JP5185585B2 - Plant seedling and planting methods using soil disease control materials and soil disease control materials - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a soil disease control material and a plant planting method using a soil disease control material. In particular, the activity of root-knot disease and the development of root-knot disease are suppressed by suppressing the activity of the club-root fungus in the soil and keeping the roots healthy by adsorbing the waste products in the soil. The present invention relates to a method for raising seedlings and planting plants.

Clubroot is a disease caused by infection with soil-borne plant pathogens, and is a soil disease that seriously damages cruciferous plants, and is known as a disease that is extremely difficult to control. In plants that have developed clubroot, the roots become bumpy and cannot absorb enough nutrients, causing developmental problems.
As a means for suppressing the occurrence of such soil diseases, the use of chemically synthesized pesticides is common.
However, when spraying pesticides directly on plants, sufficient effects are often not obtained due to the effects of runoff due to rainfall and decomposition by sunlight, and when spraying on soil, decomposition by soil microorganisms. In addition, there is a concern about the environmental load due to the residue and accumulation of the sprayed agricultural chemicals in the soil or volatilization into the atmosphere. Therefore, production of agricultural products that reduce the use of chemicals including disinfectants is desired from the market.

  Therefore, in recent years, biological pesticides using natural enemies and antagonistic microorganisms have attracted attention as environmentally friendly pesticides instead of chemically synthesized pesticides, and are already in practical use. So far, there are filamentous fungi (Non-Patent Document 1) and Bacillus bacteria (Patent Document 1) as biological control methods for Brassicaceae plant clubroot. Further, Patent Document 2 discloses that a microorganism belonging to Pseudomonas vietnamiensis has a controlling effect on yellowing disease (Verticillium disease) of cruciferous plants such as Chinese cabbage.

Nikkatsu Disease Bulletin Vol. 62, 1996, p. 281 JP 11-335217 A JP 2003-231606 A

  However, when using biological agrochemicals that use the above natural enemies or antagonistic microorganisms, the introduction of new insects or microorganisms may change the natural ecosystem. Moreover, in order to utilize a living thing, the effective period as a product is short. After all, there is no known pesticide that has no problem in any aspect.

  In view of the above problems, the present invention has a high disease-suppressing effect on Brassicaceae clubroot diseases such as Chinese cabbage clubroot disease and cabbage root-knot disease that are cruciferous plant diseases. It is to provide a suppression method.

In order to achieve the above object, the soil disease control material of the present invention has a porous structure that carbonizes the tissue of onion pieces, has a large alkali buffering capacity, and adsorbs waste products in the soil to improve the soil. It is
The present inventor has found a firing temperature for constructing a porous structure for improving soil by adsorbing wastes and the like in the soil using onion pieces. In the case of the bulb portion of the onion piece, it is generated by performing carbonization treatment in a carbonization furnace at a temperature of 500 ° C. or more and 900 ° C. or less, and in the case of the epidermis portion of the onion piece, the temperature is 300 ° C. or more and 500 ° C. or less. The carbonization process may be performed in the carbonization furnace.
In addition, it is also preferable to mix both and use as a soil disease occurrence suppression material. That is, the bulb part which is an onion piece is carbonized in a carbonization furnace at a temperature of 500 ° C. or more and 900 ° C. or less, and the skin part which is an onion piece is carbonized in a carbonization furnace at a temperature of 300 ° C. or more and 500 ° C. or less. The bulb portion and the epidermis portion are separately carbonized and mixed.

  With the above configuration, a soil disease disease-controlling material having a porous structure with a large buffer capacity and a large number of micropores, including a large number of alkaline substances such as calcium, potassium, magnesium, etc., having a large buffering capacity to keep the soil alkaline continuously. be able to. If the soil disease occurrence suppressing material of the present invention is applied to soil, the soil environment in which the pH of the soil can be continuously maintained at about 8 to 10 in the applied portion, and activities such as root-knot disease causative bacteria are reduced. Can be obtained. Moreover, the porous structure obtained by the above carbonization treatment of onion pieces has a structure in which wastes and the like in soil can be efficiently adsorbed and removed in the micropores. When the onion piece is carbonized under the above conditions, the many micropores that are formed have a multi-layer structure in which micropores are further formed on the wall surface of the micropores, and further, micropores are provided on the wall surface. As a whole, the size of the micropores is uneven and varied, but its ability to adsorb wastes in the soil is also varied. If waste in the soil decreases, Chinese cabbage roots grow vigorously and resistance to pathogens increases.

