WO2002082905A1 - Plant growth promoters, coating compositions for seeds, seeds coated with coating composition for seeds and method of pretreating seeds - Google Patents

Abstract

Since cellulose (in particular, crystalline cellulose), which has been commonly employed as fillers in preparations, has an effect of promoting plant growth, compositions containing cellulose together with at least one component selected from among silica gel, diatomaceous earth, alum, calcium carbonate, calcium peroxide and glucose are useful as plant growth promoters. Unhulled rice, beet sugar, turf, mask melon and so on coated with coating compositions for seeds containing the above plant growth promoter compositions show not only an elevated germination ratio but also favorable growth. In cereals such as rice and root vegetables such as beet, an increase in the yield can be expected. By coating disinfected rice seeds with the coating compositions for seeds containing the above plant growth promoter composition, seed presoaking and sprouting can be omitted in the step of pretreatments (selection by specific gravity, disinfection, presoaking and sprouting). Thus, labor can be saved in growing rice seedlings. Furthermore, no waste liquor containing disinfecting agents released from the disinfected seeds is formed in the presoaking, thus achieving an ecological advantage.

Description

 Specification

 Plant growth promoter, seed coating composition, seed coated with seed coating composition, and seed preparation method

 Technical field ' '

 The present invention relates to a plant growth promoting composition containing cellulose as a main component, a seed coating composition containing the plant growth promoting composition containing cellulose as a main component, a seed coated with the seed coating composition, and cellulose. The present invention relates to a method for preparing rice using paddy coated with a composition for seed coating containing a plant growth promoting composition as a component.

 Background art

 Specific oligosaccharides obtained by decomposing the polysaccharides constituting the plant have a plant growth promoting effect (JP-A-63-215606 and JP-A-9-216806); adding vinegar to the oligosaccharides Is known to enhance the effect of promoting plant growth (Japanese Patent Application Laid-Open No. 10-87417).

 As for polysaccharides, for example, cellulose derivatives having ion exchange ability such as CM-cellulose and DEAE-cellulose can be used as a treatment agent for promoting plant growth (Japanese Patent Publication No. 54-35064); It is known that a composition obtained by mixing a specific ratio of chitosan, which is a polysaccharide in which a certain glucose is replaced with dalcosamine, and a non-toxic acid exhibits a plant growth regulating action (Japanese Patent Application Laid-Open No. 62-277304).

 —Seed coating film composition consisting of a cellulose film-forming agent, α—a specific ratio of a cellulose derivative and a plasticizer (Japanese Patent Publication No. 3-4577); having a fiber structure with an aspect ratio of 20 or more A seed coating material containing a specific ratio of cellulose powder as a substance and calcium stearate as a water repellent is known (JP-A-8-56425).

On the other hand, in the seedling raising work of rice, back-counting from the transplanting time, preparing seedling bed soil, preparing seeds, sowing and raising seedlings are carried out systematically. Among them, seed preparation is the work of specific gravity selection, disinfection, immersion, germination-germination of seed rice. Then, after the seeds have been cut off, seedling raising work is advanced to sowing. In the specific gravity selection, seeds that cause illness or irregularity are immersed in salt water, and the seeds selected in the specific gravity selection are washed and then disinfected. Seed disinfection is performed by immersing in a seed disinfectant for a certain period of time to prevent blight and blast. Seed disinfected seeds are soaked with water, then sprouted (germinated) and then sown. Seed disinfected seeds are immersed in running water or stagnant water, usually for a period of water temperature X days or more. This work requires labor and it is difficult to determine the period according to the time of transplantation. In addition, it is not preferable from the environmental point of view to discard the seed water containing the seed disinfectant eluted from the seed disinfected seed rice as it is.

 Disclosure of the invention

 The present inventor has found that germination is promoted by coating a composition containing cellulose as a main component on seed rice. After specific seed selection and seed disinfection, the seed rice was coated with a composition containing cellulose as a main component, thereby establishing a method for preparing seeds of rice without soaking and sprouting. Furthermore, by coating a composition containing cellulose as a main component, in addition to rice, the germination rate of sugar beet and turf is improved, the growth is promoted, the yield is increased, and the cellulose itself is particularly improved. The present inventors have found that crystalline cellulose has a plant growth promoting effect and can be used as a growth agent for various plants, and thus completed the present invention. That is, the present application includes the following inventions [1] to [4].

