HU192822B - Process for production of celate-forming agent consisting of more components and metallic celates and plant-fodders containing thereof as active substance - Google Patents

Abstract

The plant nutrient solutions of the present invention serve, on the one hand, to promote the nutrient uptake of plants and, on the other hand, to eliminate the deficiencies of plants, and to regulate the development of plants. The novel plant nutrient solutions of the present invention comprise, as active ingredient, a six-component chelating agent, and metal chelates formed with the metals required for plants. The plant nutrient solutions of the present invention may contain, in addition to the active ingredients, further chelating macronutrients and micronutrients, in the form of salts, acids or bases, and hormone-stimulating hormones. The plant nutrient solution according to the invention contains all the ingredients in the form of an aqueous solution. 192822 -1-

Description

The present invention relates to a plant nutrient medium and to a process for the preparation of the active compounds of the composition.

The plant nutrient solution according to the invention is intended, on the one hand, to promote the nutrient uptake of plants and, on the other hand, to eliminate deficiencies of plants and to complexly regulate the development of plants.

More particularly, the present invention relates to a process for the preparation of a novel 2-hydroxy-5-sulfobenzylamine salt of formula (I), a 2-hydroxy-5-sulfo-1,3-xylene diamine salt of formula (II), a di - [( 2-hydroxy-5-sulfo) benzyl] -amine salt, tri - [(2-hydroxy-5-sulfo) benzyl] -amine salt of formula IV, poly [(2-hydroxy) 5-sulfo) -1,3-xylylene] -amine salt and M ₂ SO _{4 in} which M is an alkali metal or an aqueous solution of a chelating agent or ammonium and n is 2 to 5 by the addition of 1 mole of phenol After sulfurization with 1.05-1.2 moles of sulfuric acid at 110-120 ° C in a known manner, the resulting p-phenolsulfonic acid is neutralized with 1-1.5 moles of alkali metal hydroxide or ammonium hydroxide, and the resulting p-phenol sulfonate is added. in the case after separation from the reaction mixture -

1.3-3 mol / dm ³ , preferably 1.8-2.2 mol / dm ^{3 of} aqueous ammonium hydroxide and 1.3-3 mol / dm ³ , preferably 1.8-2.2 mol / dm ³ reaction with aqueous formaldehyde solution at 60-80 ° C, dilute the reaction mixture with water to a concentration of 2.2-2.8 mol / dm ³ of p-phenolsulfonate and stir at 80-110 ° C the pH is between 9-11 and then the impurities are removed by settling and the chelating agent is isolated if desired from the aqueous solution containing the new chelating agent.

The present invention also relates to novel metal chelates of general formulas VI, VII, VIII and IX wherein M is an alkali metal or ammonium, Me is cobalt, copper, iron, magnesium, manganese or zinc, n is 2 to 5 - for the preparation of mixtures thereof or of an aqueous solution thereof, optionally containing a chelating agent, so that an aqueous solution of the above prepared chelating agent in a concentration of 0.1 to 0.4 mol / dm ³ is 3.7 to 3.8 mol / dm. ³ calcium carbonate or 0.08-0.09 mole / dm ^{3 of} cobalt nitrate or 0.6-0.7 mole / dm ³ copper sulfate or 0.7-0.8 mole / dm ³ iron sulfate or 1.6 - added to an aqueous solution containing 1.7 mol / dm ³ magnesium sulfate or 0.5-0.6 mol / dm ³ manganese sulfate or 0.4-0.5 mol / dm ³ zinc sulfate, and optionally the metal chelates thus obtained are separated from the aqueous solution.

The invention also relates to one or more metal chelates and one or more microelements, such as cobalt, copper, iron, manganese, zinc, and / or one or more meso-nutrients such as magnesium, calcium, and / or one or more. a plant nutrient containing a macronutrient such as potassium, nitrogen, phosphorus and optionally a chelating agent and optionally one or more plant hormone-acting substances in an amount of 0.04-0.40 mol / dm ³ , 45-55% by weight of dry matter 1-3% by weight of the 2-hydroxy-5-sulfobenzylamine salt of the formula (I), 1-3% by weight of the 2-hydroxy-5-sulfo-1,3-xylene diamine salt of the formula (II), 16- 22% by weight of the bis - [(2-hydroxy-5-sulfo) benzyl] amine salt of the formula III, 5-10% by weight of the tris [(2-hydroxy-5-sulfo) benzyl of the formula IV ] -amine salt, 16-22% by weight of poly {[(2-hydroxy-5sulfo) -1,3-xyleneylene] -amine} salt of the formula V and 2-3% by weight of M ₂ SO ₄ - in these formulas M is an alkali metal or ammonium ion and n is a 2-5 - - chelating agent and 0-0.90 mol / dm ^{3 of} potassium hydroxide in chelate form and 0-0.6 / dm ^{3 of} phosphoric acid, 0-5.4 moles / dm ^{3 of} ammonium nitrate in ionic form and 0-4.3 mol / dm ^{3 of} urea, 0-0.7 mol / dm ^{3 of} orthoboric acid in ionic form, 0-3.8 mol / dm ^{3 of} calcium carbonate in ionic form, 0- 0.09 mol / dm ^{3 of} cobalt nitrate in chelate form, 0-0.7 mol / dm ³ copper sulfate in 35-45% ionic and 55-65% in chelate form, 0-0.8 mol / dm 3 ³ iron sulphates 43-53 wt% ionic and 47-57 wt% chelated, 0-1.7 mol / dm ³ magnesium sulphate 88-92 wt% ionic and 8-12 wt% in the form of chelate, 0-0.6 mol / dm ³ manganese sulfate 25-35% by weight ionic and 65-75% by weight chelated form 0-0.03 mol / dm ³ ammonium molybdenate in ionic form 0 to 2,6 mol / dm ^{3 of} biammonium hydrogen phosphate in ionic form 0 to 0,5 mol / dm ³ zinc sulfate 55-65% by weight in ionic form and 35-45% by weight in chelate form, 0-3.2 mol / dm ³ ammonium sulfate in ionic form, 0-200 mg / dm ³ gibberellic acid (A ₃ ) potassium salt, hereinafter gibberellin, 0-200 mg / dm ³ N-npi opylbenzimidazolium bromide, hereinafter cytokinin, 0-3,5 mg / dm ³ 3 - [(4-amino-2-methyl-5-pyrimidinyl) methyl] -5- (2-hydroxyethyl) 4-methylthiazolium chloride, i.e. vitamin B1, hereinafter referred to as thiamine, 0-11 mg / dm ^{3 of} p-indole- ³ -butyric acid, hereinafter referred to as indole butyric acid and 0- It contains 7 mg / dm ^{3 of} β-indole acetic acid, hereinafter referred to as indole acetic acid, in the form of an aqueous solution and is present in the plant nutrient solution in at least one of the listed components other than 0 mol / dm ³ .

A further limited range of the plant nutrient solutions of the present invention are compositions for eradicating plant fungal diseases which contain from 0.1 to 0.4 moles / dm ³ , 45 to 55% by weight of dry matter, of 2 to 3% by weight of the compound of formula (I). -hydroxy-5-sulfobenzylamine salt, from 1 to 3% by weight of the 2-hydroxy-5-sulfo-1,3-xylene diamine salt of the formula II, from 16 to 22% by weight of the bis [( From 2-hydroxy-5-sulfo) benzyl] -amine salt, from 5% to 10% by weight of tris [(2-hydroxy-5-sulfo) benzyl] -amine salt of general formula IV, from 16% to 22% by weight (V). ) of the formula [(2h-iroxy-5-sulfo) -1,3-xyleneylene] and 2 to 3% by weight of M ₂ SO ₄ - in these formulas M is an alkali metal or ammonium and n is 2 -5 - AFO chelating agent, and 0.8 to 0.9 mol / dm ³ potassium hydroxide and 0.5 to 0.6 mol / dm ³ phosphoric acid or 5.3-5.4 mol / dm ³ ammonium nitrate and 4.2 to 4.3 mol / dm ³ urea or 0.6 to 0.7 mol / dm ³ orthoboric acid or 3.7 to 3.8 moles / dm ^{3 of} calcium carbonate or 0.08 to 0.09 moles / dm ^{3 of} cobalt nitrate or 0.6 to 1.7 moles / dm ^{3 of} copper sulfate or 0.7 —0.8 mol / dm ³ iron sulphate or

1.6 to 1.7 moles / dm ^{3 of} magnesium sulfate or 0.5 to 0.6 moles / dm ^{3 of} manganese sulfate or 0.005 to 0.03 moles / dm ^{3 of} ammonium molybdenate or 2.5 to 2.6 moles mole / dm ^{3 of} biammonium hydrogen phosphate or 0.4-0.5 mole / dm ³ zinc sulfate or 3.1-3.2 mole / dm ³ ammonium sulfate in aqueous solution.

