WO1999029639A2 - Combination for foliar supplementation of plants with selenium salts and urea - Google Patents

Combination for foliar supplementation of plants with selenium salts and urea Download PDF

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Publication number
WO1999029639A2
WO1999029639A2 PCT/YU1998/000022 YU9800022W WO9929639A2 WO 1999029639 A2 WO1999029639 A2 WO 1999029639A2 YU 9800022 W YU9800022 W YU 9800022W WO 9929639 A2 WO9929639 A2 WO 9929639A2
Authority
WO
WIPO (PCT)
Prior art keywords
plants
urea
selenium
supplementation
foliar
Prior art date
Application number
PCT/YU1998/000022
Other languages
French (fr)
Other versions
WO1999029639A3 (en
Inventor
Ivana DJUJIĆ
Milica Milovac
Original Assignee
Djujic Ivana
Milica Milovac
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 Djujic Ivana, Milica Milovac filed Critical Djujic Ivana
Priority to AU15417/99A priority Critical patent/AU1541799A/en
Publication of WO1999029639A2 publication Critical patent/WO1999029639A2/en
Publication of WO1999029639A3 publication Critical patent/WO1999029639A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • C05G5/23—Solutions

Definitions

  • This invention is related to the composition of the combination for foliar supplementation of plants with selenium and nitrogen.
  • composition of the combination for foliar supplementation makes it possible to spray overground parts of the plant with soluble selenium salts mixed with urea and in that way the necessary simultaneous intake of selenium and nitrogen.
  • selenium deficient areas two problems, supplementation of plants with nitrogen and supplementation of plants with selenium, are solved in one operation whereby the efficiency of supplementation with urea and selenium salts respectively is not reduced.
  • Nutrients can be taken in by way of root or the overground part of plant. Intake through the overground part of plant by spraying the given combination of nutrients is usually more efficient than supplementation through root because the foliar application of nutrients does not depend on the content of soil, the plants more quickly respond to that way of nutrient intake, and a very small quantity of nutrient is usually needed.
  • composition of soil are negligible because of a small quantity of selenium in fertilizers.
  • the other patents is related to foliar application of one or several polyvalent metal ions necessary to the plant (Tsivon Y., 97322830). They are Fe + , Fe 2+ , Mn 2+ , Cu 2+ , Zn 2+ , Ca 2+ , and Mg 2+ . None of the patents includes foliar supplementation of plants with selenium salts or the simultaneous application of selenium salts and urea.
  • the combination for foliar supplementation of plants with selenium and nitrogen in which the soluble salts of selenous acid (selenites) serve as the source of selenium, and urea (containing 46% of the available nitrogen) serves as the source of nitrogen , enables the simultaneous intake of selenium and nitrogen when overground parts of plants are sprayed with it.
  • soluble salts of selenous acid selenites
  • urea containing 46% of the available nitrogen
  • the combination for foliar application of selenium salts and urea (carbamide) to plants is based on the discovery that the soluble salts of selenous acid (H 2 SeO 3 ), like sodium selenite (Na 2 SeO 3 ), can be combined with carbamide [CO(NH 2 ) 2 ] in a defined relationship which doe not add to any decrease of their efficiency.
  • H 2 SeO 3 soluble salts of selenous acid
  • Na 2 SeO 3 sodium selenite
  • the given combination can be used in the form of the water solution or biodegradable granules releasing active compounds of the combination with a delay.
  • the quantity of selenium used in the composition for foliar treatment of plants ranged from6-36 g/ha and the urea from 20-40 kg. Examples of the combination used for foliar supplementation of plants with selenium and nitrogen to agricultural crops are given in Table 1.
  • Crop Treatment Se N Crop analysis glha kg/ha Se, ⁇ g/kg Proteins, %

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The combination for foliar supplementation of plants with selenium salts and urea is given. The relationship between the applied selenium salts and urea is defined in such way that efficiency of their combined application to plants is equal or greater than it would be if they were singly applied.

