EP0159344A4 - Samenbeschichtung. - Google Patents

Samenbeschichtung.

Info

Publication number
EP0159344A4
EP0159344A4 EP19840903798 EP84903798A EP0159344A4 EP 0159344 A4 EP0159344 A4 EP 0159344A4 EP 19840903798 EP19840903798 EP 19840903798 EP 84903798 A EP84903798 A EP 84903798A EP 0159344 A4 EP0159344 A4 EP 0159344A4
Authority
EP
European Patent Office
Prior art keywords
coating composition
seeds
micron
seed
polyacrylate
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.)
Pending
Application number
EP19840903798
Other languages
English (en)
French (fr)
Other versions
EP0159344A1 (de
Inventor
Peter Rolf Evans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGRISORB PTY Ltd
Original Assignee
AGRISORB Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AGRISORB Pty Ltd filed Critical AGRISORB Pty Ltd
Publication of EP0159344A1 publication Critical patent/EP0159344A1/de
Publication of EP0159344A4 publication Critical patent/EP0159344A4/de
Pending legal-status Critical Current

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

Definitions

  • the invention concerns a water absorbent coating composition for seeds which, by its water absorbency. facilitates the germination of the seeds upon sowing.
  • the invention therefore concerns a hygroscopic coating composition for seeds comprising finely divided polyacrylamide and finely divided polyacrylate in intimate admixture.
  • this hygroscopic composition also includes finely divided graphite as a sticker.
  • the seeds which can be coated with this composition are any plant seeds which require moisture for germination.
  • suitable seeds are wheat, oats, maize, sorghum, oil seeds, beans, cotton, pasture grasses, lucerne and vegetables.
  • the coating composition is particularly useful with summer crops.
  • the composition is hygroscopic and is able to absorb water.
  • the composition should have a high capacity for absorbing moisture.
  • the composition should be kept away from contact with moisture or water until it has been coated on the seed, and preferably until the coated seed has been sown in the ground. However, it is possible to moisten the coating mixture before or after it is coated on the seed, in order to provide additional moisture to the seed at the time it is sown.
  • the coating composition includes a sticker such as finely divided natural graphite. If graphite is not used the seeds may be coated with a sticker such as vegetable oil, gum arable or some similar sticker.
  • the coating composition of the invention concerns a combination of a finely divided polyacrylate and a finely divided polyacrylamide. The mixture of these two provides a surprisingly effective hygroscopic coating composition. The reasons for this unexpected efficacy are not precisely understood, but it is believed that the mixture attracts comic components to the seed required for germination, as well as moisture.
  • the various components of the coating composition are finely divided. This is Important to allow the coating composition to adhere to the seed, and to allow efficient moisture transfer to the surface of the seed.
  • the polyacrylamide has a particle size less than 1000 micron and the polyacrylate has a particle size less than 1000 micron.
  • the graphite, if used has a particle size less than about 200 micron.
  • the polyacrylamide is present in the composition in two different particle size ranges, one of said ranges being greater than 200 micron and the other less than 200 micron.
  • the polyacrylate has a particle size between 10 and 200 micron. Most preferably, the polyacrylate has a grain size of about 60 micron. More preferably, the polyacrylamide is present in one particle size range of 200 to 1000 micron, and most preferably about 300 micron, and in another size range from
  • the graphite has a particle size between about 10 to 20 micron.
  • the coating composition can also include a fertilizer, fungicide and/or insecticide for example.
  • the fungicide or insecticide so used can be any of the commonly used compounds known to be effective for application to seeds when sowing crops.
  • the fertilizer can be any suitable fertilizer, and preferably it is a slow release formulation.
  • the term "fertilize" includes nitrogen fixing bacteria, which can be added as an inoculate for promoting growth of the seed.
  • the fungicide, pesticide, or fertilizer additive may be Incorporated in the coating composition, or may only be added when the coating is applied to the seed. If incorporated in the coating composition at manufacture, the additive should be in a finely ground state.
  • the preferred starch grafted polyacrylate component of the invention is also a particularly good carrier for the nitrogen fixing bacteria.
  • the invention also concerns a method of facilitating the germination of seeds, which comprises coating the seeds with the hygroscopic coating composition described above, sowing the coated seeds, and allowing the seeds to germinate.
  • the coating composition can be applied to the seeds at the time they are sown. Water can be injected into the furrow otherwise added with the seed, in conjunction with the sowing process.
  • the invention also includes a packaged seed coating composition which comprises the dry hygroscopic coating composition as described above, which is enclosed within a moisture and waterproof package. It is preferred to keep the hygroscopic composition dry until it is used to coat the seed. This facilitates the coating process and reduces weight for transportation and storage of the composition before use.