 [1] A plant growth promoting composition characterized by containing cellulose as the component (A) and at least one component selected from the group consisting of silica gel, diatomaceous earth, miyovan, calcium carbonate, calcium peroxide and glucose as the component (B). .

 [2] Cellulose as component (A), one or more components selected from silica gel, diatomaceous earth, myovan, calcium carbonate, calcium peroxide and glucose as component (B), and a binder as component (C). A composition for seed coating, characterized by:

 [3] Cellulose as the component (A), one or more components selected from silica gel, diatomaceous earth, miyovan, calcium carbonate, calcium peroxide and pudose as the component (B), and a binder as the component (C) A coated seed coated with a composition characterized by the above-mentioned.

 [4] After specific gravity sorting, the disinfected paddy is used as a component (A) for cellulose, and as a component (B), silica gel, diatomaceous earth, alum, calcium carbonate, calcium peroxide and glucose, and at least one compound selected from the group consisting of: C) A method for preparing rice seeds, characterized by coating with a seed coating composition containing a binder.

 BEST MODE FOR CARRYING OUT THE INVENTION

The cellulose used in the inventions of the above [1] to [4] is obtained from plants, microorganisms, etc. Although it is not particularly limited as long as it can be obtained, α-cellulose obtained as pulp from fibrous plants is partially depolymerized with a mineral acid, and the purified crystalline cell mouth and ο; -cellulose are mechanically converted. Powdered cellulose decomposed into cellulose is preferable, and crystalline cellulose is particularly preferable. There are various grades of crystalline cellulose depending on the difference in particle diameter and apparent specific gravity, and any of them can be used.

 Examples of the components [1] to [4] of the invention [1] include at least one component selected from silica gel such as hydrous silicon dioxide, diatomaceous earth, alum, (precipitated) calcium carbonate, calcium peroxide, and glucose. Can be

 The amount of component Β is 0.1 to 10% by weight of silica gel; 1 to 50% by weight of diatomaceous earth; 0.1 to 5% by weight of alum; (sedimentation) 0.1 to 10% by weight of calcium carbonate; 100-1500% by weight for calcium; 0.5-20% by weight for glucose.

 Preferred as the composition for seed coating in the above inventions [2] to [4] is a composition comprising crystalline cellulose, hydrous silicon dioxide, diatomaceous earth, and, if necessary, calcium carbonate and / or calcium peroxide. Yes, their blending ratio (% by weight) is 50 to 95% by weight of crystalline cellulose, preferably 60 to 95% by weight, more preferably 75 to 90% by weight; and 0.1 to 10% by weight of hydrated silicon dioxide. , Preferably 1 to 10% by weight, more preferably 3 to 7% by weight; diatomaceous earth 1 to 50% by weight, preferably 3 to 25% by weight, and still more preferably 5 to 20% by weight; Calcium is 0.1 to 10% by weight, preferably 2 to 10% by weight, and more preferably 3 to 7% by weight.

 Further, calcium peroxide is used in an amount of 100 to 1500% by weight, preferably 200 to 125% by weight, based on the composition of crystalline cellulose, hydrated silicon dioxide, diatomaceous earth, and, if necessary, calcium carbonate. Preferably, it is 250 to 1000% by weight.

Examples of the binder in the above-mentioned inventions [2] to [4] include starch such as corn starch, potato starch and rice starch; and cellulose derivatives such as hydroxypropylcellulose. You may. The amount of binder used is from 0.5 to 5% by weight, based on the composition. Preferred examples of the binder include starches such as corn starch, potato starch, and rice starch, and corn starch is more preferred. The seed preparation method for rice in the above [4] is as follows: (1) Specific gravity selection of paddy, (2) Disinfection of selected paddy, and (3) Cellulose as component (A), cellulose, component (B) ) Is a method of coating with a binder and a plant growth promoting composition containing at least one component selected from silica gel, diatomaceous earth, alum, calcium carbonate, calcium peroxide and glucose. The method of the present invention differs from the conventional method in that soaking and sprouting for uniform germination are not performed.

 The specific gravity of the paddy may be selected by a method using salt water, which is usually performed.Specifically, for example, seed rice is put into saline or ammonium sulfate having a specific gravity of about 1.05 to 1.2, and the sinking is selected. However, it may be rinsed with water.

