Seed germination-germination accelerating method and device using metal hydride

Abstract

The invention discloses a seed germination-germination accelerating method and device by using metal hydride. The seed germination-germination accelerating method comprises the following steps: step 1, enabling seeds to be in a floating state by using high-pressure airflow; 2, metal hydride powder is subjected to atomization treatment, and a weak acid solution and water are subjected to atomization treatment; and step 3, spraying the smog-state metal hydride, the fog-state weak acid and the fog-state water to the floating seeds in a controlled manner, and reacting to obtain a hydrogen-containing fog-state mixture to promote seed germination-germination acceleration. The hydrogen release concentration and speed are accurately controlled, nutrients efficiently, stably, uniformly and comprehensively cover the surfaces of the seeds through a high-pressure suspension means, the germination-germination accelerating period is shortened, the germination rate is effectively increased, and a novel efficient, uniform and safe automatic germination-germination accelerating technology is provided for the technical field of seed germination and germination accelerating.

Description

Technical Field

[0001] The invention relates to the technical field of seed germination and accelerated germination, and in particular to a seed germination and accelerated germination method utilizing metal hydride and a device thereof. Background Art

[0002] In the rice production process, two main cultivation methods are used: direct seeding of rice seeds and transplanting of rice seed seedlings. Among them, the rice seed seedling transplanting method has become the mainstream technology for rice production due to its significant advantages in improving rice yield and quality. In order to give full play to the potential of this technology and improve the success rate of rice seed seedling cultivation and the overall quality of seedlings, the key lies in the two core links of germination and germination. The efficiency of germination and germination directly affects the growth vitality of seedlings and the yield performance in the later stage, and is an important node that cannot be ignored in the seed seedling process. Under the conditions of the same rice variety, how to optimize the germination and germination technology to cultivate strong and healthy seedlings has become the primary goal of achieving high-yield and high-quality rice production.

[0003] In the research of rice seed germination technology, hydrogen has attracted widespread attention because of its ability to improve the antioxidant capacity of seeds, activate cell metabolism and promote seed germination. As a safe and efficient biostimulant, hydrogen can significantly improve the germination rate and germination speed of seeds by optimizing the microenvironment around the seeds. Therefore, in recent years, the use of hydrogen technology for seed germination has become a research hotspot and has gradually been applied to agricultural production. However, different hydrogen supply methods have shown great differences in efficiency, safety and uniformity in actual operations, and further optimization is urgently needed to meet the high standards of rice seedling cultivation.

[0004] In recent years, although the use of hydrogen in seed germination technology has gradually received attention, there are still large technical differences in different hydrogen supply methods and application methods. Some technologies introduce hydrogen-rich environments to improve seed germination conditions, but they still face many challenges in terms of hydrogen supply efficiency, hydrogen distribution uniformity, and convenience of actual operation. These challenges directly affect the stability of the germination effect and the feasibility of large-scale promotion, forcing researchers to continuously explore more efficient, uniform and easy-to-operate germination methods.

[0005] For example, invention CN114375641B discloses a hydrogen-rich water seed germination box, which draws hydrogen and oxygen overflowed from electrolysis into the airbag through a suction module, and then discharges most of the air in the seed soaking chamber, and can draw hydrogen and oxygen in the airbag into the seed soaking chamber, and can draw hydrogen and oxygen in the airbag into the germination chamber, and can also draw electrolyzed water in the seed soaking chamber into the watering mechanism. However, this method has low hydrogen production efficiency and consumes a lot of electricity. The speed of hydrogen generation is limited, and it is difficult to quickly meet the needs of large-scale seed treatment. Moreover, after the hydrogen generated by electrolysis is mixed with oxygen, the hydrogen concentration is difficult to accurately control, resulting in uneven hydrogen concentration in the germination environment, which affects the seed treatment effect.

