CN105712803A - Triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid and preparation method of triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid - Google Patents
Triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid and preparation method of triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid Download PDFInfo
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- CN105712803A CN105712803A CN201511000659.8A CN201511000659A CN105712803A CN 105712803 A CN105712803 A CN 105712803A CN 201511000659 A CN201511000659 A CN 201511000659A CN 105712803 A CN105712803 A CN 105712803A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B15/00—Organic phosphatic fertilisers
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Abstract
The invention discloses a preparation method of a triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid. The preparation method includes A, preparing urea phosphate slurry, namely decomposing phosphate ore by sulfuric acid or nitric acid to obtain 20-35% (mass concentration calculated according to P2O5) wet-process phosphoric acid, adding urea, and performing suction filtration to remove impurities so as to obtain urea phosphate slurry; B, preparing a nitric acid-nitric acid liquid mixture, namely mixing the humic acid with weathered coal or brown coal, mixing an obtained mixture with 45% nitric acid, and performing nitration and suction filtration to remove impurities so as to obtain nitric acid-humic acid liquid mixture; C, neutralizing, granulating and drying. The preparation method of the triple-nitrogen urea phosphate water-soluble fertilizer containing the humic acid has the advantages that nitrogen fertilizer consumption is decreased by 30-50% than conventional fertilizers; since the water-soluble fertilizer is prepared from the wet-process phosphoric acid, the weathered coal and the brown coal, energy saving, consumption reduction, high resource utilization ratio and low preparation cost are achieved; by the aid of the humic acid and inorganic nutrients, a single inorganic nutrient application mode is changed, farmland utilization and farmland maintenance are combined, soil aggregate structures are improved, and nutrient utilization ratio is increased and can be up to 60-85% in drip irrigation.
Description
Technical field
The invention belongs to technical field of agricultural fertilizers, be specifically related to a kind of containing humic acids three nitrogen urea phosphate Water soluble fertilizer and preparation method thereof.
Background technology
China's chemical fertilizer this season utilization rate nitrogenous fertilizer 20～35%, phosphate fertilizer 10～25%, potash fertilizer 35～50%.Fertilizer poor efficiency, not only causes the wasting of resources, also results in the problem of environmental pollutions such as Soil structure deterioration, water eutrophication and nitrogen oxide discharging.Solving a major measure of these problems is development high-efficiency water-saving industrialized agriculture, Water soluble fertilizer convenient can spray as novel environment friendly Fertilizer application, rush execute and can and spray drop fill and be utilized in conjunction with improving utilization rate of fertilizer, save agricultural water, reduce ecological environmental pollution, improve crop quality and reduce the aspect clear superiorities such as labour force.But China's Water soluble fertilizer is the single chemical fertilizer of N P and K a great number of elements or medium trace element mostly at present, the single chemical fertilizer of chronic administration easily causes soil agllutination, Fertility Degeneration, crop quality decline.Meanwhile, domestic water-soluble fertilizer product is by selecting highly-water-soluble raw material mostly, or adopts physical method that raw material is levigate, and to improve product water dissolubility, such method all exists high cost, fails to solve very well shower nozzle blockage problem.In the north, water, Ca, Mg and Fe content is high, and it forms insoluble phosphate with the water solublity phosphorus source (such as ammonium hydrogen phosphate, potassium phosphate etc.) in fertilizer, blocks shower nozzle, reduces facility service efficiency.
