CA1114187A - Process for producing coated seed - Google Patents
Process for producing coated seedInfo
- Publication number
- CA1114187A CA1114187A CA330,265A CA330265A CA1114187A CA 1114187 A CA1114187 A CA 1114187A CA 330265 A CA330265 A CA 330265A CA 1114187 A CA1114187 A CA 1114187A
- Authority
- CA
- Canada
- Prior art keywords
- coating
- water
- soluble binder
- coating powder
- seed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S47/00—Plant husbandry
- Y10S47/09—Physical and chemical treatment of seeds for planting
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides coated seeds, the coating of which has sufficient hardness for machine-seeding and adequate disintegration characteristics in soil. Each coated seed comprises a process for producing a coated seed, which comprises mixing a coating powder with an aqueous solution of a water-soluble binder, drying the resulting mixture, powdering the mixture, and then coating a seed using the resulting surface-treated coating powder, wherein the amount of the water-soluble binder is 0.1 to 20% by weight based on the weight of the coating powder.
The present invention provides coated seeds, the coating of which has sufficient hardness for machine-seeding and adequate disintegration characteristics in soil. Each coated seed comprises a process for producing a coated seed, which comprises mixing a coating powder with an aqueous solution of a water-soluble binder, drying the resulting mixture, powdering the mixture, and then coating a seed using the resulting surface-treated coating powder, wherein the amount of the water-soluble binder is 0.1 to 20% by weight based on the weight of the coating powder.
Description
1 The present invention relates to the prepara-tion of coated seeds. Hitherto, increasing the bulk of seeds by coating them with an inorganic substance has been carried out for the ease of mechanical sowing ;~
and handling, and for the long~term storage. Specifically, there have been employed processes in which seeds are coated, on a coating machine, with a powder material (e.g. diatomaceous earth, calcium carbonate, talc, silica, ~aolin-clay, zeolite, bentonite, vermiculite) through a water-soluble binder [e.g. starch, polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), methyl cellulose (MC), gelatin].
When such well-~nown processes are, however, applied to the coating of fine seeds such as flower - 15 seeds, it is common that coated seeds having not only nonuniform particle size but also soft coating layer are only obtained. Consequently, there are troubles such as breaking of coating layers on mechanical sowing, automatlc filling or transportation.
Further, coated seeds should be easy to disintegrate by mois~ure in soil.
As a result of extensive study to solve the foregoing problems, the inventors found that coated seeds having a narrow particle size distribution and moderate hardness can be produced by coating seeds . , .
. , , , . - - . . .
' ' , ' ,' ' . :' ~ : : ' ' : , . ' .
. .
With a coating powder previousl~ surface-treated with a water-soluble binder.
The present invention provides a process for producing -a coated seed,which comprises mixing a coating powder with an aqueous solution of water-soluble binder, drying the resulting mixture, powdering the mixture, and then coating a seed using the resulting surface-treated coating powder, wherein the amount of thewater-soluble binder is 0.1 to 20~ by weight based on the weight of the coating powder.
The present invention also provides a coated seed com-prising a seed and a coating thereon of a coating powder, said coating powder having been previously treated by mixing the powder with an aqueous solution of a water-soluble binder, drying the resulting mixture and powdering the mixture, said resulting treated coating powder being bonded by a water-solu- ;
ble binder to said seed to form a coating thereon, wherein the amount of the water-soluble binder is 0.1 to 20% by weight 20 based on the weight of the coating powder.
The water-soluble binders used in the present invention include starch, PVA, CMC, MC, gelatin, pullulan and the like. The amount of the binder usecl is 0.1 to 20% by weight, 25 preferably 0.5 to 5% by weight, based on the weight of the ~;
coating powder.
The coating powders used in the presentinvent-on in-clude, for example, diatomaceous earth, aluminum hydroxide, `~
calcium hydroxide, magnesium hydroxide, barium hydroxide, cal-cium sulfate, calcium sulfite, basic magnesium carbonate, kaolin-clay, dolomite, talc, zeolite, illite, halloysite, bentonite, vermiculite, microlite, peat moss and the like. ``
These powders may be used alone or in combination. Of these, diatomaceous earth, kaolin-clay, dolomite, talc and bentonite are particularly preferred. The mean particle size of these ;':
and handling, and for the long~term storage. Specifically, there have been employed processes in which seeds are coated, on a coating machine, with a powder material (e.g. diatomaceous earth, calcium carbonate, talc, silica, ~aolin-clay, zeolite, bentonite, vermiculite) through a water-soluble binder [e.g. starch, polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), methyl cellulose (MC), gelatin].
