CN102249814A - Preparation method of liquid fertilizer with humic acid-urea complex as matrix - Google Patents
Preparation method of liquid fertilizer with humic acid-urea complex as matrix Download PDFInfo
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Abstract
The invention provides a preparation method of a liquid fertilizer with a humic acid-urea complex as the matrix. According to the preparation method, a humic acid-urea complex aqueous solution is firstly prepared by using phosphate as an activator and using humic acid raw material coals and urea as the main raw materials, and then the humic acid-urea complex aqueous solution undergoes a reaction with other raw materials to prepare the humic acid-urea complex liquid fertilizer. The invention has the following advantages: the used humic acid raw material coals (weathered coal, brown coal and peat) are rich in resources, cheap and easily available; the preparation method provided by the invention has characteristics of short production process flow, simple equipment operation, no discharge of pollutants during the production process, no environmental pollution and low production cost, and is suitable for large-scale industrial production; the product provided by the invention has comprehensive nutrient elements and high content of water-soluble humic acid, is easy for crops to absorb, has conspicuous fertilizer effects, can be used to improve the soil structure, stimulate crops to absorb nutrients, promote the growth of crops, raise the drought resistance and stress resistance of crops, increase the output and enhance the crop quality.
Description
Technical field
The invention belongs to the slow release fertilizer technical field, particularly relating to the complex of humic acids and urea is matrix, the method for the liquid fertilizer of preparation Different Nutrition composition proportion.
Background technology
In the crop growthing development whole process, the base fertilizer of using can not satisfy the nutritive ingredient of its demand fully, and the nutrition phenomenon often appears lacking in eugonic fruiting period, and this just requires to use to topdress.Applying of humic acid fertilizer allows people recognize for many years, and Remixed humic acid fertilizer is a kind of green non-pollution ecological fertilizer, and it can be improved the soil, and increases soil aggregate, improves the soil microorganisms ecotope; Improve fertilizer efficiency and utilization ratio, stimulate crop absorption nutrition and growth, improve farm crop drought resisting, anti-adversity; Make pesticide synergistic, reduce toxicity; Make farm crop increase output, improve quality.So humic acid solution (cream) body dashes and executes, drip irrigation fertilizer should be to use the first-selection of topdressing.
Liquid fertilizer is extensively promoted the use of in developed country, liquid fertilizer amount produced in USA accounts for 15% of compound manure, Britain, Germany, Russia and Mexico etc. are the various liquid fertilizers of all a large amount of uses also, and states such as Malaysia, Japan have used the humic acid liquid composite fertilizer in a large number.Domestic production and the starting of use liquid fertilizer are than later, and some chemical fertilizers production enterprises, scientific research institutions have carried out development and application research to liquid fertilizer, the multi-nutrient element liquid compound fertilizer that released one after another, organic liquid compound fertilizer etc.Humic acid solution (cream) body compound fertilizer also is studied exploitation and produces, and the humic acids lotion of producing as the happy together fertile industry in general day of Liaoning company dashes fertilising, N+P
2O
5+ K
2O 〉=20%, fulvo acid 〉=8%, organic 〉=15% (Xiang Guodong etc., humic acids, 2007,5,31-35).The humic acid fertilizer of Xianfeng Composite Fertilizer Co., Ltd., Shandong Prov.'s development and production, humic acids, nitrogen, phosphorus, potassium, trace element, conditioning agent are respectively 15-20%, 20-30%, 20-30%, 10-15%, 20-34%, 1-5% (CN 01135269.8).Kunming appearance of the city mcroorganism chemical industry company limited is the instant fertilizer of lotion that matrix is produced with the humic-acid kind soaking object, is that humic acids and water are made slurry, and adding nitrogen, phosphorus, potassic fertilizer grind to form paste, N+P
2O
5+ K
2O 〉=40%, humic acids＞8% (CN 03117459.0).Shenyang City's Guo ancestor perseverance has been invented a kind of water-soluble humic acid paste-form fertilizer and working method thereof, is with water, weathered coal, sodium hydroxide and urea reacting by heating together, adds Repone K and other nitrogenous fertilizer again and is mixed and made into paste-form fertilizer, N+P
2O
5+ K
2O 〉=25%, or 20%, humic acids＞8% (CN 200610046340.3).The preparation method of the humic acid solution that above document and patent provide (cream) body flushing and spreading fertilizer exists the technological process of production longer, troublesome poeration, and defective such as production cost is higher, some also has environmental pollution.
Summary of the invention
For overcoming the defective of above-mentioned document and patent, the invention provides a kind of is matrix with the complex of humic acids and urea, can prepare the method for the liquid fertilizer of Different Nutrition composition proportion.This method is to make activator with phosphoric acid salt, is main raw material with humic acid material coal and urea, makes the complex of humic acids and urea aqueous solution earlier, makes the complex of humic acids and urea liquid fertilizer with other raw material reactions again.