Also included in the narrower range of plant media according to the invention are formulations for the complex control of plant development which contain from 0.3 to 0.4 mol / dm ³ , from 45 to 55% by weight of dry matter of 2 to 3% by weight of from hydroxy-5-sulfobenzylamine salt, from 1 to 3% by weight of 2-hydroxy-5-sulfo-1,3-xylene diamine salt of formula II, from 16 to 22% by weight of bis [(2) -hydroxy-5-sulfo) benzyl] amine salt, 5-101% of tris [(2-hydroxy-5-sulfo) benzyl] -amine salt of formula IV, 16-221% of poly { A chelating agent consisting of [(2-hydroxy-5-sulfo) -1,3-xylene] amino} salt and 2 to 3% by weight of M ₂ SO _{4 in} which M is an alkali metal or ammonium and n is 2 to 5, and from 0.3 to 0.5 mol / dm ³ potassium hydroxide and 0.2 to 0.35 mol / dm ³ of phosphoric acid, 0.45 to 0.80 mol / dm ³ of ammonium nitrate and 0.1 to 0, 4 mol / dm ³ of urea, from 0.02 to 0.15 mol / dm ³ of ortho boric acid, 0.00005 0.00015 mol / dm ³ of cobalt nitrate, 0.005 to 0.035 mol / dm ³ of copper sulphate, 0.03 to 0.08 mol / dm ³ of ferrous sulfate, 0.075 to 0.2 mol / dm ³ of magnesium sulfate, 0.01-0.05 moles / dm ^{3 of} manganese sulfate, 0.000005-0.000015 moles / dm ^{3 of} ammonium molybdenate, 0.008-0.03 moles / dm ^{3 of} zinc sulfate and optionally 10-200 mg / dm ³ dm ³ gibberellin and / or 100-200 mg / dm ³ cytokinin and / or 2.5-3.5 mg / dm ³ thiamine and / or 9/11 mg / dm ³ indole acid and / or 5-7 mg / dm ³ containing indole acetic acid in the form of an aqueous solution.

According to the results of plant physiological studies, plants absorb more chelated nutrients bound to organic matter both in their roots and leaves than in the form of inorganic salts. If the metal is not chelated, an order of magnitude must be applied in order for the plant to absorb the desired amount. The excess pollutes the environment (Dr. István Pais, “The Role of Micronutrients in Agriculture”, page 64, Agricultural Publisher, Budapest, 1980). However, it is also necessary to add nutrients in ionic form, but to a lesser extent. Namely, the nutrients in the ionic form accumulate primarily in the reinforcing tissues, thereby helping to strengthen the skeleton, while the chelated nutrients are directly involved in the life processes. Thus, most of the nutrients administered in ionic form are inactivated in the tissues without adversely affecting life processes. In mild deficiency disorders, the addition of chelating agents alone can also mobilize some of the inactivated nutrients (Dr. István Pais, "The Role of Micronutrients in Agriculture", p. 38, Agricultural Publishers, Budapest, 1980). Therefore, it is desirable to add the nutrients bound to an organic compound having a chelating property.

Hungarian Patent No. 154,287 describes a process for the preparation of chelating organic compounds, including an exemplary embodiment for the preparation of dimethylaminobis (2-hydroxyphenyl) -5-sodium sulfonate. In this example, the calculated exact amount of sodium p-phenolsulfonate required for the preparation of the desired target compound is formaldehyde and ammonium hydroxide, i.e., 2 moles of sodium p-phenols sulfonate, 2 moles of formaldehyde, and only half a mole, i.e. 1 mole of ammonia. . After refluxing for 8 hours, the aqueous reaction mixture is poured into acetone and the desired end product, which is poorly soluble in acetone, is filtered off. Thus, the product is prepared in 90-92% yield, and the filtrate contains all impurities, such as unreacted starting materials, which have a significantly different solubility and thus chemical structure than the final product. Since the reaction is carried out in a dilute solution in the presence of a lot of water, and the reaction itself is a water withdrawal process, the presence of a lot of water, according to the law of mass effect, counteracts the reaction so that more or less starting material can be finished. However, no information is given in the specification regarding the identity of the final product, the dry matter content, the reaction monitoring and the chelating capacity of the final product. It follows from the formula (Ia) that the product behaving like a three-membered ligand also binds one mole of a single divalent metal, one of which is bonded to the free electron pair of one oxygen atom and the other of one. The fact that ammonium hydroxide is present in about half the molar ratio of the starting compounds used has the drawback that it greatly reduces the possibility of more than one methylamino group being incorporated into the molecule, and to form molecules that have multiple nitrogen atoms so that one molecule can bind a multivalent metal. This requires the presence of an equal molar ratio of ammonium hydroxide and formaldehyde, since they form the hydroxymethylamine which reacts with the p-phenolsulfonate. In the present case, even though two oxygen atoms are present in the molecule with a free electron pair capable of forming a chelate bond, if there is only one nitrogen atom with a free electron pair capable of forming a chelate bond, it will be able to bind only one divalent metal. has a suitable free electron pair.

Hungarian Patent No. 179,047 relates to the preparation of metal chelates based on phenol. Although the general formula may be used for the preparation of ο-, m- and pmonophenol-sulfonates containing a hydroxymethyl group, the description does not contain any exemplary embodiment, nor does the description itself make any general reference to it. about the opportunity. Even if the compound were specifically made, it would have the following disadvantages. First, according to the example reported, the ο-, m- and pisomers are formed together in the sulphonation of phenol, but it is well known that only the β-isomer can be used for chelation, which is only part of the mixture. Reaction of 1 mole of p-phenolsulfonate with 1 mole of hydroxymethylamine in this moiety would in principle result in the formation of phenolsulfonate containing a single hydroxymethyl group of formula (I), but only in small amounts relative to the starting phenol. This compound, as in the other specification, could only function as a two-tooth ligand since it could bind only one divalent metal by a datate bond to a chelate complex with two free electron pairs on the phenolic oxygen atom and the nitrogen atom of the amine.

Contrary to the two patents described, the object of the present invention was not to produce a single compound having a certain degree of chelating capacity, but to provide a novel chelating agent, which may optionally be composed of several components and capable of forming lower capacity complexes with metals which quickly release the metal so that the plant can utilize it immediately and, on the other hand, be able to form complexes with much higher capacity with the necessary metals, which results in a certain retardation effect, the plant is able to sell the metals slowly and gradually .

It has been found that if the sulfonation of the phenol is carried out so that only the p-phenolsulfonic acid is formed and the molar ratio of p-phenolsulfonate, ammonium hydroxide and formaldehyde formed is selected as described above in the process of the present invention, a new chelating agent consisting of six components in which the predominant four component is prone to chelation is formed by the action of the compound of formula I as a bidentate, the compound of formula II and III as a trivalent ligand and each capable of bonding a divalent metal, and the compound of formula IV is capable of binding 4 to 10 divalent metals depending on the value of n. Consequently, the compounds of formula (I), (II) and (III) form less stable complexes with metals, while the compound of formula (IV) forms a very stable complex. Thus, the complexing agent produced by the process of the present invention contains a variety of ligands which form complexes of different structures and stability, thereby fulfilling the requirement that the metal chelates formed by the complexing agent produced by the process of the invention have a so-called depot they can also have an effect on plants. Because of the low-stability complexes, the plants can absorb the metal ions they need very easily, while the more stable chelates can only slowly remove the metal ions and this is the guarantee of lasting effect.

Thus, according to the present invention, a new chelating agent having a high solids content and high chelating capacity, both short-term and long-term, is prepared. The production process can be easily and securely traced by potentiometric titration and the resulting products can be identified by ¹³ C-NMR and Ή-NMR spectroscopy. As a result, the reaction can be carried out in such a way that the predominant molecules in the products are those which have a chelating property and that only a minor amount of the products without this property are present. A further advantage is that the chelation from simple starting materials can be carried out by an energy-saving reaction and that the various chelating agents, bases and materials which are to be further converted into the appropriate chelates can be added directly to the resulting chelating agent mixture. In the resulting mixture, some of the elements are present in ionic form, dissolved in water, and the remainder in chelated form. According to the invention, the chelating agent solution may be added to any aqueous solution of one or more inorganic salts, acids or bases in nutrients for the plants, so that plant media containing one or more active ingredients can be prepared or mixed in any ratio. always according to desire. agricultural plant nutrient compositions containing a variety of active ingredients can be prepared. Multiple media solutions may also be prepared by preparing a single aqueous solution of the individual plant inorganic salts of the solid inorganic salt, base or acid and adding an aqueous solution of the chelating agent. Multiple drug containing nutrient solutions can be prepared by supplementing the plant growth regulating nutrient medium with an appropriate proportion of plant growth promoting hormones. The composition of the multicomponent plant nutrient solutions depends on the plant to be applied, i.e. the agricultural nutrient composition according to the invention is plant specific. The composition also depends on the soil and weather conditions. One-component solutions of agricultural plant nutrient solutions, which contain one active ingredient, can be used in various crop cultures to eliminate deficiencies revealed by analytical results of samples taken from soil or from 5 plants.

The chelating agent of the present invention can be prepared as follows.

In the first step of the reaction, the phenol is sulfonated with sulfuric acid. The sulfonation is conveniently carried out at a temperature of 110 to 120 ° C using a small amount of excess sulfuric acid. Under these conditions, essentially only p-phenolsulfonic acid is produced in very good yields.

After sulfonation, the reaction mixture is neutralized. The neutralization can be carried out with an alkali metal hydroxide, such as sodium or potassium hydroxide, preferably potassium hydroxide, or ammonium hydroxide, which is more advantageous and more economically available to plants. The reaction mixture thus neutralized can be used directly in the process of the present invention to prepare a chelating agent without isolating the resulting p-phenolsulfonic acid alkali metal or ammonium salt itself from the sulfonation reaction mixture. However, it is also possible to isolate the corresponding p-phenol sulfonate from the reaction mixture because a significant amount of the salt precipitates from the concentrated solution upon cooling, and can be isolated by filtration, stored in a solid form and used subsequently.