 Seed disinfection can be carried out by a commonly used method to prevent blight, blast, etc., for example, thiuram benomyl, thiuram thiophane-methyl, thiuram befrazoate wettable powder A solution containing a certain concentration of a seed disinfectant, such as a prochloraz emulsion, benomyl agent, thiabendazole / capitan agent, may be heated to 10 ° C or higher and immersed for a certain period of time. It is preferable that the seed-sterilized paddy be air-dried for about half a day and used for the next operation.

 As a method of coating the seed rice and various seeds described below with the seed coating composition of the present invention, a method of mixing the seed rice or various seeds with the plant growth promoting composition, adding an aqueous binder solution, further mixing and drying (mixing) Method); using a centrifugal fluidized granulation device (CF granulator) to produce seeds or coated seeds with various seeds, plant growth compositions and binders (centrifugal fluidized coating method); using sugar-coated bread, A method of producing coated seeds with seeds or various seeds, a plant growth composition and a binder (pan coating method): After soaking the seeds or various seeds in water or an aqueous solution containing a binder, the plant growth composition is applied. And drying methods (immersion methods). Seed paddies or various seeds coated with the composition for seed coating may be dried, if necessary, and then germinated in a seedling incubator or subjected to direct sowing.

 The seed to be coated with the composition for seed coating is not particularly limited. , Soybeans, red beans, etc .; grasses, such as Koryo-shiba, western turf; melons, such as cantaloupe, andes melon, prince melon.

Preferable ones include rice (paddy), sugar beet, koreshiba, western turf, and muskmelon. It is. In particular, seed rice coated with the composition for seed coating of the above [2] is useful for simplifying rice preparatory measures.

 When the plant growth promoting composition of the above [1] is used, the following methods (a) and (b) are used. The time of use is not particularly limited as long as it is during the growth period of the plant, but it is preferably at the time of sowing seeds or at the time of planting.

 (a) Spray or mix on soil where plants are grown or sown.

 (b) Planting or sowing the plant directly on the plant growth promoting composition.

 Specifically, a powder of the plant growth promoting composition of the present invention is suspended in water, and the suspension is laid on a nursery of a plant, and the plant is planted or sowed.

 When the plant growth promoting composition of the present invention is used by spraying or mixing on soil, the amount of the plant growth promoting composition of the present invention to be used is 5% to 50% by volume based on the soil, preferably 5% to 20%. The suspension can be used, for example, by preparing a suspension, filtering the suspension in a nursery pot to form a slurry layer, sowing the seed in that portion, or planting a plant. The amount of water in preparing the suspension is 3 to 10 times, preferably 3 to 4 times the composition.

 Further, the powder of the plant growth promoting composition of the present invention may be directly subjected to slug tableting with a tableting machine and sized to obtain granules, and the granules may be tabletted to form tablets.

 When forming into granules and tablets, chemical fertilizers such as urea can be added as necessary. The amount of chemical fertilizer added as needed is 0.1 to 10% by weight based on cellulose.

 Preferred combinations as the plant growth promoting composition of the present invention include those composed of cellulose, silica gel, diatomaceous earth and calcium carbonate, and those composed of cellulose, silica gel and diatomaceous earth, and particularly preferred are crystalline cellulose, hydrous dioxide. Examples include those composed of silicon, diatomaceous earth and calcium carbonate, and those composed of crystalline cellulose, hydrous silicon dioxide and diatomaceous earth.

It is preferable that the plant growth promoter of the present invention formed into granules and tablets is sprayed or laid on the soil, watered to sufficiently swell, and then planted and sown. A specific method of using the plant growth promoter of the present invention formed into granules and tablets is as follows: 'For example, a hollow is formed in the soil, and one or a few grams of tablets or granules are placed in the portion, and watering is performed. And tablets The granules should be sufficiently swollen and seeded or planted in that area.

 The plant using the plant growth promoter of the present invention is not particularly limited, and examples thereof include the following.

 1.Vegetables

(1) Root vegetables (oil rape, radish, turnip, etc .; Aceraceae, such as carrots; Chrysanthemum, such as gopo, etc .;.