  • the coating may otherwise be used as an aqueous slurry, in conjunction with direct drill seeding machinery. In this case, soil moisture levels will not be such a critical factor for determining sowing times, and farmers can sow their crops irrespective of soil moisture levels. .
  • the coating composition maybe mixed with water at a ratio of about 300-400:1 as water : coating composition. The slurry thus obtained is pumped, gravity fed or injected into the soil or in the bottom of the furrow. Seeds can then be sown on top.
  • the polyacrylate of the invention is preferably an internally cross-linked starch-grafted polyacrylate, which is made from starch and acrylic acid.
  • a polymer will generally be super absorbent and able, for example, to absorb up to 1000 times its weight of water.
  • This polymer should also be substantially water insoluble.
  • a suitable such polyacrylate is one produced by Sanyo Chemical Industries of Japan and is known as "SANWET IM-1000" .
  • This substance is a white powder able to absorb 1000 times its weight in water. This has a particle distribution of about 1% having greater than 20 mesh particles, about 89* having 20 to 145 mesh, and about 10 wt% having a particle size of under 145 mesh particles.
  • this polymer Before use, this polymer is ground to a suitable particle size in accordance with the preferred enbodiments of the invention; for example, to about 60 micron.
  • the polyacrylamide may be an amonic polymer or a cationic polymer, for example.
  • the polyacrylamide can be a cross-linked acrylamide copoly er able to absorb many times its weight of water.
  • One suitable such polyacrylamide is manufactured by Allied Colloids of Buffalo, England, and is sold under the trade name "ALCOSORB AB1". This is a water absorbable. water insoluble polymer able to absorb more than 70 times its weight of water. It is obtained as a white granular powder having a moisture content generally from 5 to 7* by weight.
  • the coating composition is applied to the seed in sufficient quantity to coat the seed. Typically, about 1 kg of coating composition will be used per about 100 kg to 400 kg of seed. For fine seed, about 100 kg of seed is coated with 1 kg of coating composition. However for wheat seed it is preferred that 400 kg of seed will be coated per
  • the above seed coating is used in conjunction with normal agricultural practices. It is preferably dusted dry onto the seeds prior to sowing. With small quantities of seed, the seed coating composition and the seed can be placed in a sealed container and shaken or tumbled for about 1 minute to coat the seeds. If greater quantities of seeds are used, the seeds can be placed in a concrete mixer or tumbler in about 100kg lots, together with sufficient seed coating composition. The seeds are coated after operating the machine for about a minute. When coating a tonne or more of seed, it is preferred to use commercially available mixing machines for coating the seed.
  • the seed coating of the invention can substantially improve germination rates; particularly on dry land or irrigated crops. It has been found that crop emergence is faster, there is an increased rate of germination, and also that the root development within the first four weeks after germination is substantially deeper and stronger. These advantages enable a higher crop production and earlier maturity of the crops and there is the further advantage that the plants, due to their deeper root systems, are less likely to suffer the effects of water stress while young.
  • a further advantage is that it appears that the preferred graphite component of the mixture has a mild fungicidal and insecticidal action, protecting the seed. The graphite acts as a sticker to adhere the composition to the seed, and furthermore, it operates as a lubricant to assist in the sowing process of the coated seeds.
  • the coating composition of the invention was tested in a cotton crop near Wee Waa in New South Wales, Australia. Cotton seeds were coated in a seed box prior to sowing. About 1kg of coating composition was used for each 200 kg of cotton seed. The crop was sown and it was found that the coated crop appeared from the ground after four days, while normally germination can take up to a fortnight. The actual improvement in germination time is of course dependent on the climatic and soil conditions, but generally, the coated seed crops appear faster than uncoated crops. Results to date also show an improved crop yield from coated seeds as compared with untreated seed.
  • the coating composition is generally inexpensive to apply the crop and has been found to provide substantial advantages to crop growth, as well as crop yields.
  • the coating composition of the invention is applicable t o a g ricu lt ure, horticulture and the growing of plants from seeds .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
EP19840903798 1983-10-13 1984-10-15 Samenbeschichtung. Pending EP0159344A4 (de)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
AU1831/83 1983-10-13
AUPG183183 1983-10-13
AUPG570484 1984-06-27
AU5704/84 1984-06-27
AUPG570384 1984-06-27
AUPG570284 1984-06-27
AU5705/84 1984-06-27
AU5702/84 1984-06-27
AU5703/84 1984-06-27
AUPG570584 1984-06-27

