Livestock waste organic fertilizer and preparation method thereof

Abstract

The invention belongs to the field of organic fertilizer preparation, and particularly relates to a livestock waste organic fertilizer and a preparation method thereof. The pretreated waste subjected to high-temperature and high-pressure treatment is fully fermented with tupistra chinensis, elsholtzia and ammonium bicarbonate through a decomposing microbial inoculum and is mixed with cerium oxide modified by tetraethoxysilane, and the prepared livestock waste nutrient base material is efficient in effect; the phosphatidylinositol cooperates with the sodium silicate to maintain the stability of cell membranes and cell walls of plants, the water retention component contains hydrogen bonds, flavanol, phethalanilic acid mixed water retention component and a stabilizing agent, and the soil improvement particles obtained by freezing nano spray drying improve the lodging resistance of the plants; the protective solution reduces the surface tension among organic fertilizer particles, so that the particles are not easy to adhere to one another, and the livestock waste organic fertilizer prepared by mixing the soil improvement particles and the livestock waste nutrient base material is durable and efficient in effect, stable in fertilizer efficiency, easy to store and transport and capable of effectively improving the water retention capacity of soil.

Description

Technical Field

[0001] The invention belongs to the field of organic fertilizer preparation, and specifically refers to livestock waste organic fertilizer and a preparation method thereof. Background Art

[0002] Organic fertilizer, also known as farmyard manure, refers to carbon-containing materials that come from plants and animals and are applied to the soil to provide plant nutrition as its main function. It is a complete fertilizer that contains a variety of nutrients needed for crop growth, such as nitrogen, phosphorus, potassium and other large elements. These nutrients usually exist in the form of organic compounds and can be slowly absorbed and utilized by plants.

[0003] Although organic fertilizers have many advantages, they also need to be used scientifically and rationally. First of all, the nutrient content of organic fertilizers is relatively low and the fertilizer effect is slow. Therefore, in agricultural production, they usually need to be used in combination with chemical fertilizers. For example, in the early stage of crop growth, some quick-acting chemical fertilizers can be appropriately applied to meet the urgent nutrient needs of crops; and in the middle and late stages of crop growth, more organic fertilizers can be applied to provide a lasting nutrient supply. The rational use of organic fertilizers can achieve sustainable agricultural development and provide humans with better quality and safer agricultural products. As people pay more attention to environmental protection and food safety, the application prospects of organic fertilizers will become more and more broad.

[0004] At present, the existing preparation technology of organic fertilizers has the following problems: First, the existing organic fertilizers need to be decomposed to release nutrients, which cannot quickly meet the crops' demand for large amounts of nutrients at a specific growth stage, and their effects are not long-lasting and efficient; Second, the existing organic fertilizers will decompose during storage and transportation, reducing their fertilizer efficiency, and the effectiveness of organic fertilizers is unstable; Third, the existing organic fertilizers cannot effectively improve the soil structure and it is difficult to improve the soil's water retention capacity. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a livestock waste organic fertilizer and a preparation method thereof. In order to solve the problems that the existing organic fertilizers are not long-lasting and efficient, the effectiveness is unstable, and it is difficult to improve the water retention capacity of the soil, the present invention uses soil improvement particles to be placed in a protective solution and mixed with livestock waste nutrient base materials. The prepared livestock waste organic fertilizer has long-lasting and efficient action, stable fertilizer effect, easy storage and transportation, and effectively improves the water retention capacity of the soil.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: the present invention proposes a livestock waste organic fertilizer, and the raw materials for preparing the livestock waste organic fertilizer specifically include the following components in parts by weight: 80-110 parts of livestock waste nutrient base, 30-40 parts of soil improvement particles, 2.8-3.6 parts of hexadecyl alcohol ester, 1.7-2.4 parts of calcium disodium ethylenediaminetetraacetate, and 1.5-2.5 parts of hydrolyzed polymaleic anhydride.

[0007] Preferably, the raw materials for preparing the livestock waste nutrient base include the following components in parts by weight: 50-60 parts of livestock manure, 13-18 parts of chicken liver, 11-14 parts of duck heart, 33-46 parts of birch wood chips, 8-10 parts of amaranth, 12-15 parts of Elsholtzia ciliata, 3-4.5 parts of ammonium bicarbonate, 1.6-2.4 parts of decomposing bacteria agent, 18-23 parts of tetraethyl orthosilicate, and 29-36 parts of cerium oxide.

[0008] Preferably, the raw materials for preparing the soil improvement particles include the following components in parts by weight: 1.8-2.2 parts of brassinolide, 2-3 parts of phosphatidylinositol, 1.5-2 parts of sodium silicate, 8-11 parts of polyglycerol fatty acid esters, 9-14 parts of lactic acid fatty acid glycerides, 1.1-1.3 parts of flavanols, and 0.8-1.2 parts of phenylamino acid.

[0009] Preferably, the method for preparing the livestock waste nutrient base comprises the following steps: S1. Put livestock feces, chicken liver, duck heart, and birch wood chips into a high-pressure steam sterilizer with a power of 2.3-2.8 kW, a sterilization pressure of 103.4 kPa, a sterilization temperature of 121°C, and a sterilization time of 1.2-1.4 h, and perform high-temperature and high-pressure treatment to obtain pretreated waste; S2, putting the pretreated waste prepared in S1, Achyranthes bidentata, Elsholtzia ciliata, and ammonium bicarbonate into a pulverizer with a power of 1.8-2.2 kW, the pulverization temperature is 20-28° C., the pulverization time is 18-26 min, the pulverization speed is 5000-7000 r / min, mixing and pulverizing to obtain a basic mixture; S3, inoculate the decomposing bacterial agent into a 5% sterile glucose solution, place it in a constant temperature oscillation box with a power of 1.8-2.4 kW, culture at a constant temperature oscillation temperature of 30°C, a constant temperature oscillation time of 24 h, and a constant temperature oscillation culture speed of 350 r / min, and culture to obtain a cultured bacterial solution; S4, placing the cultured bacterial liquid prepared in S3 and the basic mixture prepared in S2 into a fermentation tank with a power of 2.2-2.6 kW, stirring and fermenting at a temperature of 30°C, a stirring and fermenting time of 40-50 days, a stirring and fermenting speed of 120 r / min, and fully stirring and fermenting to obtain a nutrient raw material; S5. Put tetraethyl orthosilicate and anhydrous ethanol into a stirring tank with a power of 1.5-1.8 kW, the stirring temperature is 25-30°C, the stirring time is 16-20 min, the stirring speed is 350-400 r / min, and after mixing, add cerium oxide, soak at a temperature of 28-32°C for 8-11 min, take out and place in a drying oven with a power of 2.3 kW, the drying temperature is 80°C, and the drying time is 2-3 h to obtain dried cerium oxide; S6, placing the dried cerium oxide prepared in S5 into a muffle furnace with a power of 3.5 kW, calcining at a temperature of 580-620° C. for 2 h, and obtaining modified cerium oxide after calcination; S7. Put the modified cerium oxide prepared by S6 and the nutritional raw material prepared by S4 into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 25-28°C, the stirring speed is 100-130 r / min, the stirring time is 2.8-3.6 h, mix them evenly, put them into a granulator with a power of 5 kW, the granulation temperature is 30-35°C, the granulation time is 45-55 min, the granulation diameter is 0.8-1.3 mm, and granulate to obtain the livestock waste nutritional base.