 (2) Leafy vegetables (Yuri onion, onion, etc .; oilseed vegetables such as Chinese cabbage, oilseed rape, cabbage, potato rifula, broccoli, etc.)

 (3) Fruits and vegetables (Aoaceae such as okra; Eggplants such as eggplants, tomatoes, and peppers; Uriaceae such as cucumber, watermelon, capochiya, and soybeans)

 (4) Beans (green beans, endu, fava beans, soybeans, azuki, etc.)

 2. Flowers and bulbs

 (5) Flowers (Rhododendron, Azalea, Kambai, etc.)

 (6) Bulbs (amaryllis, tulip, hyacinth, crocus, lily, daffodil, etc.) 3. Cereals

 (7) Rice, wheat, oats, embak, buckwheat, etc.

 4.Medicinal plants

 (8) Ginseng, Psycho, Sairen, Japanese konkon, Kanzo, etc.

 5. Mushrooms (mycorrhizal fungi)

(9) Matsutake, hon-shimeji, show mouth, truffle, etc.

 6.turf

 (10) Koroshiba, Western turf, etc.

 A chemical fertilizer, an organic fertilizer, a plant energy activator, or the like can be used in combination with the plant growth promoter of the present invention.

 Example

Next, the present invention will be described with reference to Examples and Preparation Examples, but the present invention is not limited thereto. The crystalline cellulose in Examples and Formulation Examples was Avicel PH302 (Asahi Kasei); the powdered cellulose was Vitacell (Miki Sangyo); the hydrous silicon dioxide was Powerplex # 80 (Shionogi); Powder 16 (Hodogaya Chemical) was used for each.

Example 1

 • Plant growth promoter: Use crystalline cellulose suspended in water and mixed with field soil

Observation of above ground and underground parts

 • Examination plant: Gross radish

 • Observation items: Observation of aboveground and underground parts at appropriate times after sowing and measurement of length • Cultivation method

Without promoter: 10 days in seedling raising pot, then transplanted to planter for growth (control) With promoter: 6 days in germination pot, 4 days in seedling pot, then transferred to planter and grown (seeding) Number: each group 30)

Table 1 shows the observation results.

 【table 1】

Summary of observations

 • The germination rate was better with the accelerator.

 • Growth of aboveground parts was better without promoters up to two weeks, but then with promoters. The growth of the true leaves was also better with the promoter.

 • The growth of the underground part was better with the promoter than immediately after germination, and it was about 5 times longer 10 days after sowing.

• Promoters promote post-emergence root growth, so that the growth of above-ground parts for some time after germination Although delayed, the roots grew well and the above-ground parts also grew better.

Example 2 (Bread coating method)

After specific gravity selection, seed disinfection and air-dried Koshihikari paddy 150 _g , plant growth promoting composition (crystalline cellulose: hydrous silicon dioxide: diatomaceous earth = 20: 1: 4) 45 g, 2% (w / v) corn starch aqueous solution And coated with sugar-coated bread [bread rotation speed: 20 rpm, binder solution spraying speed: 10 mlV, operating temperature: room temperature] to obtain 180 g of a 20% by weight plant-growth promoting composition coated Koshihikari paddy.

Example 3 (immersion method)

After specific gravity selection, seeds were disinfected and 150 g of air-dried Koshihikari rice was immersed in 2 L of a 2% (w / v) starch aqueous solution, and then filtered on a 10.5 mesh sieve to drain water. 70 g of a plant growth composition (cellulose: hydrous silicon dioxide: diatomaceous earth = 20: 1: 4) is applied to the paddy, and a composition containing cellulose that is not applied to the paddy through a 10.5 mesh sieve is applied to the paddy. After the removal, it was air-dried at room temperature to obtain 200 _g of Koshihikari rice paddy coated with 25% by weight of the plant growth composition.

Example 4

 After specific gravity selection, seeds are disinfected and air-dried Koshihikari paddy is used with a 2% (w / v) cornstarch aqueous solution of a plant growth composition (crystal cell mouth: hydrous silicon dioxide: diatomaceous earth = 20: 1: 4). Then, 6.4% (sample No. l), 9.4% (sample No. 2), and 12.0% (sample No. 3) were coated by a centrifugal fluidized granulator (CF granulator), respectively. . The coated paddy was sown on a germination floor (absorbent cotton + paper pulp / polyethylene weighing dish), and 25 husks of each sample were sown, and the number of germination and bud length on the 7th day were examined. As a control, uncoated paddy was simultaneously sown. Table 2 shows the results.