Publications (2)

Publication Number Publication Date
EP0159344A1 EP0159344A1 (de) 1985-10-30
EP0159344A4 true EP0159344A4 (de) 1986-05-16

Family

ID=27507353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840903798 Pending EP0159344A4 (de) 1983-10-13 1984-10-15 Samenbeschichtung.

Country Status (2)

Country Link
EP (1) EP0159344A4 (de)
WO (1) WO1985001736A1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4983389A (en) * 1987-04-01 1991-01-08 Lee County Mosquito Control District Herbicidal delivery compositions and methods for controlling plant populations in aquatic and wetland environments
US4985251A (en) * 1987-04-01 1991-01-15 Lee County Mosquito Control District Flowable insecticidal delivery compositions and methods for controlling insect populations in an aquatic environment
US4818534A (en) * 1987-04-01 1989-04-04 Lee County Mosquito Control District Insecticidal delivery compositions and methods for controlling a population of insects in an aquatic environment
US4983390A (en) * 1987-04-01 1991-01-08 Lee County Mosquito Control District Terrestrial delivery compositions and methods for controlling insect and habitat-associated pest populations in terrestrial environments
PL160605B1 (pl) * 1988-03-21 1993-04-30 Inst Warzywnictwa Sposób wytwarzania srodków do inkrustowania nasion oraz sposób inkrustowania nasion PL
GB8906588D0 (en) * 1989-03-22 1989-05-04 Dow Chemical Co Seed treatment
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
CA2000620C (en) * 1989-10-13 1999-04-27 Kenneth A. Turpin A seed-containing water imbibing tablet or capsule and methods utilising same
AU5047490A (en) * 1990-02-01 1991-08-21 Salah Barbary Products for the cultivation of plants on all types of soil, and processes for their manufacture
WO1992019095A1 (en) * 1991-05-09 1992-11-12 E.I. Du Pont De Nemours And Company Plant growing matrix
CN1067209C (zh) * 1996-11-08 2001-06-20 北京市农业局 麦田套种玉米的栽培方法
US6209259B1 (en) 1997-07-11 2001-04-03 Encap, Llc Seeding treatments
DE19936223A1 (de) 1999-08-05 2001-02-22 Stockhausen Chem Fab Gmbh Wirkstoffhaltige Komposition sowie deren Herstellung und Verwendung
US6557298B2 (en) 2000-09-15 2003-05-06 Monsanto Technology, Llc Treatment of seeds with coatings containing hydrogel
AU2004261098A1 (en) * 2003-07-31 2005-02-10 Showa Denko K.K. Seed coating composition, coated seed, and coating method
GB0511359D0 (en) 2005-06-06 2005-07-13 Ciba Sc Holding Ag Coated plant seeds and a method for coating seeds
US8341881B2 (en) * 2007-12-11 2013-01-01 Aquasmart Enterprises, Llc Hydration maintenance apparatus and method
US8931209B2 (en) * 2007-12-11 2015-01-13 Aquasmart Enterprises, Llc Seed-delivered, soil-amendment method and composition
US9856415B1 (en) 2007-12-11 2018-01-02 Superior Silica Sands, LLC Hydraulic fracture composition and method
US9057014B2 (en) 2007-12-11 2015-06-16 Aquasmart Enterprises, Llc Hydraulic fracture composition and method
