RU2407287C2 - Method of producing highly concetrated solution of mineral fertiliser for seed presowing treatment - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture. Aqueous solution of mineral fertiliser for seed presowing treatment based on macro- and micro-elements with a disodium salt of ethylenediaminetetraacetic acid is prepared by mixing solutions which are diluted with water. Solution No. 1 contains salts in the following concentration: phosphorus mineral salts (P₂O₅) 0.68-1.0%; potassium (in form of K₂O) 6.2-10.7%; boron 0.27-1.013%; selenium 0.016-0.030%; molybdenum 0.26-1.09%; vanadium 0.038-0.152%; chromium 0.037-0.154%; and solution No. 2 contains salts in the following concentration: copper 2.657-3.875%; zinc 2.769-3.461%; magnesium 1.200-1.407%; iron (III) 0.198-0.521%; cobalt 0.128-0.365%; nickel 0.018-0.09%; lithium 0.047-0.142%; manganese 0.278-0.377%.

EFFECT: improved application properties of the composition for treating seeds by obtaining a highly-concentrated solution having balanced micro- and macro-elements.

4 cl, 4 ex

Description

The invention relates to agriculture, in particular to fertilizers that increase the germination of seeds, resistance to diseases, which helps to increase the productivity of crops.

Known methods for treating seeds with solutions of mineral salts, for example, a solution of the natural mineral bischofite (US Pat. RF No. 2280345, MKP A01C 1/00, publ. 07/27/2007, US Pat. RF No. 2092002, MKP A01C 1/00, publ. 10.10. 1997, Patent of the Russian Federation No. 2160521, MKP A01C 1/00, publ. 12/20/2000) The disadvantage of this method is the unbalanced ratio of micro and macro elements.

Known methods of treating seeds with organomineral formulations, for example Pat. RF №2002118471, MKP C05F 11/02, publ. 2004.01.20. The composition includes mineral components containing nitrogen, phosphorus, potassium, boron, manganese, zinc, copper, molybdenum, cobalt and a humate-containing organic component, where urea phosphate is used as the phosphorus-containing component, potassium hydroxide is used as the potassium-containing component, and as humate-containing organic component - 2-5% aqueous humate solution in the following ratio of ingredients, wt.%:

Nitrogen 7.5-9.0 Phosphorus (in terms of P ₂ O ₅ ) 3.0-6.0 Potassium (in terms of K ₂ O) 5.0-6.0 Boron 0.01-0.09 Manganese (in terms of MnO ₂ ) 0.18-0.20 Zinc 0,045-0,05 Copper 0.03-0.045 Molybdenum 0.02-0.03 Cobalt 0.04-0.06 2-5% humate solution 45.0-47.0

Known highly concentrated liquid organic fertilizer (US Pat. RF No. 2006127950 MKP C05F 11 | / 00, publ. 10.02.2008, Bull. No. 4), containing ingredients in the following ranges, mg / l:

nitrogen from 80 to 5000

phosphorus from 30 to 2300

potassium from 50 to 2300

iron from 14 to 2500

copper from 3 to 330

zinc from 12 to 530

cobalt from 2 to 85

manganese from 15 to 300

magnesium from 15 to 120

molybdenum from 10 to 800

vanadium from 1 to 560

boron from 1 to 70

sulfur from 1 to 70

sodium from 1 to 100

selenium from 1 to 100

iodine from 1 to 50

epibrosinalide from 0.05 to 0.25

hydroxycinnamic acids from 0.02 to 0.1

auxins from 0.001 to 0.1

heteroauxins from 0.001 to 0.1

gebirilins from 0.001 to 0.1

polysaccharides from 20 to 700

useful soil microflora from 10 ⁵ to 2 · 10 ⁹

the rest is water,

wherein

organic matter from 500 to 8700

the sum of humic and fulvic acids from 500 to 8500

the sum of proteins, pectins and amino acids from 200 to 2500

The disadvantage of this method is the low concentration of the solution, which leads to large volumes during transportation of solutions.