[0006] Invention CN116636348A discloses a cultivation method for improving the germination rate of radish seeds. This method soaks the pretreated seeds in hydrogen-rich water to remove the residual alkali in the radish seeds. The hydrogen in the hydrogen-rich water can increase the antioxidant enzyme activity of the radish seeds, reduce oxidative damage, and increase the germination rate of the radish seeds. However, the seed soaking method only acts on the surface of the seeds, and the distribution density of the seeds in the liquid is high, resulting in uneven hydrogen contact, which affects the stability of the germination effect. In addition, seed soaking usually requires long-term soaking, and the seed treatment cycle is long, which is difficult to adapt to the needs of rapid germination; a large amount of liquid remains on the surface of the seeds after soaking, which is easy to cause mold growth or seed corruption, which is not conducive to subsequent cultivation.

[0007] Therefore, how to provide an efficient and stable hydrogen supply method that can accurately control the concentration and speed of hydrogen release, while evenly and comprehensively covering the seed surface, effectively improving the germination rate, shortening the processing time and avoiding the unevenness and safety hazards in traditional technologies is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0008] In view of the defects existing in the above-mentioned prior art, the present invention provides a seed germination-accelerated germination method and a device thereof using metal hydrides. The seed germination-accelerated germination method of the present invention is efficient and stable, the hydrogen supply is accurate, the treatment is uniform, and the process and the corresponding device are simple, the automatic monitoring and control are sensitive, the production cost is low, and it is easy to promote and apply.

[0009] In a first aspect, the present invention provides a seed germination-acceleration method using metal hydride, comprising the following steps:

[0010] Step 1: Use high-pressure airflow to make the seeds float;

[0011] Step 2, atomizing the metal hydride powder, the weak acid solution and water;

[0012] Step 3: spraying the metal hydride in the form of smoke, the weak acid in the form of mist and the water in the form of mist onto the floating seeds respectively in a controlled manner, and obtaining a hydrogen-containing mist mixture through reaction, so as to promote the germination of the seeds.

[0013] The present invention utilizes high-pressure airflow to suspend the seeds, so that various seeds are in a relatively uniform external environment, which is conducive to applying the same nutrients and regulation methods to the seeds, reducing factors affecting the seeds, and improving the germination-germination efficiency and germination rate as a whole.

[0014] Preferably, the metal hydride comprises MgH 2 KBH 4 Mg(BH 4 ) 2 , Ca(BH 4 ) 2 , CaH 2 , KH at least one;

[0015] The weak acid solution has a concentration of 0.05-2.0 mol / L and contains at least one of humic acid, acetic acid, citric acid, carbonic acid, metasilicic acid, and boric acid solutions.

[0016] Metal hydrides (such as MgH 2 KBH 4 As hydrogen supply materials, the weak acid solution releases hydrogen stably by reacting with the weak acid solution, providing a hydrogen-rich microenvironment for the seeds. The weak acid solution adjusts the pH value around the seeds to a suitable range for germination (generally pH 5.0-7.0) by providing H+ ions, creating favorable environmental conditions for the germination process. The intensity and rate of the reaction between metal hydride and weak acid solution can be controlled within the range of 0.05-0.2 mol / L by the acid concentration, ensuring a mild and stable reaction.

[0017] Secondly, some metal ions (such as Ca 2+ , K + Humic acid, acetic acid, and citric acid can further promote the metabolic activity of seeds, help improve the water absorption capacity and cell activity of seeds. Humic acid, acetic acid, and citric acid can soften the seed coat, increase the water absorption of seeds, and provide organic nutrition, thus further promoting seed germination.

[0018] Preferably, the mass ratio of the metal hydride, the weak acid solution and water is 1:(0.01-100):(100-10000).

[0019] In the suspended state, different germination catalysis strategies are configured according to the characteristics of seed type and germination conditions. Those skilled in the art can formulate and apply them based on the material ratios explored in the present invention and the ratio of nutrients to seeds.

[0020] Preferably, the high pressure airflow satisfies at least one of the following conditions:

[0021] (1) The pressure of the high-pressure airflow is 0.1-10 atmospheres;

[0022] (2) the high-pressure airflow is released at least from below the seeds;

[0023] (3) It includes multiple high-pressure air flow inlets, and the floating position of the seeds is regulated by adjusting the air pressure and / or direction of each high-pressure air flow inlet.

[0024] The high-pressure airflow of the present invention can firstly blow the seeds up to stably suspend them. On this basis, the airflow can be controlled to position the seeds to a height area or horizontal position suitable for contacting nutrients.

