JP2023125564A - Method for raising paddy rice seedlings, method for cultivating paddy rice, device for generating seed soaking water, method for generating seed soaking water, and method for suppressing methane emissions from rice fields - Google Patents

Abstract

To provide both the cultivation of pesticide-free and herbicide-free paddy rice and the suppression of methane gas generation.SOLUTION: Seed rice is soaked in seed soaking water generated by including chelated iron in an activated water β, seed rice is germinated in a rice nursery 200 with the activated water supplied, and seedlings 2 are raised. In paddy rice cultivation, the seedlings are transplanted to a paddy field 100, and subsequently a chelate iron ε is added to pudding water without midseason drainage to raise a rice 3. As a result, methane emissions from rice fields are suppressed.SELECTED DRAWING: Figure 3

Description

The present invention relates to a method for raising paddy rice seedlings, a method for cultivating paddy rice, an apparatus for producing water for soaking seeds, a method for producing water for soaking seeds, and a method for suppressing methane release from paddy fields, which are suitable for cultivating paddy rice without pesticides or herbicides.

Recently, agricultural methods using iron tannins (so-called iron minerals) have been attracting attention. This method takes advantage of the fact that iron tannins have the property of being easily absorbed by plants, etc., and uses a colloidal solution of iron tannins as an iron supplying agent to grow crops (see Patent Document 1, etc.) ).

In addition, crops grown using this farming method are often grown organically and without pesticides or chemical fertilizers, taking into consideration the health of consumers.

JP 2018-45752 Publication

However, when cultivating paddy rice using the above-mentioned farming method, weeding work after mid-drying is very troublesome, and to avoid this, it is common to use herbicides. However, in order to prevent global warming, there is a request to extend the mid-drying period from the perspective of suppressing methane emitted from rice fields. The current situation is that it is indispensable. In short, in wet rice cultivation, mid-drying becomes a bottleneck, making it difficult to achieve both pesticide-free, herbicide-free cultivation and suppression of methane gas generation.

The present invention was created against the above-mentioned background, and its purpose is to raise paddy rice seedlings that enable both pesticide-free and herbicide-free paddy rice cultivation and suppression of methane gas generation. An object of the present invention is to provide a rice cultivation method using the same method, a method for producing water for soaking seeds, a water generating device for soaking seeds, and a method for suppressing methane release from rice fields.

In the method for raising rice seedlings according to the present invention, seed rice is soaked in seed soaking water generated by containing tannin iron and other chelated iron in activated water, and the seed rice is germinated and grown.

In the case of the above method for raising rice seedlings, the seed rice is grown in the seed soaking water, which is activated water containing chelated iron, so the growth of the rice seedlings is improved and the roots become thicker. Roots become stronger. As a result, it becomes possible to omit mid-drying in the process of cultivating wet rice. Therefore, there is no need to use herbicides, and weeding work is greatly simplified, making it possible to cultivate paddy rice without using pesticides or herbicides.

Another method for raising rice seedlings according to the present invention further uses salt water generated based on activated water in the salt water selection step.

In the case of the above-mentioned paddy rice seedling raising method, since the amount of the above-mentioned active water absorbed by the seed rice increases, the growth of the paddy rice seedlings becomes even better, and along with this, it is possible to ensure sufficient rooting of the paddy rice seedlings in paddy rice cultivation. It becomes possible.

In another method for raising paddy rice seedlings according to the present invention, the rice seedlings are further germinated and grown in a seedling field or a seedling grower in which the activated water is placed.

In the case of the above-mentioned paddy rice seedling raising method, since the amount of the above-mentioned active water absorbed by the paddy rice seedlings increases, the growth of the paddy rice seedlings becomes even better, and along with this, the paddy rice seedlings have sufficient rooting in paddy rice cultivation. becomes possible.

The paddy rice cultivation method according to the present invention involves transplanting the paddy rice seedlings grown by the above-mentioned method for raising paddy rice seedlings, and then transplanting the paddy rice seedlings without performing mid-drying and with iron tannins and other chelated iron added to the substitute water. was grown.

In the case of the rice cultivation method described above, since mid-drying is not performed, the use of herbicides can be avoided. Furthermore, due to the synergistic effect of the chelated iron contained in the seed soaking water and the chelated iron added to the irrigation water, the growth of paddy rice is improved without using pesticides or the like.

Moreover, since chelated iron is added to the irrigation water, the soil has a high iron oxide content. As a result, hydrogen sulfide that may be generated by reducing nitric acid and the like contained in the soil is rendered harmless as iron sulfide, and methane gas production in the final stage of reduction is also suppressed.

In short, it is possible to cultivate rice without pesticides or herbicides and to suppress methane gas generation.