When such well-~nown processes are, however, applied to the coating of fine seeds such as flower - 15 seeds, it is common that coated seeds having not only nonuniform particle size but also soft coating layer are only obtained. Consequently, there are troubles such as breaking of coating layers on mechanical sowing, automatlc filling or transportation.
Further, coated seeds should be easy to disintegrate by mois~ure in soil.
As a result of extensive study to solve the foregoing problems, the inventors found that coated seeds having a narrow particle size distribution and moderate hardness can be produced by coating seeds . , .
. , , , . - - . . .
' ' , ' ,' ' . :' ~ : : ' ' : , . ' .
. .
With a coating powder previousl~ surface-treated with a water-soluble binder.
The present invention provides a process for producing -a coated seed,which comprises mixing a coating powder with an aqueous solution of water-soluble binder, drying the resulting mixture, powdering the mixture, and then coating a seed using the resulting surface-treated coating powder, wherein the amount of thewater-soluble binder is 0.1 to 20~ by weight based on the weight of the coating powder.
The present invention also provides a coated seed com-prising a seed and a coating thereon of a coating powder, said coating powder having been previously treated by mixing the powder with an aqueous solution of a water-soluble binder, drying the resulting mixture and powdering the mixture, said resulting treated coating powder being bonded by a water-solu- ;
ble binder to said seed to form a coating thereon, wherein the amount of the water-soluble binder is 0.1 to 20% by weight 20 based on the weight of the coating powder.
The water-soluble binders used in the present invention include starch, PVA, CMC, MC, gelatin, pullulan and the like. The amount of the binder usecl is 0.1 to 20% by weight, 25 preferably 0.5 to 5% by weight, based on the weight of the ~;
coating powder.
The coating powders used in the presentinvent-on in-clude, for example, diatomaceous earth, aluminum hydroxide, `~
calcium hydroxide, magnesium hydroxide, barium hydroxide, cal-cium sulfate, calcium sulfite, basic magnesium carbonate, kaolin-clay, dolomite, talc, zeolite, illite, halloysite, bentonite, vermiculite, microlite, peat moss and the like. ``
These powders may be used alone or in combination. Of these, diatomaceous earth, kaolin-clay, dolomite, talc and bentonite are particularly preferred. The mean particle size of these ;':
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powders is preferably 10 ~ or less, particularly preferably 1 ~ or less.
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1 As is well-known to the skilled in the art, additives such as growth hormone compounds, fungicides and colouring agents may be added to these powders.
In carrying out the process of the present -invention, for example, an aqueous solution of the water-soluble binder is mixed thoroughly with the coating powder, and the mixture is dried by heating to obtain a solid substance. The concentration of the aqueous solution is not particularly limited, but generally it is preferably 0.1 to 10% by weight. The solid substance obtained is powdered to a mean particle size of preferably 10 ~ or less, particularly preferably 1 ~ or less, and then used for coating seeds. In carrying out this surface treatment on an industrial scaie, methods of treating a slurry comprising the powder, binder and water by a spray-drier, or methods using a Henschel mlxer or kneader are properly selected.
In order to display the characteristics of the present invention suf~iciently, the surface of the coating powder is uniformly treated with the water-soluble binder. For this purpose, the concentration and amount of the aqueous solution of the water-soluble -~ -binder are properly varied depending upon the particle ~
size, surface state and shape of the coating powder. -The coating powder thus sur~ace-treated is applied to the coating of seeds by the usual ways. ;`
The coating machines used in the present invention include for example sugar coating machines, centrifugal ~,.
_ 3 _ .: - . . ,. . . . . . . .:
:. , : - - , ; .
1 fluidizing coating machines, fluidized bed coating machines and the like.
Of course, the process of the present invention may also be applied to the coating of seeds of different shapes.