Then 1 mol per mole of p-phenol sulfonate in the neutralized sulfonation reaction 1.3 to 3.0 mol / dm ^3, preferably 1.8 to 2.2 mol / dm ³ aqueous solution of ammonium hydroxide and 1.3 to 3.0 mol / dm ^3, preferably 1.8 to 2.2 mol / dm ³ aqueous solution of formaldehyde is added. Advantageously, the ammonium hydroxide and the formaldehyde are pre-combined and heated to 60-70 ° C before being poured into the p-phenolsulfonate. Thus, the concentrated solution may more readily form the HO-CH ₂ -NH ₂ adduct compound required to form the chelating agent. However, longer co-heating is not required as the adduct compound is formed within the first few minutes after molding. This was confirmed by NMR. The absolute molar concentrations of p-phenol sulfonate, ammonia, formaldehyde are preferably: p-phenol sulfonate: 2.0-3.0 mol / dm ³ , preferably 2.4-2.6 mol / dm ³ , ammonia: 2 0 to 9.0 mol / dm ^{3 is} preferably 4.0 to 6.0 mol / dm ³ and formaldehyde has the same absolute molar concentration as ammonia.

The absolute concentration of the starting materials is relatively high, since compounds with the advantageous chelating properties may be formed in larger amounts in a concentrated solution. The same amount of ammonia as formaldehyde is needed because the more nitrogen incorporated into the chelating agent, the more advantageous the chelating agent will be. This was confirmed by elemental analysis. The metal ions to be chelated prefer to form complexes with nitrogen-containing ligands. The temperature of the chelation reaction may be 80-110 ° C, preferably 90-100 ° C. The reaction time is expedient

1-2 hours, preferably 1.5 hours, during which time the chelating agent is formed and further heating of the mixture results in the accumulation of unfavorable end products.

Starting from solid p-phenol sulfonate, it is also possible to dissolve the p-phenol sulfonate in the required amount of water and then add the ammonia, preferably premixed and heated to 60-70 ° C. and formaldehyde.

The chelating agent prepared in the above manner is suitably aged for about a week so that any polymer, ballast, etc., which may be formed in the solution. settle down and do not interfere with further use.

During the preparation of the chelating agent comprising the compounds of formula (I), (II), (III), (IV), (V) and salts of M ₂ SO _{4 in} aqueous solution, the pH of the reaction mixture increases with increasing reaction time. . The end of the reaction is indicated by the fact that the pH of the reaction mixture does not change by more than 0.1-0.2. The reaction is suitably continued until the pH of the reaction mixture is 9-11, preferably 9.5-10.5. (This takes about 1-2 hours, preferably about 1.5 hours.) This pH range appears to be the optimum pH for the chelating agent, since when used to prepare new metal chelates for use as active ingredients in the compositions of the invention, the metal chelates the pH of the above 9-11 is reduced to a value of 6-7 which is most favorable to the plants. The aqueous metal salt solutions used to form the new metal chelates have an acidic pH while the chelating agent solution has an alkaline pH, so that the pH of the mixture is nearly neutral when poured.

The novel chelating agent of the present invention is not a chemically uniform substance, but an aqueous solution of a mixture of six compounds. Separating the individual components from each other is not a solved task, but it does not seem to be important as it is completely indifferent to use. The chelating agent of the present invention is quite clearly characterized by its density, pH, solids content, chelating capacity and NMR spectra, within certain limits, the amount and ratio of each constituent and the individual NMR spectra. structure of components.

Chelating capacity is defined as the percentage of the amount of chelating agent in 100 g of chelating agent.

The density of the chelating agent according to the invention is 1.265-1.275 g / cm ³ , pH 9-11, preferably 9.5-10.5.

The dry matter content of the chelating agent prepared by the process of the invention is determined by evaporating the aqueous solution containing the chelating agent and drying it at 105 ° C. The dry matter content is generally between 45 and 55% by weight.

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The following method is used to determine the chelating capacity of a chelating agent prepared by the process of the present invention. The aliquot of the chelating agent is titrated with a copper sulfate standard solution, the end point is monitored by a copper ion selective electrode or a glass electrode by measuring the pH and the end point is indicated potentiometrically. Chelating capacity is calculated based on weight loss. The chelating agent produced by the process of the invention has a chelating capacity in the range of 30 to 40% by weight.

The chemical composition of the dry matter content of the chelating agent prepared by the process of the present invention, the quantitative limits and the relative limits of each component based on the NMR spectra are as follows:

1-3% by weight of a compound of the formula I,

1-3% by weight of compound of formula II,

16 to 22% by weight of the compound of formula III,

5 to 10% by weight of a compound of formula IV,

16 to 22% by weight of the compound of formula (V),

2-3% by weight of M ₂ SO ₄ .

Both the primary amines of the formulas I and II and the secondary amines of the formulas III and V are capable of forming a metal chelate, only in the presence of a relatively small amount of the tertiary amine of the formula IV and M _2. The inorganic salt of formula S0 ₄ does not form a chelate with metals. The structure and amount of the compounds present in the chelating agent can be determined by semi-quantitative NMR spectroscopy.

The novel chelating agent of aqueous solutions of the compounds of formulas (I), (II), (III), (IV), (V) and M ₂ SO _{4 according to} the invention can be used in analytical chemistry such as complexometric titrations, pharmacists, animal feed production methods and to help plant nutrient uptake. In the latter case, for example, when the new chelating agent of the invention is applied to the plants, it can be observed that the amount of micronutrients is increased in the plants. This is in fact due to the mobilizing effect of the chelating agent, which is effective both in the plant and in the soil.

For example, the novel chelating agent prepared by the process of the present invention can be used to produce chelates of the following metals: cobalt, copper, iron, magnesium, manganese, zinc, calcium, and the like. For example, these metals may be dissolved in water in the form of a nitrate or sulfate salt such as cobalt nitrate, copper sulfate, iron sulfate, magnesium sulfate, manganese sulfate, zinc sulfate and the chelating agent may be added. The microorganism, field or macro nutrient media or multicomponent plant media obtained by the process of the present invention can be mixed with other nutrients such as calcium nitrate, ammonium sulfate, ammonium nitrate, orthoboric acid, phosphoric acid, ammonium molibdenáttal. The present invention also provides solutions containing a micro-, field- or macro-element, as well as multi-component solutions. Solutions containing one micro-, field- or macro-element can be used, for example, to eliminate deficiency disorders discovered by analytical analysis of soil or plant samples in each crop.

In the preparation of multicomponent plant media, it is convenient to first prepare a stock solution containing macronutrients such as potassium, nitrogen, phosphorus. Of these, potassium may be used, for example, in the form of potassium hydroxide, nitrogen in the form of ammonium nitrate and urea, and phosphorus in the form of biammonium hydrogen phosphate. To this plant medium may be added the desired one or more meso nutrients such as magnesium and calcium or the desired one or more micronutrients such as cobalt, copper, iron, manganese, zinc and the like. The field and micronutrients may preferably be administered in the form of solutions containing a field or micronutrient. Alternatively, the micro- and meso-nutrients may be weighed in the form of a solid acid, salt or base and dissolved in water. Solutions containing one micro- or meso-element may also contain a chelating agent in which the particular nutrient is not chelated, such as solutions of boron, potassium, molybdenum, nitrogen, phosphorus or sulfur containing a micro-, field- or macro-element. The non-metal chelating agent, as mentioned above, promotes the mobilization of metal ions in the soil or in the plant. Other substances such as gibberellin, cytokinin, indole butyric acid, indole acetic acid, thiamine and the like are added to the plant media thus prepared. add. The ingredients of the plant nutrient solution according to the invention are determined by the plant cultures to which the composition is to be applied. The plant nutrient solutions of the invention are plant specific. The amount and relative proportions of each ingredient are also influenced by soil and weather conditions.

The invention encompasses both multicomponent plant nutrient solutions for complex control of plant development and plant nutrient solutions containing micro-, field- or micro-nutrients for the elimination of plant deficiency diseases.

Plant media containing a micro-, field- or macro-element within the scope of the present invention can be used to eliminate ailments of plants by, depending on the analytical results of samples taken from the soil or the plant, lacking micro- and / or field- and / or micro in nutrient and / or chelated form, plant medium containing compounds of the formulas (I), (II), (III), (IV), (V) and M ₂ SO ₄ , water and, if desired, other substances such as hormones and / or seed and / or foliage at different stages of development. Plants were counted from the time of sampling

It should be treated within 613 weeks, according to the test results. The dose is determined by the degree of deficiency.

The multicomponent plant nutrient solution within the scope of the invention can be used to complexly regulate plant development, including beneficial changes in the content of the plant, such as reducing water content, increasing protein, sugar or oil content, and manipulating the technological utilization of phenological phases. Accordingly, one or more of the macro and / or field and / or micronutrient elements of the invention in ionic and / or chelated form, (I), (II), (III), (IV), (V) and M ₂ SO _4. The plant-specific plant nutrient medium containing the compounds of the formula I, water and optionally one or more plant growth hormone is applied to soil and / or seed and / or to foliage at different stages of development.

