CN100503523C - Loss control method for low cost environment-friendly type nitrogenous fertilizer and loss control fertilizer - Google Patents
Loss control method for low cost environment-friendly type nitrogenous fertilizer and loss control fertilizer Download PDFInfo
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- CN100503523C CN100503523C CNB2007100202643A CN200710020264A CN100503523C CN 100503523 C CN100503523 C CN 100503523C CN B2007100202643 A CNB2007100202643 A CN B2007100202643A CN 200710020264 A CN200710020264 A CN 200710020264A CN 100503523 C CN100503523 C CN 100503523C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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Abstract
The invention discloses a low-cost environment-protective typed nitrogen fertilizer loss-control method and controlling fertilizer, which is characterized by the following: utilizing natural one-dimensional nanometer mineral material to fix soil; reducing nitrogen through spraying dissolving, radial flow and evaporating; reducing nitrogen loss by 20-60%; improving the utility of nitrogen fertilizer rate to modify soil.
Description
Technical field
The invention belongs to environmental protection technology, specifically is a kind of nitrogenous fertilizer control mistake method and sustained-release fertilizer material.
Background technology
2002, United Nations Environment Programme (UNEP) delivered " global environment prospect " report, and big G﹠W pollution deterioration is classified as first of the eight overall situation problems.The most important inducement of topsoil is greenhouse gas emission, and it mainly is that nitrogen, phosphorus etc. enter water body and cause body eutrophication that water pollutes.One studies show that, because a large amount of uses and the improper use of chemical fertilizer, China has 123.5 ten thousand tons of nitrogen to flow to rivers and lakes by the surface water river rising in Ningxia and flowing into central Shaanxi every year, and 49.4 ten thousand tons enter underground water, and 2,990,000 tons enter atmosphere.Nitrogen water body such as enters through approach such as runoff, drip washing, causes the rivers,lakes and seas eutrophication, and volatile matter is with N
2The O form enters atmosphere, causes greenhouse gases to increase.As seen, a large amount of uses of nitrogenous fertilizer have formed the solid of " from underground to aerial " and have polluted, and the loss that causes is startling.
Nitrogen source in the water body is a lot, and exogenous load and endogenous load is wherein arranged.Ectogenic nitrogen has pollution of area source and point-source pollution.Pollution of area source is mainly derived from agricultural, accounts for 70%, and point-source pollution is mainly derived from sanitary sewage and trade effluent, and endogenous is loaded the release of nitrogen in the settling, aquatic animals and plants metabolism is decomposed etc.Estimate according to Isermann (1990),, account for 37%～82% nitrogen in the agricultural soil and be discharged into surface water in West Europe.Nutritional surveillance to 270 rivers of Danish shows, 94% nitrogen wherein is mainly from the non-point pollution of rural activity.In China, in the period of nearest 20～30, the nitrogen that is lost to every year outside the farmland surpasses more than 1,000 ten thousand tons, about 30,000,000,000 yuan of direct economic loss.
As seen, the control loss of nitrogenous fertilizer is to reduce the matter of utmost importance that water pollutes.Existing slow-release fertilizer or controlled release are fertile to be difficult to be accepted by vast farmers because cost is too high, is unfavorable for large-scale promotion application, seems very necessary so develop a kind of low cost environment-friendly type nitrogenous fertilizer control mistake technology.
Summary of the invention
The purpose of this invention is to provide a kind of low cost environment-friendly type nitrogenous fertilizer control mistake method and sustained-release fertilizer, utilize natural 1-dimention nano mineral material---composite organic floculant polyacrylamide of attapulgite and inorganic flocculating agent aluminium iron polychloride, reach nitrogen (ammonia nitrogen, urea etc.) is fixed in the soil, reduce the loss of nitrogen by leaching, runoff and the three kinds of approach that volatilize.