The coated seeds obtained by the present invention have the following characteristics: (1) They are easy in handling and helpful in saving the amount of seeds by mechanical sowing, shortening sowing time 10 and saving labour for thinning; (2) the shell life of ~
the coated seeds can be prolonged by properly controlling ;
the moisture content and the thickness of the coating layer; (3) coated seeds having a higher surface hardness can be obtained with less amount of the water-soluble binder because the binder displays a larger effect than in the conventional coating processes; (4) and the coating layer easily disintegrates after sowing by the action of moisture in soiI with no effect on germination and growth like in the sowing of uncoated seeds.
The present invention will be illustrated in more detail with reference to the following e~amples, which are only given for the purpose of illustration and not to be interpreted as limiting the invention thereto.
::;
Example 1 -~ (1) Surface treatment of diatomaceous earth ;
Diatomaceous earth (250 8) and an aqueous -- , :
~ 4 ~
, -. - .
' : ' ' . : . . . .
1 solution (250 cc) co~taining 2% by weight of CMC (Cellogen ~ a~h?a~k ~
6A, ~ ee~ Daiichi Kogyo Seiyaku Co.) were together kneaded into paste. The paste was then dried at 105C
for 3 hours in a hot-air drier, powdered to a mean particle size of 5 ~ by a pulverizer to obtain a coating material of the surface-treated diatomaceous earth.
(2) Coating The seeds of petunia (6 g) were placed in a sugar-coating pan and tumbled with the above surface- ~ -10 treated diatomaceous earth (250 g) by the alternate ;
addition of the diatomaceous earth, while an aqueous solution (250 cc) containing 1% by weight of CMC was sprayed thereto (spraying pressure, 0.5 kg/cm2; spray nozzle, 0.2 mm~). The tumbling was stopped when the size of the seeds reached about 3 times as large as the initial size. The coated seeds were withdrawn ;
from the pan and dried at 35C for 15 hours in a hot-air drier to obtain a product. The results obtained are shown in Table 1.
~` '':
20 Example 2 ~ -(1) Surface treatment of kaolin-clay Kaolin-clay (250 g) and an aqueous solution (250 cc) containing 1.% by weight of pullulan (mean molecular weight, 100,000) were together kneaded into paste. ;
The paste was then dried at 105C for 3 hours in a hot-air drier, powdered to a mean particle size of 5 by a pulverizer to obtain a coating material of the ~: .
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.
- . .
.
- , . , ~ .
.. . . ..
: :
z g~
1 surface-treated kaolin-clay.
(2) Coating The seeds of petunia (6 g) were placed in a sugar-coating pan and tumbled with the above sur~ace-treated kaolin clay (250 g) by the alternate additionof the kaoIin-clay, while an aqueous solution (250 cc) containing 1% by weight of pullulan was sprayed thereto (spraying pressure, o.4 kg/cm2; spray nozzle, 0.2 mm~).
The tumbling was stopped when the size of seeds reached ;~
about 3 times as large as the initial size. The coated seeds were withdrawn from the pan and dried at 35C
for 15 hours in a hot-air drier to obtain a product.
The results obtained are shown in Table 1.
Comparative example 1 Coating was carried out in the same manner as in Example 1 except that the seeds were coated with untreated diatomaceous earth (250 g) while spraying -an aqueous solution (250 cc) containing 3% by weight of CMC (Cellogen 6 A, produced by Daiichi Kogyo Seiyaku Co.) (spraying pressure, 0.7 kg/cm2; spray nozzle, 0.2 mm~). The results obtalned are shown in Table 1.
:
Comparative example 2 Coating was carried out in the same manner as in Example 1 except that the seeds were coated with ~
25 untreated diatomaceous earth (250 g) while spraying ~ -an aqueous solution (250 cc) containing 5% by weight " ., ~ .
: : . .:: ..
. : :
. . : ~ ~ :
' ,. ~ ,i ; ~
1 of CMC (Cellogen 6 A, produced by Daiichi Kogyo Seiyaku Co.) (spraying pressure, 1.0 kg/cm2; spray nozzle, 0.2 mm~). The results obtained are shown in Table 1.
Comparative example 3 Coating was carried out in the same manner as in Example 2 except that the seeds were coated with untreated kaolin-clay (250 g) while spraying an aqueous solution (250 cc) containing 2% by weight of pullulan (mean molecular weight, 100,000) (spraying pressure, 0.5 kg/cm2; spray nozzle, 0.2 mm~). The results obtained are shown in Table 1. ~-Comparative example 4 ~.