Description

COMBINATION FOR FOLIAR SUPPLEMENTATION OF PLANTS WITH SELENIUM SALTS AND UREA
Field of technology to which the invention is applied
This invention is related to the composition of the combination for foliar supplementation of plants with selenium and nitrogen.
According to the international classification of patents (ICP) the sign is C 05 G 03/00.
Problem which can be solved by patent protection
Composition of the combination for foliar supplementation makes it possible to spray overground parts of the plant with soluble selenium salts mixed with urea and in that way the necessary simultaneous intake of selenium and nitrogen. Thus in selenium deficient areas two problems, supplementation of plants with nitrogen and supplementation of plants with selenium, are solved in one operation whereby the efficiency of supplementation with urea and selenium salts respectively is not reduced.
The present invention status
The most favorable way to improve selenium and other nutrients intake by a grater population group in deficient region is to supplement the crops.
Nutrients, including micro-elements, can be taken in by way of root or the overground part of plant. Intake through the overground part of plant by spraying the given combination of nutrients is usually more efficient than supplementation through root because the foliar application of nutrients does not depend on the content of soil, the plants more quickly respond to that way of nutrient intake, and a very small quantity of nutrient is usually needed.
Two countries using selenium in agriculture, Finland and New Zealand, developed 5 various technologies for supplementation of plants with selenium through soil. Both technologies use sodium selenate (Na2SeO4) as the source of selenium. In Finland granules of fertilizers are sprayed with water solution of sodium selenate and in New Zealand granules with 1% of selenium in form of selenate are mixed before use with granules of fertilizers. A commercial product made in New Zealand "Selcote" is composed of Na2SeO4 crystals pressed l o into a tablet suitable for safe handing (patent No. 200421 , New Zealand).
On the basis of experience gained in the 1985-1990 period Finland reduced the application of selenium to one half of the 1990 quantity. It is expected that 30 years of uninterrupted use of selenium it would be enough to treat the soil used for pastures in New
Zealand with Se every second year. In both countries they mention that changes in the
15 composition of soil are negligible because of a small quantity of selenium in fertilizers.
In to days patents procedures for foliar treatment with urea and its stabilized forms (Urea/CaCl2 and Urea/MgCl2) are proposed. They represent alternatives to its application through soil when the quality of grain and yield are desired (Higgons D.J., Newall S. and Stoller J.H., WO patent No. 9011262). Advantages of foliar application over advantages of 20 application through soil are greater and the risk that supplements could be washed away is smaller because of direct absorption through leaves. Urea used for foliar application dissolves in water and splashes about. The maximum quantity of urea which could be dissolved in water is limited (GB 1561136) because of plant leaves urea is disassembled into volatile ammonia which can damage or destroy the plant, or be lost owing to evaporation.
25 The other patents is related to foliar application of one or several polyvalent metal ions necessary to the plant (Tsivon Y., 97322830). They are Fe +, Fe2+, Mn2+, Cu2+, Zn2+, Ca2+, and Mg2+. None of the patents includes foliar supplementation of plants with selenium salts or the simultaneous application of selenium salts and urea.
Essential aspects of invention
The combination for foliar supplementation of plants with selenium and nitrogen, in which the soluble salts of selenous acid (selenites) serve as the source of selenium, and urea (containing 46% of the available nitrogen) serves as the source of nitrogen , enables the simultaneous intake of selenium and nitrogen when overground parts of plants are sprayed with it.
Thus in selenium deficient areas two problems - supplementation of plants with nitrogen and with selenium are solved by means of one foliar application. For that purpose urea and selenites are interrelated in such a way that availability of urea is not decreased and that availability of selenium from selenites is in some cases even greater than if selenium salts are used alone.
Detailed description of the invention
The combination for foliar application of selenium salts and urea (carbamide) to plants is based on the discovery that the soluble salts of selenous acid (H2SeO3), like sodium selenite (Na2SeO3), can be combined with carbamide [CO(NH2)2] in a defined relationship which doe not add to any decrease of their efficiency.
The given combination can be used in the form of the water solution or biodegradable granules releasing active compounds of the combination with a delay.
The quantity of selenium used in the composition for foliar treatment of plants ranged from6-36 g/ha and the urea from 20-40 kg. Examples of the combination used for foliar supplementation of plants with selenium and nitrogen to agricultural crops are given in Table 1.
Table 1.
Crop Treatment Se N, Crop analysis glha kg/ha Se, μg/kg Proteins, %
Wheat Urea - 11.5 20 - 30 11.25 - 12.20
N-^SeOj 6 - 40 - 62 -
Na2Se03 24 - 35 - 74 -
Na2Se03/Urea 6 11.5 46 - 71 11.45 - 12.35
N-tjSeOj/Urea 24 11.5 82 - 160 11.60 - 12.70
Maize Urea - 12.9 9 - 14 8.6 - 9.5
Na2Se03 6 - 19 - 40 -
Na,Se03 12 - 30 -46 -
N^SeOj/Urea 6 12.9 24 - 31 9. 0 - 97
NajSeOj Urea 12 12.9 68 - 77 8.8 - 9.8
Potatoes Urea - 13.8 4 - 9 -
Na^SeOj 6 - 12 - 14 -
NajSeOj 12 - 17 - 19 -
N^Se03/Urea 6 13.8 12 - 16 -
Na-Se03/Urea 12 13.8 19 - 21 -
Results of the analysis of the crops treated with the composition for foliar supplementation of plants with selenium and nitrogen confirm that it does not decrease the efficiency of supplementation with selenium. Furthermore, the given results show that in some cases supplementation with selenium and nitrogen contributes to better usage of the applied selenium.