 [Table 2] Bud length

 Group germination

 Mean (cm) Standard deviation

 Control 1 8/25 7.0 6.0

 Sample No. 1 (6.4¾ coated) 25/25 9. 3 3.6

 Sample No. 2 (9. ^ coating) 25/25 1 3.2.4.8

Sample No. 3 (1 2, 0% coating) 25/25 1 0.4. 4.1 As shown in Table 2, the paddy coated with the plant growth promoting composition had a higher germination rate and a longer bud length than the control group. Also, the standard deviation of the bud length was smaller in the coated seeds, and the coated paddies were also superior in synchrony.

Example 5

 After specific gravity selection, seeds are disinfected and air-dried Koshihikari paddy is used with a 2% (w / v) cornstarch aqueous solution of a plant growth composition (crystal cell mouth: hydrous silicon dioxide: diatomaceous earth = 20: 1: 4). Then, 10% and 50% of the coating amount were coated by a CF granulator, respectively. The coated paddy was sown on a nursery to grow seedlings.

 On the other hand, as a control group, seed rice was subjected to specific gravity selection, disinfection, immersion, and germination by a conventional method, and then sown on a nursery to grow seedlings. Each seedling was transplanted, and growth was observed using changes in plant height, number of stems, and leaf age as indices. Table 3 shows the results. Table 4 shows the results obtained for the yield.

 [Table 3]

表 3に示した通り、 植物成長促進組成物を被覆した籾の成育 （草丈、 茎数、 葉令） は、 対照群とほぼ同じであった。

As shown in Table 3, the growth (plant height, number of stems, leaf age) of the paddy coated with the plant growth promoting composition was almost the same as that of the control group.

Brown rice weight per 10 liters

 [Table 4] Control section 501 kg

 Cover 10% zone 521 kg

532kg 50 被覆 As shown in Table 4, the yield of brown rice increased 4% in the 10% covered area and 6% in the 50% covered area, as compared to the control section.

Example 6

 Using a plant growth promoting composition (crystalline cellulose: hydrous silicon dioxide: diatomaceous earth = 20: 1: 4) and a binder (2% (w / v) corn starch aqueous solution) to 300 g of sugar beet seeds, a CF granulator As a result, coated sugar beet seeds having a coating amount of 10% (70 g), 20% (85 g), 50% (120 g), and 100% (270 g) were obtained.

 182 grains each of 20% and 50% coated sugar beet seeds and uncoated sugar beet seeds were sowed in paper pots, and were planted 56 days after sowing. Table 5 shows the number of germinations 9 days after sowing and the total root weight (added weight when n = 20) 65 days after planting.

 [Table 5]

表 5に示したように、 発芽数が対照群に比べ、 被覆 20%群で 7%、 被覆 50%群で 13%、 それぞれ増加した。 また、 根重量において、 対照群に比べ、 被覆 20%群で 10%、 被覆 50% 群で 26%、 それぞれ増加した。

As shown in Table 5, the number of germinated plants increased by 7% in the 20% coated group and by 13% in the 50% coated group, as compared to the control group. Root weight increased by 10% in the 20% coated group and 26% in the 50% coated group, compared to the control group.

Example 7

100 _{g of} lawn seeds (western turf for garden) and 20 _g of plant growth promoting composition (crystalline cellulose: hydrous silicon dioxide: diatomaceous earth = 20: 1: 4) are mixed in a 1 L container, and then 2% (w / v) 100 _g of corn starch aqueous solution and 100 _g of water were added and mixed. This was spread on an aluminum grasshopper and blown dry overnight to obtain 121 g of a 20% by weight coated lawn seed.

Example 8

 Using 150 g of lawn seeds, a plant growth promoting composition (crystalline cellulose: hydrous silicon dioxide: diatomaceous earth -20: 1: 4), 60 g and 2% (w / v) corn starch aqueous solution, coating with a CF granulator, 180 g of a 20% by weight coated lawn seed was obtained.