Coating was carried out in the same manner as in Example 2 except that the seeds were coated with untreated kaolin-clay (250 g) while spraying an aqueous solution (250 cc) containing 4% by weight of pullulan -(mean molecular weight, 100,000) (spraying pressure, o.6 kg/cm2; spray nozzle, 0.2 mm~). The results obtained are shown in Table 1.
The coated petunia seeds obtained by the present invention were very good in germination with the same rate of germination as in uncoated petunia seeds.
Also, difference in growth was not observed.
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powders is preferably 10 ~ or less, particularly preferably 1 ~ or less.
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1 As is well-known to the skilled in the art, additives such as growth hormone compounds, fungicides and colouring agents may be added to these powders.
In carrying out the process of the present -invention, for example, an aqueous solution of the water-soluble binder is mixed thoroughly with the coating powder, and the mixture is dried by heating to obtain a solid substance. The concentration of the aqueous solution is not particularly limited, but generally it is preferably 0.1 to 10% by weight. The solid substance obtained is powdered to a mean particle size of preferably 10 ~ or less, particularly preferably 1 ~ or less, and then used for coating seeds. In carrying out this surface treatment on an industrial scaie, methods of treating a slurry comprising the powder, binder and water by a spray-drier, or methods using a Henschel mlxer or kneader are properly selected.
In order to display the characteristics of the present invention suf~iciently, the surface of the coating powder is uniformly treated with the water-soluble binder. For this purpose, the concentration and amount of the aqueous solution of the water-soluble -~ -binder are properly varied depending upon the particle ~
size, surface state and shape of the coating powder. -The coating powder thus sur~ace-treated is applied to the coating of seeds by the usual ways. ;`
The coating machines used in the present invention include for example sugar coating machines, centrifugal ~,.
_ 3 _ .: - . . ,. . . . . . . .:
:. , : - - , ; .
1 fluidizing coating machines, fluidized bed coating machines and the like.
Of course, the process of the present invention may also be applied to the coating of seeds of different shapes.
The coated seeds obtained by the present invention have the following characteristics: (1) They are easy in handling and helpful in saving the amount of seeds by mechanical sowing, shortening sowing time 10 and saving labour for thinning; (2) the shell life of ~
the coated seeds can be prolonged by properly controlling ;
the moisture content and the thickness of the coating layer; (3) coated seeds having a higher surface hardness can be obtained with less amount of the water-soluble binder because the binder displays a larger effect than in the conventional coating processes; (4) and the coating layer easily disintegrates after sowing by the action of moisture in soiI with no effect on germination and growth like in the sowing of uncoated seeds.
The present invention will be illustrated in more detail with reference to the following e~amples, which are only given for the purpose of illustration and not to be interpreted as limiting the invention thereto.
::;
Example 1 -~ (1) Surface treatment of diatomaceous earth ;
Diatomaceous earth (250 8) and an aqueous -- , :
~ 4 ~
, -. - .
' : ' ' . : . . . .
1 solution (250 cc) co~taining 2% by weight of CMC (Cellogen ~ a~h?a~k ~
6A, ~ ee~ Daiichi Kogyo Seiyaku Co.) were together kneaded into paste. The paste was then dried at 105C
for 3 hours in a hot-air drier, powdered to a mean particle size of 5 ~ by a pulverizer to obtain a coating material of the surface-treated diatomaceous earth.
(2) Coating The seeds of petunia (6 g) were placed in a sugar-coating pan and tumbled with the above surface- ~ -10 treated diatomaceous earth (250 g) by the alternate ;
addition of the diatomaceous earth, while an aqueous solution (250 cc) containing 1% by weight of CMC was sprayed thereto (spraying pressure, 0.5 kg/cm2; spray nozzle, 0.2 mm~). The tumbling was stopped when the size of the seeds reached about 3 times as large as the initial size. The coated seeds were withdrawn ;
from the pan and dried at 35C for 15 hours in a hot-air drier to obtain a product. The results obtained are shown in Table 1.