[0025] Preferably, the mist water is controlled to be sprayed through the first spray port, the mist weak acid is controlled to be sprayed through the second spray port, and the smoke metal hydride is controlled to be sprayed through the third spray port, and the first spray port, the second spray port and the third spray port meet at least one of the following conditions:

[0026] (1) The number ratio of the first spray port, the second spray port and the third spray port is (1-20): (1-10): (1-10);

[0027] (2) When the third injection port is opened, at least one of the first injection port and the second injection port is opened at the same time;

[0028] (3) In the horizontal plane where the third injection port is provided, at least one first injection port is provided, and / or at least one second injection port is provided.

[0029] Preferably, the first spraying port, the second spraying port and the third spraying port are respectively included in plurality and are distributed around the floating position of the seeds.

[0030] By controlling the number ratio of the first spray port, the second spray port and the third spray port (1-20:1-10:1-10), the spray amount of each substance can be simply and effectively adjusted according to the processing requirements to ensure that the mist water, mist weak acid and smoke metal hydride are mixed in a suitable proportion to form a stable hydrogen-containing mist mixture. The setting of the number ratio directly affects the reaction intensity of the mixture and the generation rate of hydrogen. By adjusting the number ratio of the spray ports, the germination requirements of seeds of different types or states can be flexibly adapted to ensure sufficient reaction and optimal effect.

[0031] When the third spray port (spraying smoky metal hydride) is opened, at least one of the first spray port (spraying mist water) and the second spray port (spraying mist weak acid) is opened at the same time, ensuring that the smoky metal hydride reacts with water and / or weak acid synchronously to generate hydrogen at the moment of spraying, thereby avoiding material waste, delayed or incomplete reaction caused by single spraying of metal hydride.

[0032] The present invention ensures that the reaction materials are mixed in time in the same plane to form a uniformly reacting mist mixture by arranging at least one first spraying port and / or one second spraying port in the horizontal plane where the third spraying port is arranged. The problem of uneven reaction caused by different spraying directions or unreasonable spatial position distribution after the spraying of each substance is avoided. At the same time, this horizontal distribution facilitates the rapid diffusion of the mixture, further improving the uniformity of seed coverage.

[0033] The floating position referred to in the present invention is a certain height area within a certain floating space, such as a germination-germination container, which is more suitable for seed floating. For example, when the height of the entire floating space is H (such as the height of the internal space of the germination-germination container), the vertical height of the floating position is h, satisfying: H / 8≤h<H / 2, preferably H / 6≤h≤2H / 5, and the floating position passes through the central plane of the floating space at a height of H / 2, that is, the floating position covers the middle plane of the floating space and does not contact the bottom and top surfaces of the floating space, so that the seeds will not contact the bottom and top surfaces of the floating space during the floating process, and their surface can evenly absorb nutrients.

[0034] Preferably, the seed satisfies at least one of the following conditions:

[0035] (1) The seeds have been pre-treated with disinfection;

[0036] (2) seeds are pre-screened;

[0037] (3) The seeds are kept in an environment with a temperature of 25-60°C;

[0038] (4) The seeds are kept in an environment with a pH value of 5.0-7.0.

[0039] Preferably, the total amount of metal hydride powder, misted weak acid and misted water sprayed in a single time is 0.01-100g, the mass ratio of the hydrogen-containing mist mixture obtained in a single reaction to the seeds is (0.1-15): (1-10000), the spraying frequency is 1-20 times / day, and the duration is 1-50s / time. Based on the determined spraying frequency, the nutrients can be sprayed at equal intervals every day, or concentrated spraying can be set in a certain period of time.

[0040] The present invention forms an overall automated control method and system through strict seed control and pretreatment, accurate ratio and regulation of materials, and real-time monitoring and adjustment of the environment, which can further improve the efficiency and quality of seed germination.

