CN1297871A - Chemical fertilizer capable of absorbing and maintaining water and its production process - Google Patents
Chemical fertilizer capable of absorbing and maintaining water and its production process Download PDFInfo
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- CN1297871A CN1297871A CN99125505A CN99125505A CN1297871A CN 1297871 A CN1297871 A CN 1297871A CN 99125505 A CN99125505 A CN 99125505A CN 99125505 A CN99125505 A CN 99125505A CN 1297871 A CN1297871 A CN 1297871A
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- water
- chemical fertilizer
- retaining resin
- water conservation
- urea
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Abstract
The water-maintaining chemical fertilizer of the present invention is produced by using water absorbing and maintaining polymer resin, such as starch-base polyacrylamide and crosslinked sodium polyacrylate, and chemical fertilizer, such as urea, calcium superphosphate and ammonium nitrate, as material and through mixing and coating or cladding and painting treatment. The water maintaining chemical fertilizer can provide crop with nutrients and provide its root system with water and thus has high chemical fertilizer utilization. Applying the water maintaining chemical fertilizer in dry crop can raise yield, reduce chemical fertilizer consumption and lower production cost.
Description
The present invention relates to a kind of chemical fertilizer and manufacture method thereof that can absorb water and keep moisture content.
Traditional fertilizer urea or ammonium nitrate, because it runs off in soil or the nitrogen volatilization, the per-cent that is absorbed by crop only is about 30%, major part can not be absorbed and used.In the northwest, the part drought-resistant agriculture district in North China and northeast because lack of water in the soil, its effective rate of utilization is lower.For improving chemical fertilizer utilization ratio, at present main way is that fertilising back big area is irrigated, but because general lack of water in drought-resistant agriculture district and retention capacity of soil are relatively poor, most of seepage of the water after the irrigation or evaporation, the chemical fertilizer that imposes on simultaneously in the soil also can most ofly thereupon run off.Therefore, this method is the cost height not only, nor can fundamentally solve the problem that improves the chemical fertilizer effective rate of utilization.In addition, chemical fertilizer is wrapped up or the processing of filming by inorganic or organic polymer material, though can prolong the time that the chemical fertilizer performance is renderd a service, because lack of water can not fundamentally reach the purpose that improves Absorption and Utilization of Fertilizer equally.
Purpose of the present invention is exactly for overcoming above-mentioned deficiency, provide a kind of can suction, water conservation, minimizing loss of chemical fertilizer, improve chemical fertilizer utilization ratio and reduce a kind of new type chemical fertilizer of agriculture production cost.
The present invention is to be raw material with now chemical fertilizer commonly used such as urea, ammonium nitrate, normal superphosphate or diammonium phosphate etc., and doubly starch base polypropylene acyl glue, crosslinking sodium polyacrylate or the salt tolerant type water-retaining resin of (quite water-retaining resin own wt) carry out the compound parcel or coat to film handling and a kind of granular water-absorbent, the water keeping fertilizer of formation to chemical fertilizer at 200-1000 with the suction multiple.For the resin after preventing to absorb water goes mouldy, can add one or more of sterilant such as derosal, F-1991, thiophanate in right amount in soil.In addition,, increase root dribbling soil amount, also can add one or more of plant-growth regulator such as niacinamide, paclobutrazol, indolebutyric acid etc. in right amount for promoting the root system development of crop.Consider the unsuitable too high cause of agricultural cost, the best percentage composition that suction involved in the present invention, water conservation chemical fertilizer are formed should be: chemical fertilizer 98-99%, High hydrophilous resin 0.1-1%.Sterilant 0.01-0.1%, plant-growth regulator are 0.01-0.1%, certainly, comparatively special application such as Desertification drought-resistant agriculture district, soil improvement and valuable garden seedling tree etc., the weight percent of water-retaining resin can correspondingly increase, and can account for 20% at most.Simultaneously, at production multiple nutrients composition and when depositing the composite fertilizer of (containing N, P, K and various trace elements), the ratio of water-retaining resin also can correspondingly increase, but should not surpass 10%.
The present invention compares with traditional fertilizer has following advantage: (1) is because chemical fertilizer is coated with high suction, water-retaining resin, under the condition of drought and water shortage, can pass through suction, water-retaining resin absorption, enrichment, storage moisture content, around the farm crop root system, form wet environment, solve the crop water shortage problem; (2) water-retaining resin can be enclosed in chemical fertilizer wherein, and reducing runs off and decompose the nitrogen that is caused volatilizees, and improves the assimilated efficiency of chemical fertilizer; (3) owing to the raising of crop to the effective specific absorption of chemical fertilizer, be equivalent to reduce the amount of application of chemical fertilizer, reduce agriculture production cost.
The following stated embodiment has elaborated the present invention.
Embodiment 1
With the Granular Urea of 98.8Kg and the water-absorbent resin powder of 1Kg, 0.1Kg sterilant and the abundant stirring and evenly mixing of plant-growth regulator of 0.1Kg, with 100 ℃ of water vapour to mixture repeated treatments 1-3 time, each processing all should stir the mixture rapidly, make urea can not be bonded as suitable because of suction, so that water-retaining resin can evenly be coated on the chemical fertilizer surface, form the water-retaining resin film, the mixture after handling like this through the cold solarization get final product granular water conservation urea product.