The seed soaking water generating device according to the present invention is a device for generating seed soaking water for seed soaking the rice seed, and includes an activated water generating section that ionizes water to generate active water, and a chelate iron for introducing the chelate iron. and a seeding water generating section that generates seeding water by including chelated iron guided from the chelate iron container in the activated water guided from the activated water generating section.

In the case of the above-mentioned seed soaking water generation device, the structure of the device itself is simple, so that cost reduction can be achieved.

Another seed soaking water generating device according to the present invention is further configured such that the seed soaking water from the seed soaking water generating section and the activated water from the activated water generating section can be discharged.

In the case of the above-mentioned seed soaking water generation device, since it has a function of generating both seed soaking water and activated water, the activated water can be used sufficiently in the seed soaking step, and the usability is improved. Furthermore, equipment for generating activated water is not required, and in this respect it is possible to reduce equipment costs. This equipment is particularly useful for businesses that grow and sell seedlings.

The method for producing water for seed soaking according to the present invention is a method for producing water for seed soaking in which the rice seed is soaked, in which water is ionized to produce active water, and the activated water contains the chelated iron to produce water for seed soaking. did.

In the case of the above-mentioned method for producing water for seed soaking, the method itself is simple, and therefore costs can be reduced.

The method for suppressing methane release according to the present invention does not require mid-drying during the rice cultivation process, and adds iron tannins and other chelated iron to the water for irrigation.

In the case of the above method for suppressing methane release, since mid-drying is not performed, it is possible to avoid the use of herbicides. In addition, since chelated iron is added to the irrigation water, the soil has a high iron oxide content. As a result, hydrogen sulfide that may be generated by reducing nitric acid and the like contained in the soil is rendered harmless as iron sulfide, and methane gas production in the final stage of reduction is also suppressed. That is, it becomes possible to suppress methane gas released from rice fields.
In short, it is possible to cultivate rice without pesticides or herbicides and to suppress methane gas generation. In particular, the method itself is very simple and does not require large costs to implement, making it possible to effectively suppress methane gas generation in rice fields, which in turn has great significance in preventing global warming. There is expected.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the water generation apparatus for seed soaking based on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which mainly showed the flow of a seed soaking process for demonstrating the paddy rice seedling raising method based on embodiment of this invention. 1 is a diagram showing a paddy field for explaining a rice cultivation method according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which showed the flow of rice cultivation for demonstrating the rice cultivation method based on embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings. Organic rice cultivation is carried out here without the use of pesticides or herbicides, and for each seed paddy, two seedlings (paddy rice seedlings) are created by sequentially performing a salt water selection process, a seed soaking process, and a seedling raising process.

The seed soaking water generating device A according to this embodiment has the basic configuration shown in FIG. 1, and is used to perform the salt water selection process, the seed soaking process, and the seedling raising process, and generates activated water β water and seed soaking water γ. It has a function that allows it to be discharged separately.

Specifically, the device A includes a pump 40 that takes in water from a tap or the like and pumps water at a predetermined pressure into the water, and an activated water generator that negatively ionizes the water introduced from the pump 40 to generate activated water β. The chelate iron α introduced from the chelate iron container 10 is mixed into the activated water β introduced from the active water generation unit 20, and the chelate iron container 10 for storing the chelated iron α. A seed soaking water generating section 30 that generates seed soaking water γ, a seed soaking water outlet 60 for discharging the seed soaking water γ of the seed soaking water generating section 30 to the outside of the apparatus, and a seed soaking water outlet 60 for discharging the seed soaking water γ of the seed soaking water generating section 30 to the outside of the apparatus, and the activated water β of the activated water generating section 20 to the outside of the apparatus. It includes an activated water outlet 50 for discharging activated water, and a control section 70 that operates the above-mentioned sections in a predetermined sequence according to switch operations on an operation panel (not shown).

The pump 40 is an electric pump that is activated in accordance with a command signal from the control unit 70, and is designed to draw in water introduced through a water pipe and send it into the apparatus. In addition, when the pump function is not required, the pump 40 may be replaced with a control valve.

The activated water generation unit 20 is a water activation device that has a function of activating water by changing the quality, structure, etc. of the water sent from the pump 40. Here, we use a water activator manufactured by TAMURA Co., Ltd. with the trade name "Direca" (registered trademark).

Container 10 for chelate iron includes a container body for storing liquid chelate iron α, and an electric motor which is provided at the lower end of the container body and controls the discharge amount of chelate iron α according to a command signal from the control unit 70. The structure includes a valve.

Chelated iron α is iron (EDTA-Fe) that chelates the trace element "iron" necessary for plant growth to form a form that is easily absorbed without precipitating. Here, a colloidal solution of trivalent iron tannins is used, which is produced by placing tea leaves with water in a flat iron plate and leaving them to stand.