Example 9

After soaking 50 grains of cantaloupe seeds with 2% (w / v) corn starch aqueous solution lOOmL, 10.5 The mixture was filtered on a mesh sieve and drained. 2 g of a plant growth promoting composition (crystal cell mouth: hydrous silicon dioxide: diatomaceous earth: precipitated calcium carbonate = 20: 1: 2: 1) is applied to the seeds (the composition is sieved with a 30-mesh sieve). Then, the composition that was not applied to the seeds was removed with a 10.5 mesh sieve, and then air-dried at room temperature to obtain 50 20% by weight coated melon seeds.

Example 10

 After specific gravity sorting, seed disinfection and air-dried Koshihikari rice 100 g, plant growth promoting composition [(crystalline cellulose: hydrous silicon dioxide ': diatomaceous earth = 20: 1: 4) 20 g and calcium peroxide 200 g mixture] Using a 220 g and 2% (w / v) corn starch aqueous solution, a CF granulator was used to obtain 300 g of coated paddy (A), 200% by weight based on the paddy.

Example 1 1

 After specific gravity selection, seed disinfection and air-dried Koshihikari paddy 100 g, plant growth promoting composition [(crystal cell mouth: hydrous silicon dioxide: diatomaceous earth = 20: 1: 4) 75 g and calcium peroxide 150 g mixed Using a 225 g and 2% (w / v) corn starch aqueous solution, a CF granulator was used to obtain 300 g of coated paddy (B) coated at 200% by weight with respect to the paddy.

 On the other hand, seeds were disinfected after specific gravity selection, and 100 g of air-dried Koshihikari paddy, 210 g of calcium peroxide powder and granules, and 2% (w / v) corn starch aqueous solution were used. 300 g (C) of the coated paddy by weight were obtained.

 The coated paddy (A), the coated paddy (B), the coated paddy (C) and the uncoated paddy (D) are sown in a 400 mL balance dish containing bamikiulite-peete moss (3: 2) and sown. One week later, the plant height (n = 5) was examined. The result is that for covered paddy (D) 33mm,

(A) 64 mm> covered paddy (B) 68 mm, covered paddy (C) 54 mm.

Formulation Example 1

200 _{g of} crystalline cellulose and 10 _g of hydrated silicon dioxide were mixed and slug tableted to obtain 205 g of slug tablets.

 Tableting conditions: tableting machine (HT P-18), Usuki (15ππηφ flat type), tablet weight (900 ~:! OOOOmg),

 Tableting pressure (3000kgf)

 This slug tablet was sized with a mortar and a 24-mesh sieve to obtain 200 g of granules.

Formulation Example 2 500 g of crystalline cellulose and 25 g of hydrated silicon dioxide were mixed and slug tableting and sizing were performed in the same manner as in Example 1 to obtain 515 g of granules. Further, the granules were tableted to obtain 500 g of tablets. Tableting conditions:. Tableting machine (HT P- 18), Usuki (15ππη φ flat), tablet weight (900 ~ 1000 mg) Tableting pressure (3000k _g f)

The tablet properties are as follows.

 Tablet diameter: 15 mm φ, tablet thickness: 6 mm, tablet weight: 950-; I050 mg, disintegration (water): 10-20 seconds Formulation Example 3

 200 g of crystalline cellulose, 10 g of hydrous silicon dioxide, and 20 of calcium carbonate were mixed, and slug tableting, sizing and tableting were carried out in the same manner as in Preparation Example 2 to obtain 215 g of tablets.

The tablet properties are as follows.

 Tablet diameter: 15mm φ, tablet thickness: 5.8mm, tablet weight: 950-1050mg, disintegration (water): 10-20 seconds Formulation Example 4

 200 g of crystalline cellulose, 20 g of hydrated silicon dioxide, 40 g of calcium carbonate, and 20 g of glucose were mixed, and slug tableting, sizing and tableting were carried out in the same manner as in Preparation Example 2 to obtain 255 g of tablets.

The tablet properties are as follows.

 Tablet diameter: 15 mm φ, tablet thickness: 5.6 mm, tablet weight: 950 to: I050 mg, disintegration (water): 30 to 45 seconds Formulation Example 5

 500 g of crystalline cellulose, 25 g of hydrated silicon dioxide, 50 g of calcium carbonate, and 25 g of urea were mixed and subjected to slug tableting and sizing in the same manner as in Preparation Example 1 to obtain 575 g of granules.