[0041] In a second aspect, the present invention further provides a seed germination-germination device for implementing the method, comprising:

[0042] A germination-acceleration container, comprising a plurality of high-pressure air flow inlets and a plurality of spray ports;

[0043] The atomization unit comprises a water atomization device, a weak acid atomization device and a metal hydride atomization device, wherein the water atomization device, the weak acid atomization device and the metal hydride atomization device are respectively connected to at least one spray port;

[0044] The control unit includes a central processor and a pH sensor and a temperature sensor arranged in the germination-germination container. The central processor is connected with the pH sensor, the temperature sensor, the atomization unit and a high-pressure air source providing a high-pressure airflow.

[0045] The germination-acceleration container of the present invention is preferably made of a transparent material (eg, transparent plastic) so that the suspended / floating state of a large number of seeds contained inside can be easily observed.

[0046] Preferably, the number of the high-pressure air flow inlets is 1-30, and the central processing unit independently controls each high-pressure air flow inlet.

[0047] More preferably, the number of high-pressure air inlets is selected according to the size and volume of the cultivated seeds and the volume of the germination-germination container, and the high-pressure air inlets meet the following conditions:

[0048] When the number of high-pressure airflow inlets is less than 5 (not included), the high-pressure airflow inlets are preferably evenly distributed at the bottom of the germination-germination container to provide sufficient upward airflow to keep the seeds in a floating state;

[0049] When the number of high-pressure airflow inlets is greater than 5 and less than 10, at least one direction-adjustable high-pressure airflow inlet is provided on the side wall, and the remaining high-pressure airflow inlets are evenly distributed at the bottom of the germination-germination container. The high-pressure airflow inlets on the side wall are conducive to quickly adjusting the spatial position of the seeds;

[0050] When the number of high-pressure airflow inlets is greater than 10 (inclusive) and less than 20 (inclusive), a plurality of direction-adjustable high-pressure airflow inlets can be symmetrically arranged on the side wall, and the remaining high-pressure airflow inlets are evenly distributed at the bottom of the germination-germination container, so as to further improve the convenience of adjusting the seed space position;

[0051] When the number of the high-pressure air flow inlets is more than 20, a plurality of high-pressure air flow inlets are arranged at least at two different heights on the side wall, and the remaining high-pressure air flow inlets are evenly distributed at the bottom of the germination-accelerating container.

[0052] Preferably, at the bottom of the germination-acceleration container, the high-pressure air flow inlets are symmetrically and evenly distributed, for example, forming at least one annular layout, so that the airflow pushes the seeds to float upward from the bottom, while avoiding seed accumulation caused by overly concentrated airflow, wherein at least one high-pressure air flow inlet is arranged at the center of the bottom to enhance the airflow intensity in the central area.

[0053] The high-pressure airflow inlets with adjustable directions arranged on the side walls of the germination-acceleration container guide the airflow to flow into the seedling raising space to prevent the seeds from accumulating on the side walls or the bottom edge area. This design utilizes the dynamic effect of the airflow to force the seeds to flow back from the edge area to the center or floating area of ​​the germination-acceleration container, ensuring that the seeds are evenly distributed throughout the germination-acceleration container, further improving the uniformity of the treatment effect and the germination efficiency.

[0054] Furthermore, high-pressure airflow inlets can be arranged at different heights of the germination-acceleration container, and the uniform distribution of seeds in the horizontal and vertical directions can be ensured by adjusting the direction and intensity of airflow at each layer.

[0055] Preferably, the number of the spray ports is 3-40, among which the number of the first spray ports connected to the moisture atomization device is 1-20, the number of the second spray ports connected to the weak acid atomization device is 1-10, and the number of the third spray ports connected to the metal hydride atomization device is 1-10; the central processing unit controls each spray port independently.

[0056] The present invention has at least the following beneficial effects:

[0057] (1) The present invention introduces aerosol metal hydride, mist weak acid and mist water for mixing, and utilizes their chemical reaction characteristics to provide nutrients such as hydrogen-containing mist mixture to germinate and accelerate the germination of seeds. The hydrogen released by the metal hydride and the weak acid microenvironment can significantly promote the activation of active enzymes inside the seeds, improve cell metabolism efficiency, and accelerate the seed germination process. In addition, the ratio of the mixture has been precisely optimized to ensure that the chemical reaction is stable, efficient and has a moderate pH value, thereby effectively overcoming the problems of low efficiency and long time in traditional germination methods, and greatly improving the germination rate of seeds.