Next, the present inventor has found out a technique for constructing a porous structure capable of more efficiently adsorbing / removing wastes in soil, etc., in the carbide of onion pieces. That is a technique in which an additive is added and pretreated before carbonizing the onion piece. Prior to carbonization of the onion pieces, an additive that penetrates into the tissue of the onion pieces in a solution state and evaporates at the carbonization temperature of the onion pieces in a solution state with respect to the onion pieces in a weight ratio of 5% to 20%. A method of adding and allowing the onion pieces to permeate into the tissue of the onion pieces and heating the onion pieces to which the additive has been added in a furnace to carbonize and produce the onion pieces while evaporating the additives. It is. In addition, it is preferable that the said additive is potassium carbonate.
With the above configuration, an additive such as potassium carbonate penetrates throughout the cell of the onion piece, evaporates during the carbonization process, and the trace becomes a fine pore, so that a porous structure can be efficiently obtained. .

Similarly, the present inventor has found another method for constructing a porous structure capable of more efficiently adsorbing / removing wastes and the like in soil from the onion carbide. The other method is a method of carbonizing the onion piece while blowing steam into the furnace.
When steam is blown and carbonized in a steam atmosphere, the steam molecules penetrate into the cells of the onion pieces. If the carbonization process is carried out while removing water vapor, the water vapor evaporates and the subsequent pores become fine pores, so that a porous structure can be obtained efficiently.

The plant planting method using the soil disease control material of the present invention uses the soil disease control material of the present invention generated by the method described above. The plant is planted after 5 to 20 g of the soil disease control material of the present invention is mixed with the soil in the planting hole at the plant planting position. The mixing range of the soil disease control material is 5 cm to 20 cm in diameter and the surface layer is in the range of 5 cm to 10 cm, for example, 10 g in diameter and the surface layer is in the range of 5 cm.
According to the planting method of the above plant, if the soil disease occurrence control material of the present invention is mixed with the soil in the above range, even if the soil is contaminated with root-knot disease causing bacteria, alkaline buffering is performed at the planting position. In addition, it is possible to efficiently adsorb and remove wastes and the like in the soil, and to suppress the development of clubroot disease.

Next, the plant raising method using the soil disease control material of the present invention also uses the soil disease control material of the present invention generated by the method described above. After planting the plant by mixing 3 to 20%, preferably 5 to 10%, of the soil disease disease-causing agent of the present invention with the soil of the plant seedling culture soil, the plant is planted in a planting hole at a field planting position. If the soil disease control material of the present invention is mixed with the seedling soil, the alkaline buffering capacity is exhibited in the seedling soil even if it is soil contaminated with clubroot causing bacteria, and the soil disease control is suppressed. The occurrence of clubroot can be suppressed by the ability to adsorb waste in the soil of the porous structure of the material. Furthermore, it is known that the roots at the seedling stage of plants release causative substances that cause self-poisoning such as dimethyl disulfide, allyl isothiocyanate, and trans-2 hexenal. It is possible to adsorb and remove the causative agent of the self-poisoning due to the ability, and contribute to the promotion of seedling growth.
Examples of plants include cruciferous plants such as Chinese cabbage, cabbage, and turnips, and plants such as lettuce and onion. In particular, since cruciferous plants are susceptible to the development of clubroot when infected with the clubroot pathogen, the application of the soil disease onset suppression material of the present invention is effective.

According to the soil disease control material of the present invention, a porous structure including a large number of alkalis such as calcium, potassium, magnesium, etc., having a large buffering ability to keep the soil alkaline, and having many fine pores. If it is used and applied to plant-planting soil or seedling soil, the pH of the soil can be continuously maintained at about 8 to 10 in the applied part, and a soil environment in which root-cause-causing bacteria are disliked can be obtained. It is possible to efficiently adsorb and remove wastes and the like in the soil in the pores of the porous structure.
Further, according to the planting method of the plant using the soil disease control material of the present invention, even if the soil is contaminated with root-knot disease-causing fungi, the alkaline buffering capacity is exhibited at the planting position, and the soil It is possible to efficiently adsorb and remove waste products in the inside, and to suppress the development of clubroot disease.
In addition, according to the plant seedling method using the soil disease control material of the present invention, even in soil contaminated with root-knot disease-causing fungi, the alkali buffering capacity is exhibited in the seedling soil, and the soil It is possible to efficiently adsorb and remove waste products in the inside, and to suppress the development of clubroot disease. Furthermore, causative substances that cause self-poisoning can be efficiently adsorbed and removed.