~` '':
20 Example 2 ~ -(1) Surface treatment of kaolin-clay Kaolin-clay (250 g) and an aqueous solution (250 cc) containing 1.% by weight of pullulan (mean molecular weight, 100,000) were together kneaded into paste. ;
The paste was then dried at 105C for 3 hours in a hot-air drier, powdered to a mean particle size of 5 by a pulverizer to obtain a coating material of the ~: .
` ~.. ,, :
.
- . .
.
- , . , ~ .
.. . . ..
: :
z g~
1 surface-treated kaolin-clay.
(2) Coating The seeds of petunia (6 g) were placed in a sugar-coating pan and tumbled with the above sur~ace-treated kaolin clay (250 g) by the alternate additionof the kaoIin-clay, while an aqueous solution (250 cc) containing 1% by weight of pullulan was sprayed thereto (spraying pressure, o.4 kg/cm2; spray nozzle, 0.2 mm~).
The tumbling was stopped when the size of seeds reached ;~
about 3 times as large as the initial size. The coated seeds were withdrawn from the pan and dried at 35C
for 15 hours in a hot-air drier to obtain a product.
The results obtained are shown in Table 1.
Comparative example 1 Coating was carried out in the same manner as in Example 1 except that the seeds were coated with untreated diatomaceous earth (250 g) while spraying -an aqueous solution (250 cc) containing 3% by weight of CMC (Cellogen 6 A, produced by Daiichi Kogyo Seiyaku Co.) (spraying pressure, 0.7 kg/cm2; spray nozzle, 0.2 mm~). The results obtalned are shown in Table 1.
:
Comparative example 2 Coating was carried out in the same manner as in Example 1 except that the seeds were coated with ~
25 untreated diatomaceous earth (250 g) while spraying ~ -an aqueous solution (250 cc) containing 5% by weight " ., ~ .
: : . .:: ..
. : :
. . : ~ ~ :
' ,. ~ ,i ; ~
1 of CMC (Cellogen 6 A, produced by Daiichi Kogyo Seiyaku Co.) (spraying pressure, 1.0 kg/cm2; spray nozzle, 0.2 mm~). The results obtained are shown in Table 1.
Comparative example 3 Coating was carried out in the same manner as in Example 2 except that the seeds were coated with untreated kaolin-clay (250 g) while spraying an aqueous solution (250 cc) containing 2% by weight of pullulan (mean molecular weight, 100,000) (spraying pressure, 0.5 kg/cm2; spray nozzle, 0.2 mm~). The results obtained are shown in Table 1. ~-Comparative example 4 ~.
Coating was carried out in the same manner as in Example 2 except that the seeds were coated with untreated kaolin-clay (250 g) while spraying an aqueous solution (250 cc) containing 4% by weight of pullulan -(mean molecular weight, 100,000) (spraying pressure, o.6 kg/cm2; spray nozzle, 0.2 mm~). The results obtained are shown in Table 1.
The coated petunia seeds obtained by the present invention were very good in germination with the same rate of germination as in uncoated petunia seeds.
Also, difference in growth was not observed.
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Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A process for producing a coated seed, which comprises mixing a coating powder with an aqueous solution of a water-soluble binder, drying the resulting mixture, pow-dering the mixture, and then coating a seed using the re-sulting surface-treated coating powder, wherein the amount of the water-soluble binder is 0.1 to 20% by weight based on the weight of the coating powder.
2. A process according to claim 1, wherein the coating powder is one member selected from diatomaceous earth, aluminum hydroxide, calcium hydroxide, mangesium hydroxide, barium hydroxide, calcium sulfate, calcium sulfite, basic magnesium carbonate, kaolin-clay, dolomite, talc, zeolite, illite, hall-oysite, bentonite, vermiculite, microlite and peat moss.
3. A process according to claim 1, wherein the water-soluble binder is one member selected from starch, polyvinyl alcohol, carboxymethyl cellulose, methyl cellulose, gelatin and pullulan.
4. A process according to claim 1, wherein the aqueous solution of the water-soluble binder is in a concentration of 0.1 to 10% by weight.
5. A process according to claim 1, wherein the pow-dering is carried out so as to make a mean particle size of the mixture 10 ~ or less.