Technical scheme of the present invention is as follows: with 100-600 part water in reactor, stir and add 100-400 part urea down, be warming up to 40-100 ℃, after treating that urea dissolves fully, add 100-500 part humic acid material coal, stirring reaction 10 minutes, add 0-200 part phosphoric acid salt, continue reaction 10-120 minute, solid-liquid separation is heated to 80-90 ℃ with solution, add 10-50 part complexing agent then, 5-20 part zinc salt, 5-15 part ferrous salt, 5-30 part boron compound, 0-500 part sylvite, continue reaction 10-60 minute, cooling makes the complex of humic acids and urea liquid fertilizer.
Humic acid material coal described in above-mentioned technical scheme is any or multiple combination in weathered coal, brown coal, the peat, and water content is 0-40%, and humic acids content 〉=20% was pulverized the 30-200 mesh sieve.
Water described in the scheme is pure water, softening water, tap water or natural water.
Urea described in the scheme, phosphoric acid salt, sylvite are industrial goods or agricultural supplie.
Phosphoric acid salt described in the scheme is various water-soluble phosphates, preferably phosphoric acid potassium, ammonium phosphate, sodium phosphate etc.
Phosphoric acid salt described in the scheme, when consumption weight is 0 part, the weight ratio of urea and humic acid material coal＞2: 1; When consumption weight greater than 0 part during smaller or equal to 100 parts, the weight ratio of urea and humic acid material coal≤2: 1.
Complexing agent optimization citric acid described in the scheme, tartrate, ethylenediamine tetraacetic acid (EDTA), disodium ethylene diamine tetraacetate etc.
Zinc salt described in the scheme is various water-soluble zinc salts, preferably sulfuric acid zinc, zinc chloride, zinc nitrate etc.
Ferrous salt described in the scheme is various water-soluble ferrous salts, and preferably sulfuric acid is ferrous, ferrous ammonium sulphate, chlorination industry iron etc.
Boron compound described in the scheme is various water-soluble boron compounds, preferred borax, boric acid, boron trifluoride etc.
Sylvite described in the scheme is various water-soluble sylvite, preferred Repone K, vitriolate of tartar, saltpetre etc.
It is high, medium and low series product that method provided by the invention can be produced total nutrition branch concentration, the quality and technical index of each class following (in, micronutrient levels do not list):
High density (total nutrition branch 〉=35%) is: N 〉=13%, P
2O
5〉=6%, K
2O 〉=16%, fulvo acid 〉=8%, organic 〉=15%, pH=6.5-6.8;
Middle concentration (total nutrition branch 〉=25%) is: N 〉=10%, P
2O
5〉=4%, K
2O 〉=11%, fulvo acid 〉=10%, organic 〉=15%, pH=6.1-6.5;
Lower concentration (total nutrition branch 〉=15%) is: N 〉=7%, P
2O
5〉=4%, K
2O 〉=4%, fulvo acid 〉=12%, organic 〉=20%, pH=5.3-5.8.
Provided by the invention is matrix with the complex of humic acids and urea, the liquid fertilizer of the Different Nutrition composition proportion of preparation, and detected result is as follows: fertilizer, detected result is as follows:
N:7.1-19.5%; P
2O
5: 4.2-6.4%; K
2O:3.9-16.4%; Fulvo acid: 7.6-13.9%; Organic: 12.0-18.5%; PH=5.3-6.8.
The present invention compares with existing method, has following advantage:
1. produce complex of humic acids and urea and liquid fertilizer by humic acid material coal and urea reaction, raw material weathered coal, brown coal, peat aboundresources, cheap and easy to get, the technological process of production is brief, and production unit is easy to the continuous industry operation, and is easy and simple to handle; The product good water solubility, production cost is low, realizes " zero release " that non-environmental-pollution is applicable to large-scale industrial production;
2. phosphoric acid salt is made activator, produces complex of humic acids and urea and liquid fertilizer with humic acid material coal and urea, can improve the fulvo acid extraction yield, reduces production costs; Complex of humic acids and urea is more stable, slowly releases urea, and utilization rate of nitrogen fertilizer improves 7-23%, and fertilizer efficiency period prolongs 50 days at least; Complex of humic acids and urea can suppress humic acids by soil fixing, and phosphorus humic acid phosphorus hydrochlorate mixture can suppress phosphorus fixing in soil simultaneously;
3. the complex of humic acids and urea liquid fertilizer produced of the present invention, nutritive element is complete, active constituent content is high, and contains water-soluble chelated microelements, is suitable for crop absorption, and fertilizer efficiency is remarkable;
4. the complex of humic acids and urea liquid fertilizer produced of the present invention, fulvo acid content height, the structure of improving the soil, stimulate crop to absorb the nutrition branch, promote crop growth, improve farm crop drought resisting, anti-adversity, make farm crop increase output, improve crop quality.