[0010] Furthermore, in S1, the livestock manure is composed of sheep manure, horse manure and pig manure, and the mixing ratio by weight is 2-3:1.5-2.5:1.

[0011] Further, in S3, the decomposing bacterial agent is composed of Brevibacterium expansum, Glucose Acetobacter xylosus, and Bacillus polymyxa, and the weight ratio of the mixture is 0.9-1.1:1.2-1.3:1. The Brevibacterium expansum was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.1890, the Glucose Acetobacter xylosus was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.2706, and the Bacillus polymyxa was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.7667. The solid-liquid ratio of the decomposing bacterial agent to the 5% sterile glucose solution is 1:100 g / mL.

[0012] Furthermore, in S5, the mass fraction of the tetraethyl orthosilicate in anhydrous ethanol is 20-28%.

[0013] Preferably, the method for preparing the soil improving particles comprises the following steps: L1. Put brassinolide, phosphatidylinositol, sodium silicate, 70% ethanol solution and dimethyl sulfoxide into a stirring tank with a power of 1.5-1.8 kW, stirring at a temperature of 25-30°C, stirring for 16-20 min, and stirring at a speed of 350-400 r / min to obtain a stabilizer; L2, put polyglycerol fatty acid ester, lactic acid fatty acid glyceride, and anhydrous ethanol into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 200°C, the stirring speed is 300-500 r / min, the stirring time is 4.5-6 h, and after the reaction, a water-retaining component is obtained; L3, adding flavanol, phenylamino acid and ultrapure water into the water-retaining component prepared in L2, stirring at a temperature of 28-33°C, a stirring time of 15-20 min, and a stirring speed of 400 r / min to obtain a mixed solution; L4. Put the mixed solution prepared by L3 and the stabilizer prepared by L1 into a stirring tank with a power of 1.5-1.8 kW, the stirring temperature is 20-25°C, the stirring time is 20-30 min, the stirring speed is 300-400 r / min, mix them evenly, put them into a vacuum freeze-nano spray dryer with a power of 2.3-2.8 kW, the vacuum degree is -0.05 MPa, the freeze-nano spray drying temperature is -40°C, the freeze-nano spray drying particle size is 100 nm, the freeze-nano spray drying time is 2.5-3 h, and freeze-nano spray drying is performed to obtain soil improvement particles.

[0014] Furthermore, in L1, the mass fraction of brassinolide in 70% ethanol solution is 0.5%, the mass fraction of phosphatidylinositol in dimethyl sulfoxide is 4-7%, and in L2, the mass fraction of polyglycerol fatty acid ester in anhydrous ethanol is 11-14%.

[0015] Furthermore, in L3, the mass fraction of the flavanol in ultrapure water is 1%.

[0016] The present invention also proposes a method for preparing livestock waste organic fertilizer, which specifically comprises the following steps: Step 1: Put hexadecyl alcohol ester, calcium disodium ethylenediaminetetraacetate, hydrolyzed polymaleic anhydride and ultrapure water into a stirring tank with a power of 1.5-1.8 kW, stir at a temperature of 30-35° C., stir for 15-23 min, and stir at a speed of 500 r / min until fully dissolved to obtain a protective solution; Step 2: Place the soil improvement particles into the protective solution, stir at a temperature of 20-25°C, for 35 minutes, at a speed of 300-400 r / min, mix evenly, and obtain a conditioning matrix; Step 3: Place the livestock waste nutrient base into the adjusted matrix prepared in step 2, use an ultrasonic agitator with a power of 1.8 kW, an ultrasonic frequency of 15 kHz, a stirring speed of 20,000 r / min, a stirring temperature of 28°C, a stirring time of 15 min, and evenly disperse it to obtain livestock waste organic fertilizer.

[0017] Preferably, in step 1, the mass fraction of calcium disodium edetate in ultrapure water is 4-6%.

[0018] The beneficial effects of the present invention are as follows: The present invention uses livestock feces, chicken livers, duck hearts, and birch wood chips to perform high-temperature and high-pressure treatment, sterilize, and kill insect eggs to obtain pre-treated wastes rich in nutrients. After being mixed and crushed with Achyranthes bidentata, Elsholtzia ciliata, and ammonium bicarbonate, a basic mixture is obtained. When decomposed in the soil, a large amount of organic matter is released as a carbon source and energy source for microorganisms. A decomposing bacterial agent containing Brevibacterium expansum, Glucose Acetobacter xylosus, and Paenibacillus polymyxa is fully fermented with the basic mixture after constant temperature oscillation culture. During the fermentation process, complex organic matter, such as protein, can be decomposed and converted into odorless or low-odor metabolites, thereby increasing the content of available nutrients in the soil. The beneficial metabolites generated during the fermentation process are Metabolism products can not only inhibit the growth of harmful microorganisms, but also regulate the pH value of the fermentation environment, thereby reducing the generation of odors. They can also secrete plant growth hormones, such as indoleacetic acid and cytokinins, to promote the growth and development of plant roots and improve the efficiency of plant nutrient absorption. The secreted extracellular polysaccharides can combine with soil particles to form stable aggregates, regulate the structure of microbial communities in the soil, and increase the number and diversity of beneficial microorganisms. Cerium oxide is soaked in ethyl orthosilicate dissolved in anhydrous ethanol, dried, and calcined to form modified cerium oxide with a porous structure, which increases the specific surface area of ​​the material, thereby providing more adsorption sites for the nutrients in organic fertilizers and slowing down the fertilizer in the soil. The dissolution and release rate in the soil makes it more evenly supplied to plants, avoiding root burn due to excessive fertilizer concentration, effectively improving the utilization rate of nutrient raw materials, and the nutrient base made of livestock waste is highly effective; brassinolide can regulate the activity of transport proteins on plant cell membranes, thereby promoting the transmembrane transport of nutrients, promoting the elongation and branching of the root system, and increasing the surface area and absorption capacity of the root system. Phosphatidylinositol is composed of an inositol ring and two fatty acid chains, and is anchored to the inside of the cell membrane through a glycerol skeleton. After plants absorb silicate ions, they will be deposited in the cell wall to form silicon dioxide, or combined with polysaccharides in the cell wall to form a silicon-polysaccharide complex. Phosphatidylinositol cooperates with sodium silicate to maintain the stability of plant cells. The polyglycerol fatty acid ester and lactic acid fatty acid glyceride are dissolved in anhydrous ethanol. The hydroxyl groups in the polyglycerol fatty acid ester and the hydroxyl groups in the lactic acid fatty acid glyceride can interact with each other through hydrogen bonds. The obtained water-retaining component can capture and retain more water molecules. The phenylamino acid can promote the synthesis of cellulose and lignin in plant cell walls and significantly enhance the strength and toughness of cell walls. Flavanols affect the growth and development of the root system by regulating the level of plant hormones, which helps plants to better adapt to environmental stress and enhance the secondary metabolic capacity of the root system. After the phenylamino acid and the water-retaining component are mixed, the stabilizing composition is added. After freeze-nano spray drying, the obtained soil improvement particles enhance the lodging resistance of the plant.After the hexadecyl alcohol ester, calcium disodium ethylenediaminetetraacetate, and hydrolyzed polymaleic anhydride are mixed, the resulting protective solution reduces the surface tension between the organic fertilizer particles, making it difficult for the particles to adhere to each other, and can adjust the hygroscopicity of the fertilizer to prevent the fertilizer from excessively absorbing moisture and agglomerating in a humid environment. The mixed soil improvement particles and livestock waste nutrient base material produce a livestock waste organic fertilizer that is long-lasting and efficient, enhances the strength and toughness of plant stems, improves the plant's ability to resist lodging, has stable fertilizer efficiency, is easy to store and transport, does not agglomerate, and effectively improves the soil's water retention capacity. ; BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the present invention or the technical solutions in the prior art, the following will be described in a clear and understandable manner in conjunction with the accompanying drawings. Obviously, the drawings described below are only for the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a graph showing the fertilizer stability test results described in Experimental Example 1 of the present invention; Figure 2 This is a diagram showing the results of measuring the plant height of rapeseed described in Experimental Example 2 of the present invention; Figure 3 This is a diagram showing the results of measuring the plant height of Chinese cabbage described in Experimental Example 2 of the present invention; Figure 4 This is a graph showing the rice plant traits results described in Experimental Example 2 of the present invention; Figure 5 This is a graph showing the amount of water released from the soil sample described in Experimental Example 3 of the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Unless otherwise defined, all professional and scientific terms used herein have the same meanings as those familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to those described herein may be applied to the present invention. The preferred implementation methods and materials described herein are for demonstration purposes only and are not intended to limit the content of this application.

