0 g / L potassium hydroxide is added to the prepared gibberellin.

[0106] S3: Pelletization

[0107] Adding pelletized powder A, adhesive B, nutrient C and priming seeds into a pelletizer to prepare pelletized seeds, wherein the weight ratio of the priming seeds to the pelletized powder A is 1:2.2;

[0108] S3-1: First, place the priming seeds in the pellet machine, start the pellet machine, and the pellet barrel starts to rotate;

[0109] S3-2: first spray the atomized binder B, then add the pelletized powder A, and finally spray the nutrient C, repeating the process in small amounts multiple times until the particle size of the pellets meets the predetermined requirements;

[0110] S3-3: After the seed particle size meets the predetermined requirements, stop spraying the adhesive B and the nutrient C, then add the pelletizing powder A, and then polish the pellets to obtain pelletized seeds.

[0111] In the process of S3-2, as the pellets become larger, the amount of pelletizing powder A added and the amount of adhesive B and nutrient C sprayed are gradually reduced, and the rotation speed of the pellet barrel is gradually increased.

[0112] S4: Pellet classification

[0113] The pelletized seeds obtained in S3 were screened and graded, and the pelletized seeds with a diameter of 3.5-4.75 mm were qualified seeds;

[0114] For pelletized seeds with a diameter less than 3.5 mm, continue to repeat the treatment process of S3.

[0115] The pelletized seeds with a diameter greater than 4.75 mm were washed with water and dried, and then the process of S3 was repeated.

[0116] S5: Drying

[0117] Drying the qualified seeds obtained in S4 to obtain seed pellets;

[0118] The S5 adopts staged drying: the first stage is drying at 30°C for 20 min, the second stage is drying at 28°C for 20 min, and the third stage is drying at 26°C for 10 min.

[0119] S6: Coating

[0120] The seed pellets obtained in S5 are coated with a coating agent and then dried to obtain finished seed pellets.

[0121] The compressive strength of the finished seed pellets and basic seeds obtained in Examples 4 to 6 was tested, and the test results are shown in Table 1:

[0122] Table 1 Performance test of basic seeds and finished seed pellets

[0123]

[0124] The present invention can improve the adhesion of the pelletized material by selecting a suitable ratio of pelletized powder A, so that a uniform covering layer is formed on the surface of the seed, with a high granulation rate, and at the same time ensure that the granulation strength is high, no caking and moisture return, the particles are uniform, and the surface is smooth; and by adding a proper amount of white clay as a reinforcing agent, optimizing the ratio of water to fillers such as gum arabic and ethylene polymer in the adhesive, the mechanical strength of the pelletized seeds is improved, and the average compressive strength can reach 10.8N or more, so that it is more resistant to friction and extrusion during mechanical sowing and not easy to break; the present invention increases the mesh number of wood powder particles, reduces the proportion of wood powder as much as possible, thereby reducing moisture absorption, so as to enhance the storage stability of the pelletized material and extend its service life. The present invention can improve the solubility control of the adhesive by a suitable ratio of the adhesive B, so that the pelletized material can be timely broken when it encounters water in the soil, ensuring uniform germination of the seeds, and the germination rate in 3d can be 94% or more, ensuring the germination rate of the seeds and the uniformity of seed emergence. Nutrient C is prepared according to the nutrients required by the seeds, and nutrients and fungicides are added to improve disease and insect resistance, increase the emergence rate of beet pelleted seeds, promote plant growth, and enhance the overall stress resistance of plants. The salt stress of Examples 4 to 6 is below 150mmol / L, indicating that the beet seed pelleting according to this scheme can significantly improve the stress resistance of beet pelleted seeds under salt stress.

[0125] The finished seed pellets obtained in Examples 4 to 6 and the sugar beet seeds of CN111084181A mentioned in the background technology were respectively subjected to germination rate experiments under different moisture gradients. The experimental results are shown in Table 2:

[0126] Table 2 Germination of pelleted seeds under different moisture gradients (%)

[0127]