The known method (Pat. RF №2003129501, MKP G01R 31/20, publ. 10.04.2005, Bull. No. 10) for producing polymers formed from dibasic carboxylic acids containing repeating polymer units described by the formula

where Y is Fe, Mn, Mg, Zn, Cu, Ni, Co, Mo, V, and Ca. The product is a fertilizer that can be used in conjunction with fertilizers, including nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, molybdenum, as well as fertilizers containing trace elements and oxides, sulfates, chlorides and their chelates. The mixture can be used in the form of a dispersion or, after co-grinding, in the form of a powder for application to plant seeds. The disadvantages of the method are the time-consuming process of obtaining the polymer, an additional stage of grinding the fertilizer, in the case of dispersion, the complexity of uniformly applying the dispersion to the surface of the seeds.

Closest to the claimed technical essence and the achieved result is a Method for producing transparent liquid complex fertilizers [Pat RF №2167133, MKP С05В 7/00, publ. 2001.05.20].

The essence of the method for producing transparent liquid complex fertilizers (PLCA) is to neutralize extraction phosphoric acid (EPA) with a mass fraction of P ₂ O _{5 of} 50-52% potassium-containing reagent with the introduction of sequestering agent in the amount of 0.5-5.0% before neutralization in EPA by weight of PZHKU and the subsequent introduction of macro- and microelements. Organic compounds, for example, EDTA, are used as a sequestering agent, while micronutrients are introduced into the composition of PLCU in the form of complexonates with compounds selected from the same group.

The disadvantage of this method is the precipitation of phosphorus salts of trace elements in the sediment at a molar ratio of salts of trace elements more than 4.0.

The technical result of the present invention is to improve the consumer properties of the composition for treating plant seeds by obtaining a highly concentrated solution balanced by micro and macro elements.

The technical result is achieved in that the working solution is prepared by mixing solutions 1 and 2, which are diluted with water.

Solution 1 contains salts in a concentration of:

Mineral salts of phosphorus (P ₂ O ₅ ) 0.68-1.0% Potassium (in the form of K ₂ O) 6.2-10.7% Boron 0.27-1.013% Selenium 0.016-0.030% Molybdenum 0.26-1.09% Vanadium 0.038-0.152% Chromium 0.037-0.154%

Solution 2 contains salts in a concentration of:

Copper 2.657-3.875% Zinc 2,769-3,461% Magnesium 1,200-1,407% Iron (III) 0.198-0.521% Cobalt 0.128-0.365% Nickel 0.018-0.09% Lithium 0.047-0.142% Manganese 0.278-0.377%

In solution 2, the salts are contained in a molar ratio of divalent metals and Fe (III): disodium dihydrate of ethylenediaminetetraacetic acid = (43.8-63.4): 1.

Dissolution of salts is carried out at a temperature of 45-95 ° C.

Before seed treatment, aqueous solutions are diluted with water in a ratio of 1: (5-10).

Example 1

Preparation of solution No. 1 for pre-sowing seed treatment. Trilon B (ethylenediaminetetraacetic acid disodium salt dihydrate) 170 g, potassium dichromate 12 g, boric acid 160 g, sodium tetraborate 180 g, sodium selenite pentahydrate 2 g, ammonium metavanadate 30 g, potassium dihydroorthophosphate 75 g, potassium ammonium paramolybdate 517 g. In solution, the salt concentration is:

Mineral salts of phosphorus (P ₂ O ₅ ) 0.68% Potassium (in the form of K ₂ O) 6.2% Boron 0.42% Selenium 0.021% Molybdenum 1.09% Vanadium 0.114% Chromium 0.037%

Salts are dissolved in 6-7 l of water at a temperature of 45 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Solution No. 2

Trilon B 150.5 g, iron (III) chloride hexahydrate 110 g, cobalt sulfate heptahydrate 150 g, copper sulfate pentahydrate 1200 g, zinc sulfate heptahydrate 1400 g, magnesium sulfate heptahydrate 1600 g, nickel sulfate heptahydrate 10.0 g, lithium chloride 33 g, manganese sulfate pentahydrate 140 g,

Copper 2.657% Zinc 2.769% Magnesium 1.373% Iron (III) 0.198% Cobalt 0.274% Lithium 0.047% Manganese 0.278% Nickel 0.018%

In solution 2, salts are contained in a molar ratio of divalent metals and Fe (III): disodium dihydrate of ethylenediaminetetraacetic acid = 43.8: 1.

