Microalgae organic fertilizer with drought resisting function and processing method thereof

Abstract

The invention relates to the technical field of fertilizer preparation, in particular to a microalgae organic fertilizer with a drought resisting function and a processing method thereof. The invention provides a microalgae organic fertilizer with a drought resisting function. The microalgae organic fertilizer is prepared from the following components in parts by mass: 20-30 parts of mixed microalgae, 90-110 parts of cow dung, 60-80 parts of sheep manure, 13-17 parts of corn straws, 3-7 parts of a fermentation inoculant, 20-30 parts of rice chaff, 10-16 parts of rape seed cakes, 30-50 parts of fruit residues, 7-11 parts of polyaspartic acid, 6-10 parts of gamma-polyglutamic acid and 3-7 parts of compound sodium nitrophenolate. The use effect of the fertilizer provided by the invention is better than that of the fertilizer in the prior art, the growth of crops can be effectively promoted, and the yield and quality of the crops are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer preparation, and in particular to a microalgae organic fertilizer with drought resistance function and a processing method thereof. Background Art

[0002] Microalgae usually refers to a general term for microorganisms that contain chlorophyll a and can perform photosynthesis, and are a type of protist. Microalgae that are cultivated or produced in large quantities using biotechnology belong to four algae phyla: Cyanobacteria, Chlorophyta, Chrysophyta, and Rhodophyta. Algae include several different types of organisms that produce energy through photosynthesis. They are generally considered to be simple plants. There are many kinds of organisms named microalgae, which have huge differences in form and span a variety of life forms. The main common point is that they live in seawater and can synthesize organic matter through their own chromatophores and photosynthesis.

[0003] Relevant literature shows that microalgae contain a variety of active substances, such as microalgae polysaccharides, phenolic polymer compounds, mannitol, betaine, indoleacetic acid, cytokinins, etc. In addition, it also contains nutrients such as nitrogen, phosphorus, potassium, magnesium, molybdenum, iodine, calcium, iron, zinc, boron, selenium, etc. There are many active substances that can promote crop growth and enhance crop resistance. However, in actual production, whether these substances can work depends on their content and existence form in the product. Since there are obvious differences in the types and quantities of the above compounds in microalgae extracts produced by different processes, they play different roles in promoting crop growth.

[0004] Patent 201510507236.9 provides a fruit-swelling microalgae organic liquid flush fertilizer and its production method. The flush fertilizer uses microalgae extracts and N, P, and K to prepare an organic liquid with a fruit-swelling function. The microalginic acid content in the flush fertilizer is 5%, gibberellin is 20ng / g, and indoleacetic acid is 30ng / g. The content of these functional substances with fruit-swelling effects is very low, and there is no active preservation technology. Whether this type of fertilizer has a fruit-swelling effect in a variety of crops still needs further research. Patent 201310603775.3 provides a method for preparing functional microalgae fertilizers by multi-bacteria co-fermentation microalgae. The patent adds licheniformis, yeast, lactic acid bacteria and actinomycetes to the microalgae powder system for fermentation, and then low-temperature drying and crushing to prepare functional microalgae fertilizers. This method mixes the metabolites of multiple bacteria together, and the product may have a certain effect, but there may be substances that inhibit and antagonize each other in the multiple metabolites, and the fertilizer effect is not ideal. It can be seen from the above-mentioned problems that there is still no breakthrough in the development of microalgae fertilizers with obvious functions, especially drought-resistant functions.

[0005] Therefore, how to reasonably process microalgae and prepare them into fertilizer components with drought resistance is a problem that technicians in this field need to solve urgently. Summary of the invention

[0006] The purpose of the present invention is to provide a microalgae organic fertilizer with drought resistance function and a processing method thereof.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0008] The invention provides a microalgae organic fertilizer with drought resistance function, which is prepared from the following components in parts by mass: 20-30 parts of mixed microalgae, 90-110 parts of cow dung, 60-80 parts of sheep dung, 13-17 parts of corn stalks, 3-7 parts of fermentation bacteria agent, 20-30 parts of rice bran, 10-16 parts of rapeseed cake, 30-50 parts of fruit residue, 7-11 parts of polyaspartic acid, 6-10 parts of gamma-polyglutamic acid and 3-7 parts of sodium nitrophenolate.