Technical scheme of the present invention is as follows:
Low cost environment-friendly type nitrogenous fertilizer control mistake method, it is characterized in that utilizing natural 1-dimention nano mineral material---composite organic floculant polyacrylamide of attapulgite and inorganic flocculating agent aluminium iron polychloride mix with nitrogenous fertilizer make the material or mix thoroughly, after nitrogen application is in the soil, nitrogen is fixed in the soil, reduces the loss of nitrogen by leaching, runoff and the three kinds of approach that volatilize.
Described nitrogenous fertilizer: attapulgite: polyacrylamide: aluminium iron polychloride is pressed the weight proportion of 1000:100-300:1-5:2-10, mixing granulation or stir evenly.
Described nitrogenous fertilizer is meant urea or ammonium fertilizer.
The low cost environment-friendly type nitrogenous fertilizer sustained-release fertilizer, the weight proportion of described each component is:
Nitrogenous fertilizer 1000
Attapulgite 100-300
Polyacrylamide 1-5
Aluminium iron polychloride 2-10.
Described nitrogenous fertilizer is meant urea or ammonium fertilizer.
Principle of the present invention is: the character of utilizing the nano pore structure of attapulgite, high specific area and high ion exchange volume on the one hand, ammonia nitrogen or the urea molecule mode by chemistry and physical adsorption is fixed on nano pore inside and the outside surface, utilize the strong flocculation characteristics of polyacrylamide and aluminium iron polychloride then, make the flocculation of attapulgite and soil on every side thereof, form bigger attapulgite molecular network.So not only can increase attapulgite to the adsorption rate of nitrogen but also can stop attapulgite to be taken away, thereby reach the purpose that the nitrogenous fertilizer control is lost by current.
Beneficial effect:
1, present technique can reduce nitrogen loss and reaches 20%-60%, improves utilization rate of nitrogen fertilizer, reduces nitrogen to water body and atmospheric pollution.
2, cost is low.The sustained-release fertilizer of making, every bag of price is not higher than conventional nitrogenous fertilizer of the same type.Easily accepted by the peasant, big area is promoted, thereby has much using value and market potential.
3, add the whole environmental friendliness of material, and the tool soil improvement action.
Embodiment
1, with nitrogenous fertilizer (urea or ammonium fertilizer): attapulgite: polyacrylamide: aluminium iron polychloride is pressed 1000:(100-300): (1-5): the proportioning of (2-10), the mixing granulation, particle diameter is controlled at 2-6mm.Nitrogen fertilizer applying method and usage quantity are used and both can routinely.
2, with attapulgite: polyacrylamide: aluminium iron polychloride with the nitrogenous fertilizer stirring and evenly mixing, uses as nitrogen fertilizer potentiating agent then by the proportioning mixing in 1.
Claims (4)
1, low cost environment-friendly type nitrogenous fertilizer control mistake method, it is characterized in that utilizing natural 1-dimention nano mineral material---composite organic floculant polyacrylamide of attapulgite and inorganic flocculating agent aluminium iron polychloride mix with nitrogenous fertilizer make the material or mix thoroughly, with nitrogen application in soil, nitrogen in the nitrogenous fertilizer is fixed in the soil, and nitrogen is by the loss of leaching, runoff and the three kinds of approach that volatilize in the minimizing nitrogenous fertilizer; Described nitrogenous fertilizer: attapulgite: aluminium iron polychloride is pressed the weight proportion of 1000:100-300:1-5:2-10, mixing granulation or stir evenly.
2, low cost environment-friendly type nitrogenous fertilizer control mistake method according to claim 1 is characterized in that described nitrogenous fertilizer is meant urea or ammonium fertilizer.
3, low cost environment-friendly type nitrogenous fertilizer sustained-release fertilizer is characterized in that the weight proportion of described each component is:
Nitrogenous fertilizer 1000
Attapulgite 100-300
Polyacrylamide 1-5
Aluminium iron polychloride 2-10.