Embodiment 2
With the 98.8Kg Granular Urea; 1Kg powdery water-absorbing resin; 0.1Kg sterilant and 0.1Kg plant-growth regulator put into now commonly used cylinder or tumbling disk granulator; temperature is controlled near under the urea softening temperature as 130 ℃; roll or rotate compound; can make the powdery water-absorbing resin evenly adhere to urea surface, form granular water conservation urea.
Embodiment 3
In existing carbamide granulation process commonly used, 988Kg, 136 ℃ of fused urea are with 13.7m
3/ h (12.5Kg urea/m
3) speed from nozzle, spray down, around the urea nozzle, 10 hours nozzles are set, by the methyl alcohol of 10Kg water-absorbing resin, 1Kg sterilant and 1Kg plant-growth regulator formed 50%---the aqueous solution (20-40 ℃) from 10 little nozzles with 0.1m
3The ejection of the speed of/h sprays on the urea granules surface of whereabouts equably, because the urea temperature of ejection is about 136 ℃, and after water-retaining resin solution is sprayed onto on the urea surface, the volatilization and form layer of even water-retaining resin film rapidly of first alcohol and water.
Embodiment 4
With 98Kg powder normal superphosphate; the 1Kg water-absorbent resin powder; 0.1Kg sterilant; after 0.1Kg the sticky shape starch of plant-growth regulator and 0.8Kg mixes; 100 ℃ of temperature; with existing commonly used cylinder or tumbling disk granulator, simply roll or rotate the compound granulation, get final product granular water conservation chemical fertilizer finished product.
Embodiment 5
With the Powdered urea of 50Kg, 10KgK
2SO
420Kg normal superphosphate powder; 0.1Kg sterilant, 0.1kg plant-growth regulator, 5Kg water-absorbent resin powder; 0.1kg the oxide compound of trace element or the mixture of corresponding salt (Fe, Cu, B, Mn, Mo, and rare earth); 4.7Kg sticky shape starch, 100 ℃ of temperature, with existing commonly used cylinder or rotary pelleting machine; roll or rotate the compound granulation, can get granular water conservation chemical fertilizer finished product.
Claims (4)
1. a suction, water conservation chemical fertilizer, mainly be by water-retaining resin such as the starch base polypropylene acyl glue of now using fertilizer urea, ammonium nitrate, common calcium phosphate etc. and high suction multiple always, formations such as crosslinking sodium polyacrylate or salt tolerant type water-retaining resin, it is characterized in that: water-retaining resin is wrapped up, covers or be coated with on the surface of chemical fertilizer granule, formation has the water conservation chemical fertilizer of water-retaining resin layer or film, and chemical fertilizer and water-retaining resin shared per-cent in gross weight are respectively 89-99% and 0.1-10% in its total composition.
2. according to the described suction of claim 1, water conservation chemical fertilizer, it is characterized in that: contain the sterilant of 0.01-0.1% and the plant-growth regulator of 0.01-0.1% in the water-retaining resin.
3. according to claim 1,2 described suctions, water conservation chemical fertilizer, it is characterized in that: the trace element that contains 0.01-0.1%.
4. according to the described suction of claim 1, the chemical fertilizer of water conservation is characterized in that: can add amount of colorant, as blue look, green or red, make the water conservation chemical fertilizer have color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125505A CN1297871A (en) | 1999-12-02 | 1999-12-02 | Chemical fertilizer capable of absorbing and maintaining water and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125505A CN1297871A (en) | 1999-12-02 | 1999-12-02 | Chemical fertilizer capable of absorbing and maintaining water and its production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1297871A true CN1297871A (en) | 2001-06-06 |
Family
ID=5283973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99125505A Pending CN1297871A (en) | 1999-12-02 | 1999-12-02 | Chemical fertilizer capable of absorbing and maintaining water and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1297871A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295192C (en) * | 2004-09-20 | 2007-01-17 | 中国农业科学院土壤肥料研究所 | Process for producing water preserving type film coated urea fertilizer |
| CN100448811C (en) * | 2007-12-14 | 2009-01-07 | 山东金正大生态工程股份有限公司 | Special-purpose controlled-release fertilizer coated with resin for kidney bean and preparation method thereof |