[0009] Preferably, the mixed microalgae are: Spirulina, Dunaliella salina, Chlamydomonas reinhardtii, Chlorella vulgaris and Haematococcus pluvialis, with a mass ratio of 20-26:15-19:10-16:5-9:2-6.

[0010] Preferably, the fermentation bacteria agent includes: Bacillus subtilis, Bacillus gelatinosa, lactic acid bacteria, Enterococcus faecalis and Trichoderma, and the mass ratio is 20-26:15-19:12-16:8-12:7-11.

[0011] Preferably, the bacterial content of Bacillus subtilis, Bacillus gelatinosa, lactic acid bacteria, Enterococcus faecalis and Trichoderma is 500 million to 900 million per gram.

[0012] Preferably, the fruit pomace includes apple pomace, pear pomace, orange pomace and grape pomace, and the mass ratio is 12-16:8-12:6-10:5-9.

[0013] The present invention also provides a method for processing the microalgae organic fertilizer with drought resistance, comprising the following steps:

[0014] (1) mixing fruit residue, fermentation agent and water and fermenting to obtain material 1;

[0015] (2) mixing the composite enzyme, the mixed microalgae and water for enzymolysis to obtain material 2;

[0016] (3) mixing and composting the material 1, the material 2, cow dung, sheep dung, corn stalks, rice bran and rapeseed cake to obtain the material 3;

[0017] (4) The material 3, sodium nitrophenolate, polyaspartic acid and γ-polyglutamic acid are mixed to obtain a microalgae organic fertilizer with drought resistance function.

[0018] Preferably, the mass ratio of the fruit residue to water in step (1) is 13-17:20-30.

[0019] Preferably, the fermentation time in step (1) is 30 to 40 hours, and the fermentation temperature is 36 to 42°C.

[0020] Preferably, the mass ratio of the mixed microalgae to water in step (2) is 12-16:8-12.

[0021] Preferably, the complex enzyme in step (2) includes papain, pectinase, cellulase, glucoamylase and peptidase in a mass ratio of 3-7:6-10:4-8:5-9:3-7; the enzymatic hydrolysis time is 2-4h; and the enzymatic hydrolysis temperature is 30-40°C.

[0022] Preferably, the composting time in step (3) is 7 to 9 days.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The mixed microalgae used in the present invention contains many unused biological macromolecules and other nutrients. The present invention mixes the mixed microalgae with a composite enzyme preparation, decomposes the macromolecular nutrients through enzymatic reaction, and enables them to be added and used as raw material components of fertilizers. Through enzymatic hydrolysis, the loss of active substances in the microalgae is small, and the prepared fertilizer has high fertilizer efficiency. The prepared mixed microalgae extract is rich in protein, amino acids, inorganic salts, vitamins, carbohydrates, plant hormones, polyphenols, polysaccharides and other biologically active substances, which can greatly improve the quality of crops, enhance their drought resistance, and promote the growth of plants and fruits.

[0025] 2. The polyaspartic acid added in the present invention is a fertilizer synergist. It has a chelating effect on metal ions. Polyaspartic acid can enrich nitrogen, phosphorus, potassium and trace elements to supply plants, so that crops can use fertilizers more effectively and increase crop yields. γ-Polyglutamic acid can effectively improve the dissolution, storage, transportation and absorption of fertilizers, prevent sulfate, phosphate, oxalate and metal elements from precipitating, and enable crops to more effectively absorb phosphorus, magnesium and trace elements in the soil, promoting the development of crop roots. Sodium nitrophenolate is a powerful cell activator. After contacting with plants, it can quickly penetrate into the plant body, promote the protoplasm flow of cells, improve cell vitality, and enhance the plant's resistance to drought.

