Microorganism activated type organic-inorganic compound formula fertilizer special for rice

Abstract

The invention relates to the technical field of compound fertilizers, and particularly discloses a microorganism activated type organic-inorganic compound formula fertilizer special for rice. The main raw materials of the organic-inorganic compound formula fertilizer comprise livestock and poultry manure sources, plant raw materials, mineral raw materials, microbial compound functional fungi and the like, through scientific and technical transformation, various raw materials are matched according to the nutrient proportion and the CN value and are fully fermented and decomposed, and then according to the growth requirements of rice in each stage, organic-inorganic proportions are matched for compounding, so that the organic-inorganic compound formula fertilizer is obtained. And inoculating multifunctional DM2 + DM3 compound bacteria, and refining and processing. According to the invention, high-quality organic raw materials and inorganic raw materials are selected, besides single major elements of nitrogen, phosphorus and potassium required by rice growth, the rice is also rich in various medium trace elements such as silicon, calcium, magnesium, sulfur, zinc, boron and molybdenum and physiological activators such as amino acid and humic acid, various nutrient substances required in the rice growth process are comprehensively met, and the quality of rice is remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of compound fertilizers, and more specifically, to a microbially activated organic-inorganic compound fertilizer specifically for rice. Background Art

[0002] With the development of modern agriculture, the demand for fertilizers has shifted from single chemical fertilizers to organic-inorganic compound fertilizers that pay more attention to ecological balance and sustainable development. As one of the most important food crops in the world, the demand for fertilizers in the production process of rice is particularly critical. Although traditional chemical fertilizers can provide rapid nutrient supply, long-term use will lead to problems such as soil structure destruction, nutrient imbalance and environmental pollution. Therefore, it is particularly important to develop a special rice fertilizer that can provide necessary nutrients and improve the soil environment.

[0003] Existing rice-specific fertilizers usually include a mixture of organic fertilizers and inorganic fertilizers in order to achieve the dual effects of nutrient supply and soil improvement. However, in actual application, existing rice-specific fertilizers generally have the following defects: (1) The formula lacks specificity and the nutrient supply does not match: the traditional organic-inorganic compound fertilizer formula is usually more general, and often cannot accurately release nutrients according to the different stages of rice growth, resulting in a mismatch between nutrient supply and rice demand, affecting the fertilizer utilization efficiency; (2) Microbial activity cannot be fully utilized: The microorganisms added to traditional organic-inorganic compound fertilizers are often on the surface of the fertilizer. During storage or use, the microorganisms are very easy to die, and the microbial activity cannot be effectively activated and utilized. Based on the above statements, the present application proposes a microorganism-activated rice-specific organic-inorganic compound formula fertilizer that can accurately match the growth needs of rice, effectively activate microorganisms, and is environmentally friendly. Summary of the invention

[0004] In order to solve the problems of lack of specificity in existing rice-specific fertilizer formulas, mismatched nutrient supply, and inability to fully utilize microbial activity, the present application provides a microbially activated rice-specific organic-inorganic compound formula fertilizer.

[0005] The present application provides a microbial activated organic-inorganic compound fertilizer for rice, which adopts the following technical solution:

[0006] A microbially activated organic-inorganic compound fertilizer for rice comprises the following raw materials in parts by weight: 65-75 parts of livestock and poultry manure, 40-60 parts of plant straw, 37-45 parts of mineral powder, 34-36 parts of urea, 8-10 parts of monoammonium phosphate, 10-12 parts of potassium sulfate, 0.5-1 parts of composite bacteria and 1-3 parts of adhesive.

[0007] Preferably, the microbially activated organic-inorganic compound fertilizer for rice comprises 70 parts of livestock and poultry manure, 50 parts of plant straw, 41 parts of mineral powder, 35 parts of urea, 9 parts of monoammonium phosphate, 11 parts of potassium sulfate, 0.8 parts of composite bacteria, and 2 parts of adhesive.