[0058] (2) The present invention uses high-pressure airflow to make the seeds float, and uses the controllability of the airflow and the multi-directional inlet design to make the seeds float evenly distributed in three-dimensional space. Compared with the traditional planar treatment method, this method can ensure that the mixture of mist metal hydride, weak acid and water evenly covers the seed surface, thereby maximizing the chemical reaction area of ​​the seeds and avoiding differences in germination rate caused by uneven contact. At the same time, the pressure, direction and number of inlets of the airflow can be flexibly adjusted according to the characteristics of the seeds, further improving the stability and efficiency of the treatment.

[0059] (3) The present invention ensures uniform spraying and sufficient mixing of mist water, mist weak acid and smoke metal hydride through the design and precise control of multiple spray ports. The quantity ratio, position distribution and coordinated opening strategy of the first, second and third spray ports ensure that the three substances react synchronously at the moment of spraying to form a stable hydrogen-containing mist mixture. The distribution design of the spray ports around the floating position of the seeds enables the seeds to be uniformly treated from multiple directions in a suspended state of high-pressure airflow, significantly improving the reaction coverage and treatment effect. At the same time, the layout and opening method of the spray ports can be flexibly adjusted according to the seed type and treatment requirements, which not only improves the uniformity of the germination process, but also ensures the flexibility and efficiency of large-scale applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a flow chart of the seed germination-acceleration method of the present invention;

[0061] Figure 2 It is a schematic diagram of the structure of the seed germination-accelerating germination device of the present invention.

[0062] Explanation of the accompanying drawings: 1-germination-germination container, 100-seed inlet, 111-first spray port, 112-second spray port, 113-first spray port, 12-high-pressure air flow inlet, 2-atomization unit, 3-control unit, 31-pH sensor, 32-temperature sensor, 4-high-pressure air source. DETAILED DESCRIPTION

[0063] In order to better understand the above technical solution, the above technical solution will be described in detail below in combination with the specification and specific implementation methods. 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 making creative work are within the scope of protection of the present invention.

[0064] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0065] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0066] The following is a further explanation of a seed germination-acceleration method and device using metal hydride provided by the present invention according to the accompanying drawings:

[0067] like Figure 1 As shown, the present invention provides a seed germination-acceleration method using metal hydride, which specifically comprises the following steps:

[0068] Pretreatment step: the seeds are subjected to at least one of the following pretreatments:

[0069] (1) The seeds have been pre-treated with disinfection;

[0070] (2) The seeds are pre-screened to select seeds with relatively uniform size and weight to facilitate the subsequent floating control of high-pressure airflow.

[0071] Step 2: Add the seeds into the germination-acceleration container through the seed inlet, and use high-pressure airflow to make the seeds float. The number of high-pressure airflow inlets is 1-30, and the high-pressure airflow meets at least one of the following conditions:

[0072] (1) The pressure of the high-pressure airflow is 0.1-10 atmospheres;

[0073] (2) the high-pressure airflow is released at least from below the seeds;

[0074] (3) It includes multiple high-pressure air flow inlets, and the floating position of the seeds is regulated by adjusting the air pressure and / or direction of each high-pressure air flow inlet.

[0075] Step 3: using an atomization unit to perform atomization treatment, including:

[0076] (3.1) The metal hydride powder is subjected to atomization treatment. The metal hydride includes MgH 2 KBH4 Mg(BH 4 ) 2 , Ca(BH 4 ) 2 , CaH 2 , KH at least one;

[0077] (3.2) atomizing a weak acid solution, wherein the weak acid solution has a concentration of 0.05-0.2 mol / L and comprises at least one of humic acid, acetic acid, citric acid, carbonic acid, metasilicic acid, and boric acid solution;

[0078] (3.3) Atomize the water.

[0079] Step 4: According to the mass ratio of metal hydride, weak acid solution and water of 1: (0.01-100): (100-10000), the smoke-state metal hydride, mist-state weak acid and mist-state water are sprayed onto the floating seeds in a controlled manner, the total amount of a single spray is 0.01-100g, and the mass ratio of the hydrogen-containing mist mixture obtained in a single reaction to the seeds is (0.1-15): (1-10000), to promote seed germination - accelerated germination, the spraying frequency is 1-20 times / day, and the duration is 1-50s / time.