Claims

Patent claims
1. Formulation for foliar application to plants which represents the combination of urea [CO(NH2)2] and selenium salts.
2. Formulation according to Request 1 if selenium salts soluble in water are used.
3. Formulation according to Request 1 if sodium selenite is used for the combination.
4. Preparations for supplementation of plants which contain the formulation according to Request 1 and usual nutritively acceptable carriers.
5. Preparations for supplementation of plants according to Request 4 which are applied to plants in the form of solution.
6. Application of the formulation in order to obtain preparations for foliar supplementation of plants.
7. Application of the preparation for foliar supplementation of the overground parts of plants. The preparation contains the combination of urea and selenium salts soluble in water.
8. Plants with the optimum quantity of selenium and nitrogen obtained by foliar treatment with the preparation which contains the combination of urea and Se salts.
9. The use of plants and plant products with the required content of selenium and nitrogen for production of flour, pasta, bread, dehydrated potatoes etc.
PCT/YU1998/000022 1997-12-11 1998-12-10 Combination for foliar supplementation of plants with selenium salts and urea WO1999029639A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15417/99A AU1541799A (en) 1997-12-11 1998-12-10 Combination for foliar supplementation of plants with selenium salts and urea

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
YUP-483/97A RS49797B (en) 1997-12-11 1997-12-11 Combination for foliar feeding of plants by selenium salts and urea
YUP-483/97 1997-12-11

Publications (2)

Publication Number Publication Date
WO1999029639A2 true WO1999029639A2 (en) 1999-06-17
WO1999029639A3 WO1999029639A3 (en) 1999-09-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (3)

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AU (1) AU1541799A (en)
RS (1) RS49797B (en)
WO (1) WO1999029639A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102329175A (en) * 2011-08-08 2012-01-25 江苏浩波农业科技开发有限公司 Long-acting inorganic compound selenium fertilizer capable of degrading residual pesticide and preparation method thereof
CN104838833A (en) * 2015-03-13 2015-08-19 高煜昕 Planting method of selenium-rich leafy vegetables
CN104838834A (en) * 2015-03-13 2015-08-19 高煜昕 Planting method of selenium-rich melon and fruit vegetables