[0026] 3. The fermentation agent provided by the present invention includes Bacillus subtilis, Bacillus gelatinus, lactic acid bacteria, Enterococcus faecalis and Trichoderma, which can decompose cellulose, lignin and other macromolecular substances in fruit residues, cow dung, sheep dung and corn stalks, so that plants can directly absorb and utilize them.

[0027] 4. The fertilizer provided by the present invention has better use effect than the fertilizer in the prior art, can effectively promote the growth of crops, and significantly improve the yield and quality of crops. DETAILED DESCRIPTION

[0028] The invention provides a microalgae organic fertilizer with drought resistance, which is prepared from the following components by weight: 20-30 parts of mixed microalgae, 90-110 parts of cow dung, 60-80 parts of sheep dung, 13-17 parts of corn stalks, 3-7 parts of fermentation bacteria, 20-30 parts of rice bran, 10-16 parts of rapeseed cake, 30-50 parts of fruit residue, 7-11 parts of polyaspartic acid, 6-10 parts of gamma-polyglutamic acid and 3-7 parts of sodium nitrophenolate;

[0029] Preferably, the composition is prepared from the following components in parts by weight: 22-28 parts of mixed microalgae, 94-106 parts of cow dung, 64-76 parts of sheep dung, 14-16 parts of corn stalks, 4-6 parts of fermentation bacteria, 22-28 parts of rice bran, 11-15 parts of rapeseed cake, 34-46 parts of fruit residue, 8-10 parts of polyaspartic acid, 7-9 parts of gamma-polyglutamic acid and 4-6 parts of sodium nitrophenolate;

[0030] It is further preferably prepared from the following components in parts by weight: 24-26 parts of mixed microalgae, 98-102 parts of cow dung, 68-72 parts of sheep dung, 15 parts of corn stalks, 5 parts of fermentation agent, 24-26 parts of rice bran, 12-14 parts of rapeseed cake, 38-42 parts of fruit residue, 9 parts of polyaspartic acid, 8 parts of gamma-polyglutamic acid and 5 parts of sodium nitrophenolate;

[0031] More preferably, it is prepared from the following components in parts by mass: 25 parts of mixed microalgae, 100 parts of cow dung, 70 parts of sheep dung, 15 parts of corn stalks, 5 parts of fermentation agent, 25 parts of rice bran, 13 parts of rapeseed cake, 40 parts of fruit residue, 9 parts of polyaspartic acid, 8 parts of γ-polyglutamic acid and 5 parts of sodium nitrophenolate.

[0032] In the present invention, the mixed microalgae are: Spirulina, Dunaliella salina, Chlamydomonas reinhardtii, Chlorella vulgaris and Haematococcus, with a mass ratio of 20-26:15-19:10-16:5-9:2-6; preferably 21-25:16-18:11-15:6-8:3-5; further preferably 22-24:17:12-14:7:4; more preferably 23:17:13:7:4.

[0033] In the present invention, the fermentation bacteria agent includes: Bacillus subtilis, Bacillus gelatinosa, lactic acid bacteria, Enterococcus faecalis and Trichoderma, and the mass ratio is 20-26:15-19:12-16:8-12:7-11; preferably 21-25:16-18:13-15:9-11:8-10; further preferably 22-24:17:14:10:9; more preferably 23:17:14:10:9.

[0034] In the present invention, the bacterial content of Bacillus subtilis, Bacillus gelatinosa, lactic acid bacteria, Enterococcus faecalis and Trichoderma is 500 million / g to 900 million / g, preferably 600 million / g to 800 million / g, and more preferably 800 million / g.

[0035] In the present invention, the fruit pomace includes: apple pomace, pear pomace, orange pomace and grape pomace, and the mass ratio is 12-16:8-12:6-10:5-9; preferably 13-15:9-11:7-9:6-8; further preferably 14:10:8:7.

