CN101265129B - Composite nitrogen fertilizer - Google Patents
Composite nitrogen fertilizer Download PDFInfo
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- CN101265129B CN101265129B CN2008100237007A CN200810023700A CN101265129B CN 101265129 B CN101265129 B CN 101265129B CN 2008100237007 A CN2008100237007 A CN 2008100237007A CN 200810023700 A CN200810023700 A CN 200810023700A CN 101265129 B CN101265129 B CN 101265129B
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Abstract
The invention relates to a compound nitrogen fertilizer which is granular and is made from the following raw materials: calculated on the basis of total weight of raw materials of the compound nitrogen fertilizer, 30-40% of urea, 50-58% of ammonium chloride, 2.5-3.0% of diluted sulfuric acid and 0.8- 1.0% of synthetic ammonia. The inventive compound nitrogen fertilizer can efficiently increase the utilization rate of nitrogen element, prolong the period of fertilizer effect, increase crop yield, reduce the agricultural pollution of nitrogen fertilizer, and protect the environment.
Description
Technical field
The invention belongs to the agrochemical technical field, particularly relate to a kind of nitrogenous fertilizer.
Background technology
Nitrogen is one of three essential big nutritive elements of plant, and nitrogenous fertilizer is the maximum a kind of fertilizer of agricultural application.The main nitrogen fertilizers of China has urea, bicarbonate of ammonia, ammonium chloride, ammonium sulfate, ammonium nitrate etc. at present.These nitrogenous fertilizer are only in disassociation or decompose to generate ammonium nitrogen and nitric nitrogen could be absorbed by plant, and can transform mutually between the nitrogen energy of these two kinds of forms, and easily run off, and especially the loss of nitric nitrogen is very serious.Described nitrogen fertilizers or utilization ratio are not high, or can cause in various degree destruction to soil after the long-term application, after being manured into soil, change into volatile salt under the effect of the urase in soil as urea, the part volatile salt further is hydrolyzed into bicarbonate of ammonia and ammonium hydroxide.Because volatile salt, bicarbonate of ammonia, ammonium hydroxide all are unstable compounds, easily decomposition discharges ammonia under neutral and alkaline condition.So the nitrogen utilization efficiency of urea is 30%-40% only generally; Nitrogenous fertilizer such as ammonium chloride, ammonium sulfate is typical physiological acidic fertilizer, and the ammonium radical ion displaces a large amount of hydrogen ions in a large number by after the plant absorbing, forms strong acid with chlorion, sulfate ion, the pH value of soil is descended, be acid.
On the other hand, the activity of the loss of the release rate of control nitrogenous fertilizer, control ammonium nitrogen, control nitrobacteria and nitrite bacteria is the effective way that improves utilization rate of nitrogen fertilizer, reduces loss of nitrogen fertilizer to reduce ammonium nitrogen to the conversion of nitric nitrogen and the denitrification loss and the loss of control nitric nitrogen.The technology of existing controlled release nitrogenous fertilizer mainly contains two kinds: a kind of is to add nitrification inhibitor, urease inhibitor, nitrogen stabilizer etc., in CN1173482, add materials such as urase, nitrification inhibitor, this method is the cost height not only, and suppress the active side effect of soil probiotics in addition, destroy the micro-ecological environment of soil, its essence is the destruction to physical environment.Another kind is the physics coating, and WO8801132 and US5547486 adopt sulphur dressing or resin dressing, but the coating on surface is not when destroying, and fertility is difficult for discharging, and coating destroys the back nutrient and discharges in a large number, causes a large amount of losses of nitrogenous fertilizer.The patent No. is CN00110382.2, the Chinese invention patent that name is called a kind of nitrogen fertilizer composition and preparation method thereof discloses a kind of nitrogen fertilizer composition, this nitrogen fertilizer composition is by water-soluble nitrogenous fertilizer, water, wax, emulsifying agent and help emulsion to form, by the dispersion membrane technology with nitrogenous fertilizer molecule and oil phase, emulsifying agent forms the closely structure of the micron order oil coating of contact of molecular level, thereby the strong water resisting property of effect generation than small-particle by each oil bag nitrogenous fertilizer reaches slow-release nitrogen fertilizer effect preferably, but because this nitrogenous fertilizer is Powdered, water absorbability is bigger, deposit easy caking, cascading water is not smooth during use, can not trickle down equably, easily adhere to leaf, on the stem, cause the burning seedling.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of composite nitrogen fertilizer in order to overcome the deficiencies in the prior art, and the nitrogen utilization efficiency height of this nitrogenous fertilizer, fertilizer efficiency period is long, environmental pollution is little.
For achieving the above object, the present invention takes following technical scheme:
A kind of composite nitrogen fertilizer is particulate state, is benchmark with the gross weight of the raw material of composite nitrogen fertilizer, and raw material mainly is made up of urea 30～40%, ammonium chloride 50～58%, dilute sulphuric acid 2.5～3.0% and synthetic ammonia 0.8～1.0%.
