CN101973815B - Full-nutrition drought-resistant water-retaining fertilizer and preparation method thereof - Google Patents
Full-nutrition drought-resistant water-retaining fertilizer and preparation method thereof Download PDFInfo
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- CN101973815B CN101973815B CN 201010507535 CN201010507535A CN101973815B CN 101973815 B CN101973815 B CN 101973815B CN 201010507535 CN201010507535 CN 201010507535 CN 201010507535 A CN201010507535 A CN 201010507535A CN 101973815 B CN101973815 B CN 101973815B
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Abstract
The invention discloses a full-nutrition drought-resistant water-retaining fertilizer and a preparation method thereof, which relate to the technical field of agricultural fertilizer production. The full-nutrition drought-resistant water-retaining fertilizer comprises a mixed water-retaining fertilizer and an auxiliary water-retaining fertilizer, wherein the mixed water-retaining fertilizer is prepared from the following materials in part by weight: 1 part of water-retaining agent, 5 to 25 parts of urea and 5 to 10 parts of filling material; and the auxiliary water-retaining fertilizer is prepared from the following materials in part by weight: 1 part of monoammonium phosphate, 3 to 6 parts of potassium sulfate powder and 2 to 5 parts of superphosphate. The preparation method has the characteristics of simple preparation process, full nutrition, capacity of efficiently retaining water in soil, and the like, and is suitable for drought tolerant crops such as fruit trees, drought tolerant grain crops, vegetables, amphisarca and the like in areas with a small number of rainfall or uneven rainfall distribution in China.
Description
Technical field
The present invention relates to agricultural fertilizer production technical field, particularly a kind of full nutrition drought-resistant water-retaining fertilizer and preparation method thereof.
Background technology
In agriculture production, the basis of crop good harvest is sufficient moisture and nutrient, but the problem that all has rainfall maldistribution among a year at the most areas of China, so how will storing in too much water effective in rainy season, for crop in dry season or season short of rain, allowing simultaneously moisture follow nutrient can keep synchronous release, is the problem that urgent need will solve in order to can allow dry-land crops obtain stable high yield.In the last few years, a little water-loss reducer of soil that are used for the fields such as desertification of land improvement, farm-forestry crop plantation, afforestation have appearred on the market, its water-absorbing-retaining effect is better, but because the consumption of this water-loss reducer of soil is less, when using separately, be administered to and be difficult to assurance in the soil evenly, so when using, generally all need to add stopping composition or be mixed in the fertilizer to use together.Chinese patent disclosed " a kind of water keeping fertilizer and preparation method thereof " (application number is 200710117740.3), the preparation method of this water keeping fertilizer be Acrylic Acid Monomer is partly neutralized with potassium hydroxide solution after, regulate the pH value between the 4-9 with ammoniacal liquor, then add successively acrylamide, cation compound, linking agent, initiator, in reactor, constantly stir, under the nitrogen protection, carry out rapid reaction, make at last High hydrophilous resin; Then 90-99wt% (dry weight) super absorbent resin is mixed composite making with 1-10wt% (dry weight) sequestrant; The water conservation effect of this water-retention fertilizer is very remarkable, but its manufacture craft is comparatively complicated, and, also need add the number of chemical material, edatope is had certain impact.Another Chinese patent disclosed " a kind of water keeping fertilizer and production method thereof " (publication number is CN101747118A), its water keeping fertilizer comprises biological organic fertilizer, water-holding agent, vitriolate of tartar, bicarbonate of ammonia, calcium superphosphate is totally 5 kinds of components, main production process is first with wheat bran, corn, grass carbon, the cattle and sheep excrement mixes, rear access compound microecological microbial inoculum stirs, then add warm water and regulate humidity, closing anaerobic is fermented into biological organic fertilizer, again by above-mentioned component, the order adding is mixed in the stirrer stirs, through granulation, oven dry, sub-sieve, metering, packing is finished product; Although water conservation effect and the fertilizer efficiency of this water-retention fertilizer are very remarkable, the same slightly complicated of its manufacture craft.