6. A process according to claim 1, wherein the coating is carried out using a water-soluble binder.
7. A coated seed comprising a seed and a coating there-on of a coating powder, said coating powder having been pre-viously treated by mixing the powder with an aqueous solution of a water-soluble binder, drying the resulting mixture and powdering the mixture, said resulting treated coating powder being bonded by a water-soluble binder to said seed to form a coating thereon, wherein the amount of the water-soluble binder is 0.1 to 20% by weight based on the weight of the coating powder.
8. A coated seed according to claim 7, wherein the coating powder is one member selected from diatomaceous earth, aluminum hydroxide, calcium hydroxide, magnesium hydroxide, barium hydroxide, calcium sulfate, calcium sulfite, basic mag-nesium carbonate, kaolin-clay, dolomite, talc, zeolite, illite, halloysite, bentonite, vermiculite, microcite and peat moss.
9. A coated seed according to claim 7, wherein the water-soluble binder is one member selected from starch, polyvinyl alcohol, carboxymethyl cellulose, methyl cellulose, gelatin and pullulan.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8539178A JPS5521705A (en) | 1978-07-12 | 1978-07-12 | Preparation of coated seed |
| JP85391/78 | 1978-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1114187A true CA1114187A (en) | 1981-12-15 |
Family
ID=13857451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA330,265A Expired CA1114187A (en) | 1978-07-12 | 1979-06-21 | Process for producing coated seed |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4250660A (en) |
| JP (1) | JPS5521705A (en) |
| CA (1) | CA1114187A (en) |
| DE (1) | DE2928064A1 (en) |
| FR (1) | FR2430713A1 (en) |
| GB (1) | GB2025200B (en) |
| NL (1) | NL7905071A (en) |
| SE (1) | SE446807B (en) |
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|---|---|---|---|---|
| FR2469861A1 (en) * | 1979-11-23 | 1981-05-29 | Anvar | Seeds, esp. soya, inoculated with soil microorganism - incorporated into a gel coating, e.g. of polyacrylamide |
| JPS57129604A (en) * | 1981-02-04 | 1982-08-11 | Sumitomo Chemical Co | Producing method of coated seed |
| HU185814B (en) * | 1983-01-31 | 1985-04-28 | Mezoegazdasagi Es Elelmezesueg | Preparation and method for intensfying the growing plants |
| JPS6084215A (en) * | 1983-10-14 | 1985-05-13 | Shin Etsu Chem Co Ltd | Film coating composition for solid pharmaceutical |
| DE3439932A1 (en) * | 1983-11-29 | 1985-06-13 | Akademie der Landwirtschaftswissenschaften der DDR Institut für Rübenforschung, DDR 3105 Klein Wanzleben | Seed pellet and process for its production |
| CH665549A5 (en) * | 1984-06-12 | 1988-05-31 | Sechoir La Courtine Sa | METHOD FOR PRODUCING SEED PELLETS. |
| AT385169B (en) * | 1984-11-20 | 1988-02-25 | Thaelmann Schwermaschbau Veb | Method for the treatment of plant seeds |
| SE8701099A0 (en) * | 1987-03-17 | 1988-09-18 | Neidhardt Dieter Wilhelm Martin | Såkapsel |
| US5113619A (en) * | 1989-01-30 | 1992-05-19 | Leps Walter T | Method of adhering bacteria to seed and composition therefor |
| US5230959A (en) | 1989-03-20 | 1993-07-27 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
| WO1991003149A1 (en) * | 1989-09-08 | 1991-03-21 | E.I. Du Pont De Nemours And Company | Water retentive matrix incorporating plastic for growing seeds and plants |
| FR2655234B1 (en) * | 1989-12-06 | 1992-04-03 | Seppic Sa | NOVEL DRYING POWDER, ITS USE FOR DRYING SOLID SUPPORTS, IN PARTICULAR SEED SEEDS. |