It is divided into ammonium fertilizer, nitrate fertilizer and amide nitrogen fertilizer according to the form nitrogenous fertilizer of nitrogen compound in nitrogenous fertilizer. from nutritional significance, crop is main in growth and development process absorbs two kinds of mineral nitrogen nitrogenous sources, i.e. ammonium nitrogen and nitrate nitrogen.Urea nitrogen is amidonitrogen, generally through the effect of soil microorganism, after transferring ammonium nitrogen to, then need to supply Crop.Generally, use ammonium nitrogen and nitrate fertilizer simultaneously, the higher growth rate of crop and yield can be obtained.Using two kinds of form nitrogen, plant is more easy to adjustment intracellular ph value and stores a part of nitrogen by consuming a small amount of energy simultaneously.Both suitable ratios depend on the total concentration used: when concentration is low, and different proportion is little on plant growing impact, and during concentration height, nitrate nitrogen demonstrates superiority as main nitrogen.The Main Factors affecting two kinds of forms of nitrogen effects is crop species, the different cultivars of same crop, weather conditions, soil and nitrogen fertilizer amount.Now for the Semen Tritici aestivi reaction to both form nitrogenous fertilizer: amount of nitrogen, for 120kg/hm2, is all broadcast front seed manure and once applied.Under field test condition, being supplied separately to nitrate nitrogen and supply nitrate nitrogen when adding ammonium nitrogen (nitrate nitrogen: ammonium nitrogen=2: 1), Growth of Wheat is good；And when being supplied separately to ammonium nitrogen, Semen Tritici aestivi biological yield and grain yield all decline to some extent；When supply ammonium nitrogen adds nitrate nitrogen (ammonium nitrogen: nitrate nitrogen=2: 1), Semen Tritici aestivi biological yield and grain yield are between being supplied separately to ammonium nitrogen and being supplied separately between nitrate nitrogen.
Humic acids has higher cation converted quantity, higher more than 10 times than general soil.After being manured into soil, make soil that Anion-adsorption ability to be significantly improved, make capping salt content reduce.Changing that saliferous in soil is too high, the physicochemical character of grogs high degree of dispersion, Soil structure difference, promoting the formation of soil agreegate so that it is become kilter, thus growing, for plant root growth, the condition that creation is good.Humic acids can promote the activity of soil microorganism, increases the facts such as the quantity of soil microorganism, the activity of enhancing soil enzyme, is confirmed by a large amount of research datas both at home and abroad.And unanimously think, use humic acids make aerophile bacterium, actinomycetes, cellulose-decomposing bacteria quantity increase more.To accelerating organic mineralising, promote that the release of nutrient is favourable.Therefore, humic acids can prevent and treat the root rot of fruit tree, Huang Ye, lobule, droop.
Such as China Patent Publication No. CN152291A, disclosing a kind of preparation method for drip irrigation system efficient compound fertilizer, this patent adopts 70～85% phosphoric acid to prepare Water soluble fertilizer with carbamide generation urea phosphate, and usual product pH value is lower than 1, easily cause soil acidification, it is suppressed that plant growth.And working concentration is that 70～85% phosphoric acid prepare urea phosphate, cost is too high, does not have promotional value.Such as China Patent Publication No. CN1298850A, disclose fertilizer for spray or drip irrigation and production method thereof, this patent adopts concentration to be that 60～70 phosphoric acid add ammonium hydrogen carbonate production intermediate product ammonium phosphate with liquefied ammonia or liquefied ammonia, sulphuric acid produces intermediate product potassium sulfate with potassium chloride and liquefied ammonia, and itself and carbamide are mixed to get final products.This patent adopts thermal phosphoric acid cost high, and containing only there being inorganic nutrients in product, chronic administration easily causes soil degradation.Such as China Patent Publication No. CN101570456A, disclose a kind of water soluble humic acid multi-element solid fertilizer and production method thereof, disclosing by fulvo acid, water solublity nitrogenous fertilizer, water soluble phosphorous fertilizer, water soluble potassic fertilizer, water-soluble complex trace element formulated, its fulvo acid is reached at pH value by weathered coal hydro-oxidation potassium and carries yellow humic acid potassium salt under 10.5 conditions and make；Water soluble phosphorous fertilizer is prepared MAP and urea phosphate by raw phosphoric acid and ground phosphate rock, and selects Sulfates ferrum copper zinc-manganese, after the Water-solubility Material mixing that namely program is selected, especially in the basic conditions, easily reaction generates the precipitate such as iron phosphate, zinc phosphate, causes water-insoluble to exceed standard, affects fertilizer efficiency.
Summary of the invention
Present invention aim at for above-mentioned defect of the prior art, there is provided one containing ammonium nitrogen, nitrate nitrogen and three kinds of form nitrogens of amidonitrogen, the Water soluble fertilizer that rapid long-acting combines, reach to improve crop quality, and nitrogen utilization efficiency is particularly a kind of containing humic acids three nitrogen urea phosphate Water soluble fertilizer and preparation method thereof.