The raw material of composite nitrogen fertilizer can also comprise ammonium sulfate and zinc sulfate, and ammonium sulfate and zinc sulfate account for respectively raw material gross weight 0.8～1.0% and 0.2～0.4%.
In order to make nitrogenous fertilizer have stronger absorption property, raw material can also comprise attapulgite, and attapulgite accounts for 5.0～8.0% of raw material gross weight,
In order to make nitrogenous fertilizer have the ability of stronger enrichment nutrient, raw material can also comprise intelligent peptide, and intelligent peptide accounts for 0.1～0.3% of raw material gross weight.
Preferably also include tensio-active agent in the raw material, 0.1%～0.2% of surfactant comprise raw material gross weight.
Tensio-active agent is paste or is powdery that during for paste, this tensio-active agent is made up of lubricating oil, Microcrystalline Wax, stearylamine and stearylamide.During for powdery, tensio-active agent is made up of water-holding agent, anion surfactant and high molecular polymer.
Composite nitrogen fertilizer is a spheroidal particle, and the particulate diameter is preferably 2.5～5.0 millimeters scopes.The massfraction of dilute sulphuric acid is 55～65%.
Composite nitrogen fertilizer of the present invention is taked following method preparation:
Urea and ammonium chloride are entered propylhomoserin method tablets press behind the uniform mixing in proportion, carry out aminating reaction to wherein feeding dilute sulphuric acid and synthetic ammonia in proportion then, feed an amount of steam humidifying again after, in tablets press, roll, be bonded to particle.Particle makes described composite nitrogen fertilizer through oven dry, screening after tablets press comes out.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
Composite nitrogen fertilizer mainly comprises urea and ammonium chloride, and after composite nitrogen fertilizer was executed soil, ammonium nitrogen was absorbed earlier, displaced hydrogen ion, effectively suppresses the hydrolysis of urase and the volatilization of minimizing ammonia; Simultaneously, chlorion can effectively suppress the activity of nitrobacteria and nitrite bacteria, reduces the conversion of ammonium nitrogen to nitric nitrogen, reduces the loss of nitric nitrogen; Composite nitrogen fertilizer is a particulate state, and stable grain pattern has the effect of multilayer physical protection, and hydrolysis rate slows down, and effectively suppresses nitrogen and decomposes, and reduces the loss of nitrogen.Therefore, composite nitrogen fertilizer of the present invention can effectively improve the utilization ratio of nitrogen and prolong fertilizer efficiency period, makes crop yield, joint fertilizer; Reduce the pollution of nitrogenous fertilizer agricultural simultaneously, effectively protect environment.
Embodiment
Below the specific embodiment of the present invention is described:
According to the composite nitrogen fertilizer of present embodiment, be benchmark with the gross weight of raw material, the prescription of raw material is:
Urea 35%, ammonium chloride 55%, dilute sulphuric acid 2.5%, synthetic ammonia 0.9%, ammonium sulfate 0.9%, zinc sulfate 0.3%, attapulgite 5%, intelligent peptide 0.2% and tensio-active agent 0.2%.
Wherein, one or more the combination that consists of lubricating oil, Microcrystalline Wax, stearylamine, stearylamide of tensio-active agent.The concentration of dilute sulphuric acid is 62% (quality percentage composition).
Composite nitrogen fertilizer prepares by following method:
After urea, ammonium chloride, ammonium sulfate, intelligent peptide (polymeric amino acid) be mixed in proportion; enter propylhomoserin method tablets press; feed dilute sulphuric acid and synthetic ammonia and carry out aminating reaction; after the heat that reaction is emitted is heated to the material in the tablets press about 60 degrees centigrade; feed small amount of steam; after material carried out humidification, roll in tablets press, material is bonded to particle.
It is 2.5～4.75 millimeters spheroidal particle that the particle that comes out from tablets press obtains diameter through oven dry, screening, cooling, coating, is described composite nitrogen fertilizer.Described coating carries out in coating machine, and the tensio-active agent of paste is injected on the particle through after the fusion.
In this prescription, attapulgite be a kind of have special construction, form, a physico-chemical property contain Shuifu County's magnesium silicate clay mineral, have excellent absorption property and certain ion-exchange capacity.Attapulgite after the activation has the adsorption cleaning effect to organophosphorus pesticides such as Trichlorphon, SD-1750.
The intelligence peptide is that a kind of novel plant nutrient is strengthened absorption agent.The intelligence peptide is a high-molecular polypeptide polymer.Many carboxyls are arranged on its protein peptide chain, and many again complexing groups around the chain have extremely strong sequestering action with metal ion.After fertilizer mixes, can with the nutrient ionic bond, form inner complex, and have the effect of extremely strong enrichment nutrient.It can also reduce and stop the loss of nutrient simultaneously, and has the good slow release effect, can fertilizer nutrient constantly be offered crop absorb, thereby improve utilization rate of fertilizer according to the plant growth needs, reaches the fertile effect of intelligence control.
The present invention utilizes antagonistic action between the different nitrogen fertilizers and mutual supplementary function, effectively controls the loss of nitrogenous fertilizer, improves utilization rate of nitrogen fertilizer.The ammonium chloride resource is cheap and easy to get, and itself and urea are made composite nitrogen fertilizer, and the nitrogenous fertilizer cost is low.
Claims (5)
1. composite nitrogen fertilizer, it is characterized in that: described composite nitrogen fertilizer is a particulate state, gross weight with the raw material of composite nitrogen fertilizer is a benchmark, and described raw material is made up of urea 30～40%, ammonium chloride 50～58%, dilute sulphuric acid 2.5～3.0%, synthetic ammonia 0.8～1.0%, ammonium sulfate 0.8～1.0%, zinc sulfate 0.2～0.4%, attapulgite 5.0～8.0%, intelligent peptide 0.1～0.3% and tensio-active agent 0.1%～0.2%.
2. a kind of composite nitrogen fertilizer according to claim 1 is characterized in that: described tensio-active agent is a paste, and this tensio-active agent is made up of lubricating oil, Microcrystalline Wax, stearylamine and stearylamide.
3. a kind of composite nitrogen fertilizer according to claim 1 is characterized in that: described tensio-active agent is a powdery, and this tensio-active agent is made up of water-holding agent, anion surfactant and high molecular polymer.
4. a kind of composite nitrogen fertilizer according to claim 1 is characterized in that: described composite nitrogen fertilizer is the spheroidal particle of 2.5～5.0 millimeters of diameters.
5. a kind of composite nitrogen fertilizer according to claim 1 is characterized in that: the massfraction of described dilute sulphuric acid is 55～65%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100237007A CN101265129B (en) | 2008-04-16 | 2008-04-16 | Composite nitrogen fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100237007A CN101265129B (en) | 2008-04-16 | 2008-04-16 | Composite nitrogen fertilizer |
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| CN101265129A CN101265129A (en) | 2008-09-17 |
| CN101265129B true CN101265129B (en) | 2010-09-01 |
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| CN2008100237007A Active CN101265129B (en) | 2008-04-16 | 2008-04-16 | Composite nitrogen fertilizer |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260118B (en) * | 2011-05-19 | 2013-05-29 | 湖南省中科农业有限公司 | Novel readily available nutritive nitrogenous fertilizer |
| CN102617243A (en) * | 2012-04-16 | 2012-08-01 | 瓮福（集团）有限责任公司 | Production formula of granular chloramine nitrogen fertilizer and preparation method thereof |
| CN102617244A (en) * | 2012-04-16 | 2012-08-01 | 瓮福（集团）有限责任公司 | Production formula and preparation method of particle thiamine nitrogenous fertilizer |
| CN103724062A (en) * | 2012-10-10 | 2014-04-16 | 刘书起 | Large-grained inorganic coated fertilizer and production method thereof |
| CN104973918A (en) * | 2014-04-11 | 2015-10-14 | 江苏华昌化工（涟水）有限公司 | Urea ammonium composite nitrogen fertilizer and preparation method thereof |
| CN107162803A (en) * | 2017-07-12 | 2017-09-15 | 烟台市昊星晟信息技术有限公司 | A kind of preparation method of fertilizer anti-caking agents |
| CN110668875B (en) * | 2019-11-04 | 2022-05-17 | 山西华鑫肥业股份有限公司 | Production method of high-sulfur full-water-soluble nitro-sulfur-based nitrogen fertilizer particles |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057046A (en) * | 1990-06-02 | 1991-12-18 | 江苏省盱眙县磷肥厂 | Compound fertilizer of N-P with wrapping film and production method thereof |
| CN1020155C (en) * | 1990-04-20 | 1993-03-24 | 孙进林 | Method for producing ammonium sulphate |
| CN1255362C (en) * | 2004-01-12 | 2006-05-10 | 山东新天新肥业有限公司 | Manufacturing method of nitrogen phosphorus potassium cmposite fertilizer rich in nitrogen and potassium |
-
2008
- 2008-04-16 CN CN2008100237007A patent/CN101265129B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1020155C (en) * | 1990-04-20 | 1993-03-24 | 孙进林 | Method for producing ammonium sulphate |
| CN1057046A (en) * | 1990-06-02 | 1991-12-18 | 江苏省盱眙县磷肥厂 | Compound fertilizer of N-P with wrapping film and production method thereof |
| CN1255362C (en) * | 2004-01-12 | 2006-05-10 | 山东新天新肥业有限公司 | Manufacturing method of nitrogen phosphorus potassium cmposite fertilizer rich in nitrogen and potassium |
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| CN101265129A (en) | 2008-09-17 |
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Effective date of registration: 20160831 Address after: Huaian 223400 Huaian city of Jiangsu province Lianshui county (Xue Hang) circular economy industrial park Lian New Road No. 28 Patentee after: Jiangsu Huayuan Ecological Agriculture Co., Ltd. Address before: 223400, Jiangsu, Huaian Lianshui Xue chemical concentration area Patentee before: Jiangsu Huachang Chemical (Lianshui) Co., Ltd. |