Search

EP-4740733-A1 - COMPOSITIONS OF ADJUVANTS AND COSOLVENTS FOR IMPROVING PENETRATION OF HERBICIDES AND/OR FERTILISERS THROUGH SURFACES OF ABOVEGROUND PARTS OF PLANT ORGANS.

EP4740733A1EP 4740733 A1EP4740733 A1EP 4740733A1EP-4740733-A1

Abstract

The object of the invention is a composition of adjuvants and cosolvents for improving penetration of artificial fertilisers and/or herbicides through surfaces of aboveground parts of plant organs, characterized in that it is an aqueous solution of a mixture of one to three adjuvants with a cosolvent and an artificial fertilizer and/or herbicide. The composition is used in the cultivation of herbaceous plants of the Poaceae family: maize ( Zea mays ) or barley ( Hordeum vulgare ) and/or in the cultivation of ornamental plants of the cypress family: northern white-cedar ( Thuja occidentalis ) . The composition is used for the control of weeds, preferably monocotyledonous and/or from Poaceae family, preferably selected from the group hairy crabgrass, couch grass, cockspur grass, bushgrass and/or dicotyledonous and/or of amaranth family, preferably white goosefoot and/or Asteraceae family, preferably selected from the group comprising sea mayweed, European goldenrod and/or of nightshade family, preferably black nightshade.

Inventors

  • KAPKOWSKI, MACIEJ
  • Ludynia, Michal
  • Sierka, Edyta
  • Szwajczak, Ewa
  • MARZEC, MAREK

Assignees

  • Uniwersystet Slaski w Katowicach

Dates

Publication Date
20260513
Application Date
20241112

Claims (12)