 Formulation Example 6

 300 g of the granules produced in Formulation Example 5 were tableted in the same manner as in Formulation Example 2 to obtain 285 g of tablets.

The tablet properties are as follows.

Tablet diameter: 15 mm phi, pill thickness: 5.6 mm, the tablet weight: 9 ⁵ 0~1050mg, Kuzure壌(water): 60 to 80 seconds Formulation Example 7

 1000 g of crystalline cellulose, 50 g of hydrated silicon dioxide, and 100 g of diatomaceous earth were mixed and directly compressed into tablets to obtain 1080 g of tablets.

 Tableting conditions: tableting machine (HT P-18), Usuki (15πιπιΦ flat type), tablet weight (950-150mg), tableting pressure (1500-1600kgf)

The tablet properties are as follows. Tablet diameter: 15ππηφ, tablet thickness: 5.0 mm, tablet weight: 950 to: 1050 mg, disintegration (water); 10 to ²⁰ seconds Formulation Example 8

1000 g of crystalline cellulose, 50 g of hydrated silicon dioxide, 100 g of diatomaceous earth, and 50 g of calcium carbonate were mixed and directly tableted under the tableting conditions of Formulation Example 7 to obtain 1100 _g of tablets.

The tablet properties are as follows.

 Tablet diameter; 15ηπη φ, tablet thickness: 5.2mm, tablet weight: 950 to 5050mg, disintegration (water); 5 to 15 seconds

 Industrial applicability

 Seed seeds coated with the composition for seed coating containing the plant growth promoting composition of the present invention can omit seed soaking and sprouting work in seed preparation, thereby saving labor for raising rice seedlings. However, since the disinfectant dissolves from the seeds that have been disinfected, no waste liquid is generated in the soaking, which is also preferable from an environmental point of view.

 In addition, paddy, sugar beet, western turf, muskmelon, and the like coated with the composition for seed coating containing the plant growth promoting composition of the present invention not only have an improved germination rate but also have a good growth, and particularly, rice and the like. For cereals and root crops such as sugar beets, an increase in yield can be expected.

 Furthermore, the composition for promoting plant growth of the present invention is effective not only in promoting germination and growth of vegetables, but also in promoting germination and growth of flowers and bulbs. In addition, sufficient root development can shorten the time to harvest in the case of vegetables · High yield; shorten the time until flowering in the case of flowers and bulbs · High resistance to various pathogens it can.

Claims

The scope of the claims  1. The following components (A) and (B):  (A) Cellulose  (B) one or more components selected from silica gel, diatomaceous earth, alum, calcium carbonate, calcium peroxide, and glucose  A plant growth promoting composition comprising:  2. The plant growth promoting composition according to claim 1, wherein the cellulose as the component (A) is crystalline cellulose or powdered cellulose.  3. The plant growth promoting composition according to claim 1, wherein the component (B) is at least one component selected from silica gel, diatomaceous earth, and calcium carbonate.  4. The following components (A), (B) and (C):  (A) Cellulose  (B) one or more components selected from silica gel, diatomaceous earth, alum, calcium carbonate, calcium peroxide, and glucose  (C) Binder  A composition for coating a seed, comprising:  5. The seed coating composition according to claim 4, wherein the cellulose as the component (A) is crystalline cellulose or powdered cellulose.  6. The seed coating composition according to claim 4, wherein the component (B) is one or more components selected from silica gel, diatomaceous earth, calcium carbonate, and calcium peroxide.  7. The seed coating composition according to claim 4, wherein the component (C) is starch.  8. A coated seed coated with the seed coating composition according to claim 4.  9. After specific gravity sorting, the disinfected paddy is divided into the following components (A), (B) and (C)  (A) Cellulose  (B) one or more components selected from silica gel, diatomaceous earth, alum, calcium carbonate, calcium peroxide, and glucose  (C) Binder  A method for preparing rice seeds, comprising coating with a composition comprising: 10. The cellulose of component (A) is crystalline cellulose or powdered cellulose. 9. Method for preparing seeds of rice according to 9. 1. The method according to claim 9 or 10, wherein the component (B) is at least one component selected from silica gel, diatomaceous earth, calcium carbonate and calcium peroxide. 2. The method for preparing seeds of rice according to claim 9, wherein the component (C) is starch.