[0008] Preferably, in the microbially activated organic-inorganic compound fertilizer for rice, N+P2O5+K2O≥16-4-5.

[0009] Preferably, the mineral powder comprises diatomaceous earth, shell powder and sodium chloride in a mass ratio of 7-9:3-5:1.

[0010] Preferably, the composite bacteria include DM2 bacteria and DM3 bacteria with a live bacteria count ratio of 1:0.8-1.2.

[0011] Preferably, the adhesive comprises sodium bentonite and water-soluble sodium silicate in a mass ratio of 4-5:1-2.

[0012] A method for preparing a microbially activated organic-inorganic compound fertilizer for rice comprises the following steps:

[0013] S1, collecting livestock and poultry manure, pre-drying to control the moisture content to 50-60%, chopping plant straw and mixing it with livestock and poultry manure, adding lime powder to adjust the pH value to 6.5-7.2 to obtain a mixture, adding Bacillus licheniformis to the mixture, and then stacking the mixture for fermentation, and obtaining a fermented material after it is fully decomposed;

[0014] S2, adding the mineral powder to the fermentation material and stirring and mixing evenly, adding the composite bacteria and continuing to stir and mix, and then heating and drying to a constant weight under the protection of inert gas to obtain organic matter;

[0015] S3, the organic matter prepared in step S2 is blended with urea, monoammonium phosphate and potassium sulfate, and then crushed and sieved, a binder is added, and after stirring and mixing, granulation and drying are performed to obtain the desired organic-inorganic compound fertilizer for rice.

[0016] Preferably, the amount of Bacillus licheniformis added in step S1 is specifically as follows: the number of viable bacteria in the mixture is controlled to be 1.7-2.5×10 8 CFU / g.

[0017] Preferably, the pile fermentation in step S1 specifically refers to: a pile height of 1.5-2m, a pile width of 3-4m, a pile length of 4-7m, a fermentation time of 28-34d, and in the early stage of fermentation, turning the pile every 2-3d. After 2 weeks of fermentation, the turning frequency is reduced to once every 5-6d.

[0018] Preferably, the drying temperature in step S2 is 110-130° C., and the heating rate is 8-12° C. / min.

[0019] In summary, this application has the following beneficial effects:

[0020] 1. The microbial activated rice-specific organic-inorganic compound fertilizer of the present application is an organic slow-release fertilizer (N+P2O5+K2O≥16-4-5, organic matter≥20%, containing silicon and medium chlorine). The main raw materials include livestock and poultry manure, plant raw materials, mineral raw materials, microbial composite functional fungi, etc. After scientific and technological transformation, various raw materials are matched according to nutrient ratios and CN values ​​and fully fermented and decomposed, and then mixed with organic and inorganic ratios according to the growth needs of rice at different stages, and then inoculated with multifunctional DM2+DM3 composite bacteria for refined processing. High-quality organic and inorganic raw materials are carefully selected. In addition to the single macroelements of nitrogen, phosphorus and potassium required for rice growth, it is also rich in silicon, calcium, magnesium, sulfur, zinc, boron, molybdenum and other trace elements and physiologically active substances such as amino acids and humic acid, which fully meet the various nutrients required in the growth process of rice and significantly improve the quality of rice. Composite microbial composite bacterial agents have the functions of fixing nitrogen, dissolving phosphorus and dissolving potassium, promoting the absorption of nitrogen, phosphorus and potassium, and can improve the insect and disease resistance of rice, improve the soil, and continuous use can reduce production costs, increase rice yields, increase the negative value of food, and increase economic benefits.