[0128] As shown in Table 2, the germination rates of the finished seed pellets obtained in Examples 4 to 5 of the present invention under the conditions of 20-40 ml of moisture were all 79% or above, especially under the conditions of 35 ml of moisture, the germination rate reached 95%, which has a high germination rate and meets the moisture conditions of the national standard germination experiment, and has stronger adaptability.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pelletized material formula for beet seeds, characterized in that: It comprises pelletized powder A, adhesive B and nutrient C in a weight ratio of (96-99): (0.8-1): (0.8-1), wherein the pelletized powder A comprises 15-22 parts of 325-mesh talc, 8-15 parts of 325-mesh limestone, 12-15 parts of 325-mesh pumice powder, 4-9 parts of 325-mesh bentonite, 10-25 parts of 325-mesh white clay, 15-25 parts of 325-mesh wood flour, 3-11 parts of 200-mesh kaolin and 1-2 parts of pearl powder; The adhesive B is prepared by mixing 0.3-0.8 g of gum arabic and 0.3-0.8 g of ethylene polymer per 80-120 ml of water; The nutrient agent C is prepared by mixing 18-22 g of potassium nitrate, 1-3 g of zinc sulfate, 28-32 g of potassium dihydrogen phosphate, 0.2-0.8 g of boric acid and 8-12 g of carbendazim per 900-1100 ml of water.

2. A method for pelletizing beet seeds using the beet seed pelletizing material formula according to claim 1, characterized in that: It includes the following steps: S1: Selected seeds The sugar beet seeds are first graded and polished, and then screened to obtain basic polished seeds with a particle size of 2.0-3.0 mm, and then air-selected and gravity-selected to ensure that the kernel splitting rate of qualified seeds reaches more than 98% and the seed purity reaches more than 99%; S2: Trigger The basic seeds obtained in S1 are primed with a priming solution, and then dried at 24°C to make the moisture content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds; S3: Pelletization The pelletized powder A, the adhesive B, the nutrient C and the priming seeds are added into a pelletizer to prepare pelletized seeds, wherein the weight ratio of the priming seeds to the pelletized powder A is 1:(2.0-2.5); the specific process of S3 is: S3-1: First, place the priming seeds in the pellet machine, start the pellet machine, and the pellet barrel starts to rotate; S3-2: first spray the atomized binder B, then add the pelletized powder A, and finally spray the nutrient C, repeating the process in small amounts and multiple times until the particle size of the pellets meets the predetermined requirements; in the process of S3-2, as the pellets continue to grow larger, gradually reduce the amount of pelletized powder A added and the amount of binder B and nutrient C sprayed, and gradually increase the rotation speed of the pellet barrel; S3-3: After the seed particle size meets the predetermined requirements, the spraying of the binder B and the nutrient C is stopped, and then the pelletizing powder A is added, and then the pellets are polished to obtain pelletized seeds; S4: Pellet classification The pelletized seeds obtained in S3 were screened and graded, and the pelletized seeds with a diameter of 3.5-4.75 mm were qualified pelletized seeds; S5: Drying The qualified pelletized seeds obtained in S4 are dried to make the moisture content below 12% to obtain seed pellets; S6: Coating The seed pellets obtained in S5 are coated with a coating agent and then dried to obtain finished seed pellets.

3. A method for processing beet seed pellets using the beet seed pelletizing material formula according to claim 2, characterized in that: The specific process of S2 is: S2-1: Prepare 100 mg / L salicylic acid or 200 mg / L gibberellin as the triggering solution for standby use; S2-2: The basic seeds obtained in S1 are immersed in the priming solution prepared in S2-1 at a weight ratio of 1:8 for priming. During the priming process, the ambient temperature is 10-20°C and the humidity is 60-70%. After 8-10 hours of priming, the seeds are removed and the water is drained; S2-3: Dry the drained seeds at 24°C to make the moisture content of the seeds the same as that of the basic seeds, thereby obtaining primed seeds.

4. A method for processing beet seed pellets using the beet seed pelletizing material formula according to claim 3, characterized in that: In the S2-1, 4.0 g / L calcium chloride is added to the prepared salicylic acid, and 2.0 g / L potassium hydroxide is added to the prepared gibberellin.

5. A method for processing beet seed pellets using the beet seed pelletizing material formula according to claim 2, characterized in that: The S5 adopts staged drying: the first stage is drying at 30°C for 20 minutes, the second stage is drying at 28°C for 20 minutes, and the third stage is drying at 26°C for 10 minutes.

6. A method for processing beet seed pellets using the beet seed pelletizing material formula according to claim 2, characterized in that: In S4, the pelletized seeds with a diameter less than 3.5 mm continue to repeat the processing of S3.

7. A method for processing beet seed pellets using the beet seed pelletizing material formula according to claim 2, characterized in that: In S4, the pelletized seeds with a diameter greater than 4.75 mm are washed with water and then dried, and then the treatment process of S3 is repeated.

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