[0023] The experimental methods in the following examples are conventional methods unless otherwise specified; the experimental materials and test strains used in the following examples are purchased from commercial channels unless otherwise specified.

[0024] Example 1: This example provides a livestock waste organic fertilizer and a preparation method thereof. The raw materials for preparing the livestock waste organic fertilizer specifically include the following components in parts by weight: 80 parts of livestock waste nutrient base, 30 parts of soil improvement particles, 2.8 parts of hexadecyl alcohol ester, 1.7 parts of calcium disodium ethylenediaminetetraacetate, and 1.5 parts of hydrolyzed polymaleic anhydride.

[0025] The raw materials for preparing the livestock waste nutrient base material include the following components in parts by weight: 50 parts of livestock feces, 13 parts of chicken liver, 11 parts of duck heart, 33 parts of birch wood chips, 8 parts of amaranth, 12 parts of elsholtzia, 3 parts of ammonium bicarbonate, 1.6 parts of decomposing bacteria agent, 18 parts of tetraethyl orthosilicate, and 29 parts of cerium oxide.

[0026] The raw materials for preparing the soil improvement particles include the following components in parts by weight: 1.8 parts of brassinolide, 2 parts of phosphatidylinositol, 1.5 parts of sodium silicate, 8 parts of polyglycerol fatty acid ester, 9 parts of lactic acid fatty acid glyceride, 1.1 parts of flavanols, and 0.8 parts of phenylamino acid.

[0027] The method for preparing the livestock waste nutrient base material specifically comprises the following steps: S1. Put livestock feces, chicken liver, duck heart, and birch wood chips into a high-pressure steam sterilizer with a power of 2.3 kW, a sterilization pressure of 103.4 kPa, a sterilization temperature of 121°C, and a sterilization time of 1.2 h, and perform high-temperature and high-pressure treatment to obtain pretreated waste; S2, putting the pretreated waste prepared in S1, Achyranthes bidentata, Elsholtzia ciliata, and ammonium bicarbonate into a pulverizer with a power of 1.8 kW, the pulverization temperature is 20° C., the pulverization time is 18 min, the pulverization speed is 5000 r / min, and mixing and pulverizing to obtain a basic mixture; S3, inoculate the decomposing bacterial agent into 5% sterile glucose solution, put it into a constant temperature oscillation box with a power of 1.8 kW, the constant temperature oscillation culture temperature is 30°C, the constant temperature oscillation time is 24 h, the constant temperature oscillation culture speed is 350 r / min, and culture is performed to obtain a cultured bacterial solution; S4, placing the cultured bacterial liquid prepared in S3 and the basic mixture prepared in S2 into a fermentation tank with a power of 2.2 kW, stirring and fermenting at a temperature of 30°C, a stirring and fermenting time of 40 days, a stirring and fermenting speed of 120 r / min, and fully stirring and fermenting to obtain a nutrient raw material; S5. Put tetraethyl orthosilicate and anhydrous ethanol into a stirring tank with a power of 1.5 kW, the stirring temperature is 25°C, the stirring time is 16 min, the stirring speed is 350 r / min, and after mixing, add cerium oxide, soak at a temperature of 28°C for 8 min, take out and place in a drying oven with a power of 2.3 kW, the drying temperature is 80°C, and the drying time is 2 h to obtain dried cerium oxide; S6, placing the dried cerium oxide prepared in S5 into a muffle furnace with a power of 3.5 kW, calcining at a temperature of 580°C for 2 h, and obtaining modified cerium oxide after calcination; S7. Put the modified cerium oxide prepared by S6 and the nutritional raw material prepared by S4 into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 25°C, the stirring speed is 100 r / min, the stirring time is 2.8 h, mix them evenly, put them into a granulator with a power of 5 kW, the granulation temperature is 30°C, the granulation time is 45 min, the granulation diameter is 0.8 mm, and granulate them to obtain the livestock waste nutritional base.

[0028] In S1, the livestock manure consists of sheep manure, horse manure and pig manure, and the mixing ratio by weight is 2:1.5:1.

[0029] In S3, the decomposing bacterial agent is composed of Brevibacterium expansum, Glucose Acetobacter xylosus, and Bacillus polymyxa, and the weight ratio is 0.9:1.2:1. The Brevibacterium expansum was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.1890, the Glucose Acetobacter xylosus was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.2706, and the Bacillus polymyxa was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.7667. The solid-liquid ratio of the decomposing bacterial agent to the 5% sterile glucose solution is 1:100 g / mL.