Summary of the invention
For the existing above-mentioned deficiency of prior art, technical problem to be solved by this invention provides that a kind of manufacture craft is simple, comprehensive nutrition, can effectively keep fertilizer of soil moisture and preparation method thereof.
The technical solution used in the present invention is a kind of full nutrition drought-resistant water-retaining fertilizer of invention, comprises mixing water-retention fertilizer and auxiliary water-retention fertilizer;
Described mixing water-retention fertilizer is formulated by the following raw materials according weight share:
Water-holding agent 1 urea 5-25 stopping composition 5-10;
Described auxiliary water-retention fertilizer is formulated by the following raw materials according weight share:
Monoammonium phosphate 1 kalium slfuricum powder 3-6 calcium superphosphate 2-5.
Simultaneously, provide a kind of full nutrition drought-resistant water-retaining fertilizer preparation method:
The preparation method of A, mixing water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively water-holding agent, urea and stopping composition by ratio requirement, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, pack packed mixing water-retention fertilizer;
The preparation method of B, auxiliary water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively monoammonium phosphate, kalium slfuricum powder and calcium superphosphate by ratio requirement, then, behind monoammonium phosphate, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, the pack packed auxiliary water-retention fertilizer;
C, the mixing water-retention fertilizer of pressing ratio requirement difference bag taking dress and packed auxiliary water-retention fertilizer attach together and namely help nutrition drought-resistant water-retaining fertilizer.
A kind of full nutrition drought-resistant water-retaining fertilizer preparation method of optimization also is provided:
The preparation method of A, mixing water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively water-holding agent, urea and stopping composition by ratio requirement, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, granular mixing water-retention fertilizer;
The preparation method of B, auxiliary water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively monoammonium phosphate, kalium slfuricum powder and calcium superphosphate by ratio requirement, then, behind monoammonium phosphate, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, granular auxiliary water-retention fertilizer;
C, get respectively granular mixing water-retention fertilizer and granular auxiliary water-retention fertilizer by ratio requirement, nutrition drought-resistant water-retaining fertilizer is namely helped in the mixing pack.
Full nutrition drought-resistant water-retaining fertilizer of the present invention and preparation method thereof, be made into the mixing water-retention fertilizer with urea, water-holding agent and stopping composition, be made into auxiliary water-retention fertilizer with monoammonium phosphate, kalium slfuricum powder and calcium superphosphate, then will mix the collocation of water-retention fertilizer and auxiliary water-retention fertilizer and use, so that the nitrogen of fertilizer, phosphorus, potassium nutrition composition are more comprehensive; Simultaneously, the water-holding agent that adds in the fertilizer, its water-intake rate can reach more than the decades of times, so can effectively keep the moisture in the soil; In addition, it is made is to adopt the techniques such as conventional pulverizing and granulation, and therefore, its manufacture craft is comparatively simple.
Through the test on the various dry-land crops of Yongzhou Area more than 2 years, full nutrition drought-resistant water-retaining fertilizer of the present invention can absorb and store the moisture of 40 times of the own wts content 8% of water-holding agent (this moment), and its effect that dry-land crops is produced is as follows:
1, water storage: in rainy season full nutrition drought-resistant water-retaining fertilizer of the present invention is manured into soil on request and makes base fertilizer or topdress, rainy season after finishing by the end of June, experience July short of rain or without rainy season, in August, the season short of rain of September is at citrus, corn, slow ripe watermelon, grape is on the crops such as vegetables, do not having in rainwater and the situation without irrigation, the following soil layer soil moisture content of 10cm is fair, the following moisture content 80% of 20cm, and the enough plant growths of available water need; On the fruit tree crops such as grape, citrus, need not pour water dry season, but yield and quality rises synchronously; Greatly reduced frequency of irrigation vegetable crop, one season vegetables only need pour water and one get final product to twice.