  Hereinafter, the best mode for carrying out the present invention will be described specifically by way of examples. The present invention is not limited to these examples.

An example of the soil disease onset suppression material of this invention is shown.
FIG. 1 is a diagram schematically showing a procedure for generating a soil disease control material of the present invention. The following procedure is a unique technique that has been achieved as a result of many years of research by the inventors.
The material is onion pieces, some using the epidermis part 1 and some using the bulb part 2. Only one of the carbonization steps is performed. The carbonization furnace 3 can control the furnace temperature to around 1000 ° C.

The carbonization conditions for carbonizing the epidermis part and the carbonization conditions for carbonizing the bulb part were different.
The carbonization conditions for carbonizing the skin portion are: the furnace temperature is 300 ° C. to 500 ° C., and the carbonization time is 1 hour to 3 hours. For example, the furnace temperature is 480 ° C. and the carbonization time is 2 hours.
The carbonization conditions for carbonizing the bulb portion are a furnace temperature of 500 to 900 ° C., and a carbonization time of 3 to 5 hours. For example, the furnace temperature is 730 ° C. and the carbonization time is 3.5 hours.

In this way, the carbonization conditions for the epidermis part and bulb part of the onion piece were made different from each other, focusing on the difference in cell structure, thickness, moisture content, etc. between the epidermis part and the bulb part. This is a result of devising the structure so that many structures are formed.
The epidermis part is originally dried, and the cell size and interval are denser than the bulb part. When the carbonization time is relatively short at a relatively low temperature, a large number of micropores that ensure the ability to adsorb root-knot disease-causing bacteria described later remain. The bulb portion remains rich in water, and the cell size and interval are sparse compared to the epidermis portion. When the carbonization treatment time is relatively high and the carbonization time is long, a large number of micropores can be formed to ensure the ability to adsorb soil wastes and self-addictive substances described later.

  In addition, it is good also as a soil disease onset suppression material using the carbide | carbonized_material produced | generated only from the skin part of the onion piece, and good also as a soil disease onset suppression material using the carbide | carbonized_material produced | generated only from the bulb part. Moreover, after carbonizing the skin part and bulb part of an onion piece separately according to each carbonization process conditions, it is good also as a soil disease pathogenesis control material by mixing both.

Next, a device for forming a porous structure with more fine pores through carbonization of onion pieces will be described. The first contrivance is to infiltrate the additive as a pretreatment before carbonization of the onion pieces, and to evaporate the additive during the carbonization treatment and to form a porous structure with more fine pores. is there.
An additive that easily penetrates into cells of onion pieces and evaporates under carbonization conditions is used. For example, potassium carbonate is used. Potassium carbonate is a material that easily penetrates into the cells of the onion pieces, and both the carbonic acid and potassium of the composition easily evaporate. Even if a small amount of potassium carbonate remains, potassium is also a fertilizer. As shown in FIG. 2, 5-20% of potassium carbonate is added to both the epidermis portion and bulb portion of the onion piece and allowed to penetrate into the cells.
Subsequent carbonization treatment conditions in the carbonization furnace may be the same as those described above. Potassium carbonate evaporates before carbonization of the onion pieces begins.
When potassium carbonate evaporates, the portion in which potassium carbonate has permeated becomes fine pores because potassium carbonate escapes. That is, when the additive permeates every corner of the cell, many porous structures of the micropores of the onion piece are likely to be formed.

  Next, a second device for forming a porous structure with more fine pores through carbonization of onion pieces will be described. The second idea is to introduce a water vapor during carbonization treatment of onion pieces and add a treatment to remove the water, so that the water vapor is permeated into the cell during the carbonization treatment, and then extracted. It is a device to form.