Embodiment
Embodiment 1: get 544 parts of water in reactor, add 200 parts of urea, 85 ℃ of left and right sides stirring and dissolving, add 246 parts of weathered coals and (contain humic acids 44%, moisture 26.5%), reacted 10 minutes, add 90 parts of monoammonium phosphates, about 95 ℃, continue reaction 40 minutes, solid-liquid separation, solution are heated to about 80 ℃, add 20 parts of citric acids, 12 parts of Zinc Sulphate Heptahydrates, 8.5 part iron vitriol, 12 parts of boraxs, 70 parts of Repone K, continue reaction 30 minutes, cooling makes the complex of humic acids and urea liquid fertilizer, the product analysis result: fulvo acid 8.7%, nitrogen 8.2%, P
2O
55.3%, potassium 4.9%, organic matter 12.0%, pH=5.6.
Embodiment 2: get 550 parts of water in reactor, add 260 parts of urea, 80 ℃ of left and right sides stirring and dissolving, add 250 parts of weathered coals and (contain humic acids 44%, moisture 26.5%), reacted 10 minutes, add 90 parts of monoammonium phosphates, about 95 ℃, continue reaction 50 minutes, solid-liquid separation, solution are heated to about 80 ℃, add 20 parts of citric acids, 12 parts of Zinc Sulphate Heptahydrates, 8.5 part iron vitriol, 12 parts of boraxs, 185 parts of Repone K, continue reaction 35 minutes, cooling makes the complex of humic acids and urea liquid fertilizer, the product analysis result: fulvo acid 8.3%, nitrogen 9.9%, P
2O
54.4%, potassium 9.8%, organic matter 14.5%, pH=6.3.
Embodiment 3: get 550 parts of water in reactor, add 400 parts of urea, 80 ℃ of left and right sides stirring and dissolving, add 250 parts of weathered coals and (contain humic acids 69.3%, moisture 27.8%), reacted 10 minutes, add 140 parts of monoammonium phosphates, about 95 ℃, continue reaction 45 minutes, solid-liquid separation, solution are heated to about 80 ℃, add 16.5 parts of citric acids, 11 parts of Zinc Sulphate Heptahydrates, 7.5 part iron vitriol, 10 parts of boraxs, 267 parts of Repone K, continue reaction 40 minutes, cooling makes the complex of humic acids and urea liquid fertilizer, the product analysis result: fulvo acid 7.6%, nitrogen 14.9%, P
2O
56.4%, potassium 13.9%, organic matter 17.2%, pH=6.7.
Embodiment 4: get the solid-liquid separation solution that makes among 320 parts of embodiment 1 and 120 parts of water in reactor, add 58.7 parts of urea, 80 ℃ of left and right sides stirring and dissolving, add 36 parts of monoammonium phosphates, 9.9 parts of citric acids, 6.6 parts of Zinc Sulphate Heptahydrates, 4.5 part iron vitriol, 6 parts of boraxs, 39 parts of Repone K, about 85 ℃, continue reaction 45 minutes, cooling makes the complex of humic acids and urea liquid fertilizer, the product analysis result: fulvo acid 8.4%, nitrogen 8.2%, P
2O
54.2%, potassium 4.9%, organic matter 12.0%, pH=5.5.
Embodiment 5: get the solid-liquid separation solution that makes among 340 parts of embodiment 1 and 31 parts of water in reactor, add 54 parts of urea, 85 ℃ of left and right sides stirring and dissolving, add 37 parts of monoammonium phosphates, 9.9 parts of citric acids, 6.6 parts of Zinc Sulphate Heptahydrates, 4.5 part iron vitriol, 6 parts of boraxs, 110 parts of Repone K, about 85 ℃, continue reaction 45 minutes, cooling makes the complex of humic acids and urea liquid fertilizer, the product analysis result: fulvo acid 7.6%, nitrogen 12.9%, P
2O
54.4%, potassium 9.9%, organic matter 14.5%, pH=6.4.
