Organic fertilizer treatment method suitable for seed and fertilizer mixed sowing in saline-alkali soil

Abstract

The invention relates to the technical field of organic fertilizer treatment, and discloses an organic fertilizer treatment method suitable for seed and fertilizer mixed sowing in saline-alkali soil, which comprises the following steps: S1, mixing fertilizer and water: mixing an organic fertilizer and water according to a ratio, carrying out deep treatment by using a micro-nano bubble generator, and releasing nano-scale bubbles and micron-scale bubbles in the mixed liquid for 0.5-1 hour; s2, separating fertilizer and water: filtering the fertilizer water treated by the micro-nano bubbles, and adding urea and monopotassium phosphate into the obtained filtrate for preparing foliage spray fertilizer; s3, preparing a seed-fertilizer mixed sowing fertilizer, namely air-drying an organic fertilizer solid, and adding a bacillus inoculant; s4, the organic fertilizer and seeds suitable for growing in the saline-alkali soil are sown in a mixed mode. By means of the innovative process design, namely the combination of the micro-nano bubble inflation technology, the aging period of the organic fertilizer is shortened, the time cost in the production process is reduced, meanwhile, the micro-nano bubble technology is used for sterilization and deodorization, and safe production and utilization of the organic fertilizer are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer treatment, in particular to an organic fertilizer treatment method suitable for mixed sowing of seeds and fertilizers in saline-alkali land. Background Art

[0002] Due to the high salt content, severe soil compaction and low fertility, saline-alkali land has long had a significant impact on crop growth and quality, limiting the effective use of land and the development of agricultural production. Therefore, it is particularly urgent and important to carry out scientific, reasonable and systematic improvement of saline-alkali land.

[0003] In recent years, organic fertilizer has achieved remarkable results in the field of saline-alkali soil improvement in my country. It effectively optimizes the physical structure of the soil, significantly increases the organic matter content in the soil, accelerates the leaching process of salt, and thus promotes the healthy growth and development of crops, achieving a steady increase in crop yields. However, the application method of organic fertilizer plays a vital role in the soil improvement effect. Among them, seed-fertilizer mixing, as a simple and efficient method of organic fertilizer application, is particularly prominent in saline-alkali land improvement. This method achieves "zero distance" contact between seeds and fertilizers by directly mixing seeds and fertilizers before sowing, so that crops can absorb the required nutrients in a timely and efficient manner at the early stage of germination. More importantly, this mixing method also forms a natural "protective barrier", effectively reducing the direct harm of saline-alkali land salt to seeds and improving seed germination rate and survival rate. However, the application of organic fertilizer in saline-alkali land still faces several major challenges and disadvantages: (1) The aging cycle of organic fertilizer is long. High-quality organic fertilizers often require a longer aging time to achieve the best effect, which not only increases the production cycle, but also places higher requirements on management and storage conditions; (2) Possible ecological risks caused by direct application. Direct application of organic fertilizers that have not been fully treated to saline-alkali land may become a breeding ground for harmful pathogens and pests. At the same time, the direct input of excessive nutrients without regulation can easily lead to excessive soil nutrition, resulting in a nutrient stacking effect, which in turn causes soil ecological problems such as continuous cropping obstacles; (3) The problem of high salt content needs to be solved urgently. Some organic fertilizers themselves contain high salt content. If they are directly applied to saline-alkali land, they may aggravate soil salinization and affect crop growth. Therefore, it is a key link to improve the improvement effect to carry out necessary desalination treatment of organic fertilizers before application to reduce their salt content.

[0004] Therefore, in order to solve the problems existing in the application of organic fertilizers, it is urgent to find a reasonable and scientific method for treating organic fertilizers. This method should be able to shorten the aging time of organic fertilizers and improve production efficiency; at the same time, through effective treatment methods, harmful bacteria and pests in organic fertilizers can be reduced to reduce the risk of nutrient excess; more importantly, in view of the high salt content of organic fertilizers themselves, efficient desalination technology should be developed to ensure the safe and effective application of organic fertilizers in saline-alkali land improvement. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an organic fertilizer processing method suitable for mixed sowing of seeds and fertilizers in saline-alkali land, which solves the problems of long aging time of organic fertilizer, more harmful bacteria and pests and high salt content of organic fertilizer.

[0006] To achieve the above purpose, the present invention is implemented by the following technical scheme: an organic fertilizer processing method suitable for mixed seed and fertilizer sowing in saline-alkali land, comprising the following steps:

[0007] S1. Fertilizer-water mixing: organic fertilizer and water are mixed in proportion, and a micro-nano bubble generator is used to fully mix the mixture, and nano-scale bubbles and micro-scale bubbles are released in the mixed liquid for a duration of 0.5h to 1h;

[0008] S2, separation of fertilizer and water, filtering the fertilizer water after nano soaking, adding potassium dihydrogen phosphate to the obtained filtrate for preparation of foliar spray fertilizer;

[0009] S3, seed fertilizer mixed fertilizer production, air drying the organic fertilizer solids, and adding Bacillus agent;

[0010] S4. Mix such organic fertilizers with seeds suitable for growing in saline-alkali land and record the data;

[0011] S5. Set up a control group and an experimental group to conduct a control experiment.

[0012] Preferably, in step S1, the ratio of organic fertilizer to water is in the range of 1:2.5 to 1:5.

[0013] Preferably, in the step S1, the particle size range of the released nano-sized bubbles is 10 nm to 200 nm, and the particle size range of the released micro-sized bubbles is 10 μm to 50 μm.

[0014] Preferably, in the step S4, data including soil pH value, organic matter content, salt content, total nitrogen content, available phosphorus content, available potassium content and total number of microorganisms are recorded.

[0015] Preferably, in the step S4, the soil pH value is determined by a glass electrode method; the organic matter content is determined by potassium dichromate oxidation; the salt content is determined by the conductivity method; the total nitrogen content is determined by the Kjeldahl method; the effective phosphorus content is determined by sodium bicarbonate extraction-molybdenum antimony colorimetry; the available potassium content is determined by ammonium acetate extraction-flame photometry; and the total number of microorganisms is detected according to the method of "NY / T2321-2013 Inspection Procedure for Microbial Fertilizer Products".

[0016] Preferably, in step S5, the control group has only 15 kg of soil sample, and the test group uses a mixture of Bacillus and organic fertilizer in a ratio of 1 L: 100 kg, with a fertilizer application amount of 10%.

[0017] In addition, the present invention also provides an organic fertilizer processing device suitable for mixed sowing of seeds and fertilizers in saline-alkali land, comprising:

[0018] The sedimentation tank, as the basic component of the whole device, is used to carry and assemble the cleaning mechanism and its subordinate structural parts;

[0019] A water pump connected to one end of the sedimentation tank and used for draining the liquid in the sedimentation tank in layers;

[0020] A drain port connected to one side of the outer wall of the sedimentation tank for discharging liquid;

[0021] The cleaning mechanism is arranged inside the sedimentation tank and is used for cleaning out the solid fertilizer.

[0022] Preferably, the cleaning mechanism comprises a slide groove, the slide groove is opened on the upper surface of the sedimentation tank, one end of a slide rod is slidably connected to the inside of the slide groove, and the other end of the slide rod is rotatably connected to a cleaning plate.

[0023] The present invention provides an organic fertilizer processing method suitable for mixed sowing of seeds and fertilizers in saline-alkali land, which has the following beneficial effects:

[0024] 1. The present invention greatly shortens the natural aging cycle of organic fertilizer through innovative process design, namely, the combination of micro-nano bubble inflation technology, effectively reduces the time cost in the production process, and at the same time, fully utilizes the unique advantages of micro-nano bubble technology to achieve efficient sterilization and deodorization. Micro-nano bubbles can penetrate into the tiny pores and corners of organic fertilizer, completely remove harmful microorganisms and odorous substances therein, and create a clean and healthy environment for the production of organic fertilizer, thereby successfully realizing the safe production and utilization of organic fertilizer, and providing high-quality, pollution-free organic fertilizer resources for agricultural production.

[0025] 2. In the process of seed-fertilizer mixing, the wrapping effect of organic fertilizer forms a natural "protective barrier" to avoid direct damage of salt to seeds, effectively isolate direct damage of salt in saline-alkali land, protect the safety of seeds, and improve the germination rate and survival rate of seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of the organic fertilizer processing method in the present invention;

[0027] Figure 2 It is a schematic diagram of the organic fertilizer processing device in the present invention.

[0028] Among them, 1. sedimentation tank; 2. water pump; 3. drain outlet; 4. chute; 5. slide rod; 6. cleaning plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] Please refer to the attached Figure 1 - Attachment Figure 2 The embodiment of the present invention provides an organic fertilizer processing method suitable for mixed sowing of seeds and fertilizers in saline-alkali land, comprising the following steps:

[0032] S1, fertilizer and water mixing, using organic fertilizer and water in proportion, the ratio of organic fertilizer to water is 1:5, using a micro-nano bubble generator to fully mix, releasing nano-level bubbles and micron-level bubbles lasting 0.5h to 1h in the mixed liquid, wherein the nano-level bubbles are sterilized and disinfected, and the micron-level bubbles are oxygenated to further decompose insoluble organic matter, and the released nano-level bubbles have a particle size range of 150nm and the micron-level bubbles have a particle size range of 30μm;

[0033] S2, fertilizer-water separation, filtering the fertilizer water after nano-immersion, adding potassium dihydrogen phosphate to the obtained filtrate for foliar spraying fertilizer. This step is to remove excess water in organic fertilizer, reduce salt content, and retain rich organic nutrients, laying the foundation for subsequent treatment;

[0034] S3. Mixed fertilizer production: air-dry the organic fertilizer solids and add Bacillus agents. The added Bacillus agents can further decompose organic matter and release more nutrients that are easily absorbed by plants. At the same time, it inhibits the growth of harmful microorganisms, forms beneficial microbial communities, and promotes soil ecological balance.

[0035] S4. Mix this type of organic fertilizer with seeds suitable for growing in saline-alkali land, and record data including soil pH, organic matter content, salt content, total nitrogen content, effective phosphorus content, quick-acting potassium content and total number of microorganisms. Use the glass electrode method (soil: water = 1:2.5) to determine soil pH; use potassium dichromate oxidation to determine organic matter content; use the conductivity method to determine salt content; use the Kjeldahl method to determine total nitrogen content; use sodium bicarbonate extraction-molybdenum antimony colorimetry to determine effective phosphorus content; use ammonium acetate extraction-flame photometry to determine quick-acting potassium content; and use the total number of microorganisms according to the method of "NY / T2321-2013 Inspection Procedure for Microbial Fertilizer Products";

[0036] S5. Set up a control group and an experimental group for a control experiment. The control group only has 15 kg of soil samples, and the experimental group is applied with a mixture of Bacillus and organic fertilizer cow dung, the ratio is 1L:100 kg, and the fertilizer amount is 10%.

[0037] The organic fertilizer treated as above has a lower salt content, an optimized nutrient structure, and good air permeability and microbial activity. Mixing such organic fertilizer with seeds suitable for saline-alkali land can significantly improve the germination rate of seeds and the survival rate of seedlings, while reducing the use of chemical fertilizers and reducing agricultural non-point source pollution. The organic fertilizer treatment method significantly improves the efficiency and quality of organic fertilizer treatment. This method uses innovative process design, namely, micro-nano bubble inflation technology to greatly shorten the natural aging cycle of organic fertilizer, effectively reducing the time cost in the production process, and using micro-nano bubble technology to effectively sterilize and deodorize, thus realizing the safe production and utilization of organic fertilizer. In addition, during the seed-fertilizer mixing process, due to the wrapping effect of organic fertilizer, it forms a natural "protective barrier", effectively isolating the direct damage of salt in saline-alkali land, protecting the safety of seeds, and improving the germination rate and survival rate of seeds.

[0038] The results of the soil culture experiment are shown in the following table:

[0039] Table 1 Soil culture experiment results

[0040]

[0041] In addition, the present invention also provides an organic fertilizer processing device suitable for mixed sowing of seeds and fertilizers in saline-alkali land, comprising:

[0042] Sedimentation tank 1, as the basic component of the whole device, is used to carry and assemble the cleaning mechanism and its subordinate structural parts;

[0043] A water pump 2 is connected to one end of the sedimentation tank 1 and is used to drain the liquid in the sedimentation tank 1 in layers;

[0044] A drain port 3, which is connected to one side of the outer wall of the sedimentation tank 1 and is used to discharge liquid;

[0045] A cleaning mechanism, which is arranged inside the sedimentation tank 1 and is used to clean out solid fertilizer;

[0046] The cleaning mechanism comprises a chute 4, which is provided on the upper surface of the sedimentation tank 1, wherein one end of a slide rod 5 is slidably connected to the interior of the chute 4, and a cleaning plate 6 is rotatably connected to the other end of the slide rod 5;

[0047] Specifically, using an organic fertilizer processing device, micro-nano bubbles are mixed with seeds and fertilizers for about half an hour to one hour, and the water-to-water ratio is between 1:2.5 and 1:5. Nano bubble water has the functions of disinfecting insect eggs, oxidizing antibiotics, and breaking up insoluble organic matter. It can turn part of the organic fertilizer into soluble small molecules and part into insoluble large molecules. Small molecules can be made into foliar fertilizer by adding potassium dihydrogen phosphate, and large molecules can be added with Bacillus as seed fertilizer and mixed fertilizer. The nano bubble generator has a variety of inflation methods. The nano bubble particle size is preferably 10-200 nanometers, and the micron bubble is preferably 10-50 microns, which respectively play the role of sterilization and increasing dissolved oxygen, and avoid the occurrence of bubble agglomeration. When the generator is working, the nano bubbles generated It will go directly into the water along this pipe, and transport the bubbles quickly and accurately to where they should go. Moreover, this device does not have only a single function. The gas output of the generator is divided into two types, one is micron bubbles and the other is nano bubbles, which ensures that there are always high concentrations of nano bubbles in the water. The main function of high-content nano bubbles is to increase the dissolved oxygen in the water, dissolve the released oxygen into the water, provide sufficient oxygen support for biological and chemical reactions in the water, and promote various beneficial biochemical processes. Nano bubbles have the important mission of sterilization and anti-inflammation. With their own characteristics and mechanism of action, they can effectively eliminate harmful microorganisms and pathogens, creating a new environment for the entire treatment process. Create a healthy and clean environment. At the same time, in the treatment device, water enters the sedimentation tank 1 from a specific inlet, and the pipe connected to the nano bubble generator can be arranged inside the sedimentation tank 1. When the nano bubble generator is turned on, the bubbles will be fully mixed with the water in the sedimentation tank 1. The liquid in the sedimentation tank 1 enters the water pump 2 to complete the discharge of the surface liquid. Part of the liquid can be extracted as a raw material for foliar fertilizer. After adding potassium dihydrogen phosphate, foliar fertilizer is formed to achieve an efficient treatment effect. At the same time, the residual solid fertilizer at the bottom of the sedimentation tank 1 is cleaned out by the cleaning plate 6. After adding Bacillus species and air drying, it can be used as a mixed fertilizer. The organic fertilizer treatment method can improve the treatment efficiency and quality and shorten the aging time. The aging cycle of organic fertilizer is shortened, which ensures the high yield of crops, reduces costs, sterilizes and deodorizes, and realizes safe production and utilization. In the process of seed-fertilizer mixing, it can protect seeds and improve germination rate and survival rate. Through innovative process design, that is, the combination of micro-nano bubble inflation technology has greatly shortened the natural aging cycle of organic fertilizer, effectively reducing the time cost in the production process. At the same time, the micro-nano bubble technology is used to effectively sterilize and deodorize, realizing the safe production and utilization of organic fertilizer. In addition, in the process of seed-fertilizer mixing, due to the wrapping effect of organic fertilizer, it forms a natural "protective barrier", which effectively isolates the direct invasion of salt in saline-alkali land, protects the safety of seeds, and improves the germination rate and survival rate of seeds.

[0048] 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.

Claims

1. An organic fertilizer processing method suitable for mixed seed and fertilizer sowing in saline-alkali land, characterized in that: The following steps are involved: S1. Fertilizer-water mixing: organic fertilizer and water are mixed in proportion, and a micro-nano bubble generator is used to fully mix the mixture, and nano-scale bubbles and micro-scale bubbles are released in the mixed liquid for a duration of 0.5h to 1h; S2, separation of fertilizer and water, filtering the fertilizer water after nano soaking, adding potassium dihydrogen phosphate to the obtained filtrate for preparation of foliar spray fertilizer; S3, seed fertilizer mixed fertilizer production, air drying the organic fertilizer solids, and adding Bacillus agent; S4. Mix such organic fertilizers with seeds suitable for growing in saline-alkali land and record the data; S5. Set up a control group and an experimental group to conduct a control experiment.

2. A method for treating organic fertilizer suitable for mixed sowing of seeds and fertilizers in saline-alkali land according to claim 1, characterized in that: In the step S1, the ratio of organic fertilizer to water is in the range of 1:2.5 to 1:

5.

3. A method for treating organic fertilizer suitable for mixed sowing of seeds and fertilizers in saline-alkali land according to claim 1, characterized in that: In the step S1, the released nano-bubble particle size ranges from 10 nm to 200 nm, and the released micro-bubble particle size ranges from 10 μm to 50 μm.

4. A method for treating organic fertilizer suitable for mixed sowing of seeds and fertilizers in saline-alkali land according to claim 1, characterized in that: In the step S4, data including soil pH value, organic matter content, salt content, total nitrogen content, available phosphorus content, available potassium content and total number of microorganisms are recorded.

5. A method for treating organic fertilizer suitable for mixed sowing of seeds and fertilizers in saline-alkali land according to claim 1, characterized in that: In the step S4, the soil pH value is determined by a glass electrode method (soil: water = 1:2.5); the organic matter content is determined by potassium dichromate oxidation; the salt content is determined by the conductivity method; the total nitrogen content is determined by the Kjeldahl method; the effective phosphorus content is determined by sodium bicarbonate extraction-molybdenum antimony colorimetry; and the available potassium content is determined by ammonium acetate extraction-flame photometry; The total number of microorganisms is tested according to the method of "NY / T2321-2013 Inspection Procedure for Microbial Fertilizer Products".

6. A method for treating organic fertilizer suitable for mixed sowing of seeds and fertilizers in saline-alkali land according to claim 1, characterized in that: In step S5, the control group only had 15 kg of soil sample, and the test group applied a mixture of Bacillus and organic fertilizer (cow dung) at a ratio of 1 L: 100 kg, with a fertilizer application rate of 10%.

7. An organic fertilizer processing device suitable for mixed sowing of seeds and fertilizers in saline-alkali land, applied to an organic fertilizer processing method suitable for mixed sowing of seeds and fertilizers in saline-alkali land according to any one of claims 1 to 6, characterized in that: include: The sedimentation tank (1) is a basic component of the whole device, used to carry and assemble the cleaning mechanism and its subordinate structural parts; A water pump (2) is fixedly connected to one end of the sedimentation tank (1) and is used to drain the liquid in the sedimentation tank (1) in layers; A drain port (3) connected to one side of the outer wall of the sedimentation tank (1) for discharging liquid; A cleaning mechanism is arranged inside the sedimentation tank (1) and is used to clean out solid fertilizer.

8. The organic fertilizer processing device suitable for mixed sowing of seeds and fertilizers in saline-alkali land according to claim 7, characterized in that: The cleaning mechanism comprises a slide groove (4), wherein the slide groove (4) is opened on the upper surface of the sedimentation tank (1), one end of a slide rod (5) is slidably connected inside the slide groove (4), and the other end of the slide rod (5) is rotatably connected to a cleaning plate (6).

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