The methods for combating deficiency diseases of plants and for complex control of plant development can be used individually or in combination. The plant nutrient solutions of the present invention are capable of satisfying the soil and plant nutrient supply in a complex manner in both agricultural and horticultural production. By utilizing the plant nutrient solutions of the present invention, it is possible, among other things, to economically replace the macro, field and micronutrients essential for plants as well as the plant hormones required for plant development.

As a result of the use of the plant nutrient solutions of the invention, the nutrients that are absorbed in non-absorbable form become available, increase the biological activity of the soil, accelerate the growth of beneficial soil macro and microorganisms, stimulate root development, germinate and germinate more rapidly. development of seedlings, early ripening of crops, increased disease resistance of plants, increased sugar content, fiber length, leaf surface and increased shelf life of the product.

The plant-specific nutrient medium according to the invention can be used in field crop production, in vine and fruit, vegetable and ornamental cultivation and in propagation material production. A further outstanding and very significant advantage of the plant nutrient solution according to the invention is that it is not dangerous to humans or animals, it does not contain toxic substances, nor any other excipients commonly used in plant nutrient solutions besides water.

The plant-specific plant nutrient solution according to the invention can be used as a basic fertilizer or as a foliar fertilizer for the prevention, cure and nutritional supplementation of deficiency diseases. The plant medium according to the invention is in liquid form so that application to the surface to be treated can be effected simply by means of a field or aerial spraying machine. The plant nutrient solution according to the invention may also be mixed with pesticides, if desired, and expedited for reasons of expediency. As a result of the seed dressing method of the plant-specific plant medium according to the invention, a faster, more uniform germination is expected.

The plant-specific plant nutrient solution according to the invention can be used for soil treatment, in which case the crop can be sprayed onto the soil surface and applied to the soil to the depth of tillage. We can do the same in the case of plantations. In the case of intensive cultivation (eg foil, greenhouse), the composition can also be sprayed onto the soil surface and then applied to the depth of seedling or sowing during soil preparation. The composition may be applied by spraying. As a result of the soil treatment with the plant nutrient solution of the present invention, it is expected that soil condition will be improved, which in effect means improved biological activity, improved nutrient utilization, synergism with herbicides, and increased resistance to weather extremes. The root mass will be higher and development will be faster.

The plant-specific plant nutrient solution of the invention may also be used for leaf treatment. The product is applied at the beginning of intensive growth or green ripening of the crop, at the beginning of intensive growth (foil, greenhouse) or at the beginning of intensive growth. It can be applied 2 to 4 times every 3 weeks. Application is also effected by spraying. As a result of the treatment, it is expected that the assimilation surface will be larger, growth will be faster, fruits will be more beautiful, nutritional value will be improved, plant protection problems will be reduced, storage will be better, yield can be increased earlier the fungicidal effect.

The plant nutrient solutions of the invention, which promote plant nutrient uptake and / or combat plant deficiencies and / or complexly regulate plant development, are preferably used in cereals such as corn, lucerne, soybean, etc., corn, sugar beet, beet, such as peppers, tomatoes, peas, etc., ornamental plants, grapes, apples, etc.

The invention is illustrated by the following non-limiting examples.

Example 1

Preparation of Potassium p-Phenol Sulfonate At a temperature above 110 ° C, 60 dm ^{3 of} 96% (1.05 kmole) sulfuric acid were added per kg (1 mole) of phenol. The resulting (m.p. 176-177 ° C) was neutralized with 174 kg (1 kmole) of p-phenolsulfonic acid and excess sulfuric acid in 62 kg (1.10 kmole) of potassium hydroxide dissolved in 27 dm ^{3 of} water.

-715

Melting point: 325-330 ° C

Example 2

Preparation of sodium p-phenol sulfonate

All of these were carried out as in Example 1, except that the neutralization was carried out with 44 kg (1.10 kmol) of sodium hydroxide dissolved in 27 dm ^{3 of} water.

Melting point: 295-300 ° C.

Example 3

Preparation of ammonium p-phenol sulfonate

All of these were carried out as in Example 1, except that the neutralization was carried out with 80 kg of 25% (1.17 km) aqueous ammonium hydroxide solution.

270-271 ° C:

Example 4

Preparation of ammonium p-phenol sulfonate

In each case, the procedure of Example 3 was followed, except that the neutralization was performed with 28 dm ^{3 of} ammonia gas at 25 ° C and 101.325 kPa.

270-271 ° C.

Example 5

- Potassium salt of hydroxy-5-sulfo-benzylamine, Dipotassium salt of 2-hydroxy-5-sulfo-1,3-xylylene diamine, bis [(2-hydroxy-5-sulfo) benzyl] - amindium potassium salt, tris [(2-hydroxy-5-sulfo) benzyl] amine tripotassium salt, poly {[(2-hydroxy-5-sulfo) 1,3-xyleneylene] amine} potassium salt, and preparation of a chelating agent containing potassium sulfate in aqueous solution.

A mixture of 150 d ³ (2.0 kmol) of 25% aqueous ammonium hydroxide and 160 dm ³ (2.0 kmol) of 35% aqueous formaldehyde solution was heated to 60-70 ° C and the solution was stirred for 1 hour. to the reaction mixture obtained in Example. Water (500 dm ³ ) is then added to give a concentration of 0.9-1.1 mole / dm ^{3 for} potassium phenol sulfonate and 1.9-2.1 mole / dm ^{3 for} ammonia. , 1.9 to 3.2 mol / dm ^{3 for} formaldehyde. The resulting mixture was heated at 90-100 ° C for 1.5 hours with constant stirring. The end of the reaction is indicated when the pH of the mixture reaches 9-li and changes only less than 0.1-0.2. Subsequently, the reaction mixture was allowed to cool to 50 ° C and stored in a container for ca. After settling for 1 week, the solution containing the chelating agent is filtered off with suction.

The chelating agent thus prepared had a dry matter content of 45-55%, a chelating capacity: 40%, a density of 1.265-1.275 g / cm ³ and a pH of 10-11.

The composition of the chelating agent was determined by NMR spectroscopy, the area under each peak indicating the ratio and amount of each compound, so that the total numerical composition cannot be given, only limits are as follows:

1-3% potassium salt of 2-hydroxy-5-sulfobenzylamine,

1-3% by weight of 2-hydroxy-5-sulfo-1,3-xylene diamine dipotassium salt,

16 to 20% by weight of bis [(2-hydroxy-5-sulfo) benzyl] amine dipotassium salt,

5 to 10% by weight of tris [(2-hydroxy-5-sulfo) -benzyl] -amine tricalcium salt,

16 to 20% by weight of poly {[(2-hydroxy-5-sulfo) -1,3-xylene] amino} potassium salt,

2-3% potassium sulphate.

Example 6

- Potassium salt of hydroxy - 5 - sulfo - benzylamine,

2-hydroxy-5-sulfo-1,3-xylene-diamine dipotassium salt, bis [(2-hydroxy-5-sulfo) benzyl] amine dipotassium salt, tris [(2-hydroxy-5-) Preparation of a chelating agent containing an aqueous solution of sulfo) benzyl] -amintric potassium salt, poly {[(2-hydroxy-5-sulfo) -1,3-xyleneylene] potassium salt and potassium sulfate

97.5 dm ³ (1.3 kmol) of 25% aqueous ammonium hydroxide: oxide and 104 dm ³ (1.3 kmol) of 35% aqueous formaldehyde solution were heated to 60-70 ° C the solution is added to the resulting reaction mixture in Example 1. Water (600 dm ³ ) is then added to give a concentration of 0.9-1.1 moles / dm ^{3 for} potassium p-phenolsulfonate and 1.2-1.4 moles for ammonia. / dm ³ , 1.2-1.4 mol / dm ^{3 for} formaldehyde. The resulting mixture was heated at 90-100 ° C for 1.5 hours with constant stirring. The end of the reaction is indicated when the pH of the mixture reaches 9-11 and changes only less than 0.1-0.2. Subsequently, the reaction mixture was allowed to cool to 50 ° C and stored in a container for ca. Leave for 1 week.

The chelating agent thus prepared had a dry matter content of 40-50%, a chelating capacity: 30%, a density of 1.255-1.265 g / cm ³ and a pH of 9-10.

The composition of the chelating agent was determined by NMR spectroscopy as described in Example 5, as follows:

4-6% by weight of 2-hydroxy-5-sulfo-7'-aniline potassium salt,

2 to 3% by weight of potassium salt of 2-hydroxy-5-sulfo-1,3-xylene diamine,

18 to 22% by weight of bis [(2-hydroxy-5-sulfo) benzyl] amine dipotassium salt,

2-3% by weight of tris [(2-hydroxy-5-sulfo) benzyl] amine tricalcium salt,

10 to 15% by weight of poly {[(2-hydroxy-5-sulfo) -1,3-xylene] amine} potassium salt,

2-3% by weight of potassium sulphate.

Example 7

Hydroxy-5-sulfo-benzylamine - sodium salt,

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- hydroxy-5-sulfo-1,3-xylene-diamine disodium salt, bis [(2-hydroxy-5-sulfo) benzyl] amine disodium salt, tris [(2-hydroxy-5-sulfo) Preparation of a chelating agent containing an aqueous solution of benzyl] amine disodium salt, poly {[(2-hydroxy-5-sulfo (1,3-xylylene) amine) sodium salt and sodium sulfate.

All were carried out as in Example 5, except that the starting reaction mixture of Example 1 was replaced by the reaction mixture prepared in Example 2.