[0036] The present invention also provides a method for processing the microalgae organic fertilizer with drought resistance, comprising the following steps:

[0037] (1) mixing fruit residue, fermentation agent and water and fermenting to obtain material 1;

[0038] (2) mixing the composite enzyme, the mixed microalgae and water for enzymolysis to obtain material 2;

[0039] (3) mixing and composting the material 1, the material 2, cow dung, sheep dung, corn stalks, rice bran and rapeseed cake to obtain the material 3;

[0040] (4) The material 3, sodium nitrophenolate, polyaspartic acid and γ-polyglutamic acid are mixed to obtain a microalgae organic fertilizer with drought resistance function.

[0041] In the present invention, the mass ratio of the fruit residue to water in step (1) is 13-17:20-30; preferably 14-16:22-28; more preferably 15:24-26; and more preferably 15:25.

[0042] In the present invention, the fermentation time in step (1) is 30 to 40 hours; preferably 32 to 38 hours; more preferably 34 to 36 hours; and more preferably 35 hours.

[0043] In the present invention, the fermentation temperature in step (1) is 36-42°C, preferably 38-40°C, and more preferably 39°C.

[0044] In the present invention, the mass ratio of the mixed microalgae to water in step (2) is 12-16:8-12; preferably 13-15:9-11; more preferably 14:9-11; more preferably 14:10.

[0045] In the present invention, the composite enzyme in step (2) includes papain, pectinase, cellulase, glucoamylase and peptidase, and the mass ratio is 3-7:6-10:4-8:5-9:3-7; preferably 4-6:7-9:4-8:5-9:3-7; further preferably 4-6:7-9:4-8:6-8:4-6; more preferably 5:8:6:7:6.

[0046] In the present invention, the enzymatic hydrolysis time in step (2) is 2 to 4 hours, preferably 3 hours.

[0047] In the present invention, the temperature of the enzymatic hydrolysis in step (2) is 30-40°C; preferably 32-38°C; more preferably 34-36°C; and more preferably 35°C.

[0048] In the present invention, the composting time in step (3) is 7 to 9 days, preferably 8 days.

[0049] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0050] Example 1

[0051] A microalgae organic fertilizer with drought resistance is prepared from the following components by mass: 20 parts of mixed microalgae, 90 parts of cow dung, 60 parts of sheep dung, 13 parts of corn stalks, 3 parts of fermentation agent, 20 parts of rice bran, 10 parts of rapeseed cake, 30 parts of fruit residue, 7 parts of polyaspartic acid, 6 parts of gamma-polyglutamic acid and 3 parts of sodium nitrophenolate;

[0052] The fermentation agent includes: Bacillus subtilis, Bacillus jelly, lactic acid bacteria, Enterococcus faecalis and Trichoderma, with a mass ratio of 20:15:12:8:7, and a bacterial content of 500 million / g;

[0053] The mixed microalgae are: Spirulina, Dunaliella salina, Chlamydomonas reinhardtii, Chlorella vulgaris and Haematococcus pluvialis, with a mass ratio of 20:15:10:5:2.

[0054] The fruit pomace includes: apple pomace, pear pomace, orange pomace and grape pomace, with a mass ratio of 12:8:6:5;

[0055] The processing method of the microalgae organic fertilizer with drought resistance function comprises the following steps:

[0056] (1) mixing fruit pomace, fermentation agent and water and fermenting at 36° C. for 30 hours to obtain material 1; the mass ratio of the fruit pomace to water is 13:20;

[0057] (2) mixing the complex enzyme, mixed microalgae and water and performing enzymolysis at 30° C. for 2 h to obtain material 2; the mass ratio of the mixed microalgae to water is 12:8;

[0058] The complex enzyme comprises papain, pectinase, cellulase, glucoamylase and peptidase in a mass ratio of 3:6:4:5:3;

[0059] (3) mixing the material 1, the material 2, cow dung, sheep dung, corn stalks, rice bran and rapeseed cake and composting for 7 days to obtain the material 3;

[0060] (4) The material 3, sodium nitrophenolate, polyaspartic acid and γ-polyglutamic acid are mixed to obtain a microalgae organic fertilizer with drought resistance function.