[0030] In S5, the mass fraction of the tetraethyl orthosilicate in the anhydrous ethanol is 20%.

[0031] The method for preparing the soil improvement particles specifically comprises the following steps: L1. Put brassinolide, phosphatidylinositol, sodium silicate, 70% ethanol solution and dimethyl sulfoxide into a stirring tank with a power of 1.5 kW, stirring at a temperature of 25°C, stirring for 16 min and stirring at a speed of 350 r / min to obtain a stabilizer; L2, put polyglycerol fatty acid ester, lactic acid fatty acid glyceride, and anhydrous ethanol into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 200°C, the stirring speed is 300 r / min, the stirring time is 4.5 h, and after the reaction, a water-retaining component is obtained; L3, adding flavanol, phenylamino acid and ultrapure water into the water-retaining component prepared in L2, stirring at 28°C, stirring for 15 min, and stirring at 400 r / min to obtain a mixed solution; L4. Put the mixed solution prepared by L3 and the stabilizer prepared by L1 into a stirring tank with a power of 1.5 kW, the stirring temperature is 20°C, the stirring time is 20 min, the stirring speed is 300 r / min, mix them evenly, put them into a vacuum freeze-nano spray dryer with a power of 2.3 kW, the vacuum degree is -0.05 MPa, the freeze-nano spray drying temperature is -40°C, the freeze-nano spray drying particle size is 100 nm, the freeze-nano spray drying time is 2.5 h, and freeze-nano spray drying is performed to obtain soil improvement particles.

[0032] In L1, the mass fraction of brassinolide in 70% ethanol solution is 0.5%, the mass fraction of phosphatidylinositol in dimethyl sulfoxide is 4%, and in L2, the mass fraction of polyglycerol fatty acid ester in anhydrous ethanol is 11%.

[0033] In L3, the mass fraction of the flavanol in ultrapure water is 1%.

[0034] This embodiment also provides a method for preparing livestock waste organic fertilizer, which specifically comprises the following steps: Step 1: Put hexadecyl alcohol ester, calcium disodium ethylenediaminetetraacetate, hydrolyzed polymaleic anhydride and ultrapure water into a stirring tank with a power of 1.5 kW, stir at a temperature of 30°C, stir for 15 min, and stir at a speed of 500 r / min until fully dissolved to obtain a protective solution; Step 2: Place the soil improvement particles into the protective solution, stir at 20°C for 35 minutes, stir at 300 r / min, mix evenly, and obtain a conditioning matrix; Step 3: Place the livestock waste nutrient base into the adjusted matrix prepared in step 2, use an ultrasonic agitator with a power of 1.8 kW, an ultrasonic frequency of 15 kHz, a stirring speed of 20,000 r / min, a stirring temperature of 28°C, a stirring time of 15 min, and evenly disperse it to obtain livestock waste organic fertilizer.

[0035] In step 1, the mass fraction of calcium disodium ethylenediaminetetraacetate in ultrapure water is 4%.

[0036] Example 2: This example provides a livestock waste organic fertilizer and a preparation method thereof. The raw materials for preparing the livestock waste organic fertilizer specifically include the following components in parts by weight: 100 parts of livestock waste nutrient base, 35 parts of soil improvement particles, 3.2 parts of hexadecanol ester, 2.1 parts of calcium disodium ethylenediaminetetraacetate, and 2 parts of hydrolyzed polymaleic anhydride.

[0037] The raw materials for preparing the livestock waste nutrient base material include the following components in parts by weight: 55 parts of livestock feces, 16 parts of chicken liver, 12 parts of duck heart, 40 parts of birch wood chips, 9 parts of amaranth, 13 parts of elsholtzia, 3.8 parts of ammonium bicarbonate, 2.2 parts of decomposing bacteria agent, 20 parts of ethyl orthosilicate, and 31 parts of cerium oxide.

[0038] The raw materials for preparing the soil improvement particles include the following components in parts by weight: 1.9 parts of brassinolide, 2.5 parts of phosphatidylinositol, 1.8 parts of sodium silicate, 10 parts of polyglycerol fatty acid ester, 12 parts of lactic acid fatty acid glyceride, 1.2 parts of flavanol, and 0.9 parts of phenylamino acid.

[0039] The method for preparing the livestock waste nutrient base material specifically comprises the following steps: S1. Put livestock feces, chicken liver, duck heart, and birch wood chips into a high-pressure steam sterilizer with a power of 2.5 kW, a sterilization pressure of 103.4 kPa, a sterilization temperature of 121°C, and a sterilization time of 1.3 h, and perform high-temperature and high-pressure treatment to obtain pretreated waste; S2, putting the pretreated waste prepared in S1, Achyranthes bidentata, Elsholtzia ciliata, and ammonium bicarbonate into a pulverizer with a power of 2.1 kW, the pulverization temperature is 26° C., the pulverization time is 23 min, the pulverization speed is 6000 r / min, and mixing and pulverizing to obtain a basic mixture; S3, inoculate the decomposing bacteria agent into 5% sterile glucose solution, put it into a constant temperature oscillation box with a power of 2.2 kW, the constant temperature oscillation culture temperature is 30°C, the constant temperature oscillation time is 24 h, the constant temperature oscillation culture speed is 350 r / min, and culture is performed to obtain a cultured bacterial solution; S4, placing the cultured bacterial liquid prepared in S3 and the basic mixture prepared in S2 into a fermentation tank with a power of 2.5 kW, stirring and fermenting at a temperature of 30°C, a stirring and fermenting time of 45 days, and a stirring and fermenting speed of 120 r / min, and fully stirring and fermenting to obtain a nutrient raw material; S5. Put tetraethyl orthosilicate and anhydrous ethanol into a stirring tank with a power of 1.5 kW, the stirring temperature is 28°C, the stirring time is 18 min, the stirring speed is 380 r / min, and cerium oxide is added after mixing. The mixture is soaked at a temperature of 30°C for 10 min. After taking it out, it is placed in a drying oven with a power of 2.3 kW, the drying temperature is 80°C, and the drying time is 2.5 h to obtain dried cerium oxide. S6, placing the dried cerium oxide prepared in S5 into a muffle furnace with a power of 3.5 kW, calcining at a temperature of 610°C for 2 h, and obtaining modified cerium oxide after calcination; S7. Put the modified cerium oxide prepared by S6 and the nutritional raw material prepared by S4 into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 27°C, the stirring speed is 110 r / min, the stirring time is 3.2 h, mix them evenly, put them into a granulator with a power of 5 kW, the granulation temperature is 33°C, the granulation time is 50 min, the granulation diameter is 1.2 mm, and granulate them to obtain the livestock waste nutritional base.

[0040] In S1, the livestock manure consists of sheep manure, horse manure and pig manure, and the mixing ratio by weight is 2.5:2:1.