The seed soaking water generating section 30 is a two-liquid mixer that mixes activated water β and chelate iron α and discharges the mixed water as seed soaking water γ. Here, the mixing ratio of activated water β and chelated iron α is set to about 2:1.

The activated water outlet 50 is provided at the end of a pipe branching from the pipe connecting the output side of the activated water generation unit 20 and the inlet side of the seeding water generation unit 30, and is configured to receive commands from the control unit 70. It has a valve function that switches whether or not activated water β is discharged according to a signal.

The seeding water discharge port 60 is connected to the terminal of a pipe connected to the output side of the seeding water generating section 30, and has a valve function to switch whether or not to discharge the seeding water γ according to a command signal from the control section 70. are doing.

The control unit 70 is a control circuit such as a microcomputer that generates the command signal according to a sequence program recorded in advance in a built-in memory. The above-mentioned components are connected to the input/output section in addition to an operation panel (not shown). Specifically, when a switch operation for activated water generation is performed, the pump 40 and the activated water generation unit 20 are operated, the activated water outlet 50 is switched from a closed state to an open state, and this state is continued for a predetermined period of time. . On the other hand, when the switch operation for generating water for seeding is performed, the pump 40 and the activated water generation section 20 are operated, the chelate iron container 10 and the water outlet 60 for seeding are changed from the closed state to the open state, and this state is maintained at a predetermined state. Continue time.

The seed soaking water generation method according to the present embodiment is a method realized in the seed soaking water generation device A. Specifically, this is a method of generating seed soaking water γ for soaking rice seed 1, in which water is ionized to generate activated water β, and chelate iron α is included in the activated water β to generate seed soaking water γ.

The method for raising rice seedlings according to the present embodiment includes soaking the seed rice 1 in the seed soaking water γ generated by the seed soaking water generation device A, and causing the seed rice 1 to germinate and grow. The details will be explained with reference to FIGS. 2 and 3.

In the brine selection process, first, the awns are removed from the rice seeds 1 prepared in advance, and the seeds 1 are placed in a container with activated water β and stirred (see FIG. 2(a)). At this stage, remove the seed rice 1 that has risen to the top of the container. Thereafter, only the activated water β is taken out from the container, leaving the rice seeds 1 that have sunk to the bottom of the container, and salt (normal table salt is used here) and activated water β are put into the container (see FIG. 2(b)). Then, stir the container again to remove the floating seed rice 1. That is, the brine selection step is performed using brine based on activated water β. Here, the specific gravity of the salt water was set to 1.13. As a result, the solid, high-quality rice seed 1 sinks to the bottom of the container. After removing all the floating rice seeds 1, activated water β is poured into the container to wash away the salt and wash the rice seeds 1 that have sunk to the bottom of the container (see FIG. 2(c)). This completes the brine selection process.

In the seed soaking step, the rice seed 1 is transferred to another container and the seed soaking water γ is placed in the same container. However, when the water temperature rises, the rice seed 1 undergoes lactic acid fermentation, so in addition to supplying oxygen by bubbling, the water is replaced every day (see Figure 2(d)). The seed rice 1 that has undergone the seed soaking process is spread on mats or straw mats and dried with the wind.

The number of days for seed soaking varies depending on the water temperature, but since the seed soaking water γ contains chelated iron α, the activity of enzymes in the rice seeds 1 increases, increasing the energy required for germination. As a result, the number of days required for seed soaking is reduced by 5 to 7 days compared to conventional methods, and uneven germination is reduced. Moreover, rooting is promoted, resulting in thicker seedlings.

In the seedling-raising process, as shown in FIG. 3, activated water β is poured into the seedling field 200 in the greenhouse, the seed rice 1 that has been soaked is lined up, and the seed rice 1 is germinated and grown on the seedling field 200. Seedling generation 2 is grown in this way.

Note that a seedling raising device may be used instead of the seedling field 200. Even in this case, the process is the same as the conventional method except that activated water β is added to the seedling grower.

The paddy rice cultivation method according to the present embodiment involves transplanting seedlings 2 grown in a rice field 200 or the like to a paddy field 100, and then transplanting the seedlings 2 without performing mid-drying and with chelated iron ε added to the replacement water. I am growing it and making rice 3. The flow of rice cultivation and water management in this case are as shown in FIG. This rice cultivation process differs from conventional methods in the following points. Note that since the rest is the same as the conventional method, including the use of compost for organic cultivation, the explanation thereof will be omitted.

The first difference is that mid-drying is not performed during wet rice cultivation. Specifically, the rice is planted in shallow water, and after planting, the rice is cultivated in deep water until the ears appear.