[0021] 2. The microbially activated organic-inorganic compound fertilizer for rice of the present application has a long-lasting fertilizer effect, can significantly improve the absorption and utilization of mineral elements, comprehensively improve the utilization rate of fertilizers, comprehensively stimulate crop growth with nutrition, intelligently release and control nitrogen fixation, phosphorus dissolution, and potassium dissolution, promote rooting, enhance plant stress resistance, reduce the occurrence of soil-borne diseases, degrade harmful pollutants in the soil, etc., promote the absorption of nitrogen, phosphorus, and potassium, and increase the absorption rate of nitrogen, phosphorus, and potassium to more than 75%. Compared with the application of only nitrogen, phosphorus, and potassium single chemical fertilizers, the absorption rate can be increased by about 30-50%, and the metabolites of beneficial bacteria also have nutrients with extremely high nutritional value. DETAILED DESCRIPTION

[0022] The present application is further described in detail below with reference to the embodiments.

[0023] Embodiment 1-3 provides a microorganism activated organic-inorganic compound fertilizer specially formulated for rice.

[0024] Example 1

[0025] A microbial activated organic-inorganic compound fertilizer for rice, comprising the following raw materials in parts by weight: 65 parts of pig manure, 40 parts of rice straw, 37 parts of mineral powder, 34 parts of urea, 8 parts of monoammonium phosphate, 10 parts of potassium sulfate, 0.5 parts of composite bacteria, and 1 part of adhesive;

[0026] The mineral powder includes diatomaceous earth, shell powder and sodium chloride in a mass ratio of 7:3:1;

[0027] The composite bacteria include DM2 bacteria and DM3 bacteria with a live cell count ratio of 1:0.8;

[0028] The binder comprises sodium bentonite and water-soluble sodium silicate in a mass ratio of 4:1.

[0029] A method for preparing a microbially activated organic-inorganic compound fertilizer for rice comprises the following steps:

[0030] S1. Collect pig manure, dry it at 80°C in advance to control the moisture content to 50%, chop rice straw into 2 mm and mix it evenly with pig manure, add lime powder to adjust the pH value to 6.5 to obtain a mixture, add Bacillus licheniformis to the mixture, and control the number of live bacteria in the mixture to 1.7×10 8 CFU / g, and then the mixture is piled for fermentation, with a pile height of 1.5m, a pile width of 3m, and a pile length of 4m. The fermentation time is 34 days. In the early stage of fermentation, the pile is turned every 2 days. After 2 weeks of fermentation, the frequency of turning the pile is reduced to once every 5 days. The fermented material is obtained after it is fully decomposed.

[0031] S2. Add the mineral powder to the fermentation material and stir to mix evenly. Add the composite bacteria and continue to stir to mix. Then, under nitrogen protection, control the heating rate to 8°C / min, heat to 110°C and dry to constant weight to obtain organic matter.

[0032] S3. The organic matter prepared in step S2 is blended with urea, monoammonium phosphate and potassium sulfate, and then crushed and passed through a 100-mesh sieve. A binder is added, and the mixture is stirred and mixed evenly, and then granulated and passed through a 20-mesh sieve. The mixture is dried at 50° C. to obtain the desired organic-inorganic compound fertilizer for rice.

[0033] Example 2

[0034] A microbially activated organic-inorganic compound fertilizer for rice comprises the following raw materials in parts by weight: 70 parts of pig manure, 50 parts of rice straw, 41 parts of mineral powder, 35 parts of urea, 9 parts of monoammonium phosphate, 11 parts of potassium sulfate, 0.8 parts of composite bacteria, and 2 parts of adhesive.

[0035] A method for preparing a microbially activated organic-inorganic compound fertilizer for rice comprises the following steps:

[0036] S1. Collect pig manure, dry it at 80°C in advance to control the moisture content to 55%, chop rice straw into 2 mm and mix it evenly with pig manure, add lime powder to adjust the pH value to 6.8 to obtain a mixture, add Bacillus licheniformis to the mixture, and control the number of live bacteria in the mixture to 2.1×10 8CFU / g, and then the mixture is piled for fermentation, with a pile height of 1.8m, a pile width of 3.5m, a pile length of 5.5m, and a fermentation time of 31d. In the early stage of fermentation, the pile is turned every 2.5d. After 2 weeks of fermentation, the frequency of turning the pile is reduced to once every 5.5d. The fermented material is obtained after it is fully decomposed;

[0037] S2. Add the mineral powder to the fermentation material and stir to mix evenly. Add the composite bacteria and continue to stir to mix. Then, under nitrogen protection, control the heating rate to 10°C / min, heat to 120°C and dry to constant weight to obtain organic matter.