The chelating agent thus prepared had a dry matter content of 42-54%, a chelating capacity: 40%, a density of 1.26-1.27 g / cm ³ and a pH of 10-11.

The composition of the chelating agent was determined by NMR spectroscopy as described in Example 5, as follows:

1-3% sodium salt of 2-hydroxy-5-sulfobenzylamine,

1-3% by weight of 2-hydroxy-5-sulfo-1,3-xylene diamine disodium salt,

16 to 22% by weight of bis [(2-hydroxy-5-sulfo) benzyl] amine disodium salt,

5 to 10% by weight trisodium salt of tris [(2-hydroxy-5-sulfo) benzyl] amine,

16-22% by weight of poly {[(2-hydroxy-5-sulfo) -1,3-xylene] amino} sodium salt,

2-3% by weight of sodium sulfate.

Example 8

- Hydroxy-5-sulfo-benzylamine-ammonium salt, 2-hydroxy-5-sulfo-1,3-xylene-diamine diammonium salt, bis [(2-hydroxy-5-sulfo) benzyl] amine diammonium salt, tris [(2-hydroxy-5-sulfobenzyl] amine triammonium salt, poly {[(2-hydroxy-5-sulfo) -1,3-xylene] amino} ammonium Preparation of a chelating agent containing a salt and ammonium sulfate in aqueous solution

All of the procedures described in Example 5 were followed except that the reaction mixture prepared in Examples 3 or 4 was used.

The chelating agent thus obtained had a dry matter content of 40-50% by weight, a chelating capacity: 40% by weight, a density of 1.255-1.265 g / cm ³ and a pH of 9-10.

The composition of the chelating agent was determined by NMR spectroscopy as described in Example 5, as follows:

1-3% by weight of 2-hydroxy-5-sulfobenzylamine ammonium salt,

1 to 3% by weight of 2-hydroxy-5-sulfo-1,3-xylene-diamine diammonium salt,

16 to 22% by weight of bis [(2-hydroxy-5-sulfo) benzyl] amine diammonium salt,

5 to 10% by weight of tris [(2-hydroxy-5-sulfo) benzyl] tri-ammonium salt,

16 to 22% by weight of poly {[(2-hydroxy-5-sulfo) -1,3-xylene] amino} ammonium salt,

2-3% by weight of ammonium sulfate.

starting from dry p-phenolsulfonate corresponding to 1 kmol produced and increasing the amount of water so that the absolute concentrations fall within the limits given in Example 5.

The resulting chelating agent has the same density, pH, solids content, chelating capacity and composition as in Example 5.

Example 10

Preparation of a solution containing wine

Dissolve 40.04 g (0.65 mol) of orthoboric acid in 500 cm ³ of water at 50-60 ° C. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The solution was made up to 1 dm ^{3 with} water and stirred for an additional 15-20 minutes.

Active ingredient content: 7 g boron / dm ³ . pH: 7.0-7.5.

Boron is present in the solution as borate ions.

Concentration of solution: 0.65 mol boron / dm ³ .

Example 11

Preparation of a solution containing calcium salt

374.58 g (3.75 moles) of calcium carbonate and 502.8 cm ^{3 of} 67% (7.5 moles) of nitric acid are carefully mixed in portions with constant cooling and addition of a small amount of antifoam. The acidification is continued until the solution is clear and the pH of the mixture is adjusted to 4-5 with 25% aqueous ammonium hydroxide solution. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The solution was made up to 1 dm ^{3 with} water and stirring was continued for another 15-20 minutes.

Active ingredient content: 150 g calcium / dm ³ . pH: 6.0-7.0.

Calcium is present in the solution in ionic form.

The concentration of the solution is 3.75 moles of calcium / dm ³ .

Example 12

Preparation of a solution containing a cobalt chelate complex

24.90 g (0.0848 mol) of cobalt nitrate hexahydrate are dissolved in 600 dm ^{3 of} water (60-70 ° C). Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 4, corresponding to 60 g of dry substance (0.09 mol). The volume of the solution is made up to 1 dm ^{3 with} water and the stirring is continued for another 15-20 minutes)! to be continued.

Active ingredient content: 5 g cobalt / dm ³ . pH: 5.4-6.0

100% of the cobalt in the solution is chelated.

Concentration of solution: 0.0848 mol cobalt / dm ³ .

Example 9

In each case, we proceed as in Example 5, except that Examples 1, 2, 3, 4

Example 13

Preparation of a solution containing copper salt and copper chelate 157.18 g (0.63 mol) of copper sulfate pentahydrate 919 are dissolved in 400 cm ³ of water at 70-80 ° C. Refer to Figures 5-9 for the solution. From the solution prepared according to any one of Examples 1 to 4, 250 g of dry substance (0.375 mol) is added. The volume of the solution was made up to 1 dm ^{3 with} water and stirring was continued at 40-50 ° C for a further 15-20 minutes.

Active ingredient content: 40 g copper / dm ³ . pH: 5.5-6.5.

In the solution 40% of the copper is in ionic form and 60% in chelated form.

Concentration of solution: 0.63 mol copper / dm ³ .

Example 14

Preparation of a solution containing iron (II) salt and iron chelate

Iron sulfate heptahydrate (199.12 g, 9.72 mol) was dissolved in 400 cm ³ of water at 70-80 ° C. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 4 (0.375 moles) of dry substance and made up to 1 dm ^{3 with} water. Stirring was continued at 40-50 ° C for a further 15-20 minutes.

Active ingredient content: 40 g iron / dm ³ . pH: 6-7.

In the solution 48% of the iron is in ionic form and 52% in chelated form.

Concentration of solution: 0.72 mol iron / dm ³ .

Example 15

Preparation of a solution containing potassium salt

Dissolve 47.65 g (0.85 mol) of potassium hydroxide in 500 cm ^{3 of} cold water. After cooling the solution

46.8 cm ^{3 of} 75% phosphoric acid (0.57 mol) were added. The pH of the solution with phosphoric acid was ca. Set to 5. Then add the solution as shown in Figures 5-9. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The volume of the solution was made up to 1 dm ^{3 with} water and stirring was continued for another 15-20 minutes.

Active ingredient content: 40 g potassium oxide / dm ³ . pH: 6.0-7.0

Potassium is present in solution in ionic form.

The concentration of the solution is 0.425 moles potassium oxide / dm ³ .

Example 16

Preparation of a solution containing magnesium salt and magnesium chelate

Dissolve 405.53 g (1.645 mol) of magnesium sulfate heptahydrate in 600 cm ³ of water at 70-80 ° C. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The volume of the solution was made up to 1 dm ^{3 with} water and stirring was continued at 40-50 ° C for 15-20 minutes.

Active ingredient content: 40 g magnesium / dm ³ .

pH: 6.0-7.0.

90% of the magnesium in the solution is in inert form and 10% in chelated form.

The concentration of the solution is 1.645 moles magnesium dm ³ .

Example 17

Preparation of a solution containing manganese salt and manganese chelate

92.29 g (0.55 mol) of manganese sulfate monohydrate are dissolved in 400 cm ³ of water at 70-80 ° C. Refer to Figures 5-9 for the solution. From the solution prepared according to any one of Examples 1 to 4, 250 g of dry substance (0.375 mol) is added. The volume of the solution is made up to 1 dm ^{3 with} water and stirring is continued for 15-20 minutes at 60-70 ° C.

Active ingredient content: 30 g manganese / dm ³ . pH: 6.0-7.0.

In the solution 30% of the manganese is present in ionic form and 70% in chelated form.

Concentration of the solution: 0.55 mol manganese / dm ³ .

Example 18

Preparation of a solution containing melibdene salt

6.13 g (0.005 mol) of ammonium molybdenate are dissolved in 500 cm ^{3 of} water. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The volume of the solution was made up to 1 dm ³ and stirring was continued for another 15-20 minutes.

Active ingredient content: 3 g molybdenum / dm ³ . pH: 7.0-7.7.

Molybdenum is present in the solution as molybdenate ions.

The concentration of the solution is 0.03 mol molybdenum / dm ³ .

Example 19

Preparation of a solution containing nitrogen

428.57 g (5.35 mol) of ammonium nitrate and 25 µl, 14 g (4.28 mol) of urea were dissolved in 300 cm ³ of water at 70-80 ° C with continuous cooling. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The volume of the solution was made up to 1 dm ^{3 with} water and stirring was continued for another 15-20 minutes.

Active ingredient content: 270 g nitrogen / dm ³ . pH: 7.0-7.7.

The concentration of the solution is 9.64 mol / nitrogen / dm ³ .

Nitrogen is present in the solution in the form of ammonium ion, nitrate ion or urea.

Example 20

Preparation of a solution containing phosphorus

-1 021

Dissolve 340 g (2.56 mol) of biammonium hydrogen phosphate in 500 cm ^{3 of} cold water. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The volume of the solution was made up to 1 dm ^{3 with} water and stirring was continued for another 15-20 minutes.

Active ingredient content: 180 g phosphorus pentoxide / dm ³ . pH: 7.0-8.0.

Phosphorus is present in the solution as phosphate ions.

Concentration of the solution: 1.28 moles phosphorus pentoxide / dm ³ .

Example 21

Preparation of a solution containing sulfur

412.94 g (3.125 mol) of ammonium sulfate are dissolved in 300 cm < ³ > of water at 50-60 [deg.] C. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 10, corresponding to 100 g of dry substance (0.15 mol). The volume of the solution was made up to 1 dm ³ and stirring was continued for another 15-20 minutes.