A kind of humic acids of offer and inorganic combination are provided, apply, at fertilising supply crop nutrition content, the humic-acid-type substances that soil physics, biological character can be improved simultaneously, reduce soil acidification degree.
Another object of the present invention also resides in a kind of content urea phosphate Water soluble fertilizer of offer, and urea phosphate forms soluble phosphoric acid urea calcium and urea phosphate magnesium with calcium and magnesium in water, reduces or prevent drip irrigation system fouling and clogging, improves drip irrigation system service life.
The present invention is achieved by the following technical solution:
A prepares urea phosphate slip
Obtain via sulphuric acid or decomposing phosphorite by using nitric acid with P2O5Meter mass concentration is 20～35% phosphoric acid by wet processes, and adding with phosphoric acid by wet process mol ratio is the carbamide of 1.0～1.2,50～90 DEG C of reaction 20～60min；Sucking filtration roguing obtains urea phosphate slip；
B. the mixed liquid of nitric acid humic acids is prepared
Being mixed in the ratio of quality 100:30-50 with weathered coal or brown coal by humic acids, mixture mixes with 45% concentration nitric acid 1:0.5～2 in mass ratio again, nitration reaction 10～40min, sucking filtration roguing, obtains the mixed liquid of nitric acid humic acids；
C. neutralization, granulating and drying
Be that 10～50:15～50:5～70:5～50 form mixed slurry by urea phosphate slip, the mixed liquid of nitric acid humic acids, nitrogenous fertilizer, potash fertilizer by mass parts, mixed slurry pass in ammonia and after, enter granulating and drying machine, granulating and drying；Wherein ammonia intake is with mixed slurry pH value 2～3.5.
High nitrogen type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, nitrogenous fertilizer, potash fertilizer mass parts by 29:20:27:24 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
High potassium type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, nitrogenous fertilizer, potash fertilizer mass parts by 17:28:10:45 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
Equilibrated type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, nitrogenous fertilizer, potash fertilizer mass parts by 32:18:22:28 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5.
Described nitrogenous fertilizer material be carbamide, ammonium sulfate, ammonium chloride one or more.
Described potash fertilizer be potassium chloride, potassium sulfate, potassium nitrate one or more.
Beneficial effect:
1, ammonium nitrogen, nitrate nitrogen and three kinds of form nitrogens of amidonitrogen combine, and quick-acting+slow release, more conventional fertilizer reduces nitrogen fertilizer amount 30～50%.
2, adopting phosphoric acid by wet process, weathered coal, brown coal is raw material production Water soluble fertilizer, energy-saving and cost-reducing, and resource utilization is high, low cost of manufacture.
3, humic acids and inorganic nutrients, changes and singly executes inorganic nutrients mode, it is achieved land used is increased soil fertility combinations, improves soil aggregate, and raising plant recovery of nutrient, in drip irrigation, plant recovery of nutrient is up to 60%～85%.
Detailed description of the invention
Below by being embodied as example, the present invention is further described in detail.
Embodiment 1
The present invention is achieved by the following technical solution:
Described one, containing humic acids three nitrogen urea phosphate Water soluble fertilizer and preparation method thereof, obtains including via sulphuric acid or decomposing phosphorite by using nitric acid with P2O5Meter mass concentration is 20～35% phosphoric acid by wet processes, and adding with phosphoric acid by wet process mol ratio is the carbamide of 1.0～1.2,50～90 DEG C of reaction 20～60min；Sucking filtration roguing obtains urea phosphate slip；In the weathered coal of humic acids 30%～50% or brown coal and 45% concentration nitric acid, in mass ratio 1:0.5～2, nitration reaction 10～40min, sucking filtration roguing, the mixed liquid of nitric acid humic acids will be obtained；Be that 10～50:15～50:5～70:5～50 form mixed slurry by urea phosphate slip, the mixed liquid of nitric acid humic acids, nitrogenous fertilizer, potash fertilizer by mass parts, mixed slurry pass in ammonia and after, enter granulating and drying machine, granulating and drying；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
High nitrogen type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, carbamide, potassium sulfate mass parts by 17:21:47:15 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
Application effect: Semen Maydis manure trial
| Conventional compound fertilizer (nutrient formula: N-P2O5-K2O=30-10-10) | High nitrogen type product (nutrient formula: N-P of the present invention2O5-K2O=30-10-10) | |
| Test Deng nutrient | ||
| Average plant height | 18.5 centimetre | 26.5 centimetre |
| Average root length | 10.5 centimetre | 12.5 centimetre |
| Rate of growth | -- | 22.6% |
| Decrement 20% rate of growth | -- | 6.5% |
Use the corn yield volume increase 22.6% of the more conventional compound fertilizer of this product.