[0038] S3. The organic matter prepared in step S2 is blended with urea, monoammonium phosphate and potassium sulfate, and then crushed and passed through a 100-mesh sieve. A binder is added, and the mixture is stirred and mixed evenly, and then granulated and passed through a 20-mesh sieve. The mixture is dried at 50° C. to obtain the desired organic-inorganic compound fertilizer for rice.

[0039] Example 3

[0040] A microbially activated organic-inorganic compound fertilizer for rice comprises the following raw materials in parts by weight: 75 parts of pig manure, 60 parts of rice straw, 45 parts of mineral powder, 36 parts of urea, 10 parts of monoammonium phosphate, 12 parts of potassium sulfate, 1 part of composite bacteria, and 3 parts of adhesive.

[0041] A method for preparing a microbially activated organic-inorganic compound fertilizer for rice comprises the following steps:

[0042] S1. Collect pig manure, dry it at 80°C in advance to control the moisture content to 60%, chop rice straw into 2 mm and mix it evenly with pig manure, add lime powder to adjust the pH value to 7.2 to obtain a mixture, add Bacillus licheniformis to the mixture, and control the number of live bacteria in the mixture to 2.5×10 8 CFU / g, and then the mixture is piled for fermentation, with a pile height of 2m, a pile width of 4m, and a pile length of 7m. The fermentation time is 28 days. In the early stage of fermentation, the pile is turned every 3 days. After 2 weeks of fermentation, the frequency of turning the pile is reduced to once every 6 days. The fermented material is obtained after it is fully decomposed.

[0043] S2. Add the mineral powder to the fermentation material and stir to mix evenly. Add the composite bacteria and continue to stir to mix. Then, under nitrogen protection, control the heating rate to 12°C / min, heat to 130°C and dry to constant weight to obtain organic matter.

[0044] S3. The organic matter prepared in step S2 is blended with urea, monoammonium phosphate and potassium sulfate, and then crushed and passed through a 100-mesh sieve. A binder is added, and the mixture is stirred and mixed evenly, and then granulated and passed through a 20-mesh sieve. The mixture is dried at 50° C. to obtain the desired organic-inorganic compound fertilizer for rice.

[0045] In order to verify the comprehensive performance of the microbial activated organic-inorganic compound fertilizer for rice in Examples 1-3 of the present application, the applicant set up comparative examples 1-3, which are as follows:

[0046] Comparative Example 1

[0047] A microbial activated organic-inorganic compound fertilizer for rice, comprising the following raw materials in parts by weight: 65 parts of pig manure, 40 parts of rice straw, 37 parts of mineral powder, 34 parts of urea, 8 parts of monoammonium phosphate, 10 parts of potassium sulfate, 0.5 parts of bacterial agent, and 1 part of adhesive;

[0048] The mineral powder includes diatomaceous earth, shell powder and sodium chloride in a mass ratio of 7:3:1;

[0049] The bacterial agent is DM2 bacteria;

[0050] The binder comprises sodium bentonite and water-soluble sodium silicate in a mass ratio of 4:1.

[0051] A method for preparing a microbially activated organic-inorganic compound fertilizer for rice comprises the following steps:

[0052] S1. Collect pig manure, dry it at 80°C in advance to control the moisture content to 50%, chop rice straw into 2 mm and mix it evenly with pig manure, add lime powder to adjust the pH value to 6.5 to obtain a mixture, add Bacillus licheniformis to the mixture, and control the number of live bacteria in the mixture to 1.7×10 8 CFU / g, and then the mixture is piled for fermentation, with a pile height of 1.5m, a pile width of 3m, and a pile length of 4m. The fermentation time is 34 days. In the early stage of fermentation, the pile is turned every 2 days. After 2 weeks of fermentation, the frequency of turning the pile is reduced to once every 5 days. The fermented material is obtained after it is fully decomposed.