Active ingredient content: 300 g sulfate / dm ³ . pH: 7.0-7.5.

Sulfur is present in the solution as sulfate ions.

The concentration of the solution is 3.125 moles of sulfate / dm ³ .

Example 22

Preparation of a solution containing zinc salt and zinc chelate

Zinc sulfate heptahydrate (131.96 g, 0.46 mol) was dissolved in 500 cm ³ of water at 70-80 ° C. Refer to Figures 5-9 for the solution. of the solution prepared according to any one of Examples 1 to 4, corresponding to 125 g of dry substance (0.19 mol). The volume of the solution was made up to 1 dm ^{3 with} water and stirring was continued at 40-50 ° C for 15-20 minutes.

Active ingredient content: 30 g zinc / dm ³ . pH: 5.5-6.5.

In the solution 60% of the zinc is present in ionic form and 40% in chelated form.

The concentration of the solution is 0.46 moles of zinc / dm ³ .

Example 23

Preparation of stock solution for multicomponent plant medium

Dissolve 23.82 g (0.425 mol) of potassium hydroxide in 200 cm ^{3 of} cold water and carefully add 23.4 cm ^{3 of} 75% phosphoric acid (0.28 mol). The pH of the solution is adjusted to about 7 with phosphoric acid. If the multicomponent plant medium is to be applied to cereals, corn, potatoes or ornamental plants, 57.14 g (0.71 mole) of ammonium nitrate and 21.43 g (0.357 mole) of urea are then added to the above solution. However, if the multicomponent plant medium is to be used for sugar beet, sunflower, vegetables, grapes or apples, only 42.86 g (0.53 mol) of ammonium nitrate and 10.71 g (0.18 mol) of urea are dissolved in the previous solution. up.

Example 24

Preparation of Multicomponent Plant Media (j) The stock solution prepared in Example 23 is added to the stock solution prepared according to Example 23 and the micronutrient, field, or macroelement solutions and hormones listed in Table 1 below are prepared for various purposes to produce multicomponent plant media. The order in the table also represents the order of dosing. With the exception of gibberellin, the hormones must first be dissolved in water. Gibberellin is added to the solution in tablet form just prior to use because it decomposes in a short time upon exposure to the heavy metal salts in the solution. The solution is then depicted in Figures 5-9. of the chelating agent prepared according to any one of Examples 1 to 4, corresponding to 250 g of dry substance (0.375 mol). After all required solutions have been added, the final volume is adjusted to 1 dm ³ with water and the mixture is stirred for another 15-20 minutes.

Table 1

multi-component A micro. , solutions containing a field or macronutrient / [cm ³ / dm ³ ] Hormones / [mg / dm ³ ] magné- magnesium molib- ylidene indole butyric solutions iron copper zinc Skin manganese cobalt Gibberellin ^Cltokl nin indole acetic acid thiamine Grain 50 45 20 43 60 50 1.5 2 10 150 10 5 5 Maize 100 15 50 43 60 50 1.5 2 10 200 10 5 3 Sugar beet 100 15 20 144 67 50 1.5 2 120 100 10 5 3 Potato 100 15 20 72 67 75 1.5 2 120 100 10 5 3 Sunflower 50 15 20 43 50 50 1.5 2 10 100 10 5 3 vegetables 100 15 20 72 50 75 1.5 2 120 100 10 5 3 ornamentals 50 30 33 72 33 50 1.5 2 10 100 10 5 3 Solo 100 30 40 114 33 50 1.5 2 200 100 10 5 3 Apple 100 30 40 43 50 75 1.5 2 20 100 10 5 3

-1123 b _t ) 23.82 g (0.425 mol) of potassium hydroxide,

23.4 g of 75% phosphoric acid (0.28 mol) in the case of cereals, maize, potatoes and ornamental plants - 57.14 g (0.71 mol) of ammonium nitrate and 21.43 g (0.357 mol) of urea, - for sugar beet, sunflower, vegetables, grapes and apples - 42.86 g (0.53 mole) of ammonium nitrate and 10.71 g (0.18 mole) of urea, and for each of the different types listed in Table 2 below The appropriate amounts of salts and hormones required for plants are dissolved in 400 cm ^{3 of} water. After complete dissolution, add solutions 5-9. of the chelating agent prepared according to any one of Examples 1 to ⁴ is added to 250 g of dry substance (0.375 mol) and, if necessary, the solution is made up to 1 dm ^{3 with} water.

Table 2

Required amount of salt g / 't ³

Hormones mg / 'dm ³

solutions I II. III. ARC. V VI. VII. VIII First Second Third 4th 5th Grain 10 7.2 2.7 1.9 6 21 0.04 0.014 10 150 5 10 5 Maize 20 2.4 6.7 1.9 6 21 0.04 0.014 10 200 3 10 5 Sugar beet 20 2.4 2.7 6.4 6.7 21 0.04 0.014 120 100 3 10 5 Potato 20 2.4 2.7 3.2 6.7 31.5 0.04 0.014 120 100 3 10 5 Sunflower 10 2.4 2.7 1.9 5 21 0.04 0.014 10 100 3 10 5 vegetable 20 2.4 2.7 3.2 5 31.5 0.04 0.014 120 100 3 10 5 ornamentals 10 4.8 4.4 3.2 3.3 21 0.04 0.014 10 100 3 10 5 Solo 20 4.8 5.4 6.4 3.3 21 0.04 0.014 200 100 3 10 5 Apple 20 4.8 5.4 1.9 5 31.5 0.04 0.014 20 100 3 10 5

The salts used are as follows:

I. FeSO ₄ -7H ₂ O

II. CuSO ₄ -5H ₂ O

III. ZnSO ₄ -7H ₂ O arc. h ₃ bo ₃

V. MnSO ₄ -H ₂ O

VI. MgSO ₄ -7H ₂ O

VII. Co (NO ₃ ) ₂ -6H ₂ O VIII. (NH ₄ ) ₆ Mo ₇ O ₂₄ -4H ₂ O

The hormones used are:

1. Gibberell

2. Cytokinin

3. Tiamin

4. Indole Butyric acid

5. Indole acetic acid

Salts required for multicomponent solutions, expressed in moles:

Table 3

Salt content (mol / dm ³ )

viuai I II. III. ARC. V VI. VII. VIII. Grain 0,036 0.03 0,009 0.03 0,035 0,085 0.0001 0.00001 Maize 0,072 0.01 0.023 0.03 0,035 0,085 0.0001 0.00001 Sugar beet 0,072 0.01 0,009 0.1 0,039 0,085 0.0001 0.00001 Potato 0,072 0.01 0,009 0.05 0,039 0.128 0.0001 0.00001 Sunflower 0,036 0.01 0,009 0.03 0.03 0,085 0.0001 0.00001 vegetable 0,072 0.01 0,009 0.05 0.03 0.128 0.0001 0.00001 ornamentals 0,036 0.02 0,015 0.05 0.02 0,085 0.0001 0.00001 Solo 0,072 0.02 0,018 0.1 0.02 0,085 0.0001 0.00001 Apple 0,072 0.02 0,018 0.03 0.03 0.128 0.0001 0.00001

The salts used are as follows: I FeSo ₄ -7H ₂ O V MnSO ₄ H ₂ O II. CuSO ₄ -5H ₂ O VI. MgS ₄ -7H ₂ O III. ZnSO ₄ -7H ₂ O VII. Co (NO ₃ ) ₂ -6H .0 ARC. h ₃ bo ₃ VIII. (NH ₄ ) ₆ Mo ₇ O ₂ > 4

-1 225

192S22

Table 5

The following examples relate to the treatment of individual plants. By "control" it is understood that the plants receive the same treatment as the "treated" plants, except that this preparation does not contain the products according to the invention.

Example 25

Treatment of cereals

ID

(a) Seed dressing is carried out with the multicomponent "cereal solution" (composition shown in row 1 of Table 2) prepared in Example 24 for 5 hours. We sow after drying. 15

b) Bokrododáskor 7 ^dm3 / ha multicomponent "grain was" generated sprayed simultaneously weed control in Example 24.

c) At the same time as the control of fungal diseases at the time of sprouting, based on leaf analysis in the middle of vegetation, the dry matter content of 3 ppm copper 5 l / ha in Example 13, 13 ppm zinc in 2 22 / ha in Example 22 and 3 ppm boron 1 1 / ha 10. The solutions of Example 25 are sprayed onto the leaf.

The results of treatments a) to c) are summarized in Table 4.

Table 4

Area (ha) Average yield Excess crop (t / ha)

Date ___ control treated control treated control value in% Ft / ha

1981 40 40 4.40 5.27 119.8 2871 1981 20 20 4.71 5.07 107.6 1098 1982 5 12 4.09 4.65 113.7 1948

Example 26 45

Corn treatment

(a) Seed dressing is carried out with the multicomponent 5% (v / v) solution of corn (diluted 50 in Table 2, Row 2) prepared in Example 24 for 5 hours. We sow after drying.

b) At the same time as seedbed preparation, the multi-component 55 "corn solution" prepared in Example 24 at a dose of 10 dm ³ / ha is sprayed onto the soil.

c) Sprayed in a 6-leaf condition with a multi-component "corn solution" prepared as in Example 24 at a dose of 10 dm ³ / ha.

d) At the onset of tassel digestion, 4 l / ha of the solution of Example 22 were sprayed onto the leaf at 12 ppm zinc dry weight based on leaf analysis in the middle of vegetation.