As shown in FIG. 3, a steam introduction path and a steam exhaust path are provided in the carbonization furnace, and steam is introduced into the carbonization furnace during the carbonization treatment for both the skin portion and bulb portion of the onion piece, Is allowed to penetrate into the cells, and then water vapor is extracted. The carbonization conditions may be the same as those described above. Before the onion carbonization begins, the water vapor does not escape. In addition, it is also possible to use one entrance / exit path by sharing the steam introduction path and steam exhaust path of the carbonization furnace.
When water vapor escapes, the portion where water vapor has permeated becomes micropores. That is, when water vapor penetrates to every corner of the cell, many porous structures of micropores of the onion piece are likely to be formed.

  Next, the application method of the soil disease occurrence control material of the present invention produced by the carbonization process will be described, and the effectiveness of the soil disease occurrence suppression material of the present invention will be verified together with the application results.

FIG. 4 is a diagram schematically illustrating a plant cultivation technique using a soil disease occurrence suppression material. Here, the plant of Brassicaceae is taken as an example of the plant.
The cultivation of Brassicaceae plants is generally carried out separately from the seedling raising stage and the planting stage. Here, the seedling raising stage and the planting stage are shown, but the application of the soil disease occurrence control material of the present invention may be applied to both the seedling raising stage and the planting stage, or only the planting stage.

  Hereinafter, the results of confirming the efficacy by actually conducting an application experiment of the soil disease control material of the present invention in the field of the Awaji Agricultural Technology Center of the Hyogo Prefectural Agriculture, Forestry and Fisheries Technology Center will be shown.

[Application experiment 1]
At the planting position of Chinese cabbage in the field where the clubroot was contaminated, the soil disease control material of the present invention was mixed in a planting hole having a diameter of 10 cm and a surface layer of 5 cm, 5 to 20 g per strain, and then planted.

[Application conditions]
The prototype was a Chinese cabbage, and the breed was “Homare”.
The application amount of the material planting hole was prepared in 4 patterns of 0 g, 5 g, 10 g, and 20 g per strain at a diameter of 10 cm and a surface layer of 5 cm.
As a control drug treatment, 2 L of diazofamide flowable 500-fold solution was irrigated on the tray before planting.
The sowing date was September 22, and the culture soil was N15. A seedling cell tray 128 holes was used.
The fixed planting date was October 6th, the ridge width was 135 cm, two rows were planted, and the stock was 45 cm.
As for the amount of fertilization, nitrogen (N), phosphoric acid (P2O5), and potassium (K2O) were applied at 36.4 kg, 18.4 kg, and 27.2 kg per 10a, respectively.
The harvest date was January 24th.
The test scale was 30 strains per section with 3 replicates.

[Application result]
The soil pH, which was about 6.7 before application, was improved to a high alkalinity of 7.9. Moreover, it turned out that ash content, such as potassium, calcium, and magnesium, is high. The soil bulk weight was as light as 115 g / L. Fertilizer effect and soil acidity correction effect were recognized.
The application results of Application Experiment 1 are summarized in Table 1.

  In the disease survey conducted at the time of harvest, the disease-causing strain rate was the highest in the non-application group with 88.9%, but the carbide application 5, 10 g group and the control drug group showed a high value of 85% or more. The 20g section was the lowest at 70.1%. The dead strain rate was as high as 22.3% in the non-application group and 33.3% in the carbide application 5g group, 3.3% in the 10g group, and 0% in the 20g group and the control drug group.

  As for the severity of disease classified into 5 levels according to the state of root nodule growth (see footnote in Table 1), the non-application area had the most severe root nodule growth of 51.1, and the carbide application rate was 5, 10 As the dose increased to 20 g, the severity of the disease became lighter. In the 20 g group, the effect of suppressing the occurrence of clubroot disease was observed, which was equivalent to 13.1 and 14.1 of the control drug.

  Looking at the bulb weight of Chinese cabbage at the time of harvest, the non-application area was the lightest at 2.16 kg / strain due to severe root-knot disease. As the application rate of carbide increased to 5 and 10 g, the ball weight increased, and the 10 g group was the heaviest at 3.11 kg / strain equivalent to the diazofamide group of the control drug. In 20g ward, it was slightly smaller. The yield per area was as low as 5.5 t / 10a in the non-application group 5.5 t / 10a, and 5 g in the carbide application group, but 9.9 t / 10a in the 10 g group and 9.6 t / 10a in the 20 g group, the control drug group. Yield comparable to that of 10.3 t / 10a was obtained.

  From the above, by applying 5-20 g per plant of the soil disease disease-controlling material of the present invention to the planting hole at the time of planting, the root nodules are prevented from growing on the main root, and the enlargement of the bulbs is improved. It has been found to be an effective control alternative to use.