[0080] When the metal hydride in the form of smoke is sprayed, at least one of the weak acid in the form of mist and the water in the form of mist is sprayed at the same time. In addition, during the germination and germination of the seeds, the seeds are kept in an environment with a temperature of 25-60°C and a pH value of 5.0-7.0 through real-time monitoring of the temperature sensor and the pH sensor and regulation of the temperature and material dosage by the control unit.

[0081] The present invention also provides a device for implementing the above-mentioned seed germination-germination method, see the attached Figure 2 , including:

[0082] (1) A transparent germination-acceleration container 1, comprising: a seed inlet 100, a plurality of high-pressure air inlets 12 and a plurality of spray ports arranged at the top of the container, which are specifically arranged as follows:

[0083] 1.1 The number of the high-pressure air inlets 12 is 1-30, preferably including multiple high-pressure air inlets 12 evenly distributed at the bottom of the container, and at least one high-pressure air inlet 12 is arranged on the side wall, and the high-pressure air inlets 12 are independently controlled by the central processing unit, and the airflow direction, size, etc. are independently controllable;

[0084] 1.2 The spray ports include: a first spray port 111 for controlled spraying of mist water, a second spray port 112 for controlled spraying of mist weak acid, and a third spray port 113 for controlled spraying of fumes of metal hydride. The first spray port 111, the second spray port 112 and the third spray port 113 meet at least one of the following conditions:

[0085] 1) The number ratio of the first spray port 111, the second spray port 112 and the third spray port 113 is (1-20): (1-10): (1-10);

[0086] 2) When the third injection port 113 is opened, at least one of the first injection port 111 and the second injection port 112 is opened at the same time;

[0087] 3) In the horizontal plane where the third spraying port 113 is provided, at least one first spraying port 111 is provided, and / or at least one second spraying port 112 is provided.

[0088] On the basis of the above arrangement, preferably, the first spray port 111 , the second spray port 112 and the third spray port 113 are respectively provided in plurality and distributed around the floating position of the seeds so as to apply nutrients more accurately and energy-savingly.

[0089] (2) an atomization unit 2, comprising: a water atomization device, a weak acid atomization device and a metal hydride atomization device, wherein the water atomization device, the weak acid atomization device and the metal hydride atomization device are respectively connected to at least one spray port;

[0090] (3) A control unit 3, comprising: a central processing unit and a pH sensor 31 and a temperature sensor 32 arranged in the germination-germination container 1, wherein the central processing unit is connected to the pH sensor 31, the temperature sensor 32, the atomization unit 2 and a high-pressure gas source 4 providing a high-pressure gas flow.

[0091] (4) A high-pressure gas source 4 is connected to each high-pressure gas inlet 12 and is connected to the central processing unit by signal. The high-pressure gas source 4 in the germination-acceleration device is controlled by the central processing unit and independently supplies high-pressure gas with the same / different pressures to each high-pressure gas inlet 12.

[0092] Example 1

[0093] The seed germination-acceleration device used in this embodiment includes the following structure:

[0094] (1) A cylindrical transparent germination-acceleration container, comprising: 18 high-pressure air inlets and 18 injection ports;

[0095] The high-pressure airflow inlets are symmetrically and evenly arranged at the same height of the side wall, and there are 2 groups of high-pressure airflow inlets at different heights (2 groups×4, a total of 8 side wall high-pressure airflow inlets), and the remaining high-pressure airflow inlets are distributed at the bottom of the germination-germination container, including 1 in the middle, 3 in the first ring, and 6 in the second ring;

[0096] The spray ports are divided into 6 groups, which are evenly arranged at the same level of the side wall, and each group includes a first spray port, a second spray port and a third spray port; the spray ports of each group are distributed around the floating position of the seeds;

[0097] During a single spraying, the three groups of spray ports are opened at intervals, and the next time they are switched to the other three groups. When the operation is started, the first spray port, the second spray port and the third spray port in each group of spray ports are opened at the same time;

[0098] (2) an atomization unit, comprising: a water atomization device, a weak acid atomization device, and a metal hydride atomization device, each of which is connected to a corresponding spray port;