| CN102001876A (en) * | 2009-09-30 | 2011-04-06 | 深圳市芭田生态工程股份有限公司 | Preparation method for water storage fertilizer and product thereof |
| CN102101808A (en) * | 2010-11-24 | 2011-06-22 | 菏泽金正大生态工程有限公司 | Assistant water-retention and heat preservation compound for coated slow controlled-release fertilizer and preparation and application thereof |
| CN103910819A (en) * | 2013-01-04 | 2014-07-09 | 青岛鑫垚保水高新材料有限公司 | Preparation method of high-molecular water-absorbent resin(ammonium phosphate )water retention fertilizer |
| CN104557343A (en) * | 2015-02-04 | 2015-04-29 | 安徽帝元生物科技有限公司 | Retention urea |
| CN104557342A (en) * | 2015-02-04 | 2015-04-29 | 安徽帝元生物科技有限公司 | Preparation method of retention urea |
| CN104591906A (en) * | 2015-02-04 | 2015-05-06 | 马法东 | Organic calcium magnesium fertilizer and preparation method thereof |
| CN105338803A (en) * | 2013-03-15 | 2016-02-17 | 阿达玛马克西姆股份有限公司 | Artificial environment for efficient uptake of fertilizers and other agrochemicals in soil |
| CN105523844A (en) * | 2016-01-12 | 2016-04-27 | 洛阳和梦科技有限公司 | New urea compound fertilizer and preparation method thereof |
| CN105541483A (en) * | 2016-01-12 | 2016-05-04 | 洛阳和梦科技有限公司 | Cation-macromolecule compound fertilizer and preparing method thereof |
| CN105646075A (en) * | 2016-01-12 | 2016-06-08 | 洛阳和梦科技有限公司 | Novel compound phosphate fertilizer and preparation method thereof |
| CN105766593A (en) * | 2016-04-28 | 2016-07-20 | 开县安德农业科技开发有限公司 | Nutrient Soil and method for cultivation of Caulis Dendrobii |
| CN107935703A (en) * | 2017-12-04 | 2018-04-20 | 中化化肥有限公司成都研发中心 | Urinate base nitro binary compound fertilizer containing nitrogen and potassium production method |
-
1999
- 1999-12-02 CN CN99125505A patent/CN1297871A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295192C (en) * | 2004-09-20 | 2007-01-17 | 中国农业科学院土壤肥料研究所 | Process for producing water preserving type film coated urea fertilizer |
| CN100448811C (en) * | 2007-12-14 | 2009-01-07 | 山东金正大生态工程股份有限公司 | Special-purpose controlled-release fertilizer coated with resin for kidney bean and preparation method thereof |
| CN102001876A (en) * | 2009-09-30 | 2011-04-06 | 深圳市芭田生态工程股份有限公司 | Preparation method for water storage fertilizer and product thereof |
| CN102001876B (en) * | 2009-09-30 | 2014-02-19 | 深圳市芭田生态工程股份有限公司 | Preparation method for water storage fertilizer and product thereof |
| CN102101808A (en) * | 2010-11-24 | 2011-06-22 | 菏泽金正大生态工程有限公司 | Assistant water-retention and heat preservation compound for coated slow controlled-release fertilizer and preparation and application thereof |
| CN102101808B (en) * | 2010-11-24 | 2011-11-30 | 菏泽金正大生态工程有限公司 | Water-retention and heat preservation compound for coated slow controlled-release fertilizer and preparation and application thereof |
| CN103910819B (en) * | 2013-01-04 | 2016-01-13 | 青岛鑫垚地农业科技股份有限公司 | A kind of preparation method of hydroscopic high-molecular resin ammonium phosphate water-retention fertilizer |
| CN103910819A (en) * | 2013-01-04 | 2014-07-09 | 青岛鑫垚保水高新材料有限公司 | Preparation method of high-molecular water-absorbent resin(ammonium phosphate )water retention fertilizer |
| CN105338803A (en) * | 2013-03-15 | 2016-02-17 | 阿达玛马克西姆股份有限公司 | Artificial environment for efficient uptake of fertilizers and other agrochemicals in soil |
| CN104557342A (en) * | 2015-02-04 | 2015-04-29 | 安徽帝元生物科技有限公司 | Preparation method of retention urea |
| CN104591906A (en) * | 2015-02-04 | 2015-05-06 | 马法东 | Organic calcium magnesium fertilizer and preparation method thereof |
| CN104557343A (en) * | 2015-02-04 | 2015-04-29 | 安徽帝元生物科技有限公司 | Retention urea |
| CN104557343B (en) * | 2015-02-04 | 2017-07-11 | 安徽帝元生物科技有限公司 | A kind of retentivity urea |
| CN104557342B (en) * | 2015-02-04 | 2017-08-29 | 安徽帝元生物科技有限公司 | A kind of preparation method of retentivity urea |
| CN105523844A (en) * | 2016-01-12 | 2016-04-27 | 洛阳和梦科技有限公司 | New urea compound fertilizer and preparation method thereof |
| CN105541483A (en) * | 2016-01-12 | 2016-05-04 | 洛阳和梦科技有限公司 | Cation-macromolecule compound fertilizer and preparing method thereof |
| CN105646075A (en) * | 2016-01-12 | 2016-06-08 | 洛阳和梦科技有限公司 | Novel compound phosphate fertilizer and preparation method thereof |
| CN105766593A (en) * | 2016-04-28 | 2016-07-20 | 开县安德农业科技开发有限公司 | Nutrient Soil and method for cultivation of Caulis Dendrobii |
| CN107935703A (en) * | 2017-12-04 | 2018-04-20 | 中化化肥有限公司成都研发中心 | Urinate base nitro binary compound fertilizer containing nitrogen and potassium production method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |