Method for losing weight and increasing yield in agriculture by using biomass thin-layer graphite carbon material

Abstract

The invention discloses a method for reducing weight and increasing yield of a biomass thin-layer graphite carbon material in agriculture, and relates to the technical field of environment-friendly chemical fertilizers. The method for reducing weight and increasing yield of the biomass thin-layer graphite carbon material in agriculture comprises the following steps: crushing biomass into powder, pyrolyzing and carbonizing the biomass powder in an inert atmosphere, preserving heat to obtain biochar, performing high-temperature treatment on the biochar, and preserving heat to increase the graphitization degree and reduce carbon layers, so as to obtain the biomass thin-layer graphite carbon material. A biomass thin-layer graphite carbon material is obtained; the biomass thin-layer graphite carbon material is dispersed in water to obtain a weight-losing and yield-increasing reagent, the weight-losing and yield-increasing reagent is sprayed on leaf surfaces of crops, and the biomass thin-layer graphite carbon with a thin-layer structure is intercalated with chloroplast, so that excessive electrons in crop bodies can be led out, oxygen-containing free radicals can be inhibited, and the oxidation resistance and photosynthesis can be improved; the fertilizer can be applied to foliage spraying of crops to improve the fertilizer utilization rate, reduce the use of chemical fertilizers and achieve the purposes of losing weight and increasing yield.

Description

Technical Field

[0001] The invention relates to the field of environmentally friendly fertilizers, and in particular to a method for reducing weight and increasing production in agriculture using a biomass thin-layer graphite carbon material. Background Art

[0002] Fertilizers have a significant impact on crop yields. They provide crops with essential nutrients, such as nitrogen, phosphorus, and potassium, which are essential for crop growth and development. Scientific fertilization, reasonable control of fertilizer dosage, combined with the use of organic fertilizers, and effective agricultural management measures are the key to improving fertilizer utilization, ensuring crop yield and quality, and protecting the soil and environment.

[0003] However, the current utilization rate of chemical fertilizers is low. On the one hand, even if the use of chemical fertilizers is increased, the yield and quality of crops may not necessarily increase simultaneously; on the other hand, excessive use of chemical fertilizers will lead to the deterioration of soil structure. Summary of the invention

[0004] The present invention is made in view of the above-mentioned problems and provides a method for reducing weight and increasing production in agriculture using biomass thin-layer graphite carbon materials.

[0005] The present invention provides a method for reducing weight and increasing production in agriculture using a biomass thin-layer graphite carbon material, comprising the following steps: crushing biomass; pyrolyzing and carbonizing the biomass powder under an inert atmosphere and then keeping it warm to obtain biochar; then subjecting the biochar to high-temperature treatment and then keeping it warm to obtain a biomass thin-layer graphite carbon material; dispersing the biomass thin-layer graphite carbon material in water to obtain a weight-reducing and production-increasing agent, and spraying the weight-reducing and production-increasing agent on the leaves of crops.

[0006] In some embodiments of the present invention, the spraying application amount is 45 g / hectare to 90 g / hectare.

[0007] In some embodiments of the present invention, the temperature of the pyrolysis carbonization is 500° C. to 1500° C., and the insulation time after the pyrolysis carbonization is 2 h to 4 h.

[0008] In some embodiments of the present invention, the temperature of the high temperature treatment is 2000° C. to 3000° C., and the insulation time after the high temperature treatment is 2 h to 4 h.

[0009] In some embodiments of the present invention, after the step of "spraying the weight-reducing and yield-increasing agent on the leaves of crops", top dressing is also performed.

[0010] In some embodiments of the present invention, the method of topdressing includes one of flushing, burying, broadcasting, drip irrigation, cannula infiltration, and foliar spraying.

[0011] In some embodiments of the present invention, the type of fertilizer used for topdressing includes an application amount of the topdressing that is 60wt% to 100% of the application amount of the biomass thin-layer graphite carbon material.

[0012] In some embodiments of the present invention, the crop comprises one of soybean, potato, corn, wheat, tomato, broad bean, red bean, and Brassica napus.

[0013] The beneficial effects that can be achieved by the present invention are:

[0014] The present invention provides a method for reducing weight and increasing production in agriculture using a biomass thin-layer graphite carbon material. The biomass thin-layer graphite carbon material is used as a foliar spray fertilizer in agriculture. The thin-layer structure of the biomass thin-layer graphite carbon is intercalated with the chloroplast to export excess electrons in the crop body, inhibit oxygen-containing free radicals, improve antioxidant properties and photosynthesis, further promote crop growth, improve fertilizer utilization, enhance crop stress resistance, promote crop early maturity, improve crop economic value, environmental friendliness and cost-effectiveness, etc., to achieve the purpose of reducing weight and increasing production. At the same time, the biomass thin-layer graphite carbon material preparation method and application method of the present application are simple, green and safe, low-cost, environmentally friendly and pollution-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the yield change result of an embodiment of the present invention and a comparative example;

[0016] Figure 2 The yield change results of an embodiment of the present invention and a comparative example after 60wt% topdressing;

[0017] Figure 3 The yield change results after 100wt% topdressing in one embodiment of the present invention and the comparative example;

[0018] Figure 4 The test results of an embodiment of the present invention and a comparative example after losing 20wt% of weight;

[0019] Figure 5 is a Raman spectrum of biochar according to an embodiment of the present invention;

[0020] Figure 6 This is a Raman spectrum of the biomass thin-layer graphite carbon according to an embodiment of the present invention.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims.

[0023] The "range" disclosed in the present invention is defined in the form of a lower limit and an upper limit, and a given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundaries of the particular range. The range defined in this way can be inclusive or exclusive of the end values, and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 60 to 120 and 80 to 110 is listed for a particular parameter, it is understood that a range of 60 to 110 and 80 to 120 is also expected. In addition, if the minimum range values ​​1 and 2 are listed, and if the maximum range values ​​3, 4 and 5 are listed, the following ranges can all be expected: 1 to 3, 1 to 4, 1 to 5, 2 to 3, 2 to 4 and 2 to 5. In the present invention, unless otherwise specified, the numerical range "a to b" represents an abbreviation of any real number combination between a and b, wherein a and b are both real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" are listed in this document, and "0-5" is just an abbreviation of these numerical combinations. In addition, when a parameter is expressed as an integer ≥ 2, it is equivalent to disclosing that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0024] If not otherwise specified, all embodiments and optional embodiments of the present invention can be combined with each other to form a new technical solution.

[0025] Unless otherwise specified, all technical features and optional technical features of the present invention can be combined with each other to form a new technical solution.

[0026] If not otherwise specified, all steps of the present invention may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), which means that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may further include step (c), which means that step (c) may be added to the method in any order, for example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

[0027] Fertilizers have a significant impact on crop yields. They provide crops with essential nutrients, such as nitrogen, phosphorus, and potassium, which are essential for crop growth and development. Scientific fertilization, reasonable control of fertilizer dosage, combined with the use of organic fertilizers, and effective agricultural management measures are the key to improving fertilizer utilization, ensuring crop yield and quality, and protecting the soil and environment.

[0028] However, the current utilization rate of chemical fertilizers is low. On the one hand, even if the use of chemical fertilizers is increased, the yield and quality of crops may not necessarily increase simultaneously; on the other hand, excessive use of chemical fertilizers may lead to the deterioration of soil structure and affect the environment.

[0029] In view of this, this scheme proposes a method for reducing weight and increasing production in agriculture using a biomass thin-layer graphite carbon material, comprising the following steps:

[0030] pulverizing the biomass into powder;

[0031] Under an inert atmosphere, pyrolyzing and carbonizing the biomass powder and then keeping it warm to obtain biochar;

[0032] The biochar is further subjected to high temperature treatment and then kept warm to increase its graphitization degree and reduce the carbon layer to obtain a biomass thin-layer graphite carbon material;

[0033] The biomass thin-layer graphite carbon material is dispersed in water to obtain a weight-reducing and yield-increasing reagent, and the weight-reducing and yield-increasing reagent is sprayed on the leaves of crops.

[0034] The method of reducing weight and increasing production in this scheme applies biomass thin-layer graphite carbon materials to agriculture. The thin-layer structure of biomass graphite carbon is intercalated with chloroplasts to export excess electrons in crops, inhibit oxygen-containing free radicals, improve antioxidant properties and photosynthesis, further promote crop growth, improve fertilizer utilization, enhance crop stress resistance, promote early maturity of crops, improve crop economic value, environmental friendliness and cost-effectiveness, etc., to achieve the purpose of reducing weight and increasing production. In addition, biomass thin-layer graphite carbon materials can fix nitrogen in the environment and release nutrients for continuous absorption and utilization by crops; and biomass thin-layer graphite carbon materials are loose and porous, have good air permeability and water permeability, large specific surface area, strong adsorption and chelation capabilities, can improve the structure and porosity of the soil, increase the water and fertilizer storage capacity of the soil, and improve the rhizosphere environment of crops.

[0035] At the same time, the biomass thin-layer graphite carbon material of this scheme has a wide range of sources, simple preparation and application methods, and is green, safe, low-cost, environmentally friendly and pollution-free.

[0036] In some embodiments, the inert atmosphere includes nitrogen, argon, and the like.

[0037] In some embodiments, the biomass thin-layer graphite carbon material is dispersed in water by ultrasonic dispersion, ball mill wet grinding, high-pressure homogenization, and the like.

[0038] In some embodiments, the spraying dosage is 45 g / ha to 90 g / ha. Setting the dosage within this range can achieve a better synergistic effect and maximize the effect of the weight loss and yield increase agent.

[0039] In some embodiments, the temperature of the pyrolysis carbonization is 500°C to 1500°C, and the insulation time after the pyrolysis carbonization is 2h to 4h. Different pyrolysis temperatures will affect the carbon retention and stability of the carbon, and the length of the insulation time will affect the pore structure characteristics of the carbon. Preferably, the temperature of the pyrolysis carbonization is 700°C to 1000°C.

[0040] In some embodiments, the temperature of the high temperature treatment is 2000°C to 3000°C, and the insulation time after the high temperature treatment is 2h to 4h. This temperature range can transform the unstable amorphous carbon structure into an orderly arranged graphite structure by heat. If the temperature of the high temperature treatment is lower than 2000°C, it may not be enough to trigger the graphitization process, resulting in the material being unable to form an ideal graphite structure, thereby affecting its performance; if the temperature is higher than 3000°C, it will be over-graphitized, resulting in a decrease in certain properties of the material. Preferably, the temperature of the high temperature treatment is 2600-2800°C.

[0041] In some embodiments, after the step of "spraying the weight-reducing and yield-increasing agent on the leaves of crops", topdressing is also performed. Topdressing is a term in agricultural production, which refers to the additional fertilizer applied in addition to the basic fertilizer (also called base fertilizer) applied before or during sowing in order to meet the nutrient needs of crops at different growth stages during the growth of crops. The main purpose of topdressing is to supplement nutrients, promote growth, increase yield, improve quality, and enhance stress resistance.

[0042] In some embodiments, the method of topdressing includes one of flushing, burying, broadcasting, drip irrigation, cannula infiltration, and foliar spraying. These methods can be selected according to the specific needs and growth conditions of the crop.

[0043] In some embodiments, the type of fertilizer used for topdressing includes an application amount of the topdressing that is 60wt% to 100wt% of the application amount of the biomass thin-layer graphite carbon material.

[0044] In some embodiments, the crop comprises one of soybean, potato, corn, wheat, tomato, broad bean, red bean, and rapeseed.

[0045] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the following specific embodiments are only used to explain the present invention, and are not used to limit the present invention.

[0046] Example 1

[0047] The biomass is crushed to obtain powder, and pyrolysis carbonization is performed under nitrogen atmosphere, the pyrolysis carbonization temperature is 500-1500°C, preferably 700-1000°C, the heat preservation time is 2-4h, and the biochar is obtained after natural cooling. The biochar is further subjected to high-temperature treatment under nitrogen atmosphere, the use temperature is 2000-3000°C, preferably 2600-2800°C, and the heat preservation time is 2-4h, so that it is converted into an orderly arranged graphite structure by heat, the degree of graphitization is improved, and the biomass thin-layer graphite carbon material is obtained after natural cooling, and the biomass thin-layer graphite carbon material is uniformly dispersed in water by ultrasound.

[0048] Test location: The main field soybean producing area in Northeast China. The climate in this area is suitable for soybean growth and the soil conditions are diverse, which is conducive to evaluating the effect of biomass thin-layer graphite carbon materials under different soil conditions.

[0049] Experimental field area: The experimental field area is set at 3 hectares.

[0050] Experimental season: Spring is conducive to observing the effect of biomass thin-layer graphite carbon materials on the soybean growth cycle.

[0051] The amount of biomass thin layer graphite carbon material used: 60g / hectare.

[0052] Spraying method: Conventionally spray commercial fertilizers, and use modern spraying equipment, such as drones or sprayers, to evenly spray the biomass thin layer of graphite carbon solution on the surface of soybean leaves. The spraying time is selected during the flowering and pod-setting stages of soybean growth.

[0053] Example 2

[0054] 60% nitrogen fertilizer was added, and the rest was the same as in Example 1.

[0055] Example 3

[0056] 100% nitrogen fertilizer was added, and the rest was the same as in Example 1.

[0057] Example 4

[0058] Commercially available fertilizers and 60 g / hectare of biomass thin-layer graphite carbon solution were conventionally sprayed on the leaf surface of field potatoes. The amount of commercially available fertilizer was 80% of that in Example 1. Others were referenced to Example 1.

[0059] Comparative Example 1

[0060] After conventional fertilization, the biomass thin layer graphite carbon solution was not sprayed, and the rest was referred to Example 1.

[0061] Comparative Example 2

[0062] After conventional fertilization, the biomass thin layer graphite carbon solution was not sprayed, and the rest was referred to Example 2.

[0063] Comparative Example 3

[0064] After conventional fertilization, the biomass thin layer graphite carbon solution was not sprayed, and the rest was referred to Example 3.

[0065] Comparative Example 4

[0066] Commercially available fertilizers were sprayed conventionally, and the rest were referred to Example 4.

[0067] See the attached manual for results Figures 1 to 6 , Figure 1 The soybean yields of Example 1 and Comparative Example 1 (CK) are shown in Table 1. The yield of Example 1 is increased by 27.5% compared with Comparative Example 1. Figure 2 The soybean yield of Example 2 and Comparative Example 2 (CK) is shown in Table 2. After adding 60 wt% nitrogen fertilizer, the soybean yield of Example 2 increased by 6.5% compared with Comparative Example 2. Figure 3 The soybean yield of Example 3 and Comparative Example 3 (CK) is shown in Figure 3. After adding 100 wt% nitrogen fertilizer, the soybean yield of Example 3 increased by 9.4% compared with Comparative Example 3. Figure 4 The potato yields of Example 4 and Comparative Example 4 (CK) are shown in Table 1. After reducing the application amount of conventional fertilizer by 20%, the potato yield of Example 4 increased by 5.6% compared with Comparative Example 4. Figure 5 is the Raman spectrum of the biochar in Example 1, Figure 6 The Raman spectrum of the biomass thin-layer graphite carbon in Example 1, 1360 cm -1 The characteristic peak nearby is the D peak, which is related to amorphous carbon and structural defects in carbon materials, 1560cm -1 The G peak is located at , which is related to the ordered aromatic lamellar structure in the material.

[0068] The above results confirm that this scheme applies biomass thin-layer graphite carbon materials to agriculture. The thin-layer structure of biomass thin-layer graphite carbon and chloroplast intercalation can export excess electrons in crops, inhibit oxygen-containing free radicals, improve antioxidant properties and photosynthesis, further promote crop growth, improve fertilizer utilization, enhance crop stress resistance, promote crop early maturity, improve crop economic value, environmental friendliness and cost-effectiveness, etc., to achieve the purpose of weight loss and increased production. At the same time, the biomass thin-layer graphite carbon material of this application is derived from biomass, has a wide range of sources, and the preparation method and application method are simple, green and safe, low-cost, environmentally friendly and pollution-free.

[0069] It should be noted that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments are merely examples, and embodiments having substantially the same structure as the technical idea and exerting the same effects within the scope of the technical solution of the present invention are all included in the technical scope of the present invention. In addition, within the scope of the main purpose of the present invention, various modifications that can be thought of by those skilled in the art to the embodiments, and other methods of combining some of the constituent elements in the embodiments to construct are also included in the scope of the present invention.

Claims

1. A method for reducing weight and increasing production of biomass thin-layer graphite carbon materials in agriculture, characterized in that: The following steps are involved: pulverizing the biomass into powder; Under an inert atmosphere, pyrolyzing and carbonizing the biomass powder and then keeping it warm to obtain biochar; The biochar is further subjected to high temperature treatment and then kept warm to obtain a biomass thin-layer graphite carbon material; The biomass thin-layer graphite carbon material is dispersed in water to obtain a weight-reducing and yield-increasing reagent, and the weight-reducing and yield-increasing reagent is sprayed on the leaves of crops.

2. The method for reducing weight and increasing production according to claim 1, characterized in that: The spraying application amount is 45 g / hectare to 90 g / hectare.

3. The method for reducing weight and increasing production according to claim 1, characterized in that: The temperature of the pyrolysis carbonization is 500° C. to 1500° C., and the insulation time after the pyrolysis carbonization is 2 h to 4 h.

4. The method for reducing weight and increasing production according to claim 1, characterized in that: The temperature of the high temperature treatment is 2000° C. to 3000° C., and the insulation time after the high temperature treatment is 2 h to 4 h.

5. The method for reducing weight and increasing production according to claim 1, characterized in that: After the step of "spraying the weight-reducing and yield-increasing reagent on the leaves of crops", top dressing is also carried out.

6. The method for reducing weight and increasing production according to claim 5, characterized in that: The method of topdressing comprises one of flushing, burying, broadcasting, drip irrigation, cannula infiltration and foliar spraying.

7. The method for reducing weight and increasing production according to claim 5, characterized in that: The type of fertilizer used for topdressing includes an application amount of the topdressing that is 60wt% to 100wt% of the application amount of the biomass thin-layer graphite carbon material.

8. The method for reducing weight and increasing production according to claim 1, characterized in that: The crops include one of soybean, potato, corn, wheat, tomato, broad bean, red bean and rapeseed.

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