2, for nutrient: Yongzhou Area seven, eight, nine these three months non-irrigated native economic crops growing peaks just, need a large amount of moisture and nutrient, full nutrition drought-resistant water-retaining fertilizer material of the present invention can continue to provide nitrogen nutrition, and can improve the urea utilization ratio to 60-70%; Simultaneously because sufficient moisture is arranged, execute the crop utilization that offers that auxiliary water-retention fertilizer below water-holding agent also can continue.
3, improve output: with the citrus in garden, use the volume increase 40% that the ratio conventional fertilizer application of full nutrition drought-resistant water-retaining fertilizer material of the present invention is not poured water, than conventional fertilizer application and the volume increase 20% of pouring water.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Full nutrition drought-resistant water-retaining fertilizer of the present invention forms by mixing water-retention fertilizer and auxiliary water-retention fertilizer two portions, and according to the shape of product that mixes water-retention fertilizer, its preparation method has following two kinds:
1, the full nutrition drought-resistant water-retaining fertilizer preparation method of powdery type:
The preparation method of A, mixing water-retention fertilizer is as follows: take by weighing respectively water-holding agent by ratio requirement and (can adopt water-loss reducer of soil or other water-holding agent, below each embodiment all adopt water-loss reducer of soil), urea and stopping composition (packing material that adopts the Chemical Mixed Fertilizer of neutral or non-alkalescence to use) be for subsequent use, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, pack packed mixing water-retention fertilizer;
The preparation method of B, auxiliary water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively monoammonium phosphate, kalium slfuricum powder and calcium superphosphate by ratio requirement, then, behind monoammonium phosphate, kalium slfuricum powder and calcium superphosphate together mixing, (this example adopts the pair roller Squeezinggranulator to send into prilling granulator, also can adopt other granulating equipment) in carry out granulation, make the particle of 2-6mm particle diameter, the pack packed auxiliary water-retention fertilizer;
C, the mixing water-retention fertilizer of pressing ratio requirement difference bag taking dress and packed auxiliary water-retention fertilizer attach together and namely help nutrition drought-resistant water-retaining fertilizer.
2, the full nutrition drought-resistant water-retaining fertilizer preparation method of granule type:
The preparation method of A, mixing water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively water-holding agent, urea and stopping composition by ratio requirement, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, granular mixing water-retention fertilizer;
The preparation method of B, auxiliary water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively monoammonium phosphate, kalium slfuricum powder and calcium superphosphate by ratio requirement, then, behind monoammonium phosphate, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, granular auxiliary water-retention fertilizer;
C, get respectively granular mixing water-retention fertilizer and granular auxiliary water-retention fertilizer by ratio requirement, nutrition drought-resistant water-retaining fertilizer is namely helped in the mixing pack.
Below each embodiment all take the full nutrition drought-resistant water-retaining fertilizer of powdery type as example.
Embodiment one:
1, it is for subsequent use that weight share takes by weighing respectively 1 part of water-holding agent, 25 parts in urea, 5 parts of stopping composition, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, again according to respectively pack of the weight of a unit (such as 25kg etc.), packed mixing water-retention fertilizer for subsequent use;
2, it is for subsequent use that weight share takes by weighing respectively 1 part of monoammonium phosphate, 6 parts of kalium slfuricum powders and 2 parts of calcium superphosphate, then, behind monoammonium phosphate for subsequent use, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the pair roller Squeezinggranulator, make the particle of 2-6mm particle diameter, equally also according to respectively pack of the weight of a unit (such as 25kg etc.), packed auxiliary water-retention fertilizer for subsequent use;
3, get 1 bag of above-mentioned 1 bag of packed mixing water-retention fertilizer for subsequent use, packed auxiliary water-retention fertilizer, merge in the bag of packing into, namely become full nutrition drought-resistant water-retaining fertilizer.