4, low cost environment-friendly type nitrogenous fertilizer sustained-release fertilizer according to claim 3 is characterized in that described nitrogenous fertilizer is meant urea or ammonium fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100202643A CN100503523C (en) | 2007-03-11 | 2007-03-11 | Loss control method for low cost environment-friendly type nitrogenous fertilizer and loss control fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100202643A CN100503523C (en) | 2007-03-11 | 2007-03-11 | Loss control method for low cost environment-friendly type nitrogenous fertilizer and loss control fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101041606A CN101041606A (en) | 2007-09-26 |
| CN100503523C true CN100503523C (en) | 2009-06-24 |
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| CNB2007100202643A Expired - Fee Related CN100503523C (en) | 2007-03-11 | 2007-03-11 | Loss control method for low cost environment-friendly type nitrogenous fertilizer and loss control fertilizer |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173962A (en) * | 2011-01-07 | 2011-09-07 | 中国科学院合肥物质科学研究院 | Built-in screen type controlled-release urea as well as production method and application thereof |
| CN102515978B (en) * | 2011-11-23 | 2014-04-02 | 河南心连心化肥有限公司 | Slow-release urea and production method thereof |
| CN102498950A (en) * | 2011-12-07 | 2012-06-20 | 苏州硒谷科技有限公司 | Selenium sustained-release edible fungus additive for selenium-rich culturing of edible fungus and preparation method thereof |
| CN103960467B (en) * | 2013-01-30 | 2017-07-07 | 夏伦志 | A kind of agent of modified form straw ammoniation and its application method |
| CN103224424B (en) * | 2013-04-12 | 2014-05-07 | 湖北三得利肥业有限公司 | Sustained and controlled release composite fertilizer and preparation method thereof |
| CN103708917A (en) * | 2013-12-09 | 2014-04-09 | 广西科技大学 | Slow release fertilizer and preparation method thereof |
| CN103724110A (en) * | 2013-12-09 | 2014-04-16 | 广西科技大学 | Slow release ammonium carbonate fertilizer and preparation method thereof |
| CN103708915A (en) * | 2013-12-09 | 2014-04-09 | 广西科技大学 | Slow release fertilizer and preparation method thereof |
| CN103724109A (en) * | 2013-12-09 | 2014-04-16 | 广西科技大学 | Slow release fertilizer and preparation method thereof |
| CN105801228A (en) * | 2014-12-27 | 2016-07-27 | 锦州硕丰农药集团有限公司 | Controlled release medical fertilizer and preparation method thereof |
| CN105409571B (en) * | 2015-12-28 | 2018-12-28 | 铜仁学院 | The method for improving heavy saline output of cotton and planting benefit |
| CN106433671A (en) * | 2016-09-12 | 2017-02-22 | 巢湖春友种业科技有限公司 | Soil fertilizer loss rate reducible soil modifier and preparation method thereof |
| CN108341457A (en) * | 2018-03-02 | 2018-07-31 | 合肥浦邦农业科技有限公司 | A kind of freshwater aquiculture fishpond disinfection oxygenation agent |
| CN110511759A (en) * | 2019-08-21 | 2019-11-29 | 上海市农业科学院 | A kind of application of mineral powder soil conditioner and its resistance control Cd uptake and nitrogen loss |
Citations (2)
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| CN1850743A (en) * | 2006-05-18 | 2006-10-25 | 中国科学院等离子体物理研究所 | Nitrogen fertilizer solidifying method by active soil, flocculant, adsorbent composite material and fertilizer |
| CN1875673A (en) * | 2006-06-10 | 2006-12-13 | 中国科学院等离子体物理研究所 | Method for coating seeds by combined use of active soil, adsorbing and flocculating agent and coating agent |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850743A (en) * | 2006-05-18 | 2006-10-25 | 中国科学院等离子体物理研究所 | Nitrogen fertilizer solidifying method by active soil, flocculant, adsorbent composite material and fertilizer |
| CN1875673A (en) * | 2006-06-10 | 2006-12-13 | 中国科学院等离子体物理研究所 | Method for coating seeds by combined use of active soil, adsorbing and flocculating agent and coating agent |
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| 高效无机絮凝剂——聚合铝铁的合成及应用. 王雪枫，马凤云，董，毅，陈德军.新疆大学学报(理工版)，第18卷第1期. 2001 * |
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| CN101041606A (en) | 2007-09-26 |
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