[Application experiment 2]
For each vegetable of lettuce, Chinese cabbage, and onion, the efficacy was confirmed by applying the soil disease occurrence control material of the present invention at the seedling raising stage and the planting stage.

[Application conditions]
(1) Application to each farm for each vegetable Lettuce, Chinese cabbage, and onion were used as prototypes. Each was applied under the following conditions.
Lettuce used “Santos No. 2” as a variety. Four patterns of onion residue carbide application rate (kg / 10a) of 0, 50, 100, 500 were prepared. The sowing date was September 16, the fixed planting date was October 6, and the harvest date was December 9. As for the amount of fertilization, nitrogen (N), phosphoric acid (P2O5), and potash (K2O) were fertilized by 22 kg, 16 kg, and 16 kg, respectively, per 10a.

  Chinese cabbage used “Korokoro 85” as a variety. Four patterns of onion residue carbide application rate (kg / 10a) of 0, 50, 100, 500 were prepared. The sowing date was September 16, the fixed planting date was October 6, and the harvest date was January 9. As for the amount of fertilization, nitrogen (N), phosphoric acid (P2O5), and potash (K2O) were fertilized by 25 kg, 12 kg, and 19 kg, respectively, per 10a.

The onion used “Shiho Seisei No.7” as a variety. Four patterns of onion residue carbide application rate (kg / 10a) of 0, 50, 100, and 400 were prepared. The sowing date was September 19, the fixed planting date was November 5, and the harvest date was May 18. As for the amount of fertilization, nitrogen (N), phosphoric acid (P2O5), and potash (K2O) were applied with 20 kg, 20 kg, and 20 kg, respectively, per 10a.
In addition, the mixing ratio to the seedling culture soil was such that the mixing ratio (%) of the lettuce, Chinese cabbage, and onion was 0, 5, and 10 in volume ratio.

[Application result]
(1) Looking at the soil pH and electrical conductivity (EC) immediately after application to the main field, the pH was 6.65 without application to 7.85 with 500 kg / 10a application, and EC from 0.15. It increased to 0.32 mS / m (Table 2). Chinese cabbage increased in total weight and ball weight at an application rate of 50 to 500 kg / 10a compared to the non-application area (Table 3). In the onion, as the application rate was increased to 400 kg / 10a, the yield of 2L spheres increased and the total yield increased (Table 4).

  (2) Looking at the effects of admixture on culture soil on the growth of seedlings, lettuce and Chinese cabbage plant height and above-ground weight increase at 5-10%, while onion increases leaf sheath diameter, number of green leaves and above-ground weight. (Tables 5 and 6). Regarding the pH and EC at the time of planting, the pH increased by about 0.4 at 10% compared to the mixing ratio of 0%. The EC increased as the mixing ratio increased with lettuce. There was no difference in onions with a long nursery period. In terms of the effect on yield, lettuce was considered to have increased the total weight and ball weight at a mixing ratio of 5 to 10%, and the improvement in seedling quality affected the growth and yield after planting. In the onion, the harvest ratio of L spheres increased at a mixing ratio of 5 to 10%, and the total yield increased (Tables 7 and 8).

  From the above, with regard to the application effect of onion carbide, in Chinese cabbage, the effect of promoting the enlargement of spheres was observed at an application rate of 50 to 500 kg / 10a (in the case of onion, 50 to 400 kg / 10a). Growth of lettuce, Chinese cabbage and onion seedlings was promoted at a mixing ratio of 5 to 10% in the seedling culture soil, and an increase in yield was also observed in lettuce and onion.

[Application experiment 3]
About cabbage, the effect was confirmed by applying the soil disease occurrence suppression material of the present invention in the seedling raising stage and the planting stage.

[Application conditions]
The prototype was cabbage, and the varieties used were “Meso Kanran SE”.
The application amount of the material planting hole was prepared in 4 patterns of 0 g, 5 g, 10 g, and 20 g per strain at a diameter of 10 cm and a surface layer of 5 cm.
As a control drug treatment, 20 kg / 10a sulfurfamide powder was used before planting.
The seeding date was December 12, and the culture soil was N15. A seedling cell tray 128 holes was used.
The fixed planting date was April 3, and two rows were planted with a ridge width of 135 cm, and the spacing was 35 cm.
As for the amount of fertilization, nitrogen (N), phosphoric acid (P2O5), and potash (K2O) were applied at 31.2 kg, 16 kg, and 23.2 kg per 10a, respectively.
The harvest date was June 20.
The test scale was 30 strains per section with 3 replicates.