Salts are dissolved in 6-7 l of water at a temperature of 45 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Before seed treatment, solution No. 1 is diluted with 50-60 liters of water, solution No. 2 is poured and the mixture is brought with water to a volume of 100 liters. The prepared mixture is used to process 10 tons of seeds through standard dressers type PS-10.

Example 2

Preparation of highly concentrated solution No. 1 for pre-sowing seed treatment.

Trilon B (ethylenediaminetetraacetic acid disodium salt dihydrate) 170 g, potassium dichromate 35 g, boric acid 430 g, sodium tetraborate 365 g, sodium selenite pentahydrate 2.9 g, ammonium metavanadate 15 g, potassium ammonium dihydroorthophosphate 100 g, paramolybdate potassium chloride 900 g. In solution, the salt concentration is:

Mineral salts of phosphorus (P ₂ O ₅ ) 0.907% Potassium (in the form of K ₂ O) 10.7% Boron 1.013% Selenium 0.030% Molybdenum 0.26% Vanadium 0.057% Chromium 0.108%

Salts are dissolved in 6-7 l of water at a temperature of 70 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Solution No. 2

Trilon B 160 g, iron (III) chloride hexahydrate 220 g, cobalt sulfate heptahydrate 120 g, copper sulfate pentahydrate 1500 g, zinc sulfate heptahydrate 1460 g, magnesium sulfate heptahydrate 1399 g, nickel sulfate heptahydrate 10 g, lithium chloride 55 g 190 g pentahydrate

Copper 3.322% Zinc 2,888% Magnesium 1,200% Iron (III) 0.395% Cobalt 0.219% Nickel 0.018% Lithium 0.078% Manganese 0.377%

In solution No. 2, salts are contained in a molar ratio of divalent metals and Fe (III): disodium salt dihydrate of ethylenediaminetetraacetic acid = 43.8: 1.

Salts are dissolved in 6-7 l of water at a temperature of 70 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Before seed treatment, solution No. 1 is diluted with 20-30 liters of water, solution No. 2 is poured and the mixture is brought with water to a volume of 50 liters. The prepared mixture is used to process 10 tons of seeds through standard dressers type PS-10.

Example 3

Preparation of highly concentrated solution No. 1 for pre-sowing seed treatment.

Trilon B (ethylenediaminetetraacetic acid disodium salt dihydrate) 150 g, potassium dichromate 30 g, boric acid 185 g, sodium tetraborate 200 g, sodium selenite pentahydrate 1.5 g, ammonium metavanadate 10 g, potassium dihydroorthophosphate 110 g, ammonium paramolybdophosphate 110 g , potassium chloride 898 g. In solution, the concentration of salts is:

Mineral salts of phosphorus (P ₂ O ₅ ) 1,0% Potassium (in the form of K ₂ O) 10.7% Boron 0.478% Selenium 0.016% Molybdenum 0.378% Vanadium 0.038% Chromium 0,092%

Salts are dissolved in 6-7 l of water at a temperature of 70 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Solution No. 2

Trilon B 130 g, iron (III) chloride hexahydrate 200 g, cobalt sulfate heptahydrate 70 g, copper sulfate heptahydrate 1550 g, zinc sulfate heptahydrate 1750 g, magnesium sulfate heptahydrate 1640 g, nickel sulfate heptahydrate 10 g, lithium chloride 50 g 140 g pentahydrate

Copper 3,432% Zinc 3,461% Magnesium 1,407% Iron (III) 0.359% Cobalt 0.128% Nickel 0.018% Lithium 0.071% Manganese 0.278%

In solution 2, salts are contained in a molar ratio of divalent metals and Fe (III): disodium dihydrate of ethylenediaminetetraacetic acid = 58.8: 1.