[0099] (3) a heating unit, disposed inside the germination-acceleration container;

[0100] (4) a high-pressure gas source, which is connected to each high-pressure gas flow inlet and is connected to the central processing unit signal, and is controlled by the central processing unit to independently supply high-pressure gas flows with the same or different pressures to each high-pressure gas flow inlet;

[0101] (5) A control unit, comprising: a central processing unit and a pH sensor and a temperature sensor disposed in the germination-acceleration container, wherein the central processing unit is connected to the pH sensor, the temperature sensor, the atomization unit, the heating unit, and a high-pressure air source providing a high-pressure airflow.

[0102] The seed germination and germination acceleration device is used to perform rice seed germination and germination acceleration, which specifically includes the following steps:

[0103] Step 1: Pretreatment: pre-screen the rice seeds, and sterilize and pre-treat 1 kg of the rice seeds; set the temperature of the germination-germination container at 45°C;

[0104] Step 2: releasing a high-pressure airflow of about 1±0.2 atmospheres from below the seeds, so that the seeds are in a floating state, and the floating position of the seeds passes through the central plane of the internal space of the germination-germination container at a height of H / 2, and the vertical height h of the floating position is slightly greater than H / 3;

[0105] Step 3: The atomization unit separately 2 Powder aerosol treatment, atomization treatment of 0.1 mol / L humic acid solution and atomization treatment of water;

[0106] Step 4: Add MgH 2 , humic acid mist and water mist are quantitatively sprayed into the germination container at the same time, and the total amount of material sprayed in a single time is about 10g, MgH 2The mass ratio of humic acid solution and water is 1:10:2000, and the reaction obtains a hydrogen-containing mist mixture. The mass ratio of the hydrogen-containing mist mixture obtained by a single spraying to seeds is 1:100, which promotes seed germination-accelerated germination. The spraying frequency is 10 times / day, and the duration is 25s / time.

[0107] During the growth period, the temperature and pH value in the container are closely monitored and adjusted. When the pH value drops to the lower limit of 5.0, the amount of humic acid solution sprayed is reduced by about 40-60%. When the pH value rises to the upper limit of 7.0, the amount of humic acid solution sprayed is increased by about 40-60%. In addition, when the pH value is less than 5.0 or greater than 7.0, you can also temporarily start spraying MgH 2 Or humic acid solution to quickly adjust the pH value to the appropriate range.

[0108] Example 2-13

[0109] The germination-acceleration device of Examples 2-13 is the same as that of Example 1, except that the seed quality, the amount of nutrients used or the spraying conditions in the germination-acceleration method are different. The main parameters are shown in Table 1.

[0110] Control group

[0111] A control experiment was set up for Examples 1-13 by using a nursery seedling raising method. Referring to the material amount and spraying cycle in Examples 1-13, the seeds were dried before sowing, soaked with chemicals, and moisturized to accelerate germination. MgH 2 , humic acid solution and water were mixed and sprayed immediately, and the seed germination rate of each control group was observed and recorded.

[0112] Table 1 Main parameters of Examples 1-13

[0113]

[0114]

[0115] Table 2 Seed germination rate of Examples 1-13 and their control groups

[0116]

[0117] As can be seen from Table 2, the seed germination-acceleration method and device provided by the present invention using metal hydride in combination with a weak acid solution can make the seeds float, and can achieve high-quality and efficient germination-acceleration. The seed germination rates in Examples 1-13 are all above 88%, preferably above 90%. In comparison, the seed bed seedling raising method was adopted in each control group. Although the seeds, nutrients and application amounts used were similar to those in the corresponding embodiments, the seed germination rate was lower than 80%, which was significantly different from the embodiments of the present invention. The main reason is that the seeds in the embodiments can evenly absorb nutrients on their surface during the floating process, are less affected by the seed bed seedling raising environment, and can quickly regulate the temperature and pH value of the environment.

[0118] In summary, the present invention uses high-pressure suspension to enable various nutrients to cover the seed surface efficiently, stably, evenly and comprehensively, and accurately controls the concentration and speed of hydrogen release, shortens the germination-germination cycle, and effectively improves the germination rate, providing a new efficient, uniform and safe automated germination-germination technology for the field of seed germination and germination technology.