[0041] In S3, the decomposing bacterial agent is composed of Brevibacterium expansum, Glucose Acetobacter xylosus, and Bacillus polymyxa, and the weight ratio is 1:1.2:1. The Brevibacterium expansum was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.1890, the Glucose Acetobacter xylosus was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.2706, and the Bacillus polymyxa was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.7667. The solid-liquid ratio of the decomposing bacterial agent to the 5% sterile glucose solution is 1:100 g / mL.

[0042] In S5, the mass fraction of the tetraethyl orthosilicate in anhydrous ethanol is 24%.

[0043] The method for preparing the soil improvement particles specifically comprises the following steps: L1. Put brassinolide, phosphatidylinositol, sodium silicate, 70% ethanol solution and dimethyl sulfoxide into a stirring tank with a power of 1.6 kW, stirring at a temperature of 28°C, stirring for 17 min and stirring at a speed of 380 r / min to obtain a stabilizer; L2, put polyglycerol fatty acid ester, lactic acid fatty acid glyceride and anhydrous ethanol into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 200°C, the stirring speed is 400 r / min, the stirring time is 5.2 h, and after the reaction, a water-retaining component is obtained; L3, adding flavanol, phenylamino acid and ultrapure water into the water-retaining component prepared in L2, stirring at 30°C, stirring for 18 min, and stirring at 400 r / min to obtain a mixed solution; L4. Put the mixed solution prepared by L3 and the stabilizer prepared by L1 into a stirring tank with a power of 1.6 kW, the stirring temperature is 23°C, the stirring time is 25 min, the stirring speed is 330 r / min, mix them evenly, put them into a vacuum freeze-nano spray dryer with a power of 2.6 kW, the vacuum degree is -0.05 MPa, the freeze-nano spray drying temperature is -40°C, the freeze-nano spray drying particle size is 100 nm, the freeze-nano spray drying time is 2.8 h, and freeze-nano spray drying is performed to obtain soil improvement particles.

[0044] In L1, the mass fraction of brassinolide in 70% ethanol solution is 0.5%, the mass fraction of phosphatidylinositol in dimethyl sulfoxide is 5%, and in L2, the mass fraction of polyglycerol fatty acid ester in anhydrous ethanol is 12%.

[0045] In L3, the mass fraction of the flavanol in ultrapure water is 1%.

[0046] This embodiment also provides a method for preparing livestock waste organic fertilizer, which specifically comprises the following steps: Step 1: Put hexadecyl alcohol ester, calcium disodium ethylenediaminetetraacetate, hydrolyzed polymaleic anhydride and ultrapure water into a stirring tank with a power of 1.6 kW, stir at a temperature of 32° C., stir for 18 min, and stir at a speed of 500 r / min until fully dissolved to obtain a protective solution; Step 2: Place the soil improvement particles into the protective solution, stir at 23°C for 35 minutes, stir at 360 r / min, mix evenly, and obtain a conditioning matrix; Step 3: Place the livestock waste nutrient base into the adjusted matrix prepared in step 2, use an ultrasonic agitator with a power of 1.8 kW, an ultrasonic frequency of 15 kHz, a stirring speed of 20,000 r / min, a stirring temperature of 28°C, a stirring time of 15 min, and evenly disperse it to obtain livestock waste organic fertilizer.

[0047] In step 1, the mass fraction of calcium disodium ethylenediaminetetraacetate in ultrapure water is 5%.

[0048] Example 3: This example provides a livestock waste organic fertilizer and a preparation method thereof. The raw materials for preparing the livestock waste organic fertilizer specifically include the following components in parts by weight: 110 parts of livestock waste nutrient base, 40 parts of soil improvement particles, 3.6 parts of hexadecyl alcohol ester, 2.4 parts of calcium disodium ethylenediaminetetraacetate, and 2.5 parts of hydrolyzed polymaleic anhydride.

[0049] The raw materials for preparing the livestock waste nutrient base material include the following components in parts by weight: 60 parts of livestock feces, 18 parts of chicken liver, 14 parts of duck heart, 46 parts of birch wood chips, 10 parts of amaranth, 15 parts of elsholtzia, 4.5 parts of ammonium bicarbonate, 2.4 parts of decomposing bacteria agent, 23 parts of ethyl orthosilicate, and 36 parts of cerium oxide.

[0050] The raw materials for preparing the soil improvement particles include the following components in parts by weight: 2.2 parts of brassinolide, 3 parts of phosphatidylinositol, 2 parts of sodium silicate, 11 parts of polyglycerol fatty acid ester, 14 parts of lactic acid fatty acid glyceride, 1.3 parts of flavanols, and 1.2 parts of phenylamino acid.

[0051] The method for preparing the livestock waste nutrient base material specifically comprises the following steps: S1. Put livestock feces, chicken liver, duck heart, and birch wood chips into a high-pressure steam sterilizer with a power of 2.8 kW, a sterilization pressure of 103.4 kPa, a sterilization temperature of 121°C, and a sterilization time of 1.4 h, and perform high-temperature and high-pressure treatment to obtain pretreated waste; S2, putting the pretreated waste prepared in S1, Achyranthes bidentata, Elsholtzia ciliata, and ammonium bicarbonate into a pulverizer with a power of 2.2 kW, the pulverization temperature is 28° C., the pulverization time is 26 min, the pulverization speed is 7000 r / min, and mixing and pulverizing to obtain a basic mixture; S3, inoculate the decomposing bacteria agent into 5% sterile glucose solution, put it into a constant temperature oscillation box with a power of 2.4 kW, the constant temperature oscillation culture temperature is 30°C, the constant temperature oscillation time is 24 h, the constant temperature oscillation culture speed is 350 r / min, and culture is performed to obtain a cultured bacterial solution; S4, placing the cultured bacterial liquid prepared in S3 and the basic mixture prepared in S2 into a fermentation tank with a power of 2.6 kW, stirring and fermenting at a temperature of 30°C, a stirring and fermenting time of 50 days, a stirring and fermenting speed of 120 r / min, and fully stirring and fermenting to obtain a nutrient raw material; S5. Put tetraethyl orthosilicate and anhydrous ethanol into a stirring tank with a power of 1.8 kW, the stirring temperature is 30°C, the stirring time is 20 min, the stirring speed is 400 r / min, and after mixing, add cerium oxide, soak at a temperature of 32°C for 11 min, take out and place in a drying oven with a power of 2.3 kW, the drying temperature is 80°C, and the drying time is 3 h to obtain dried cerium oxide; S6, placing the dried cerium oxide prepared in S5 into a muffle furnace with a power of 3.5 kW, calcining at a temperature of 620° C. for 2 h, and obtaining modified cerium oxide after calcination; S7. Put the modified cerium oxide prepared by S6 and the nutritional raw material prepared by S4 into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 28°C, the stirring speed is 130 r / min, the stirring time is 3.6 h, mix them evenly, put them into a granulator with a power of 5 kW, the granulation temperature is 35°C, the granulation time is 55 min, the granulation diameter is 1.3 mm, and granulate them to obtain the livestock waste nutritional base.