Under fertilising decrement 20% condition, use the Semen Maydis of this product and use the corn yield volume increase 6.5% of conventional compound fertilizer.
Embodiment 2
The present invention is achieved by the following technical solution:
Described one, containing humic acids three nitrogen urea phosphate Water soluble fertilizer and preparation method thereof, obtains including via sulphuric acid or decomposing phosphorite by using nitric acid with P2O5Meter mass concentration is 20～35% phosphoric acid by wet processes, and adding with phosphoric acid by wet process mol ratio is the carbamide of 1.0～1.2,50～90 DEG C of reaction 20～60min；Sucking filtration roguing obtains urea phosphate slip；In the weathered coal of humic acids 30%～50% or brown coal and 45% concentration nitric acid, in mass ratio 1:0.5～2, nitration reaction 10～40min, sucking filtration roguing, the mixed liquid of nitric acid humic acids will be obtained；Be that 10～50:15～50:5～70:5～50 form mixed slurry by urea phosphate slip, the mixed liquid of nitric acid humic acids, nitrogenous fertilizer, potash fertilizer by mass parts, mixed slurry pass in ammonia and after, enter granulating and drying machine, granulating and drying；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
High potassium type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, carbamide, potassium sulfate mass parts by 17:28:10:45 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
Equilibrated type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, carbamide, potassium sulfate mass parts by 32:18:22:28 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 3.2.
Application effect: Fructus Musae manure trial (trophophase 9 months, every mu of 120 strains)
In an experiment, the rate of growth of Fructus Musae and use the banana production quality disease of conventional compound fertilizer and carry out contrasting and obtain.
Embodiment 3
The present invention is achieved by the following technical solution:
Described one, containing humic acids three nitrogen urea phosphate Water soluble fertilizer and preparation method thereof, obtains including via sulphuric acid or decomposing phosphorite by using nitric acid with P2O5Meter mass concentration is 20～35% phosphoric acid by wet processes, and adding with phosphoric acid by wet process mol ratio is the carbamide of 1.0～1.2,50～90 DEG C of reaction 20～60min；Sucking filtration roguing obtains urea phosphate slip；In the weathered coal of humic acids 30%～50% or brown coal and 45% concentration nitric acid, in mass ratio 1:0.5～2, nitration reaction 10～40min, sucking filtration roguing, the mixed liquid of nitric acid humic acids will be obtained；Be that 10～50:15～50:5～70:5～50 form mixed slurry by urea phosphate slip, the mixed liquid of nitric acid humic acids, nitrogenous fertilizer, potash fertilizer by mass parts, mixed slurry pass in ammonia and after, enter granulating and drying machine, granulating and drying；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
Equilibrated type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, ammonium sulfate, potassium nitrate mass parts by 24:38.5:15:22.5 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 3.2.
High potassium type nitrogen urea phosphate Water soluble fertilizer containing humic acids three be urea phosphate slip, nitric acid humic acids mixed liquid, carbamide, potassium nitrate mass parts by 17:28:10:45 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5；
Application effect: Fructus Mali pumilae manure trial
In an experiment, the rate of growth of Fructus Mali pumilae and use the apple production quality of conventional compound fertilizer and carry out contrasting and obtain.