[0053] S2. Add the mineral powder to the fermentation material and stir to mix evenly. Add the bacterial agent and continue to stir to mix. Then, under nitrogen protection, control the heating rate to 8°C / min, heat to 110°C and dry to constant weight to obtain organic matter.

[0054] S3. The organic matter prepared in step S2 is blended with urea, monoammonium phosphate and potassium sulfate, and then crushed and passed through a 100-mesh sieve. A binder is added, and the mixture is stirred and mixed evenly, and then granulated and passed through a 20-mesh sieve. The mixture is dried at 50° C. to obtain the desired organic-inorganic compound fertilizer for rice.

[0055] Comparative Example 2

[0056] A microbial activated organic-inorganic compound fertilizer for rice, comprising the following raw materials in parts by weight: 65 parts of pig manure, 40 parts of rice straw, 37 parts of mineral powder, 34 parts of urea, 8 parts of monoammonium phosphate, 10 parts of potassium sulfate, 0.5 parts of bacterial agent, and 1 part of adhesive;

[0057] The mineral powder includes diatomaceous earth, shell powder and sodium chloride in a mass ratio of 7:3:1;

[0058] The bacterial agent is DM3 bacteria;

[0059] The binder comprises sodium bentonite and water-soluble sodium silicate in a mass ratio of 4:1.

[0060] A method for preparing a microbially activated organic-inorganic compound fertilizer for rice comprises the following steps:

[0061] S1. Collect pig manure, dry it at 80°C in advance to control the moisture content to 50%, chop rice straw into 2 mm and mix it evenly with pig manure, add lime powder to adjust the pH value to 6.5 to obtain a mixture, add Bacillus licheniformis to the mixture, and control the number of live bacteria in the mixture to 1.7×10 8 CFU / g, and then the mixture is piled for fermentation, with a pile height of 1.5m, a pile width of 3m, and a pile length of 4m. The fermentation time is 34 days. In the early stage of fermentation, the pile is turned every 2 days. After 2 weeks of fermentation, the frequency of turning the pile is reduced to once every 5 days. The fermented material is obtained after it is fully decomposed.

[0062] S2. Add the mineral powder to the fermentation material and stir to mix evenly. Add the bacterial agent and continue to stir to mix. Then, under nitrogen protection, control the heating rate to 8°C / min, heat to 110°C and dry to constant weight to obtain organic matter.

[0063] S3. The organic matter prepared in step S2 is blended with urea, monoammonium phosphate and potassium sulfate, and then crushed and passed through a 100-mesh sieve. A binder is added, and the mixture is stirred and mixed evenly, and then granulated and passed through a 20-mesh sieve. The mixture is dried at 50° C. to obtain the desired organic-inorganic compound fertilizer for rice.

[0064] Comparative Example 3

[0065] A microbial activated organic-inorganic compound fertilizer for rice, comprising the following raw materials in parts by weight: 65 parts of pig manure, 40 parts of rice straw, 37 parts of mineral powder, 34 parts of urea, 8 parts of monoammonium phosphate, 10 parts of potassium sulfate, 0.5 parts of composite bacteria, and 1 part of adhesive;

[0066] The mineral powder includes diatomaceous earth, shell powder and sodium chloride in a mass ratio of 7:3:1;

[0067] The composite bacteria include DM2 bacteria and DM3 bacteria with a live cell count ratio of 1:0.8;

[0068] The binder comprises sodium bentonite and water-soluble sodium silicate in a mass ratio of 4:1.