During use, for yearly plant, such as upland grain, vegetables, melon and fruit etc., first in soil, open the dark strip groove of 20-30cm, will assist water-retention fertilizer to apply equably bottom of trench, then, cover the thick fine earth of one deck 3-5cm, apply equably the mixing water-retention fertilizer on earthing, earthing is filled and led up dressing furrow again, can sow or plant again.For fruit tree kinds such as oranges and tangerines, then in soil, open first the dark strip groove of 20-30cm or annular groove and (that is: open strip groove at plantation railway carriage or compartment face two edge drips, or open annular groove around every fruit tree drip), to assist again water-retention fertilizer to apply equably bottom of trench, then, cover the thick fine earth of one deck 3-5cm, apply equably the mixing water-retention fertilizer again on earthing, earthing is filled and led up dressing furrow and is got final product again.The consumption of its fertilizer, follow following principle: namely in every mu of used fertilizer of area, contained water conservation dosage should reach 1.5-2.5kg.
Embodiment two:
1, it is for subsequent use that weight share takes by weighing respectively 1 part of water-holding agent, 5 parts in urea, 10 parts of stopping composition, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, again according to respectively pack of the weight of a unit (such as 25kg etc.), packed mixing water-retention fertilizer for subsequent use;
2, it is for subsequent use that weight share takes by weighing respectively 1 part of monoammonium phosphate, 3 parts of kalium slfuricum powders and 5 parts of calcium superphosphate, then, behind monoammonium phosphate for subsequent use, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the pair roller Squeezinggranulator, make the particle of 2-6mm particle diameter, equally also according to respectively pack of the weight of a unit (such as 25kg etc.), packed auxiliary water-retention fertilizer for subsequent use;
3, get 1 bag of above-mentioned 1 bag of packed mixing water-retention fertilizer for subsequent use, packed auxiliary water-retention fertilizer, merge in the bag of packing into, namely become full nutrition drought-resistant water-retaining fertilizer.
Using method is the same.
Embodiment three:
1, it is for subsequent use that weight share takes by weighing respectively 1 part of water-holding agent, 15 parts in urea, 8 parts of stopping composition, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, again according to respectively pack of the weight of a unit (such as 25Kg etc.), packed mixing water-retention fertilizer for subsequent use;
2, it is for subsequent use that weight share takes by weighing respectively 1 part of monoammonium phosphate, 5 parts of kalium slfuricum powders and 4 parts of calcium superphosphate, then, behind monoammonium phosphate for subsequent use, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the pair roller Squeezinggranulator, make the particle of 2-6mm particle diameter, equally also according to respectively pack of the weight of a unit (such as 25Kg etc.), packed auxiliary water-retention fertilizer for subsequent use;
3, get 1 bag of above-mentioned 1 bag of packed mixing water-retention fertilizer for subsequent use, packed auxiliary water-retention fertilizer, merge in the bag of packing into, namely become full nutrition drought-resistant water-retaining fertilizer.
Using method is the same.
Embodiment four:
1, it is for subsequent use that weight share takes by weighing respectively 1 part of water-holding agent, 9 parts in urea, stopping composition part, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, again according to respectively pack of the weight of a unit (such as 25Kg etc.), packed mixing water-retention fertilizer for subsequent use;
2, it is for subsequent use that weight share takes by weighing respectively 1 part of monoammonium phosphate, 6 parts of kalium slfuricum powders and 3 parts of calcium superphosphate, then, behind monoammonium phosphate for subsequent use, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the pair roller Squeezinggranulator, make the particle of 2-6mm particle diameter, equally also according to respectively pack of the weight of a unit (such as 25kg etc.), packed auxiliary water-retention fertilizer for subsequent use;
3, get 1 bag of above-mentioned 1 bag of packed mixing water-retention fertilizer for subsequent use, packed auxiliary water-retention fertilizer, merge in the bag of packing into, namely become full nutrition drought-resistant water-retaining fertilizer.
Using method is the same.
Full nutrition drought-resistant water-retaining fertilizer of the present invention is applicable to the on the low side or dry-land crops uses such as the fruit tree in rainwater skewness area, non-irrigated grain, vegetables and melon and fruit of rainwater in all parts of the country.