The results of treatments a) to d) are summarized in Table 5 above. 65

Average yield (t / ha)

Out Bonuses

Area (ha) Value of Date_Control Managed Control% of Controlled Control

EUR / ha

1980 50 57 5.92 6.45 109.0 1606 1981 5 5 8.30 9.22 111.0 3220 1982 40 40 9.01 9.45 104.9 1548

Example 27

Sunflower treatment

a) Spray in a 4-6 leaf state with the multi-component "sunflower solution" prepared according to Example 24 (row 2 of Table 2) at a dose of 10 dm ³ / ha.

b) Based on leaf analysis of the green buds in the middle of vegetation, a solution of 3 l / ha of Example 13 and 1 l / ha of Example 10 of 15 ppm of skin is sprayed on 4 ppm copper.

The results of treatments a) to b) are summarized in Table 6 below.

Table 6

Date

Area (ha) Value of excess yield in% of treated treated control

EUR / ha

1981 12 12 1.9 2.16 113.6 1800 1982 20 20 2.8 3.02 107.8 2090

Example 28

Sugar beet treatment

(a) Before the rows are closed, 10 dm ³ / ha of the multi-component "sugar beet solution" (composition given in row 3 of Table 2) prepared in Example 24 is sprayed onto a leaf.

(b) 3 l / ha for 18 ppm dry matter in dry matter as determined by leaf analysis in the middle of the vegetation on July 3

2 l / ha for example 10, 0.6% calcium

The solution of Example 11 was sprayed onto the leaf.

The results of treatments a) to b) are summarized in Table 7 below.

Table 7

Date

Area (ha) Value of excess yield in% of treated treated control

EUR / ha

1981 40 40 41.45 44.9 108.3 5058

-1 327

Example 29

Potato treatment

a) At the start of flowering to 10 dm ³ / ha multicomponent "potatoes solution" prepared in Example 24 (given in row 4 of Table 2 composition) is sprayed out.

b) When green berries appear, the multi-component "potato solution" prepared according to Example 24 and 3 l / ha of dry matter in manganese at 9 ppm and 1 l / ha in iron at 18 ppm in dry matter were determined by leaf analysis in the middle of vegetation. The solution of Example 1 is sprayed onto the leaf.

The results of treatments a) to b) are summarized in Table 8 below.

Table 8% of control treated control treated control value in Ft / ha

1982 4 4 35.19 39.91 113.4 14,160

1982 12 10 26.28 28.42 108.1 7490

Example 30

Vegetable management

I. Field cultivation

a) At the same time as the seedbed or seedling bed preparation, the soil is sprayed with the multi-component "vegetable solution" (composition shown in line 6 of Table 2) of 10 dm ³ / ha prepared as in Example 24.

b) At the start of flowering to 10 dm ³ / ha as in Example 24. The multicomponent performed foliar treatment "zöldségoldattal" manufactured.

(c) On ripening of the fruit, based on leaf analysis in the middle of the vegetation, in the dry matter for peas, 0.01 ppm for cobalt 0.51 / ha for example 12, 40 ppm for manganese 2 1 / ha for example 17, pepper 1.1 3 l / ha for calcium and 2 l / ha lb for 0.2% magnesium. The solution of Example 1 is sprayed onto the leaf.

II. in intensive cultivation (foil, greenhouse)

(a) Seed dressing is carried out with the 5% v / v "vegetable solution" (diluted in row 6 of Table 2) of the 5% v / v solution of Example 24 for 24 hours before sowing. We sow after drying.

b) In soil preparation, 30 dm ³ / ha of the multi-component "vegetable solution" prepared in Example 24 is sprayed onto the soil and applied to the depth of cultivation.

c) Before the bloom 10 dm ³ / ha as in Example 24. The multicomponent performed foliar spray produced "vegetable solution".

d) 5 dm ³ / ha of green ripening of the crop, using a multi-component "vegetable solution" prepared according to Example 24 and a leaf analysis of 1.0% calcium in dry matter based on leaf analysis in the middle of vegetation. when sprayed with the solution of Example 14.

In Figures I. a) -c), II. The results of a) -d) and treatments are summarized in Table 9 below.

Table 9

Da'um, plant Area (ha) Average yield (t / ha) Out Bonuses control handled control handled control % of is EUR / ha 19 11 peas 80 20 2.86 3.55 124.1 4154 1981 tomato 4 4 40 43.3 108.1 6,567 19S1 paprika 50 50 8.4 10.75 128.0 17,273

The peas and peppers are arable, refers to the intense nature of tomatoes.

Example 31

Treatment of ornamental plants

I. For field cultivation

a) At the same time as the seedbed or seedling bed preparation, 10 dm ³ / ha of the multicomponent "ornamental plant solution" (composition shown in row 7 of Table 2) prepared according to Example 24 is sprayed and applied.

b) at the start of the intensive growth of 10 dm ³ / ha as in Example 24. The multicomponent performed foliar spray "ornamental solution" prepared.

c) After the first spraying, with the multicomponent "ornamental plant solution" prepared in Example 24 at 5 dm ³ / ha every 3 weeks, spray application is carried out 2 to 4 times, and 20 1 ppm iron in dry matter, based on leaf analysis in the middle of vegetation. For example, with 0.25% magnesium in Example 1, 11 / ha was also sprayed 1-2 times with the solution of Example 16 1-2 times.

II. For intensive cultivation (foil, greenhouse)

a) 23 hours prior to sowing, dressing with 5% v / v multicomponent "ornamental plant solution" (diluted in row 7 of Table 2) prepared in Example 24 for 30 minutes. We sow after drying.

b) In soil preparation, 30 dm ³ / ha is sprayed onto the soil with the multi-component "ornamental plant solution" prepared in Example 24 and applied to the soil tillage depth.

c) At the onset of intensive growth, leaf spraying with the multicomponent "ornamental plant solution" prepared in Example 24 is carried out at 10 dm ³ / ha.

d) After the first spraying, 5 dm ³ / ha of the multi-component "ornamental plant solution" prepared according to Example 24 is sprayed 3-5 times. In the middle of vegetation analysis, 20 ppm iron in dry matter was also sprayed with carnation on a carnation leaf 2-3 times with 3 l / ha of Example 14 and 0.25% magnesium 1 l / ha with Example 16. II. The results of treatments a) to d) are summarized in Table 10.

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Table 10

Date Area (m ² ) Average yield (db / m ² ) Out surplus control handled control handled control % of is EUR / ha 1981 250 250 205 265 129.2 452,000

Example 32 Apples treatment

a) At bud germination, 20 dm ³ / ha of the multi-component "apple solution" (Example 2, line 9) prepared in Example 24 is sprayed onto the soil and applied to 20-40 cm.

b) At the "mouse ear" stage, 10 dm ³ / ha of the multi-component "apple solution" prepared in Example 24 is sprayed onto a leaf.

c) After flowering, in a walnut-sized fruit, 5 dm ³ / ha of the multicomponent "apple solution" prepared according to Example 24 is sprayed on a leaf and based on leaf analysis of 0.6% calcium in the dry matter, 41 / ha (0.25% magnesium) was also sprayed onto the leaf with the 2 l / ha solution of Example 16. The results of treatments (a) to (c) are summarized in Table 11 below.

Table 11

Date Area (ha) Average production (t / ha) surplus Production control handled control handled control % of evaluate EUR / ha 1981 40 40 14.45 18.37 127.1 28,224 1982 1 1 22.3 23.7 106.2 6020

Example 33 Treatment of grapes

(a) The teardrop multi-component "grape solution" (composition given in line 8 of Table 2) of 15 dm ³ / ha, as exemplified in Example 24, is sprayed onto the soil and applied at a depth of 20-40 cm.

b) Before flowering, 10 dm ³ / ha of the multi-component "grape solution" prepared in Example 24 is sprayed onto the leaf.

c) after the first spray 3 weeks 5 dm ³ / ha multicomponent "grape solution" prepared in Example 24 is sprayed onto the leaves zöldérésig. Based on leaf analysis in the middle of vegetation, the solution of 18 ppm in dry matter was 11 / ha for Example 10, 0.2% magnesium for 21 / ha for Example 16, 38 ppm for iron, 31 / ha for Example 14. spray on leaf.

The results of treatments (a) to (c) are summarized in Table 12 below

Table 12

Date Area (ha) Average yield (t / ha) Out surplus control handled control handled control % of is EUR / ha 1981 4 40 2.51 3.09 123.1 4856 1982 3 3 3.47 4.41 127 7568

Example 34

Comparison of the metal binding capacity of the chelating agent prepared according to the invention with known chelating agents on different soils.

The tests were carried out with chelating agents: tartaric acid, ethylenediaminetetraacetic acid (EDTA), a mixture of ethylenediaminetetraacetic acid and potassium chloride (EDTA + KCl) and the chelating agent prepared according to the invention in Example 5.

A 0.05 molar solution of chelating agents was used to extrude various soils, and the nutrient content of the resulting soil filtrates was then determined on a Contiflo automated instrument to determine what and how much nutrient is bound to each chelating agent. The results are shown in Table 13 below.