| US5308896A (en) * | 1992-08-17 | 1994-05-03 | Weyerhaeuser Company | Particle binders for high bulk fibers |
| US5998032A (en) | 1992-08-17 | 1999-12-07 | Weyerhaeuser Company | Method and compositions for enhancing blood absorbence by superabsorbent materials |
| US6340411B1 (en) | 1992-08-17 | 2002-01-22 | Weyerhaeuser Company | Fibrous product containing densifying agent |
| US5543215A (en) * | 1992-08-17 | 1996-08-06 | Weyerhaeuser Company | Polymeric binders for binding particles to fibers |
| US5547541A (en) * | 1992-08-17 | 1996-08-20 | Weyerhaeuser Company | Method for densifying fibers using a densifying agent |
| US5538783A (en) * | 1992-08-17 | 1996-07-23 | Hansen; Michael R. | Non-polymeric organic binders for binding particles to fibers |
| JP3497166B2 (en) * | 1992-08-17 | 2004-02-16 | ウェヤーハウザー・カンパニー | Particle binding to fiber |
| US6391453B1 (en) * | 1992-08-17 | 2002-05-21 | Weyernaeuser Company | Binder treated particles |
| US5641561A (en) * | 1992-08-17 | 1997-06-24 | Weyerhaeuser Company | Particle binding to fibers |
| US7144474B1 (en) | 1992-08-17 | 2006-12-05 | Weyerhaeuser Co. | Method of binding particles to binder treated fibers |
| US5589256A (en) * | 1992-08-17 | 1996-12-31 | Weyerhaeuser Company | Particle binders that enhance fiber densification |
| US5352480A (en) * | 1992-08-17 | 1994-10-04 | Weyerhaeuser Company | Method for binding particles to fibers using reactivatable binders |
| US5807364A (en) * | 1992-08-17 | 1998-09-15 | Weyerhaeuser Company | Binder treated fibrous webs and products |
| US5300192A (en) * | 1992-08-17 | 1994-04-05 | Weyerhaeuser Company | Wet laid fiber sheet manufacturing with reactivatable binders for binding particles to fibers |
| US5787640A (en) * | 1992-09-01 | 1998-08-04 | Duke; Gene L. | Coating fuzzy cottonseed |
| CA2180826A1 (en) | 1994-01-13 | 1995-07-20 | Richard J. Ii Stoner | Organic disease control system |
| FR2750564A1 (en) * | 1996-07-08 | 1998-01-09 | Durris Nicole | Flexible textile supports for seedlings, |
| WO1998018311A1 (en) * | 1996-10-31 | 1998-05-07 | Pioneer Hi-Bred International, Inc. | Seed coatings |
| JP3185133B2 (en) * | 1997-02-13 | 2001-07-09 | タキイ種苗株式会社 | Granulated coated seed and method for producing the same |
| GB2325138A (en) * | 1997-05-16 | 1998-11-18 | Aquasol Ltd | Suspensions for plant propagation material |
| US6209259B1 (en) * | 1997-07-11 | 2001-04-03 | Encap, Llc | Seeding treatments |
| FR2766060A1 (en) * | 1997-07-16 | 1999-01-22 | Yann Druet | Seed protecting coating |
| DK173999B1 (en) | 1998-06-29 | 2002-04-02 | Bentle Products Ag | Mixture of a carrier and additives for use in germinating elements containing seeds or similar growth-suitable plant parts and process for preparing the mixture |
| JP4340988B2 (en) * | 1999-06-24 | 2009-10-07 | アグリテクノ矢崎株式会社 | Method for producing gel-coated seed |
| DK176662B1 (en) * | 2000-02-03 | 2009-02-09 | Bentle Products Ag | Seed band for controlled germination process |
| US6557298B2 (en) * | 2000-09-15 | 2003-05-06 | Monsanto Technology, Llc | Treatment of seeds with coatings containing hydrogel |
| KR100399985B1 (en) * | 2001-10-08 | 2003-09-29 | 학교법인 건국대학교 | Seed soil cake and manufacturing method |
| KR100463255B1 (en) * | 2002-08-14 | 2005-01-05 | 유남진 | Rice seed mixed soil |
| US20040058605A1 (en) * | 2002-09-19 | 2004-03-25 | Hansen Michael R. | Polysaccharide treated cellulose fibers |
| KR100457856B1 (en) * | 2002-10-28 | 2004-11-18 | 김승현 | The Pellet of plants seed, the methods of pelletization and the cultivation way with the pellet and the methods |