The second difference is that chelated iron ε is added to the irrigation water during rice cultivation. Specifically, chelated iron ε is added to the paddy field 100 during the second puddling period. Here, tannin iron is used as the chelate iron ε. In this case, a colloidal solution of trivalent iron tannins is generated in water by placing powdered tea (10 kg in this case) and cast iron in a fine mesh bag and submerging it in a rice field. . The chelate iron ε produced in this way is the same as the chelate iron α.

Note that the chelated iron ε may be put into the paddy field 100 by attaching the same bag to a water supply port or an irrigation canal 110 located at the edge of the paddy field 100.

Note that the methane release suppression method according to this embodiment is a method included in the rice cultivation method described above. Specifically, the seedling seedling 2 is transplanted into the paddy field 100, and then chelated iron ε is added to the paddy field 100 without performing mid-drying.

According to the embodiment of the present invention described above, mid-drying is not performed during rice cultivation, making it possible to avoid the use of herbicides. When herbicides are not used, weeding work is required, but since water is not drained from the rice fields, weeds do not grow large, making the weeding work itself easier. In addition, the seedling water γ used in the seed soaking process, the activated water β used in the seedling raising process, and the chelated iron ε used in the paddy rice cultivation process ensure sufficient growth of seedlings 2 and rice 3. As a result, it becomes possible to cultivate paddy rice without using pesticides or herbicides, making it possible to produce high-quality rice. Moreover, since iron tannins are used as the chelated irons α and ε, it becomes possible to produce rice that is rich in iron and is excellent in health.

Furthermore, since chelated iron ε is added to the paddy field 100 during the rice cultivation process, the soil has a high iron oxide content, and hydrogen sulfide, which may be generated by reducing nitric acid contained in the soil, becomes harmless as iron sulfide. This also suppresses methane gas production in the final stage of reduction. That is, it becomes possible to suppress methane gas released from rice fields.

In short, it is possible to cultivate rice without pesticides or herbicides and to suppress methane gas generation. In particular, since the method itself is very simple, it does not require a large cost to implement, making it possible to effectively suppress methane gas generation in 100 rice fields during rice cultivation, and in turn, prevent global warming. It is expected that this will be of great significance.

Note that the invention according to the present application is not limited to the above embodiments, and may be modified as described below. For example, with regard to activated water, as long as it is water that has been ionized, there are no questions asked, including how it is produced. As for chelated iron, a material having properties equivalent to or similar to tannin iron may be used.

Regarding rice cultivation, it is best to change the method of rice cultivation as appropriate depending on the type of rice and local soil conditions. It is also possible to add chelated iron after rice planting.

As for the water generation device for seed soaking, a container for chelated iron having a function of storing raw materials and generating tannin iron within the container may be used. Alternatively, a type in which only water for seed soaking can be generated and discharged may be used.

As for the method of suppressing methane release, any other changes may be made as long as drying is not carried out during the rice cultivation process and chelated iron is added to the irrigation water.

A Water generation device for seeding 10 Container for chelated iron 20 Activated water generation unit 30 Water generation unit for seeding 40 Pump 50 Activated water outlet 60 Water outlet for seeding α Chelated iron
β activated water
γ Seeding water
ε Chelated iron 1 Seed rice 2 Seedling 3 Rice 100 Paddy 200 Seedling

Claims (8)

A method for raising rice seedlings, which comprises soaking seed rice in seed soaking water generated by containing tannin iron and other chelated iron in activated water, and germinating and growing the seed rice. 2. The method for raising paddy rice seedlings according to claim 1, wherein the salt water generated based on the activated water is used in the salt water selection step. 3. The method for raising paddy rice seedlings according to claim 1 or 2, characterized in that the seed rice is germinated and grown in a seedling field or a seedling grower in which the activated water is placed. The paddy rice seedlings raised by the method for raising paddy rice seedlings according to claims 1 to 3 were transplanted, and then the paddy rice seedlings were grown without performing drying and in a state where iron tannins and other chelated iron were added to the fresh water. A rice cultivation method characterized by: The apparatus for generating water for seed soaking includes an activated water generation section that ionizes water to generate active water, a chelate iron container for containing the chelated iron, and an activated water generation section that generates activated water led from the activated water generation section. A seed soaking water generation device comprising a seed soaking water generating section that generates seed soaking water by including chelate iron guided from the chelate iron container in water. 6. The seed soaking water generating device according to claim 5, wherein the seed soaking water generating device is configured such that the seed soaking water in the seed soaking water generating section and the activated water in the activated water generating section can be discharged. The method for producing water for seed soaking, the method comprising: ionizing water to produce activated water; containing the chelated iron in the activated water; thereby generating the water for seed soaking. A method for suppressing methane emission from paddy fields, which is characterized by not performing mid-drying in the process of paddy rice cultivation and by adding tannic iron or other chelated iron to the paddy water.