Claims (6)
1. one kind containing humic acids three nitrogen urea phosphate Water soluble fertilizer preparation method, it is characterised in that preparation method is:
A prepares urea phosphate slip
Obtain via sulphuric acid or decomposing phosphorite by using nitric acid with P2O5Meter mass concentration is 20～35% phosphoric acid by wet processes, and adding with phosphoric acid by wet process mol ratio is the carbamide of 1.0～1.2,50～90 DEG C of reaction 20～60min；Sucking filtration roguing obtains urea phosphate slip；
B. the mixed liquid of nitric acid humic acids is prepared
Being mixed in the ratio of quality 100:30-50 with weathered coal or brown coal by humic acids, mixture mixes with 45% concentration nitric acid 1:0.5～2 in mass ratio again, nitration reaction 10～40min, sucking filtration roguing, obtains the mixed liquid of nitric acid humic acids；
C. neutralization, granulating and drying
Be that 10～50:15～50:5～70:5～50 form mixed slurry by urea phosphate slip, the mixed liquid of nitric acid humic acids, nitrogenous fertilizer, potash fertilizer by mass parts, mixed slurry pass in ammonia and after, enter granulating and drying machine, granulating and drying；Wherein ammonia intake is with mixed slurry pH value 2～3.5.
2. one according to claim 1 is containing humic acids three nitrogen urea phosphate Water soluble fertilizer preparation method, it is characterized in that: high nitrogen type nitrogen urea phosphate Water soluble fertilizer containing humic acids three is that urea phosphate slip, nitric acid humic acids mixed liquid, nitrogenous fertilizer, potash fertilizer mass parts are by 29:20:27:24 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5.
3. one according to claim 1 is containing humic acids three nitrogen urea phosphate Water soluble fertilizer preparation method, it is characterized in that: high potassium type nitrogen urea phosphate Water soluble fertilizer containing humic acids three is that urea phosphate slip, nitric acid humic acids mixed liquid, nitrogenous fertilizer, potash fertilizer mass parts are by 17:28:10:45 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5.
4. one according to claim 1 is containing humic acids three nitrogen urea phosphate Water soluble fertilizer preparation method, it is characterized in that: equilibrated type nitrogen urea phosphate Water soluble fertilizer containing humic acids three is that urea phosphate slip, nitric acid humic acids mixed liquid, nitrogenous fertilizer, potash fertilizer mass parts are by 32:18:22:28 mixed slurry, mixed slurry pass in ammonia and after, enter drying machine drying-granulating；Wherein ammonia intake is with mixed slurry pH value 2～3.5.
5. one according to claim 1 is containing humic acids three nitrogen urea phosphate Water soluble fertilizer and preparation method thereof, it is characterised in that: described nitrogenous fertilizer material be carbamide, ammonium sulfate, ammonium chloride one or more.
6. one according to claim 1 is containing humic acids three nitrogen urea phosphate Water soluble fertilizer and preparation method thereof, it is characterised in that: described potash fertilizer be potassium chloride, potassium sulfate, potassium nitrate one or more.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106631578A (en) * | 2016-12-08 | 2017-05-10 | 深圳市芭田生态工程股份有限公司 | Humic acid composite fertilizer and preparation method thereof |
| CN107892597A (en) * | 2017-10-11 | 2018-04-10 | 菏泽金正大生态工程有限公司 | A kind of sulphur urea phosphate fertilizer and preparation method and application |
| CN113812341A (en) * | 2021-09-17 | 2021-12-21 | 广东海洋大学 | Formula and preparation process of culture medium for symbiosis of bacteria and plants |
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| CN106631578A (en) * | 2016-12-08 | 2017-05-10 | 深圳市芭田生态工程股份有限公司 | Humic acid composite fertilizer and preparation method thereof |
| CN107892597A (en) * | 2017-10-11 | 2018-04-10 | 菏泽金正大生态工程有限公司 | A kind of sulphur urea phosphate fertilizer and preparation method and application |
| CN107892597B (en) * | 2017-10-11 | 2021-06-18 | 菏泽金正大生态工程有限公司 | Urea thiophosphate fertilizer and preparation method and application thereof |
| CN113812341A (en) * | 2021-09-17 | 2021-12-21 | 广东海洋大学 | Formula and preparation process of culture medium for symbiosis of bacteria and plants |
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