| UA60092C2 (en) * | 2003-01-27 | 2006-07-17 | Serhii Mykolaiovych Abramov | Method of seed pelleting |
| US20050000669A1 (en) * | 2003-03-14 | 2005-01-06 | Hugh West | Saccharide treated cellulose pulp sheets |
| US20050031841A1 (en) * | 2003-08-05 | 2005-02-10 | Weyerhaeuser Company | Attachment of superabsorbent materials to fibers using oil |
| US20050133180A1 (en) * | 2003-12-19 | 2005-06-23 | Hugh West | Densification agent and oil treated cellulose fibers |
| US8683742B1 (en) * | 2004-02-13 | 2014-04-01 | Klondike Agricultural Products, LLC | Agricultural system |
| US20050178518A1 (en) * | 2004-02-13 | 2005-08-18 | Hugh West | Sodium sulfate treated pulp |
| DK1941798T3 (en) * | 2004-12-17 | 2012-08-27 | Devgen Nv | Nematicide preparations |
| US20080236037A1 (en) * | 2007-03-26 | 2008-10-02 | Rose Agri-Seed, Inc. | Planting mix compositions and methods |
| US20100093535A1 (en) * | 2007-03-26 | 2010-04-15 | Rose Agri-Seed, Inc. | Planting mix compositions and methods |
| JP6024972B2 (en) * | 2011-12-20 | 2016-11-16 | 国立研究開発法人農業・食品産業技術総合研究機構 | Breeding body covering, cultivation method, and method for producing breeding body covering |
| WO2015195687A1 (en) * | 2014-06-16 | 2015-12-23 | Aquatrols Corporation Of America | Seed composition and method to improve germination and emergence under adverse soil conditions |
| AU2016220556B2 (en) * | 2015-02-19 | 2017-09-21 | Yeditepe Universitesi | Coating formulation for seed and surface sterilization |
| FR3043882B1 (en) * | 2015-11-24 | 2017-12-15 | Rhodia Operations | PROCESS FOR TREATING SEEDS |
| CN114982421A (en) * | 2022-05-25 | 2022-09-02 | 宁夏大学 | Preparation method of standardized white radish pills |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2656649A (en) * | 1946-10-02 | 1953-10-27 | Marius H Ostier | Seed pellet |
| US2579735A (en) * | 1949-09-16 | 1951-12-25 | Filtrol Corp | Coated seed |
| US2950891A (en) * | 1958-02-17 | 1960-08-30 | Hage Albert | Bicycle fender bracket |
| US2967376A (en) * | 1958-02-27 | 1961-01-10 | Soilserv Inc | Method for treating seeds, and product of said method |
| US3703404A (en) * | 1970-10-30 | 1972-11-21 | Upjohn Co | Coated seeds and process for coating seeds |
| US3950891A (en) * | 1975-01-03 | 1976-04-20 | Florida Celery Exchange | Seed coating composition and coated seed |
| JPS5213812A (en) * | 1975-07-11 | 1977-02-02 | Hayashibara Biochem Lab | Production of coated seed |
-
1978
- 1978-07-12 JP JP8539178A patent/JPS5521705A/en active Granted
-
1979
- 1979-06-20 US US06/050,334 patent/US4250660A/en not_active Expired - Lifetime
- 1979-06-21 GB GB7921695A patent/GB2025200B/en not_active Expired
- 1979-06-21 CA CA330,265A patent/CA1114187A/en not_active Expired
- 1979-06-29 NL NL7905071A patent/NL7905071A/en not_active Application Discontinuation
- 1979-07-09 FR FR7917712A patent/FR2430713A1/en active Granted
- 1979-07-11 SE SE7906049A patent/SE446807B/en not_active IP Right Cessation
- 1979-07-11 DE DE19792928064 patent/DE2928064A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| SE446807B (en) | 1986-10-13 |
| JPS5521705A (en) | 1980-02-16 |
| NL7905071A (en) | 1980-01-15 |
| JPS5653323B2 (en) | 1981-12-18 |
| SE7906049L (en) | 1980-01-13 |
| GB2025200B (en) | 1982-10-27 |
| FR2430713B1 (en) | 1983-05-20 |
| FR2430713A1 (en) | 1980-02-08 |
| US4250660A (en) | 1981-02-17 |
| GB2025200A (en) | 1980-01-23 |
| DE2928064A1 (en) | 1980-01-24 |
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Legal Events
| Date | Code | Title | Description |
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| MKEX | Expiry |