[0052] In S1, the livestock manure consists of sheep manure, horse manure and pig manure, and the mixing ratio by weight is 3:2.5:1.

[0053] In S3, the decomposing bacterial agent is composed of Brevibacterium expansum, Glucose Acetobacter xylosus, and Bacillus polymyxa, and the weight ratio is 1.1:1.3:1. The Brevibacterium expansum was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.1890, the Glucose Acetobacter xylosus was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.2706, and the Bacillus polymyxa was purchased from the China General Microbiological Culture Collection Center with a preservation number of CGMCC1.7667. The solid-liquid ratio of the decomposing bacterial agent to the 5% sterile glucose solution is 1:100 g / mL.

[0054] In S5, the mass fraction of the tetraethyl orthosilicate in anhydrous ethanol is 28%.

[0055] The method for preparing the soil improvement particles specifically comprises the following steps: L1. Put brassinolide, phosphatidylinositol, sodium silicate, 70% ethanol solution and dimethyl sulfoxide into a stirring tank with a power of 1.8 kW, stirring at a temperature of 30°C, stirring for 20 min and stirring at a speed of 400 r / min to obtain a stabilizer; L2, put polyglycerol fatty acid ester, lactic acid glycerol ester and anhydrous ethanol into a constant temperature stirrer with a power of 2.2 kW, the stirring temperature is 200°C, the stirring speed is 500 r / min, the stirring time is 6 h, and after the reaction, a water-retaining component is obtained; L3, adding flavanol, phenylamino acid and ultrapure water into the water-retaining component prepared in L2, stirring at 33°C, stirring for 20 min, and stirring at 400 r / min to obtain a mixed solution; L4. Put the mixed solution prepared by L3 and the stabilizer prepared by L1 into a stirring tank with a power of 1.8 kW, the stirring temperature is 25°C, the stirring time is 30 min, the stirring speed is 400 r / min, mix them evenly, put them into a vacuum freeze-nano spray dryer with a power of 2.8 kW, the vacuum degree is -0.05 MPa, the freeze-nano spray drying temperature is -40°C, the freeze-nano spray drying particle size is 100 nm, the freeze-nano spray drying time is 3 h, and freeze-nano spray drying is performed to obtain soil improvement particles.

[0056] In L1, the mass fraction of brassinolide in 70% ethanol solution is 0.5%, the mass fraction of phosphatidylinositol in dimethyl sulfoxide is 7%, and in L2, the mass fraction of polyglycerol fatty acid ester in anhydrous ethanol is 14%.

[0057] In L3, the mass fraction of the flavanol in ultrapure water is 1%.

[0058] This embodiment also provides a method for preparing livestock waste organic fertilizer, which specifically comprises the following steps: Step 1: Put hexadecyl alcohol ester, calcium disodium ethylenediaminetetraacetate, hydrolyzed polymaleic anhydride and ultrapure water into a stirring tank with a power of 1.8 kW, stir at a temperature of 35° C., stir for 23 min, and stir at a speed of 500 r / min until fully dissolved to obtain a protective solution; Step 2: Place the soil improvement particles into the protective solution, stir at 25°C for 35 minutes, stir at 400 r / min, mix evenly, and obtain a conditioning matrix; Step 3: Place the livestock waste nutrient base into the adjusted matrix prepared in step 2, use an ultrasonic agitator with a power of 1.8 kW, an ultrasonic frequency of 15 kHz, a stirring speed of 20,000 r / min, a stirring temperature of 28°C, a stirring time of 15 min, and evenly disperse it to obtain livestock waste organic fertilizer.

[0059] In step 1, the mass fraction of calcium disodium ethylenediaminetetraacetate in ultrapure water is 6%.

[0060] Comparative Example 1: This comparative example provides a waste organic fertilizer and a preparation method thereof, which is different from Example 1 only in that the added livestock waste nutrient base does not contain modified cerium oxide, and the remaining components, component contents, and method steps are the same as those in Example 1.

[0061] Comparative Example 2: This comparative example provides a waste organic fertilizer and a preparation method thereof, which is different from Example 1 only in that the added soil improvement particles do not contain a water-retaining component, and the remaining components, component contents, and method steps are the same as those in Example 1.

[0062] Experimental Example 1: Fertilizer stability determination.

[0063] The test steps for determining the stability of the livestock waste organic fertilizer prepared in Examples 1-3 of the present invention are as follows: (1) Thermal stability test: 5 kg of each of the livestock waste organic fertilizers prepared in Examples 1-3 were taken as Example 1-3 groups, 5 kg of the waste organic fertilizers prepared in Comparative Example 1-2 were taken as Comparative Example 1-2 groups, and commercially available organic fertilizers (purchased from Handan Yuanwo Fertilizer Technology Co., Ltd.) were taken as the control group. They were stored in a constant temperature box at a temperature of 60°C and a humidity of 75% for 14 days. The percentage of mass decrease of the fertilizers after 14 days of storage was calculated, and the average value of the measured values ​​was recorded 10 times. In addition, it was observed whether each group of fertilizers had obvious deterioration, separation, and precipitation. If so, it was unqualified, otherwise it was qualified. 50 samples of Example 1-3 groups, Comparative Example 1-2 groups and the control group were tested in parallel, and the qualified rate of the samples among the 50 samples was recorded; (2) Fertilizer efficiency stability test: A 6-mu test field was opened and divided into 3 mu of Example 1-3 group, 2 mu of Comparative Example 1-2 group and 1 mu of control group. The livestock waste organic fertilizer prepared in Example 1-3 group, the waste organic fertilizer prepared in Comparative Example 1-2 group and the commercially available organic fertilizer in the control group, which had been stored in a constant temperature box at a temperature of 60°C and a humidity of 75% for 14 days, were applied to transplanted tomato seedlings with a plant height of 8 cm. The fertilizer was mixed with ultrapure water at a weight ratio of 1:5. After complete dissolution, the fertilizer was applied. The tomato seedlings were transplanted and planted at an equal distance of 10×10 cm per mu. The plant height of the tomato seedlings 30 days after fertilization was recorded. The plant height growth rate was calculated according to the formula: plant height growth rate (%) = plant height after 30 days - initial plant height / initial plant height × 100%. The average value of the three measured values ​​was recorded.