[Application result]
The application results are summarized in Table 9.

(1) In the disease survey conducted at the time of harvest, the disease-causing strain rate was the highest at 59.8% in the non-application area, and became lower as the carbide application rate increased to 5 g, 10 g, and 20 g. The control drug sulfurfamide powder 20 kg / 10a section was 7.9%.
As for the disease severity (footnotes in Table 9) classified into 5 stages according to the state of root nodule growth, the no application zone had the most severe root nodule growth of 25.5, and the carbide application rate was 5, 10, As the dose increased to 20 g, the severity of the disease became lighter. In the 20 g group, the effect of suppressing the occurrence of clubroot was confirmed to be about the same as 4.5 in the control drug group and 3.0.
When we looked at the weight of cabbage at the time of harvest, it did not reach a significant difference between treatment areas.

  From the above, it was recognized that by applying 5 to 20 g of charcoal to the planting hole per plant during cabbage planting, the root nodules were prevented from growing on the main root, providing an effective defense means to replace the use of pesticides. .

  As described above, the preferred embodiment of the planting method of the plant using the soil disease control material and the soil disease control material of the present invention has been illustrated and described, but various modifications can be made without departing from the technical scope of the present invention. It will be understood that is possible.

The soil disease onset suppression material of the present invention suppresses the activity of clubroot bacteria in the soil, adsorbs waste products in the soil and keeps the roots healthy so that the pathogenesis of the root-knot disease is suppressed. Applied as a restraining material.
The plant-planting method using the soil disease occurrence-suppressing material of the present invention is applied as a method for suppressing root-knot disease in raising seedlings and planting plants such as cruciferous plants.

The figure which showed typically the production | generation procedure of the soil disease onset suppression material of this invention. The figure which showed typically the production | generation procedure of the soil disease onset prevention material of this invention when using an additive The figure which showed typically the production | generation procedure of the soil disease onset prevention material of this invention when utilizing water vapor | steam atmosphere. The figure which shows typically the cultivation technique of the plant using the soil disease outbreak control material

Explanation of symbols

1 Epidermis part 2 Bulb part 3 Carbonization furnace

Claims (8)

  A soil disease control material produced by performing carbonization treatment on a bulb portion which is an onion piece at a temperature of 500 ° C. or higher and 900 ° C. or lower in a carbonization furnace.   A soil disease control material produced by performing a carbonization treatment on a skin portion, which is an onion piece, at a temperature of 300 ° C. or more and 500 ° C. or less in a carbonization furnace.   Carbide treatment is performed on the bulb part, which is an onion piece, in a carbonization furnace at a temperature of 500 ° C. or more and 900 ° C. or less, and the skin part, which is an onion piece, is carbonized in a carbonization furnace at a temperature of 300 ° C. or more and 500 ° C. or less. And the soil disease onset suppression material produced | generated by carrying out the carbonization process of the said bulb part and the said epidermis part separately, and mixing them. Prior to carbonization of the onion pieces, an additive that penetrates into the tissue of the onion pieces in a solution state and evaporates at the carbonization temperature of the onion pieces in a solution state with respect to the onion pieces in a weight ratio of 5% to 20%. Add and let it penetrate into the tissue of the onion pieces,
The soil disease disease-controlling material according to any one of claims 1 to 3, wherein the onion piece added with the additive is heated in a furnace to carbonize the onion piece while evaporating the additive. .   5. The soil disease onset suppressing material according to claim 4, wherein the additive is potassium carbonate.   The soil disease onset suppressing material according to any one of claims 1 to 3, wherein the material is produced by carbonizing the onion piece while blowing water vapor into the furnace.   A plant using a soil disease control material characterized by planting a plant after mixing 5 to 20 g of the soil disease control material according to any one of claims 1 to 6 in the soil of a planting hole at a planting site Planting method. After planting the plant by mixing 3 to 20 % by volume of the soil disease control material according to any one of claims 1 to 6 in the soil of plant seedling culture soil, the plant is planted in a planting hole at a field planting position. A plant seedling method using a soil disease control material characterized by

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