  1. A composition of adjuvants and cosolvents for improving penetration of artificial fertilisers and/or herbicides through surfaces of aboveground parts of plant organs, characterised in that it comprises an aqueous solution of a mixture of one to three adjuvants with a cosolvent and an artificial fertiliser and/or herbicide, wherein: - the adjuvant is a low-molecular-weight cyclic ketal with a 1,3-dioxolane leading structure of general formula 1, wherein individual substituents R 1 , R 2 , R 3 , R 4 denote independently a hydrogen atom (-H) or a hydroxymethyl group (-CH 2 OH) or an alkyl group (C 1 -C 13 ), - the artificial fertiliser is a NPK compound fertiliser composed of: (N-NO 3 - 2.5%, N-NH 4 - 2.5%, N-NH 2 - 13.0%) - (N) - 18%; (MgO) - 3.5%; (S) - 2.7%; (B) - 0.2%; (MgO) - 3.5%; (Cu) - 1.5%; (Fe) - 0.5%; (Mn) - 3.0%; (Mo) - 0.01%; (Zn) - 0.5% enriched with MgSO 4 as: (MgO) - 16%; (SO 3 ) - 32.5%; or a fertiliser with metal chelates composed of: (N-NO 3 - 4.9%, N-NO 4 - 3.3%, N - 9.8%) - (N) - 18%; (P 2 O 5 ) - 18%; (K 2 O) - 18%; (MgO) - 3%; (SO 3 ) - 5%; (B) - 0.025%; (Fe) EDTA/DTPA - 0.7%; (Mn) EDTA - 0.04% (Zn) EDTA - 0.025%; (Cu) - 0.01%; (Mo) - 0.004%; or: (4.4% N-NO 3 ; 8.6% N-NH 4 ) - (N) - 13%; (P 2 O 5 ) - 40%; (K 2 O) - 13%; (Fe) EDTA/DTPA - 0.07%; (Mn) EDTA - 0.04%; (Zn) EDTA - 0.025%; (Cu) EDTA - 0.01%; (B) - 0.025%; (Mo) - 0.004%; or: N-NO 3 - 5%, N-NH 4 - 3.5%, N-NH 2 - 9.5%) - (N) - 18%; (P 2 O 5 ) - 18%; (K 2 O) - 18%; (MgO) - 2%; (SO 3 ) - 6%; (B) - 0.02%; (Cu) EDTA - 0.05%; (Fe) EDTA - 0.05%; (Mn) EDTA - 0.01%; (Mo) - 0.001%; (Zn) EDTA - 0.03%; or: (101.1 g/L KNO 3 ) - 6.0 mL; (236.16 g/L Ca(NO 3 ) 2 •4H 2 O) - 4.0 mL; (115.08 g/L NH 4 H 2 PO 4 ) - 2.0 mL; (246.49 g/L MgSO 4 •7H 2 O) - 1.0 mL; (1.864 g/L KCl) - 2.0 mL; (0.773 g/L H 3 BO 3 ) - 2.0 mL; (0.169 g/L MnSO 4 •H 2 O) - 2.0 mL; (0.288 g/L ZnSO 4 •7H 2 O) - 2.0 mL; (0.062 g/L CuSO 4 •5H 2 O) - 2.0 mL; (0.04 g/L H 2 MoO 4 •H 2 O) - 2.0 mL; (30.0 g/L NaFeDTPA) - 1.0 mL; - herbicide is: glyphosate (2-(phosphonomethylamino)acetic acid) or terbuthylazine (2- N -tert-butyl-6-chloro-4- N -ethyl-1,3,5-triazine-2,4-diamine) and/or metolachlor (2-chloro- N -(2-ethyl-6-methylphenyl)- N -[(1 S )-2-methoxy-1-methylethyl]acetamide) and/or mesotrione (2-(4-(methylolsulfonyl)-2-nitrobenzoyl)cyclohexane-1,3-dione) - concentration of the adjuvant content ranges from 0.75 to 4.0 %vol. relative to the total volume of the composition, preferably up to 2.0 %vol, - concentration of the cosolvent content ranges from 0.25 to 4.0 % vol. relative to the total volume of the composition, preferably up to 2.0 % vol, - concentration of the glyphosate content is up to 400 mg/L in relation to the total volume of the composition, preferably between 200 and 400 mg/L, - concentration of the terbuthylazine content is between 92.4 and 250 g/L in relation to the total volume of the composition, preferably between 100 and 250 g/L, - concentration of the metolachlor content is up to 154 g/L in relation to the total volume of the composition, preferably between 100 and 154 g/L, - concentration of the mesotrione content is between 18.5 and 50 g/L in relation to the total volume of the composition, preferably between 20 and 50 g/L, - concentration of the NPK fertiliser content, relative to the total volume of the composition, is between 3.0 and 10.0 g/L, - concentration of the fertiliser with metal chelates ranges from 0.5 to 1.0 g/L in relation to the total volume of the composition.
  2. The composition according to claim 1, characterised in that the alkyl group is a methyl group (-CH 3 ).
  3. The composition according to claim 1, characterised in that the cosolvent is acetone (propan-2-one) or ethyl alcohol (ethanol).
  4. The composition according to claim 1, characterised in that it is used for the cultivation of plants, preferably monocotyledons.
  5. The composition according to claim 4, characterised in that it is used for cultivation of cereal plants of Poaceae family: maize ( Zea mays) or barley ( Hordeum vulgare ) .
  6. Composition according to claim 4, characterised in that it is used in the cultivation of ornamental plants of cypress family: northern white-cedar ( Thuja occidentalis).
  7. The composition according to claim 1, characterised in that it is used for the control of weeds, preferably monocotyledons.
  8. The composition according to claim 7, characterised in that it is used for the control of weeds of the Poaceae family, preferably selected from the group of hairy crabgrass, couch grass, cockspur grass, bushgrass.
  9. The composition according to claim 1, characterised in that it is used for the control of weeds, preferably dicotyledons.
  10. The composition according to claim 9, characterised in that it is for use in the control of weeds of amaranth family, preferably white goosefoot.
  11. The composition according to claim 9, characterised in that it is used for the control of weeds of Asteraceae family, preferably selected from the group comprising sea mayweed, European goldenrod.
  12. The composition according to claim 9, characterised in that it is used for the control of weeds of nightshade family, preferably black nightshade.