US10920494B2 (en) 2007-12-11 2021-02-16 Aquasmart Enterprises, Llc Hydraulic fracture composition and method
US20170137703A1 (en) 2007-12-11 2017-05-18 Superior Silica Sands, LLC Hydraulic fracture composition and method
US8196346B2 (en) * 2008-09-24 2012-06-12 Tommy K. Thrash Delayed-activation, hydration maintenance, apparatus and method
CN102498898B (zh) * 2011-11-11 2013-03-27 界首市昊坤农作物种植专业合作社 远缘嫁接诱变小麦高产栽培方法
US9353019B2 (en) 2013-01-18 2016-05-31 Oms Investments, Inc. Coated seeds
US9527781B2 (en) 2013-12-19 2016-12-27 Aquasmart Enterprises, Llc Persistent, targeted, optimized, soil amendment composition and method
US10266450B2 (en) 2014-07-01 2019-04-23 Aquasmart Enterprises, Llc Coated-fine-aggregate, concrete composition and method
US9359253B2 (en) 2014-07-01 2016-06-07 Aquasmart Enterprises, Llc Coated-fine-aggregate, concrete composition and method
UA128342C2 (uk) * 2019-08-01 2024-06-12 П Е В А С С.Р.О. Суспензія на основі суперабсорбенту, придатна для гідростимулюючого покриття насіння, та спосіб покриття насіння такою суспензією
WO2025188253A1 (en) 2024-03-07 2025-09-12 Pewas S.R.O. A superabsorbent-based composition for hydrostimulatory coating of seeds and a method of coating seeds with the composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000001A1 (en) * 1983-06-16 1985-01-03 Kirkland Edmund R A product and method of making a seed coating for increased yield

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647507A (en) * 1970-01-07 1972-03-07 Johnson & Johnson Resin composition containing a polyacrylic acid-polyacrylamide copolymer and method of using the same to control resin composition
US3707807A (en) * 1970-12-02 1973-01-02 Chevron Res Seed coating composition
SU378157A1 (de) * 1971-02-09 1973-04-18
SU537639A1 (ru) * 1975-05-27 1976-12-05 Молдавский Научно-Исследовательский Институт Полевых Культур Научно-Производственного Объединения "Селекция" Пленкообразующее вещество дл покрыти сем н
AU531329B2 (en) * 1979-04-02 1983-08-18 Interox Societe Anonyme Coating seeds

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000001A1 (en) * 1983-06-16 1985-01-03 Kirkland Edmund R A product and method of making a seed coating for increased yield

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CENTRAL PATENTS INDEX, BASIC ABSTRACTS JOURNAL, 7th December 1983, Section C, Week 8341, abstract 786645, Derwent Publications, London, GB; & JP - A - 58 149 604 (SUMITOMO) 06-09-1983 *
See also references of WO8501736A1 *

Also Published As

Publication number Publication date
WO1985001736A1 (en) 1985-04-25
EP0159344A1 (de) 1985-10-30

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

17P Request for examination filed

Effective date: 19851018

A4 Supplementary search report drawn up and despatched

Effective date: 19860516

17Q First examination report despatched

Effective date: 19870529

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

RIN1 Information on inventor provided before grant (corrected)

Inventor name: EVANS, PETER, ROLF