[0064] Result analysis: Figure 1This is a graph of the fertilizer stability measurement results described in Experimental Example 1 of the present invention. As shown in the figure, the livestock waste organic fertilizer prepared in Examples 1-3, after being stored in a constant temperature box at a temperature of 60°C and a humidity of 75% for 14 days, the mass reduction percentages are 1.18%, 1.12%, and 0.73%, and the qualified rates of deterioration, separation, and precipitation are 97.2%, 97.4%, and 97.8%. After being applied to tomato seedlings, the plant height growth rates of tomato seedlings are 147.7%, 148.2%, and 150.5% after 30 days. The waste organic fertilizer prepared in Comparative Examples 1-2, after being stored in a constant temperature box at a temperature of 60°C and a humidity of 75% for 14 days, the mass reduction percentages are 3.38% and 1.25%, and the qualified rates of deterioration, separation, and precipitation are 90.5%, 96.5%, and 30 days after being applied to tomato seedlings. After 14 days, the plant height growth rates of tomato seedlings were 134.1% and 143.8%, while the commercially available organic fertilizer in the control group was stored in a constant temperature box at a temperature of 60°C and a humidity of 75% for 14 days, and the quality decrease percentage was 14.7%, and the qualified rate of deterioration, separation and precipitation was 75.4%. After being applied to tomato seedlings, the plant height growth rate of tomato seedlings was 49.6% after 30 days, indicating that the livestock waste organic fertilizer of the present invention has stable fertilizer effect and is easy to store and transport.

[0065] Experimental Example 2: Determination of the long-term effectiveness and lodging resistance of fertilizers.

[0066] The test steps for determining the long-term fertilizer effect and lodging resistance of the livestock waste organic fertilizer prepared in Examples 1-3 of the present invention are as follows: (1) A 6-mu test field was opened, which was divided into 3 mu of Example 1-3 groups, 2 mu of Comparative Example 1-2 groups and 1 mu of control group. The livestock waste organic fertilizer prepared in Example 1-3 groups, the waste organic fertilizer prepared in Comparative Example 1-2 groups and the commercially available organic fertilizer in the control group (purchased from Handan Yuanwo Fertilizer Technology Co., Ltd.) were applied to the transplanted 8-cm tall lettuce seedlings at a fertilizer rate of 5 kg / mu. The fertilizer was mixed with ultrapure water at a weight ratio of 1:5. After the fertilizer was completely dissolved, it was applied. The seedlings were transplanted and planted at an equal distance of 10×10 cm per mu. The growth height of the lettuce seedlings was recorded every 10 days. The record was continued for 50 days, and no topdressing was performed during this period. (2) A 6-mu test field was opened, which was divided into 3 mu of Example 1-3 groups, 2 mu of Comparative Example 1-2 groups and 1 mu of control group. The livestock waste organic fertilizer prepared in Example 1-3 groups, the waste organic fertilizer prepared in Comparative Example 1-2 groups and the commercially available organic fertilizer in the control group were applied to the transplanted Chinese cabbage seedlings with a plant height of 6 cm. The fertilizer was applied at a rate of 5 kg / mu. The fertilizer was mixed with ultrapure water at a weight ratio of 1:5. After the fertilizer was completely dissolved, it was applied. The seeds were transplanted and planted at an equal distance of 10×10 cm per mu. The growth height of the Chinese cabbage seedlings was recorded every 10 days. The record was continued for 60 days, and no topdressing was performed during this period. (3) A 6-mu experimental field was opened and divided into 3 mu of Example 1-3 groups, 2 mu of Comparative Example 1-2 groups and 1 mu of control group. The livestock waste organic fertilizer prepared in Example 1-3 groups, the waste organic fertilizer prepared in Comparative Example 1-2 groups and the commercially available organic fertilizer in the control group were applied to transplanted rice seedlings with a plant height of 13 cm at a fertilizer rate of 5 kg / mu. The fertilizer was mixed with ultrapure water at a weight ratio of 1:5. After complete dissolution, it was applied. The rice seedlings were transplanted and planted at equal intervals of 10×10 cm per mu. After 30 days, the stem diameter and wall thickness of the rice seedlings were recorded. No topdressing was performed during this period.

[0067] Result analysis: Figure 2 This is a graph showing the results of measuring the plant height of the lettuce described in Experimental Example 2 of the present invention. As shown in the figure, the livestock waste organic fertilizer prepared in Examples 1-3 was applied to the lettuce seedlings without topdressing. After 50 days, the plant heights of the lettuce were 41.9 cm, 42.2 cm, and 42.8 cm, respectively. The waste organic fertilizer prepared in Comparative Examples 1-2 was applied to the lettuce seedlings without topdressing. After 50 days, the plant heights of the lettuce were 33.4 cm and 40.2 cm, respectively. The commercially available organic fertilizer in the control group was applied to the lettuce seedlings without topdressing. After 50 days, the plant height of the lettuce was 27.2 cm. Figure 3 The figure is a result of measuring the plant height of Chinese cabbage described in Experimental Example 2 of the present invention. As shown in the figure, the livestock waste organic fertilizer prepared in Examples 1-3 was applied to Chinese cabbage seedlings without topdressing. After 60 days, the plant heights of Chinese cabbage were 56.9 cm, 58.3 cm, and 60.4 cm, respectively. The waste organic fertilizer prepared in Comparative Examples 1-2 was applied to Chinese cabbage seedlings without topdressing. After 60 days, the plant heights of Chinese cabbage were 40.2 cm and 53.2 cm, respectively. The commercially available organic fertilizer in the control group was applied to Chinese cabbage seedlings without topdressing. After 60 days, the plant height of Chinese cabbage was 32.1 cm, Figure 4 This is a result diagram of rice plant traits described in Experimental Example 2 of the present invention. After the livestock waste organic fertilizers prepared in Examples 1-3 were applied to rice seedlings for 30 days, the stem diameters of the rice seedlings were 4.55 mm, 4.64 mm, and 4.75 mm, respectively, and the wall thicknesses were 1.40 mm, 1.43 mm, and 1.48 mm, respectively. After the waste organic fertilizers prepared in Comparative Examples 1-2 were applied to rice seedlings for 30 days, the stem diameters of the rice seedlings were 4.14 mm and 4.23 mm, respectively, and the wall thicknesses were 1.24 mm and 1.33 mm, respectively. After the commercially available organic fertilizers in the control group were applied to rice seedlings for 30 days, the stem diameters of the rice seedlings were 3.19 mm and the wall thicknesses were 1.18 mm, respectively. This indicates that the livestock waste organic fertilizers of the present invention are long-lasting and efficient, enhance the strength and toughness of plant stems, and improve the lodging resistance of plants.

[0068] Experimental Example 3: Determination of soil water retention capacity.