[0061] Example 2

[0062] A microalgae organic fertilizer with drought resistance is prepared from the following components by mass: 30 parts of mixed microalgae, 110 parts of cow dung, 80 parts of sheep dung, 17 parts of corn stalks, 7 parts of fermentation agent, 30 parts of rice bran, 16 parts of rapeseed cake, 50 parts of fruit residue, 11 parts of polyaspartic acid, 10 parts of gamma-polyglutamic acid and 7 parts of sodium nitrophenolate;

[0063] The fermentation bacteria agent includes: Bacillus subtilis, Bacillus jelly, lactic acid bacteria, Enterococcus faecalis and Trichoderma, with a mass ratio of 26:19:16:12:11, and a bacterial content of 900 million / g;

[0064] The mixed microalgae are: Spirulina, Dunaliella salina, Chlamydomonas reinhardtii, Chlorella vulgaris and Haematococcus pluvialis, with a mass ratio of 26:19:16:9:6;

[0065] The fruit pomace includes: apple pomace, pear pomace, orange pomace and grape pomace, with a mass ratio of 16:12:10:9;

[0066] The processing method of the microalgae organic fertilizer with drought resistance function comprises the following steps:

[0067] (1) mixing fruit pomace, fermentation agent and water at 42° C. and fermenting for 40 hours to obtain material 1; the mass ratio of the fruit pomace to water is 17:30;

[0068] (2) mixing the complex enzyme, mixed microalgae and water and performing enzymolysis at 40° C. for 4 hours to obtain material 2; the mass ratio of the mixed microalgae to water is 16:12;

[0069] The complex enzyme includes papain, pectinase, cellulase, glucoamylase and peptidase in a mass ratio of 7:10:8:9:7;

[0070] (3) mixing the material 1, the material 2, cow dung, sheep dung, corn stalks, rice bran and rapeseed cake and composting for 9 days to obtain the material 3;

[0071] (4) The material 3, sodium nitrophenolate, polyaspartic acid and γ-polyglutamic acid are mixed to obtain a microalgae organic fertilizer with drought resistance function.

[0072] Example 3

[0073] A microalgae organic fertilizer with drought resistance is prepared from the following components by mass: 25 parts of mixed microalgae, 100 parts of cow dung, 70 parts of sheep dung, 15 parts of corn stalks, 5 parts of fermentation agent, 25 parts of rice bran, 13 parts of rapeseed cake, 40 parts of fruit residue, 9 parts of polyaspartic acid, 8 parts of gamma-polyglutamic acid and 5 parts of sodium nitrophenolate;

[0074] The fermentation bacteria agent includes: Bacillus subtilis, Bacillus jelly, lactic acid bacteria, Enterococcus faecalis and Trichoderma, with a mass ratio of 23:17:14:10:9, and a bacterial content of 700 million / g;

[0075] The mixed microalgae are: Spirulina, Dunaliella salina, Chlamydomonas reinhardtii, Chlorella vulgaris and Haematococcus pluvialis, with a mass ratio of 23:17:13:7:4;

[0076] The fruit pomace includes: apple pomace, pear pomace, orange pomace and grape pomace, with a mass ratio of 14:10:8:7;

[0077] The processing method of the microalgae organic fertilizer with drought resistance function comprises the following steps:

[0078] (1) mixing fruit pomace, fermentation agent and water and fermenting at 39° C. for 35 hours to obtain material 1; the mass ratio of the fruit pomace to water is 15:25;

[0079] (2) mixing the complex enzyme, mixed microalgae and water and performing enzymolysis at 35° C. for 3 h to obtain material 2; the mass ratio of the mixed microalgae to water is 14:10;

[0080] The complex enzyme includes papain, pectinase, cellulase, glucoamylase and peptidase in a mass ratio of 5:8:6:7:5;

[0081] (3) mixing the material 1, the material 2, cow dung, sheep dung, corn stalks, rice bran and rapeseed cake and composting for 8 days to obtain the material 3;

[0082] (4) The material 3, sodium nitrophenolate, polyaspartic acid and γ-polyglutamic acid are mixed to obtain a microalgae organic fertilizer with drought resistance function.