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1330611C (en) * 2004-07-06 2007-08-08 湖南大学 Nano selenium nutrition conditioning agent for fruit and vegetable and its preparing process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1561136A (en) * 1976-08-21 1980-02-13 Univ Glasgow Liquid nutrient composition for use in plant fertilizationand in animal feeding
GB2195993A (en) * 1986-09-13 1988-04-20 Cutonic Limited Trace element composition
EP0784040A1 (en) * 1996-01-15 1997-07-16 Stéphane Couturier Fertiliser composition for improving nitrogen efficiency

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1048478C (en) * 1994-10-17 2000-01-19 吴敦虎 Selenium liquid compound fertilizer and its making method
CN1082498C (en) * 1995-10-27 2002-04-10 吴敦虎 Quick dissolving zinc selenium composite fertilizer and making method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1561136A (en) * 1976-08-21 1980-02-13 Univ Glasgow Liquid nutrient composition for use in plant fertilizationand in animal feeding
GB2195993A (en) * 1986-09-13 1988-04-20 Cutonic Limited Trace element composition
EP0784040A1 (en) * 1996-01-15 1997-07-16 Stéphane Couturier Fertiliser composition for improving nitrogen efficiency

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 112, no. 11, 12 March 1990 (1990-03-12) Columbus, Ohio, US; abstract no. 97528, GUPTA, UMESH C. ET AL: "Effect of selenate vs. selenite forms of selenium in increasing the selenium concentration in forages and cereals" XP002105166 & CAN. J. SOIL SCI. (1989), 69(4), 885-8 CODEN: CJSSAR;ISSN: 0008-4271,1989, *
CHEMICAL ABSTRACTS, vol. 114, no. 13, 1 April 1991 (1991-04-01) Columbus, Ohio, US; abstract no. 116825, HEDIN, PAUL A. ET AL: "Effects of kinetin formulations on allelochemicals and agronomic traits o cotton" XP002105169 & J. AGRIC. FOOD CHEM. (1991), 39(3), 549-53 CODEN: JAFCAU;ISSN: 0021-8561,1991, *
CHEMICAL ABSTRACTS, vol. 124, no. 13, 25 March 1996 (1996-03-25) Columbus, Ohio, US; abstract no. 174739, WU, DUNHU ET AL: "Selenium -rich liquid fertilizer and its production" XP002105168 & CN 1 108 635 A (PEOP. REP. CHINA) *
CHEMICAL ABSTRACTS, vol. 128, no. 22, 1 June 1998 (1998-06-01) Columbus, Ohio, US; abstract no. 270097, WU, DUNHU ET AL: "Quick-dissolving zinc- selenium composite fertilizer" XP002105167 & CN 1 139 655 A (WU, DUNHU, PEOP. REP. CHINA) 8 January 1997 (1997-01-08) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102329175A (en) * 2011-08-08 2012-01-25 江苏浩波农业科技开发有限公司 Long-acting inorganic compound selenium fertilizer capable of degrading residual pesticide and preparation method thereof
CN102329175B (en) * 2011-08-08 2012-12-26 江苏浩波农业科技开发有限公司 Long-acting inorganic compound selenium fertilizer capable of degrading residual pesticide and preparation method thereof
CN104838833A (en) * 2015-03-13 2015-08-19 高煜昕 Planting method of selenium-rich leafy vegetables
CN104838834A (en) * 2015-03-13 2015-08-19 高煜昕 Planting method of selenium-rich melon and fruit vegetables

Also Published As

Publication number Publication date
AU1541799A (en) 1999-06-28
WO1999029639A3 (en) 1999-09-02
YU48397A (en) 2003-01-31
RS49797B (en) 2008-06-05

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