Claims (2)
1. the preparation method of a full nutrition drought-resistant water-retaining fertilizer is characterized in that: comprise and mix water-retention fertilizer and auxiliary water-retention fertilizer;
Described mixing water-retention fertilizer is formulated by the following raw materials according weight share:
Water-holding agent 1 urea 5-25 stopping composition 5-10;
Described auxiliary water-retention fertilizer is formulated by the following raw materials according weight share:
Monoammonium phosphate 1 kalium slfuricum powder 3-6 calcium superphosphate 2-5;
The preparation method is as follows:
The preparation method of A, mixing water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively water-holding agent, urea and stopping composition by ratio requirement, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, pack packed mixing water-retention fertilizer;
The preparation method of B, auxiliary water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively monoammonium phosphate, kalium slfuricum powder and calcium superphosphate by ratio requirement, then, behind monoammonium phosphate, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, the pack packed auxiliary water-retention fertilizer;
C, the mixing water-retention fertilizer of pressing ratio requirement difference bag taking dress and packed auxiliary water-retention fertilizer attach together and namely help nutrition drought-resistant water-retaining fertilizer.
2. the preparation method of a full nutrition drought-resistant water-retaining fertilizer is characterized in that: comprise and mix water-retention fertilizer and auxiliary water-retention fertilizer;
Described mixing water-retention fertilizer is formulated by the following raw materials according weight share:
Water-holding agent 1 urea 5-25 stopping composition 5-10;
Described auxiliary water-retention fertilizer is formulated by the following raw materials according weight share:
Monoammonium phosphate 1 kalium slfuricum powder 3-6 calcium superphosphate 2-5;
The preparation method is as follows:
The preparation method of A, mixing water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively water-holding agent, urea and stopping composition by ratio requirement, then water-holding agent, urea are crushed to respectively 80-200 purpose particulate, then with the abundant mixing of stopping composition, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, granular mixing water-retention fertilizer;
The preparation method of B, auxiliary water-retention fertilizer is as follows: it is for subsequent use to take by weighing respectively monoammonium phosphate, kalium slfuricum powder and calcium superphosphate by ratio requirement, then, behind monoammonium phosphate, kalium slfuricum powder and calcium superphosphate together mixing, send into and carry out granulation in the prilling granulator, make the particle of 2-6mm particle diameter, granular auxiliary water-retention fertilizer;
C, get respectively granular mixing water-retention fertilizer and granular auxiliary water-retention fertilizer by ratio requirement, nutrition drought-resistant water-retaining fertilizer is namely helped in the mixing pack.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1243858A (en) * | 1999-06-28 | 2000-02-09 | 吉林大学 | Water-preserving agent for preventing water leakage of dry or semi-dry farmland |
CN1361090A (en) * | 2000-12-29 | 2002-07-31 | 广东工业大学 | Drought-resisting water-maintaining multifunctional compoiste fertilizer and its production process |
CN1537834A (en) * | 2003-04-16 | 2004-10-20 | 合肥新峰建材有限责任公司 | Slow-releasing antidrought composite fertilizer and its manufacturing method |
CN101234919A (en) * | 2008-02-29 | 2008-08-06 | 师进 | High-activity biological water-keeping slow release composite fertilizer and preparation method thereof |
CN101792354A (en) * | 2010-04-07 | 2010-08-04 | 中盐安徽红四方股份有限公司 | Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1243858A (en) * | 1999-06-28 | 2000-02-09 | 吉林大学 | Water-preserving agent for preventing water leakage of dry or semi-dry farmland |
CN1361090A (en) * | 2000-12-29 | 2002-07-31 | 广东工业大学 | Drought-resisting water-maintaining multifunctional compoiste fertilizer and its production process |
CN1537834A (en) * | 2003-04-16 | 2004-10-20 | 合肥新峰建材有限责任公司 | Slow-releasing antidrought composite fertilizer and its manufacturing method |
CN101234919A (en) * | 2008-02-29 | 2008-08-06 | 师进 | High-activity biological water-keeping slow release composite fertilizer and preparation method thereof |
CN101792354A (en) * | 2010-04-07 | 2010-08-04 | 中盐安徽红四方股份有限公司 | Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same |
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