[0083] Experimental Example 1

[0084] An experimental plot was selected for planting experiment. The soil fertility was medium and the terrain was flat. It was evenly divided into 21 plots, and each experimental group randomly treated 3 plots. The crop planted was cucumber, and the variety was Hua Huanggua No. 4. The experimental site was located in Zhangye City, Gansu Province, with an average annual precipitation of ≤350mm, which is a semi-arid area.

[0085] Among them, the product obtained by the method of Example 3 was used as the experimental group;

[0086] Control group 1, other methods are the same as those in Example 3, except that the fruit residue is not fermented with a fermentation agent;

[0087] Control group 2, other methods were the same as those in Example 3, except that: equal mass of distilled water was used to replace Enterococcus faecalis and Trichoderma;

[0088] Control group 3, other methods were the same as Example 3, except that the mixed microalgae were not hydrolyzed by the composite enzyme;

[0089] Control group 4, other methods were the same as those in Example 3, except that: papain and pectinase were replaced with distilled water of equal mass;

[0090] Control group 5, other methods were the same as those in Example 3, except that: equal masses of distilled water were used to replace polyaspartic acid and γ-polyglutamic acid;

[0091] The existing technology group: applying three-element fertilizer, wherein the mass ratio of N, P and K is 2.100:1.000:2.669; applying fertilizer once in the seedling stage, early flowering stage and fruiting stage respectively, and the application amount is 40kg / mu.

[0092] The fertilization method of the experimental group and control group 1 to control group 5 was: topdressing once in the seedling stage, early flowering stage, and fruiting stage, and the application amount was 400kg / mu.

[0093] Except for the different fertilizers used, the other growth management methods of each test group were exactly the same. After the cucumbers were harvested, the yield and growth status of the cucumbers were investigated, and the results are shown in Tables 1 and 2.

[0094] Among them, each experimental group randomly selected 10 cucumbers, measured the weight and length of the cucumbers, and took the average value to obtain the single cucumber weight and single cucumber length data.

[0095] Among them, three plants were randomly selected in each experimental group, and the plant height, leaf number and plant diameter of the cucumber plants were measured. The average value was taken to obtain the plant height, leaf number and plant diameter data.

[0096] Table 1 Cucumber yield survey table

[0097] Yield per mu (mu / kg) Single melon weight (g) Single melon length (cm) Experimental Group 4187.5 217.6 31.1 Control group 1 3923.2 204.8 28.1 Control group 2 4014.8 207.5 29.2 Control group 3 3912.6 189.0 27.8 Control group 4 3896.5 192.3 28.3 Control group 5 4096.7 206.4 29.6 Existing Technology Group 3626.4 172.6 26.3

[0098] Table 2 Survey form for cucumber growth status

[0099] Plant height(cm) Number of blades Plant diameter(mm) Experimental Group 75.6 9.5 7.5 Control group 1 70.3 8.6 6.9 Control group 2 72.5 9.3 7.2 Control group 3 71.2 8.5 7.2 Control group 4 71.4 8.3 7.3 Control group 5 73.8 9.2 7.2 Existing Technology Group 68.4 7.3 6.8

[0100] It can be seen from the contents recorded in Table 1 and Table 2 that even under drought conditions, the fertilizer provided by the present invention can significantly improve the yield and quality of cucumbers, and the use effect of the fertilizer is better than that of the fertilizer in the prior art.