[0069] The test steps for determining the soil water retention capacity of the livestock waste organic fertilizer prepared in Examples 1-3 of the present invention are as follows: (1) Weigh 100 g of the livestock waste organic fertilizer prepared in Examples 1-3 and mix it with ordinary soil in a weight ratio of 1:10, and leave it for 10 days to obtain soil samples of groups 1-3 of Examples; weigh 100 g of the waste organic fertilizer prepared in Comparative Examples 1-2 and mix it with ordinary soil in a weight ratio of 1:10, and leave it for 10 days to obtain soil samples of groups 1-2 of Comparative Examples; weigh 100 g of the commercially available organic fertilizer (purchased from Handan Yuanwo Fertilizer Technology Co., Ltd.) in the control group and mix it with ordinary soil in a weight ratio of 1:10, and leave it for 10 days to obtain soil samples of the control group; place each group of soil samples in a 2000 mL beaker, quickly add 1000 mL of distilled water, stir for 5 minutes, filter for 10 minutes, completely remove excess water, and obtain soil samples after water absorption; (2) Place the soil samples after water absorption in each group in step (1) into a ring cutter and compact them. Place the ring cutter containing the planting matrix samples after water absorption into a soil pressure testing machine and apply a pressure of 12.21 kPa to simulate the pressure state of water in the soil samples. Record the amount of water released from each group of soil samples when the pressure is 12.21 kPa. Use a measuring cylinder to collect the amount of water released from each group of planting matrix samples. Measure once every 20 minutes for 9 consecutive times.

[0070] Result analysis: Figure 5 This is a graph showing the amount of water released by the soil samples described in Experimental Example 3 of the present invention. As shown in the figure, the ring knife containing the soil sample after absorbing water is placed in a soil pressure testing machine, and the applied pressure value is 12.21 kPa to simulate the pressure state of water in the soil sample. At the 3rd hour, the amounts of water released by the soil samples in Examples 1-3 were 1.2 mL, 1.0 mL, and 0.7 mL, respectively; the amounts of water released by the soil samples in Comparative Examples 1-2 were 1.4 mL and 2.5 mL, respectively; and the amount of water released by the soil samples in the control group was 4.6 mL, indicating that the livestock waste organic fertilizer described in the present invention effectively improves the water retention capacity of the soil.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0072] The present invention and its implementation methods are described above, which is not restrictive. The drawings are only one of the implementation methods of the present invention, and the actual application is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A livestock waste organic fertilizer, characterized in that: The raw materials for preparing the livestock waste organic fertilizer specifically include the following components in parts by weight: 80-110 parts of livestock waste nutrient base, 30-40 parts of soil improvement particles, 2.8-3.6 parts of hexadecanol ester, 1.7-2.4 parts of calcium disodium ethylenediaminetetraacetate, and 1.5-2.5 parts of hydrolyzed polymaleic anhydride; The raw materials for preparing the livestock waste nutrient base material include the following components in parts by weight: 50-60 parts of livestock manure, 13-18 parts of chicken liver, 11-14 parts of duck heart, 33-46 parts of birch wood chips, 8-10 parts of amaranth, 12-15 parts of elsholtzia, 3-4.5 parts of ammonium bicarbonate, 1.6-2.4 parts of decomposing bacteria agent, 18-23 parts of tetraethyl orthosilicate, and 29-36 parts of cerium oxide; The raw materials for preparing the soil improvement particles include the following components in parts by weight: 1.8-2.2 parts of brassinolide, 2-3 parts of phosphatidylinositol, 1.5-2 parts of sodium silicate, 8-11 parts of polyglycerol fatty acid ester, 9-14 parts of lactic acid fatty acid glyceride, 1.1-1.3 parts of flavanol, and 0.8-1.2 parts of phenylamino acid.

2. The livestock waste organic fertilizer according to claim 1, characterized in that: The method for preparing the livestock waste nutrient base material specifically comprises the following steps: S1, treating livestock feces, chicken liver, duck heart, and birch wood chips to obtain pre-treated waste; S2, mixing and crushing the pretreated waste prepared in S1 with Achyranthes bidentata, Elsholtzia ciliata, and ammonium bicarbonate to obtain a basic mixture; S3, inoculating the decomposing bacterial agent into a 5% sterile glucose solution for culturing to obtain a cultured bacterial solution; S4, mixing the cultured bacterial solution prepared in S3 with the basic mixture prepared in S2, and fully fermenting them to obtain a nutrient raw material; S5, dissolving tetraethyl orthosilicate in anhydrous ethanol, adding cerium oxide, soaking, drying, and calcining to obtain modified cerium oxide; S6. Evenly mix the modified cerium oxide prepared in S5 and the nutrient raw material prepared in S4, and granulate them to obtain the livestock waste nutrient base material.

3. The livestock waste organic fertilizer according to claim 2, characterized in that: In S1, the livestock manure consists of sheep manure, horse manure, and pig manure, and the weight ratio is 2-3:1.5-2.5:1; in S3, the decomposing bacteria agent consists of Brevibacterium expansum, Gluconobacter xylosus, and Bacillus polymyxa, and the weight ratio is 0.9-1.1:1.2-1.3:1, and the liquid ratio of the decomposing bacteria agent to 5% sterile glucose solution is 1:100 g / mL.

4. The livestock waste organic fertilizer according to claim 3, characterized in that: In S5, the mass fraction of the tetraethyl orthosilicate in the anhydrous ethanol is 20-28%.

5. The livestock waste organic fertilizer according to claim 4, characterized in that: The method for preparing the soil improvement particles specifically comprises the following steps: L1. Stir and dissolve brassinolide, phosphatidylinositol, sodium silicate, 70% ethanol solution and dimethyl sulfoxide to obtain a stabilizer; L2, mixing polyglycerol fatty acid ester, lactic acid glycerol ester and anhydrous ethanol to obtain a water-retaining component; L3, adding flavanol, phenylamino acid and ultrapure water into the water-retaining component prepared in L2, and mixing well to obtain a mixed solution; L4, mixing the mixed solution prepared in L3 with the stabilizer prepared in L1, and performing freeze-nano spray drying to obtain soil improvement particles.

6. The livestock waste organic fertilizer according to claim 5, characterized in that: In L1, the mass fraction of brassinolide in 70% ethanol solution is 0.5%, the mass fraction of phosphatidylinositol in dimethyl sulfoxide is 4-7%, and in L2, the mass fraction of polyglycerol fatty acid ester in anhydrous ethanol is 11-14%.

7. The livestock waste organic fertilizer according to claim 6, characterized in that: In L3, the mass fraction of the flavanol in ultrapure water is 1%.

8. A method for preparing livestock waste organic fertilizer according to any one of claims 1 to 7, characterized in that: The specific steps include: Step 1: Fully dissolve hexadecanol, calcium disodium ethylenediaminetetraacetate, hydrolyzed polymaleic anhydride, and ultrapure water to obtain a protective solution; Step 2: Place the soil improvement particles into the protective solution and mix well to obtain a conditioning matrix; Step 3: Evenly disperse the livestock waste nutrient base material in the adjustment matrix prepared in step 2 to obtain livestock waste organic fertilizer.

9. The method for preparing livestock waste organic fertilizer according to claim 8, characterized in that: In step 1, the mass fraction of calcium disodium ethylenediaminetetraacetate in ultrapure water is 4-6%.

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