[0119] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the present invention is intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention.

Claims

1. A seed germination-acceleration method using metal hydride, characterized in that: The steps include: Step 1: Use high-pressure airflow to make the seeds float; Step 2, atomizing the metal hydride powder, the weak acid solution and water; Step 3: spraying the metal hydride in the form of smoke, the weak acid in the form of mist and the water in the form of mist onto the floating seeds respectively in a controlled manner, and obtaining a hydrogen-containing mist mixture through reaction, so as to promote the germination of the seeds.

2. The seed germination-acceleration method according to claim 1, characterized in that: The metal hydride comprises at least one of MgH2, KBH4, Mg(BH4)2, Ca(BH4)2, CaH2, and KH; The weak acid solution has a concentration of 0.05-2.0 mol / L and contains at least one of humic acid, acetic acid, citric acid, carbonic acid, metasilicic acid, and boric acid solutions.

3. The seed germination-acceleration method according to claim 2, characterized in that: The mass ratio of the metal hydride, the weak acid solution and water is 1:(0.01-100):(100-10000).

4. The seed germination-acceleration method according to any one of claims 1 to 3, characterized in that: The high pressure airflow satisfies at least one of the following conditions: (1) The pressure of the high-pressure airflow is 0.1-10 atmospheres; (2) the high-pressure airflow is released at least from below the seeds; (3) It includes multiple high-pressure air flow inlets, and the floating position of the seeds is regulated by adjusting the air pressure and / or direction of each high-pressure air flow inlet.

5. The seed germination-acceleration method according to claim 4, characterized in that: The first spray port controls the spraying of water in a mist state, the second spray port controls the spraying of weak acid in a mist state, and the third spray port controls the spraying of metal hydride in a smoke state, wherein the first spray port, the second spray port and the third spray port satisfy at least one of the following conditions: (1) The number ratio of the first spray port, the second spray port and the third spray port is (1-20): (1-10): (1-10); (2) When the third injection port is opened, at least one of the first injection port and the second injection port is opened at the same time; (3) In the horizontal plane where the third injection port is provided, at least one first injection port is provided, and / or at least one second injection port is provided.

6. The seed germination-acceleration method according to claim 5, characterized in that: The first spraying port, the second spraying port and the third spraying port each include a plurality of ports, and are distributed around the floating position of the seeds.

7. The seed germination-acceleration method according to claim 5 or 6, characterized in that: The seed satisfies at least one of the following conditions: (1) The seeds have been pre-treated with disinfection; (2) seeds are pre-screened; (3) The seeds are kept in an environment with a temperature of 25-60°C; (4) The seeds are kept in an environment with a pH value of 5.0-7.

0.

8. The method according to claim 7, characterized in that The total amount of metal hydride powder, misted weak acid and misted water sprayed at a single time is 0.01-100g, the mass ratio of the hydrogen-containing mist mixture obtained in a single reaction to the seed is (0.1-15): (1-10000), the spraying frequency is 1-20 times / day, and the duration is 1-50s / time.

9. A seed germination-acceleration device for implementing the method according to any one of claims 1 to 8, characterized in that: include: A germination-acceleration container, comprising a plurality of high-pressure air flow inlets and a plurality of spray ports; The atomization unit comprises a water atomization device, a weak acid atomization device and a metal hydride atomization device, wherein the water atomization device, the weak acid atomization device and the metal hydride atomization device are respectively connected to at least one spray port; The control unit includes a central processor and a pH sensor and a temperature sensor arranged in the germination-germination container. The central processor is connected with the pH sensor, the temperature sensor, the atomization unit and a high-pressure air source providing a high-pressure airflow.

10. The seed germination-acceleration device according to claim 9, characterized in that: The number of high-pressure air flow inlets is 1-30; The number of the spray ports is 3-40, wherein the number of the first spray ports connected to the water atomization device is 1-20, the number of the second spray ports connected to the weak acid atomization device is 1-10, and the number of the third spray ports connected to the metal hydride atomization device is 1-10; The central processing unit controls each high pressure air flow inlet and each injection port independently.

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