[0101] From the data of control groups 1 and 2, it can be seen that a suitable fermentation method is needed to ferment fruit residues to achieve the optimal fertilizer effect. If fermentation is not carried out or the fermentation bacteria are not used properly, the fertilizer effect will be affected.

[0102] From the data of control groups 3 and 4, it can be seen that for mixed microalgae, appropriate treatment methods are needed to maximize their effectiveness. If enzymatic hydrolysis is not performed or different types of enzymes are used, the fertilizer efficiency will be significantly affected. This is caused by the inadequate decomposition and release of nutrients in the discarded mixed microalgae. From the data of control group 5, it can be seen that whether polyaspartic acid and γ-polyglutamic acid are added also has a great impact on the fertilizer efficiency.

[0103] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A microalgae organic fertilizer with drought resistance, characterized in that: The invention is prepared from the following components in parts by weight: 20 to 30 parts of mixed microalgae, 90 to 110 parts of cow dung, 60 to 80 parts of sheep dung, 13 to 17 parts of corn stalks, 3 to 7 parts of fermentation bacteria, 20 to 30 parts of rice bran, 10 to 16 parts of rapeseed cake, 30 to 50 parts of fruit residue, 7 to 11 parts of polyaspartic acid, 6 to 10 parts of gamma-polyglutamic acid and 3 to 7 parts of sodium nitrophenolate.

2. The microalgae organic fertilizer with drought resistance according to claim 1, characterized in that: The fermentation bacteria agent comprises: Bacillus subtilis, Bacillus jelly, lactic acid bacteria, Enterococcus faecalis and Trichoderma, and the mass ratio is 20-26:15-19:12-16:8-12:7-11; the bacterial content of Bacillus subtilis, Bacillus jelly, lactic acid bacteria, Enterococcus faecalis and Trichoderma is 500 million-900 million / g.

3. The microalgae organic fertilizer with drought resistance according to claim 2, characterized in that: The mixed microalgae are: Spirulina, Dunaliella salina, Chlamydomonas reinhardtii, Chlorella vulgaris and Haematococcus pluvialis, and the mass ratio is 20-26:15-19:10-16:5-9:2-6.

4. The microalgae organic fertilizer with drought resistance according to claim 1, characterized in that: The fruit pomace includes apple pomace, pear pomace, orange pomace and grape pomace, and the mass ratio is 12-16:8-12:6-10:5-9.

5. The method for processing the microalgae organic fertilizer with drought resistance according to any one of claims 1 to 4, characterized in that: The steps include: (1) mixing fruit residue, fermentation agent and water and fermenting to obtain material 1; (2) mixing the composite enzyme, the mixed microalgae and water for enzymolysis to obtain material 2; (3) mixing and composting the material 1, the material 2, cow dung, sheep dung, corn stalks, rice bran and rapeseed cake to obtain the material 3; (4) The material 3, sodium nitrophenolate, polyaspartic acid and γ-polyglutamic acid are mixed to obtain a microalgae organic fertilizer with drought resistance function.

6. The method for processing a microalgae organic fertilizer with drought resistance according to claim 5, characterized in that: The mass ratio of the fruit residue to water in step (1) is 13-17:20-30.

7. The method for processing a microalgae organic fertilizer with drought resistance according to claim 5, characterized in that: The fermentation time of step (1) is 30 to 40 hours, and the fermentation temperature is 36 to 42°C.

8. The method for processing a microalgae organic fertilizer with drought resistance according to claim 5, characterized in that: The mass ratio of the mixed microalgae to water in step (2) is 12-16:8-12.

9. The method for processing a microalgae organic fertilizer with drought resistance according to claim 5, characterized in that: The complex enzyme in step (2) includes papain, pectinase, cellulase, glucoamylase and peptidase in a mass ratio of 3-7:6-10:4-8:5-9:3-7; the enzymolysis time is 2-4h; and the enzymolysis temperature is 30-40°C.

10. The method for processing a microalgae organic fertilizer with drought resistance according to claim 5, characterized in that: The composting time in step (3) is 7 to 9 days.