Description

The invention relates to compositions of adjuvants and cosolvents for improving the penetration of herbicides and/or fertilisers through surfaces of aboveground parts of plant organs. Use of organic substances characterised by adjuvant or modifying effect on the physicochemical properties of biologically active substance is an idea known since the 1950s and perfected in the 1980s. New generations of adjuvants may comprise surfactants, vegetable or mineral oils with emulsifiers and simple inorganic salts. An adjuvant should dissolve biologically active substances well, penetrate biological membranes and be harmless and metabolised quickly. The use of an adjuvant is limited by the structure of the active substance, the mass of which should not exceed 500 g/mol, the log P (lipophilicity) should be between a value of 1 and 3, and the melting point should not exceed 200°C. In addition, a good adjuvant should not form microplastics when applied to plant surfaces. The essential role of adjuvants is to prevent drift of liquids from the leaf surface, to ensure better adhesion to the leaf surface, to reduce surface tension and to accelerate the absorption of biologically active substances. The ideal adjuvant should combine all of the above features. Currently, more than 350 chemical substances (chemical penetration enhancers (CPEs) enhancing penetration through biological membranes are known. Various groups of adjuvants have been classified according to their chemical structure: sulfoxides and their derivatives, alcohols and polyols, acyclic and cyclic amides, fatty acids and their esters, amines, amino acids and their derivatives, terpenes, cyclodextrins, tensides and other organic compounds [J. Jampilek, K. Brychtova, Med Res Rev. 32 (2012) 907-947]. The Polish patent [PL229494] claims an adjuvant for soil-applied agrochemicals comprising plant protection products, biostimulants, artificial fertilisers. The adjuvant contains an emulsifying and wetting component constituting a multi-component mixture of surfactants: ethoxylated coco alkyldimethylamine, ethoxylated castor oil, ethoxylated alkyl amines C16-C16 and polymer-like surfactants such as diethanolamine salts of polyoxyethylated alcohol phosphate C12-C14, linear and branched ethoxylated alcohols C9-C9 and sodium salt of succinic acid monoester of ethoxylated nonylphenol. A similar family of inventions based on surfactants includes patents [PL192189; PL234744; WO2004006670A1, US10980228B2] or patent applications [P.433649; P.433649]. The Polish patent [PL239074] describes the use of derivatives of 1,3-dioxolanes as penetrants used in the presence of buffers stabilizing the pH in the range of 3 to 12 (borate or phosphate or ammonium or carbonate or acetate or citrate or lactate or formate or succinate or malonate or bis-tris or ADA or ACES or MOPSO or MOPS or PIPES or BES or TES or HEPES or DIPSO or TAPSO or TEA or POPSO or HEPPSO or TRIS or TAPS or AMPD or PBS or CHES or CAPSO or AMP or CAPS or CABS). The compositions preferentially raised the functional properties of: auxins (natural or artificial), simple inorganic salts and non-steroidal anti-inflammatory drugs (ibuprofen, naproxen) as stimulants for maize growth. Another Polish patent application [P.443340] describes the use of 1,3-dioxolate derivatives as penetrants in a composition without the addition of stabilising buffers and without the addition of cosolvents in improving the properties of gifosate (RoundUp 360 Plus) in maize cultivation. The U.S. patent US10259753B2 discloses an organic composition for agricultural use comprising a nutrient source and a phosphopeptide comprising a complexation product of: an organic acid, a biocomplexing agent and a phosphorus source. A typical composition for agricultural use comprises: nutrient source nitrogen, phosphorus, potassium in an amount of 2-45%; complexing agents in an amount of 5-35%; peptides in an amount of 5-30%; phosphopeptides in an amount of 5-15%; carbohydrate source in an amount of 3-10%; trace minerals in an amount of 0.5-3%; vitamins in an amount of 0.1-2.0%; pH indicator in an amount of 0.2-3%; humectant in an amount of 0.1-2%; surfactants in an amount of 3-10%; anti-foaming agents in an amount of 0.2-1%; penetrating agents in an amount of 1-5% and thickeners/stabilisers in an amount of 0.05-0.1%. The following were listed as penetrating agents: alcohols, pine extracts, natural oils and petroleum oils. Patent description of US4155745A discloses the use of 2-(chloroacetylamino)methyl-1,3-dioxolate derivatives with R and R1 functional groups being independently of each other: alkyl or fluoroalkyl groups containing 1 to 4 carbon atoms; a phenyl substituent or a hydrogen atom, as herbicides. Applications of the herbicide included the control of weeds such as Hairy Crabgrass (Digitaria sanguinalis), Pearl millet (Setaria glauca), Cockspur grass (Echinochloa crusgalli), California Oats (Avena sativa), Redroot pigweed (Amaranthus retroflexus), Indian