[0069] A method for preparing a microbially activated organic-inorganic compound fertilizer for rice comprises the following steps:

[0070] S1. Collect pig manure, dry it at 80°C in advance to control the moisture content to 50%, chop rice straw into 2 mm and mix it evenly with pig manure, add lime powder to adjust the pH value to 6.5 to obtain a mixture, add Bacillus licheniformis to the mixture, and control the number of live bacteria in the mixture to 1.7×10 8 CFU / g, and then the mixture is piled for fermentation, with a pile height of 1.5m, a pile width of 3m, and a pile length of 4m. The fermentation time is 34 days. In the early stage of fermentation, the pile is turned every 2 days. After 2 weeks of fermentation, the frequency of turning the pile is reduced to once every 5 days. The fermented material is obtained after it is fully decomposed.

[0071] S2. The fermented material is heated to 110°C under nitrogen protection at a heating rate of 8°C / min and dried to a constant weight to obtain a dry fermented material;

[0072] S3. The dried fermented material, mineral powder, composite bacteria, urea, monoammonium phosphate and potassium sulfate prepared in step S2 are blended and crushed through a 100-mesh sieve, a binder is added, the mixture is stirred and evenly mixed, granulated and passed through a 20-mesh sieve, and dried at 50° C. to obtain the desired organic-inorganic compound fertilizer for rice.

[0073] In order to verify the comprehensive effects of the microbially activated organic-inorganic compound fertilizer for rice prepared in Examples 1-3 and Comparative Examples 1-3 of the present application, field demonstration tests were carried out to provide a scientific basis for the promotion and application of the microbially activated organic-inorganic compound fertilizer for rice.

[0074] Field Demonstration Experiment 1

[0075] 1. Demonstration Materials and Methods

[0076] 1. Selection of demonstration fields: Select plots that are highly representative, have convenient transportation, complete infrastructure, flat terrain, and medium and uniform soil fertility.

[0077] Team 1, Qianjin Village, Zhananhu, Qionghu Street, Yuanjiang City (Yuanjiang Baomin Modern Agricultural Machinery Cooperative)

[0078] 2. Demonstration time: early rice

[0079] 3. Soil analysis data of the demonstration field is shown in Table 1 below:

[0080] Table 1 Soil analysis results of demonstration fields

[0081]

[0082] 4. Demonstration crop varieties and characteristics:

[0083] Rice variety: Zhongzao 39

[0084] Variety characteristics: plant height 82.0 cm, average full growth period 112.2 days, head rice rate 69.1%,

[0085] The aspect ratio is 1.9 and the amylose content is 24.2%.

[0086] Fertilizer and water management: The amount of fertilizer required is above medium, water tillering shallowly, sun the fields in time, expose more water but not too much, ear formation with water, and strengthen seeds with dry or wet conditions. Cut off water 4-6 days before maturity and harvest, and avoid cutting off water too early.

[0087] 5. Demonstration design and methods:

[0088] 5.1 The demonstration area consists of three hills, hilly loess sandy land and paddy fields.

[0089] 5.2 A total of 7 demonstration fields were set up. Demonstration fields 1-3 and comparative demonstration fields 1-3 were fertilized with the microbial activated rice-specific organic-inorganic compound fertilizers prepared in Examples 1-3 of the present application and Comparative Examples 1-3, respectively, and the control demonstration fields were fertilized with the local farmers' usual fertilization methods.

[0090] 5.3 The treatment area is 14 mu of rice fields. The rice demonstration area is separated by ridges and single irrigation and single drainage are implemented to avoid cross-irrigation and cross-drainage that may affect the test results.

[0091] 5.4 In demonstration fields 1-3, 60 kg of the microbial activated organic-inorganic compound fertilizer for rice prepared in Examples 1-3 of the present application was used per acre.

[0092] 5.5 For the comparison demonstration fields 1-3, 60 kg of the microbial activated rice-specific organic-inorganic compound fertilizer prepared in comparative examples 1-3 of the present application was used per mu, and 30 kg of compound fertilizer + 12.5 kg of urea was used for the comparison demonstration fields.