Table 13

Soil type element Chelating agents ppm Example 5 Tartaric acid EDTA

First mg Zn Cu 70.3 0.7 2.0 423 1.2 2.3 238 0.3 0.7 165 0.2 2.0 Second mg 200 286 138 111 Mn 209 298 98 238 Third mg 131 372 221 123 Zn 3.5 6.5 2 2 4th mg 30 335 41 40 Cu 0.7 2.9 0.7 2.3 5th mg 168 360 224 144 6th mg 224 277 96.7 172 Zn 1 4.7 0.6 1.8 Cu 2.1 3.7 0.3 2.1 7th mg 212 283 84.6 124 Zn 5.2 5.5 0.2 0.2 Cu 2.7 3.7 0.1 2.4

Soil types: 1. Pseudoglee brown forest soil

2. Ramman brown forest soil

3. Carbonate sand

4. Sour sand

5. Meadow Solonec

6. Meadow Chernozem

7. Lime Chernozem

Example 35

Comparative study of solutions of chelating agents and lignosulfonic acid chelating agents prepared by the process of the present invention in different plant cultures.

(a) Winter wheat

Effect of a solution containing copper salt and copper chelate on the copper content of winter wheat (dose: 5 dm ³ / ha)

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Table 14

Treatment Cu (ppm) control 7.3 Example 13 120 Copper chelate with lignosulfonic acid 68.8

(b) Maize

Effect of solution containing magnesium salt and magnesium chelate on plant magnesium content (dose: 8 dm ³ / ha)

Table 15

Treatment Mg (%) control 0.46 Example 16 .486 Lignoszulfonsavas 0.431 for magnesium

c) Soya

Effect of solution containing magnesium salt and magnesium chelate on plant magnesium content (dose: 7 dm ³ / ha)

Table 16

Treatment Mg (%) control 0.854 Example 16 0.959 Magnesium chelate of lignosulfonic acid 0.908

Example 36

Effect of Multicomponent Vegetable Nutrient on Sugar Beet Sugar Content and Sugar Yield

A small plot experiment was carried out with the multicomponent plant medium prepared according to Example 24 and described in line 6 of Table 1. The results are shown in Table 17 below.

Table 17

Dose 1 / ha white Sugar % White sugar yield t / ha 12.7 9.18 7.609 10.5 9.00 7.362 8.9 9.93 8.025 7.5 9.59 7.780 6.4 9.12 7.296 control 8.52 6.713

Example 37

Effect of multicomponent plant nutrient solution on sugar beet quality and yield

Large-plot experiments were carried out with multicomponent plant media prepared according to Example 24 and described in Table 1, line 6.

Treatment 1: 10 dm ³ / ha sprayed on June 13;

Treatment 2: 5 dm ³ / ha sprayed on June 13;

dm ³ / ha sprayed on August 5;

Treatment 3: 10 dm ³ / 'if sprayed on August 5th. The result of the treatment is given in Table 18 below.

Table 18

Treatments Digestio Root- White- White Sugar- % production t / ha sugar % yield t / ha First 17.97 59.78 9.59 5.73 18.13 58.30 9.82 5.72 Third 18.37 60.40 9.53 5.75 control 17.80 57.50 9.51 5.50

The data in the table shows that the treatment will result in more production, better white sugar% and better sugar yield.

Example 38

Effect of multicomponent plant nutrient solution on sunflower

Small-plot experiments were carried out with a multicomponent plant medium prepared according to Example 24 and described in Row 5 of Table 1, at 7 dm ³ / ha. The results are shown in pages 19-21 below. in the tables.

Table 19 Treatment Yield t / ha control Handled 2.90 2.95 Table 20 stem Thickness and plate diameter at harvest T hey Stem thickness Plate diameter (mm) (cm)

Control 21.50 18.25

Treated 21.75 18.375

Table 21

Infection rate at harvest%

Treatment First Repeat Second Third control 30.0 36.6 31.1 Handled 27.6 35.4 30.3

It can be seen from the tables that the application yields an increase in yield. Treated sunflower is also less contaminated, so the compositions also have a disease prevention effect.

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Claims (2)

With 1.3 to 3 mol / dm ³ , preferably 1.8 to 2.2 mol / dm ^{3 of} aqueous ammonium hydroxide and 1.3 to ³ mol / dm ^3, preferably 1.8 to 2.2 mol / dm ^{3 of} aqueous formaldehyde solution 60 The reaction mixture is diluted with water to a concentration of 2.2-2.8 mol / dm ³ of p-phenolsulfonate in water and stirred at 80-110 ° C until pH 9- The impurity is removed by settling and the resulting aqueous solution is reacted, if desired, with a salt of cobalt, copper, iron, magnesium, manganese, or zinc to form a chelate complex. The process according to claim 1, wherein the metal chelates of the formulas (VI), (VII), (VIII) and (IX) are those wherein M is an alkali metal or ammonium, Me is cobalt, copper, iron, magnesium, manganese or zinc; 2 to 5 - for the preparation of mixtures thereof or, where appropriate, aqueous solutions containing a chelating agent, characterized in that the chelating agent prepared according to claim 1 has a concentration of 0.1-0.4 mol / dm ³ or 0.08-0 , 09 mol / dm ³ cobalt nitrate or 0.6 0.7 mol / dm ³ copper sulphate or 0.7-0.8 mol / dm ³ iron sulphate or 1.6-1.7 mol / dm ³ magnesium sulphate, or It is added to an aqueous solution containing 0.5-0.6 mol / dm ³ manganese sulfate or 0.4-0.5 mol / dm ³ zinc sulfate and, if desired, the metal chelates thus obtained are separated from the aqueous solution. 3. One or more metal chelates and one or more micronutrients such as cobalt, copper, iron, 5 manganese, zinc, and / or one or more macronutrients such as magnesium, potassium and / or one or more macronutrients such as a plant nutrient solution containing potassium, nitrogen, phosphorus and optionally chelating agent and optionally one or more plant hormone I, characterized in that from 0.04 to 0.40 mol / dm ³ , based on 45 to 55% by weight of dry matter; 3% by weight of the 2-hydroxy-5-sulfobenzylamine salt of the formula I, 1-3% by weight of the 2-hydroxy-5-sulfo-1,3-xylene diamine salt of the formula II, 16 - 22% by weight of the bis - [(2-hydroxy-5-sulfo) benzyl] -amine salt of the formula III, 5-10% by weight of the tris [(2-hydroxy-5-sulfo-) benzyl] amine salt, 16-22% by weight of poly {[(2-hydroxy-5-sulfo) -1,3-xyleneylene] salt of formula V and 2-3% by weight of M ₂ SO ₄ - in these formulas, M is an alkali an ion or ammonium ion and n is 2-5 - chelating agent and 0-0.90 mol / dm ³ potassium hydroxide in chelate form and 0-0.6 mol / dm ³ phosphoric acid, 0-5.4 mol / dm ³ ammonium nitrate in ionic form and 0-4.3 mol / dm ³ urea, 0-0.7 mol / dm ³ orthoboric acid in ionic form 0-3.8 mol / dm ³ calcium carbonate in ionic form 0-0.09 mol / dm ³ cobalt nitrates in chelate form, 0-0.7 mol / dm ³ copper sulphate, 35-45% ionic and 55-65% in chelate 0-0.8 mol / dm ³ ferric sulphate , 43-53% ionic and 47-57% chelated, 0-1.7 mol / dm ³ magnesium sulfate 88-92% ionic and 8-12% chelated 0-0.6 mol / dm ^{3 of} manganese sulfate in the form of 25-35% ionic and 65-75% chelated form, 0-0.03 mol / dm ³ ammonium molybdenate in the ionic form 0- 2.6 mol / dm ^{3 of} biammonium hydrogen phosphate in ionic form, 0-0.5 mol / dm ^{3 of} zinc sulphate in 55-65% ionic and 35-45% in chelated 0-332 mol / dm ^{3 of} ammonium sulfate in ionic form, 0-200 mg / dm ^{3 of} gibberellin, 0-200 mg / dm ^{3 of} cytokinin, 0-3,5 mg / dm ^{3 of} thiamine, 0 to 11 mg / dm 3 ³ indolvajsavat and 0-7 mg / dm ³ indoleacetic acid comprises an aqueous solution, and at least one plant nutrient solution 0 mol / dm is present in one of the components listed from ^three different amounts. A process for preparing a 2-hydroxy-5-sulfobenzylamine salt of formula I, a 2-hydroxy-5-sulfo-1,3-xylene diamine salt of formula II, a bis [III] compound [ (2-hydroxy-5-sulfo) benzyl] -amine salt, tris [(2-hydroxy-5-sulfo) benzyl] -amine salt of formula (IV), poly {[(2) -hydroxy-5-sulfo) 1,3-xyleneylene] -amine} salt and M ₂ SO ₄ - in these formulas M is an alkali metal or ammonium and n is 2 to 5 - chelating agent or an aqueous solution thereof and their cobalt, for the preparation of chelate complexes with copper, iron, magnesium, manganese or zinc salts, characterized in that 1 mole of phenol is sulfonated with 1.05 to 1.2 moles of sulfuric acid at a temperature between 110 ° C and 120 ° C in a known manner; phenol sulfonic acid is neutralized with 1 to 1.5 moles of alkali metal hydroxide or ammonium hydroxide, and the resulting p-phenol sulfonate is optionally isolated from the reaction mixture. after - 2 pages with 9 formulas Responsible for publishing: Director of Economic and Legal Publishing House 880001 - Realco, Budapest, Chief Executive Officer: Péter Bereny