Embodiment 6: get the solid-liquid separation solution that makes among 200 parts of embodiment 3 in reactor, add 192 parts of urea, 83 ℃ of left and right sides stirring and dissolving, add 6 parts of monoammonium phosphates, 9.9 parts of citric acids, 6.6 parts of Zinc Sulphate Heptahydrates, 4.5 part iron vitriol, 6 parts of boraxs, 110 parts of Repone K, about 85 ℃, continue reaction 45 minutes, cooling makes the complex of humic acids and urea liquid fertilizer, the product analysis result: fulvo acid 7.6%, nitrogen 19.3%, P
2O
56.4%, potassium 10.2%, organic matter 13.7%, pH=6.7.
Claims (17)
1. one kind is the preparation method of the liquid fertilizer of matrix with the complex of humic acids and urea, it is characterized in that: with 100-600 part water in reactor, stir and to add 100-400 part urea down, be warming up to 40-100 ℃, treat that urea dissolves fully after, add 100-500 part humic acid material coal, stirring reaction 10 minutes adds 0-200 part phosphoric acid salt, continues reaction 10-120 minute, solid-liquid separation, solution is heated to 80-90 ℃, adds 10-50 part complexing agent then, 5-20 part zinc salt, 5-15 part ferrous salt, 5-30 part boron compound, 0-500 part sylvite continues reaction 10-60 minute, cooling makes the complex of humic acids and urea liquid fertilizer.
2. according to claim 1, it is characterized in that: described humic acid material coal is any or multiple combination in weathered coal, brown coal, the peat.
3. according to claim 1, it is characterized in that: described humic acid material coal water content is 0-40%, and humic acids content 〉=20% was pulverized 30 orders-200 mesh sieve.
4. according to claim 1, it is characterized in that: described water is pure water, softening water, tap water, natural water.
5. according to claim 1, it is characterized in that: described urea, phosphoric acid salt, sylvite are industrial goods or agricultural supplie.
6. according to claim 1, it is characterized in that: described phosphoric acid salt is various water-soluble phosphates.
7. according to claim 1, it is characterized in that: described phosphoric acid salt is potassiumphosphate, ammonium phosphate, sodium phosphate.
8. according to claim 1, it is characterized in that: described phosphoric acid salt, when consumption weight is 0 part, the weight ratio of urea and humic acid material coal＞2: 1; When consumption weight greater than 0 part during smaller or equal to 100 parts, the weight ratio of urea and humic acid material coal≤2: 1.
9. according to claim 1, it is characterized in that: described complexing agent is citric acid, tartrate, ethylenediamine tetraacetic acid (EDTA), disodium EDTA.
10. according to claim 1, it is characterized in that: described zinc salt is various water-soluble zinc salts.
11. according to claim 1, it is characterized in that: described zinc salt is zinc sulfate, zinc chloride, zinc nitrate.
12. according to claim 1, it is characterized in that: described ferrous salt is various water-soluble ferrous salts.
13. according to claim 1, it is characterized in that: described ferrous salt is ferrous sulfate, ferrous ammonium sulphate, iron protochloride.
14. according to claim 1, it is characterized in that: described boron compound is various water-soluble boron compounds.
15. according to claim 1, it is characterized in that: described boron compound is borax, boric acid, boron trifluoride.
16. according to claim 1, it is characterized in that: described sylvite is various water-soluble sylvite.
17. according to claim 1, it is characterized in that: described sylvite is Repone K, vitriolate of tartar, saltpetre.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102775227A (en) * | 2011-12-02 | 2012-11-14 | 中国科学院新疆生态与地理研究所 | Tomato processing humic acid compound fertilizer applicable to drip irrigation culture and application method of fertilizer |
| CN104447055A (en) * | 2014-12-22 | 2015-03-25 | 常熟市辛庄镇双浜农地股份合作社 | Preparation method of foliage fertilizer used for fruit tree |
| CN104496681A (en) * | 2014-12-22 | 2015-04-08 | 常熟市辛庄镇双浜农地股份合作社 | Foliage fertilizer for fruit trees |
| CN108314582A (en) * | 2018-03-05 | 2018-07-24 | 欧洲农业物理（新乡）研究院有限公司 | Novel organic mineral substance liquid humic acid fertilizer |
| CN109970488A (en) * | 2017-12-28 | 2019-07-05 | 许传高 | The liquid fertilizer made using amino acid fermentation tail washings |
| CN111410573A (en) * | 2020-03-28 | 2020-07-14 | 桂宝友 | Preparation method of foliar fertilizer |
| CN115448776A (en) * | 2022-07-28 | 2022-12-09 | 萍乡市红土地腐植酸有限公司 | Phosphorus humate and preparation method thereof |
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| CN111410573A (en) * | 2020-03-28 | 2020-07-14 | 桂宝友 | Preparation method of foliar fertilizer |
| CN115448776A (en) * | 2022-07-28 | 2022-12-09 | 萍乡市红土地腐植酸有限公司 | Phosphorus humate and preparation method thereof |
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