[0093] 2. Demonstration Results and Analysis

[0094] 1. Crop yield and yield increase rate are shown in Table 2 below:

[0095] Table 2 Demonstration field yield table

[0096] Demonstration Field Yield (Kg / mu) Demonstration Field 1 660.23 Demonstration Field 2 678.54 Demonstration Field 3 670.12 Comparison demonstration field 1 602.10 Comparison demonstration field 2 589.66 Comparison demonstration field 3 542.73 Control demonstration field 450

[0097] From the data shown in Table 2 above, it can be seen that the microbial activated rice-specific organic-inorganic compound fertilizer obtained in Examples 1-3 of the present application has a much better effect on increasing the yield of early rice than Comparative Examples 1-3. Compared with the control demonstration field, the yield of Demonstration Field 1 increased by 210.23 kg / mu, an increase of 46.7%, and the yield of early rice was significantly increased.

[0098] Table 3 Basic situation survey form of experimental field

[0099]

[0100] Table 4 Soil conditions of the test site

[0101] project Investigation terrain hills Soil Type clay texture Zhongsong Organic matter (g / kg) 4.28 Total nitrogen (g / kg) 0.29 Organic phosphorus (mg / kg) 0.49 Available potassium (mg / kg) 1.45 pH 6.9

[0102] Field Demonstration Experiment II

[0103] 1. Demonstration Materials and Methods

[0104] 1. Selection of demonstration fields: The demonstration fields are located in Liu Shengli’s responsibility field in Group 5, Ren’an Village, Gonghua Town, Yuanjiang City.

[0105] 2. Demonstration time: late rice

[0106] 3. Test soil: The test soil is purple tide mud developed from the sedimentary parent material of Dongting Lake. The soil analysis results before the demonstration were: soil organic matter 35.2g / kg, alkaline nitrogen 215.8mg / kg, available potassium 190.1mg / kg, pH value 7.6.

[0107] 4. Rice variety: Huarun No. 2

[0108] 5. Demonstration design and methods:

[0109] A total of 7 demonstration fields were set up, each covering 2 mu, with separate irrigation and drainage. Demonstration fields 1-3 and comparative demonstration fields 1-3 were fertilized with the microbial activated rice-specific organic-inorganic compound fertilizer prepared in Examples 1-3 and Comparative Examples 1-3 of the present application, respectively, and the comparative demonstration fields were fertilized with the fertilization practiced by local farmers all year round.

[0110] Specifically: Local farmers are accustomed to applying fertilizers all year round: 12 kg of pure nitrogen, 3 kg of phosphorus pentoxide, and 6 kg of potassium chloride per mu, among which 50% of nitrogen and potassium fertilizers are used as base fertilizer, 100% of phosphorus fertilizers are used, 30% of nitrogen fertilizers are used as topdressing, 50% of potassium fertilizers are used as tillering fertilizer, and the remaining 20% ​​of nitrogen fertilizers are used as ear fertilizer.

[0111] The microbially activated organic-inorganic compound fertilizer for rice prepared in Examples 1-3 of the present application and Comparative Examples 1-3 was used for fertilization treatment: 40 kg of bud biological compound fertilizer was applied as base fertilizer per mu, and 7.5 kg of urea and 5 kg of potassium chloride were applied as tillering fertilizer per mu, which was equivalent to 9.85 kg of pure nitrogen, 2 kg of phosphorus pentoxide, and 5 kg of potassium chloride per mu.

[0112] 6. Main cultivation management: Late rice was sown on June 10, 2023, and transplanted on July 9. The transplanting density was 21,000 dodders per mu and 4.2 seedlings per amaranth.

[0113] 2. Demonstration Results and Analysis

[0114] 1. Effects of different treatments on late rice yield

[0115] Table 5 Effects of different treatments on late rice yield

[0116]

[0117]

[0118] From the data shown in Table 5 above, it can be seen that the microbial activated rice-specific organic-inorganic compound fertilizer obtained in Examples 1-3 of the present application has a better effect on increasing the yield of early rice than Comparative Examples 1-3. Compared with the control demonstration field, the yield of Demonstration Field 1 increased by 50.9 kg / mu, an increase of 10.6%, and the yield of late rice was also increased to a certain extent.