Salts are dissolved in 6-7 l of water at a temperature of 70 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Before seed treatment, solution No. 1 is diluted with 20-30 liters of water, solution No. 2 is poured and the mixture is brought with water to a volume of 50 liters. The prepared mixture is used for processing 10 tons through standard dressers of the PS-10 type.

Example 4

Preparation of highly concentrated solution No. 1

Trilon B (ethylenediaminetetraacetic acid disodium salt dihydrate) 150 g, potassium dichromate 50 g, boric acid 119 g, sodium tetraborate 90 g, sodium selenite pentahydrate 1.5 g, ammonium metavanadate 40 g, potassium dihydroorthophosphate 110 g, paramolybdate 80 g, ammonium paramolybdate potassium chloride 900 g. In solution, the salt concentration is:

Mineral salts of phosphorus (P ₂ O ₅ ) 1,0% Potassium (in the form of K ₂ O) 6.6% Boron 0.27% Selenium 0.016% Molybdenum 0.378% Vanadium 0.152% Chromium 0.154%

Salts are dissolved in 6-7 l of water at a temperature of 95 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Solution No. 2

Trilon B 130.8 g, iron (III) chloride hexahydrate 290 g, cobalt sulfate heptahydrate 200 g, copper sulfate pentahydrate 1750 g, zinc sulfate heptahydrate 1750 g, magnesium sulfate heptahydrate 1640 g, nickel sulfate heptahydrate 49.5 g, lithium 100 g, manganese sulfate pentahydrate 140 g.

Copper 3.875% Zinc 3,461% Magnesium 1,407% Iron (III) 0.521% Cobalt 0.365% Nickel 0.09% Lithium 0.142% Manganese 0.278%

In a solution of 2 salts are contained in a molar ratio of divalent metals: disodium dihydrate of ethylenediaminetetraacetic acid = 63.4: 1.

Salts are dissolved in 6-7 l of water at a temperature of 70 ° C, after dissolving the salts, the volume of the solution is adjusted to 10 l.

Before seed treatment, solution No. 1 is diluted with 50-60 liters of water, solution No. 2 is poured and the mixture is brought with water to a volume of 100 liters. The prepared mixture is used to process 10 tons of seeds through standard dressers type PS-10.

Claims (4)

A method of obtaining a highly concentrated aqueous solution of mineral fertilizer for pre-sowing seed treatment based on salts of macro- and microelements with disodium salt of ethylenediaminetetraacetic acid, characterized in that the working solution is prepared by mixing the following solutions, which are diluted with water, while solution No. 1 contains salts in concentration,% :
Mineral salts of phosphorus (P ₂ O ₅ ) 0.68-1.0 Potassium (in the form of K ₂ O) 6.2-10.7 Boron 0.27-1.013 Selenium 0.016-0.030 Molybdenum 0.26-1.09 Vanadium 0.038-0.152 Chromium 0,037-0,154,
and solution No. 2 will restrain salts in concentration,%:
Copper 2,657-3,875 Zinc 2,769-3,461 Magnesium 1,200-1,407 Iron (III) 0.198-0.521 Cobalt 0.128-0.365 Nickel 0.018-0.09 Lithium 0,047-0,142 Manganese 0.278-0.377 2. The method according to claim 1, characterized in that in solution No. 2 the salts are contained in a molar ratio of divalent metals and Fe (III): disodium dihydrate of ethylenediaminetetraacetic acid = (43.8-63.4): 1. 3. The method according to claim 1, characterized in that the dissolution of salts is carried out at a temperature of 45-95 ° C. 4. The method according to claim 1, characterized in that prior to seed treatment, aqueous solutions are diluted with water in a ratio of 1: (5-10).