[0119] 2. Effects of different treatments on economic traits of late rice

[0120] Table 6 Effects of different treatments on economic traits of late rice

[0121]

[0122] From the data shown in Table 6 above, it can be seen that the two different treatments of Demonstration Field 1 and the control Demonstration Field have little effect on the 1000-grain weight of late rice. However, the effective panicles per mu, the number of grains per panicle, and the number of solid grains per mu of late rice in Demonstration Field 1 are 215,000 (10,000 / mu), 106.6 (grains), and 85.1%, respectively, which are significantly higher than 203,000 (10,000 / mu), 101.3 (grains), and 82.2% of the control Demonstration Field.

[0123] In summary, through the field demonstration effect, it can be known that the microbial activated organic-inorganic compound formula fertilizer for rice obtained in Examples 1-3 of the present application has uniform effective tillering, thick and elastic rice stalks, a rice seedling height that is 10-12 cm higher than that of compound fertilizers, sufficient fertility and no fertilizer deficiency or premature aging, and can increase the number of effective ears and grains per ear, and the number of solid grains is also greatly improved, with considerable economic benefits and good promotion value.

[0124] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A microbial activated organic-inorganic compound fertilizer for rice, characterized in that: The invention comprises the following raw materials in parts by weight: 65-75 parts of livestock and poultry manure, 40-60 parts of plant straw, 37-45 parts of mineral powder, 34-36 parts of urea, 8-10 parts of monoammonium phosphate, 10-12 parts of potassium sulfate, 0.5-1 parts of composite bacteria and 1-3 parts of adhesive.

2. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 70 parts of livestock and poultry manure, 50 parts of plant straw, 41 parts of mineral powder, 35 parts of urea, 9 parts of monoammonium phosphate, 11 parts of potassium sulfate, 0.8 parts of composite bacteria and 2 parts of adhesive.

3. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The N+P2O5+K2O in the microorganism activated rice-specific organic-inorganic compound fertilizer is ≥16-4-5.

4. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The mineral powder comprises diatomaceous earth, shell powder and sodium chloride in a mass ratio of 7-9:3-5:

1.

5. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The composite bacteria include DM2 bacteria and DM3 bacteria with a live bacteria count ratio of 1:0.8-1.

2.

6. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The adhesive comprises sodium bentonite and water-soluble sodium silicate in a mass ratio of 4-5:1-2.

7. A method for preparing the microbial activated organic-inorganic compound fertilizer for rice as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: S1, collecting livestock and poultry manure, pre-drying to control the moisture content to 50-60%, chopping plant straw and mixing it with livestock and poultry manure, adding lime powder to adjust the pH value to 6.5-7.2 to obtain a mixture, adding Bacillus licheniformis to the mixture, and then stacking the mixture for fermentation, and obtaining a fermented material after it is fully decomposed; S2, adding the mineral powder to the fermentation material and stirring and mixing evenly, adding the composite bacteria and continuing to stir and mix, and then heating and drying to a constant weight under the protection of inert gas to obtain organic matter; S3, the organic matter prepared in step S2 is blended with urea, monoammonium phosphate and potassium sulfate, and then crushed and sieved, a binder is added, and after stirring and mixing, granulation and drying are performed to obtain the desired organic-inorganic compound fertilizer for rice.

8. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The specific amount of Bacillus licheniformis added in step S1 is: to control the number of live bacteria in the mixture to 1.7-2.5×10 8 CFU / g.

9. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The stacking fermentation in step S1 specifically refers to: a stack height of 1.5-2m, a stack width of 3-4m, a stack length of 4-7m, a fermentation time of 28-34d, and in the early stage of fermentation, turning the stack every 2-3d. After 2 weeks of fermentation, the frequency of turning the stack is reduced to once every 5-6d.

10. The microbial activated organic-inorganic compound fertilizer for rice according to claim 1, characterized in that: The drying temperature in step S2 is 110-130° C., and the heating rate is 8-12° C. / min.

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