CN102557811A - Water-retaining slow-release fertilizer - Google Patents
Water-retaining slow-release fertilizer Download PDFInfo
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- CN102557811A CN102557811A CN2010105845010A CN201010584501A CN102557811A CN 102557811 A CN102557811 A CN 102557811A CN 2010105845010 A CN2010105845010 A CN 2010105845010A CN 201010584501 A CN201010584501 A CN 201010584501A CN 102557811 A CN102557811 A CN 102557811A
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Abstract
The invention relates to a water-retaining slow-release fertilizer which comprises, by weight, 55 to 65 of nitrogen, phosphate and potash chemical fertilizer raw materials, 20 to 25 of a weathered coal humic acid cementatious bonding material, 10 to 15 of a coating material and 5 to 15 of a water-retaining agent, wherein, in the nitrogen, phosphate and potash chemical fertilizer raw materials, nitrogen refers to urea, phosphate refers to monoammonium phosphate or calcium phosphate and potash refers to potassium chloride or potassium sulfate, the coating material is a slightly-water-soluble inorganic nutritional coating material or a citrate-soluble inorganic nutritional coating material, and the water-retaining agent is a starch water-retaining agent, a cellulose water-retaining agent or a synthetic polymer water-retaining agent. According to the invention, the measure of wrapping a slow-release fertilizer with a slow-release fertilizer enables a slow-release effect and a utilization rate of the water-retaining slow-release fertilizer to be enhanced, and the water-retaining slow-release fertilizer can be slowly released according to crops' demands for the fertilizer; meanwhile, the water-retaining agent is added, which enables the fertilizer to have strong water absorption and water retention performances and to form a granular structure in soil, thereby improving water penetration and permeability of soil.
Description
Technical field
The present invention relates to a kind of water-holding slow-release fertilizer.
Background technology
At present, the used coated fertilizer of enveloped slow release fertilizer of development mainly contains two types both at home and abroad, and one type is organic high molecular polymer (for example resin polyolefins), and the 2nd, the inorganic materials of slightly water-soluble or microsolubility (like sulphur, ground phosphate rock, fused(calcium magnesium)phosphate etc.).The making of high polymer film-coated type slow release fertilizer needs special coating tower and solvent, and the coated fertilizer price is more expensive, and the production process cost is than higher, and coated fertilizer decomposes easy residual slowly in soil.But the controlled release properties of macromolecule polymeric material is relatively good.High polymer film-coated type slow release fertilizer is higher because of price, is used for garden crop, lawn, golf course and ornamental plant etc. more.The inorganic materials enveloped slow release fertilizer of slightly water-soluble or microsolubility can be with plain disk or drum granulating equipment making, and the production process cost is low, and the fertilizer price is low, but the controlled release properties of inorganic materials coating is relatively poor, and how not ideal enough the slow release effect of fertilizer is.
Because the slow release fertilizer nutrient releasing speed is slow, can not cause the soil salt excessive concentration, thereby slow release fertilizer uses with the water-holding agent blending; Can not influence water-holding agent water-absorbing-retaining ability, on the contrary, water-holding agent also can adsorb the part nutrient that slow release fertilizer discharged in absorption moisture content; Discharge again when crop needs by the time; The effect that reach nutrient secondary slowly-releasing, steadily discharges, the absorption releasing mechanism of this liquid manure one has improved the utilization ratio of nutrient and moisture.
Summary of the invention
In order to overcome above defective, the technical problem that the present invention will solve is: propose that a kind of controlled-release effect is good, water conservation joint fertilizer, long-acting raising the output, lower-cost water-holding slow-release fertilizer.
The technical scheme that the present invention adopted is: a kind of water-holding slow-release fertilizer, the ratio of weight and number of each component is: nitrogen, phosphorus, potassium fertilizer raw material 55-65, the glued bonding material 20-25 of weathered coal humic acids, coated fertilizer 10-15, water-holding agent 5-15.
According to another preferred embodiment, a kind of water-holding slow-release fertilizer further comprises described nitrogen, phosphorus, potassium fertilizer raw material, and nitrogen is urea, and phosphorus is monoammonium phosphate or calcium phosphate, and potassium is Repone K or vitriolate of tartar.
According to another preferred embodiment, a kind of water-holding slow-release fertilizer comprises that further described coated fertilizer is water microsolubility inorganic nutrients coated fertilizer or solubility in citric acid inorganic nutrients coated fertilizer.
According to another preferred embodiment, a kind of water-holding slow-release fertilizer further comprises and comprises also in the said water-holding slow-release fertilizer that ratio of weight and number is the Water Quenching Slag of 5-10.
According to another preferred embodiment, a kind of water-holding slow-release fertilizer comprises that further said Water Quenching Slag is the blast furnace ironmaking Water Quenching Slag of calcic, magnesium, silicon, copper, manganese.
According to another preferred embodiment, a kind of water-holding slow-release fertilizer further comprises and also contains the plant growth hormones that parts by weight are 200-800ppm in the said water-holding slow-release fertilizer.
According to another preferred embodiment, a kind of water-holding slow-release fertilizer comprises that further said plant growth hormones is a root-inducing powder.
According to another preferred embodiment, a kind of water-holding slow-release fertilizer comprises that further said water-holding agent is that starch is water-holding agent, cellulose-based water-holding agent or synthetic polymer water-holding agent.
The invention has the beneficial effects as follows: the present invention adopts the measure of " with slow-release fertilizer bag slow-release fertilizer ", has strengthened the slow release effect of fertilizer, has improved fertilizer utilization ratio; On nutrient, can need fertile slowly release, in farming, can simplify agricultural and decide, reduce or remit secondary environmental pollution by crop; It is the compound slow release fertilizer of a kind of multi-element multifunctional type organic-inorganic; Simultaneously, add water-holding agent, not only water-absorbent, water-retentivity are strong; And it can form crumb structure in soil, and soil water permeability, ventilation property are strengthened; Its manufacturing technology technology is simple, easy handling, and it is low to produce investment, has reduced the production cost of film-coated and slow release fertilizer, and it is wide to have raw material sources, and the fertiliser granulates physical strength is high, deliquescence not, transports, uses advantages such as convenient, has a extensive future aborning.
Embodiment
Combine accompanying drawing and preferred embodiment that the present invention is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, substruction of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
A kind of water-holding slow-release fertilizer, the ratio of weight and number of each component is: nitrogen, phosphorus, potassium fertilizer raw material 55-65, the glued bonding material 20-25 of weathered coal humic acids; Coated fertilizer 10-15; Water-holding agent 5-15, described nitrogen, phosphorus, potassium fertilizer raw material, nitrogen are urea; Phosphorus is monoammonium phosphate or calcium phosphate; Potassium is Repone K or vitriolate of tartar, and described coated fertilizer is water microsolubility inorganic nutrients coated fertilizer or solubility in citric acid inorganic nutrients coated fertilizer, and said water-holding agent is that starch is water-holding agent, cellulose-based water-holding agent or synthetic polymer water-holding agent.Wherein, also contain the plant growth hormones that parts by weight are 200-800ppm in the said water-holding slow-release fertilizer, said plant growth hormones is a root-inducing powder.
Preparing method of the present invention comprises the steps:
1. raw materials mix: with nitrogen, phosphorus, potassium fertilizer raw material, the glued bonding material of weathered coal humic acids, water-holding agent, Water Quenching Slag, the abundant mixing of plant growth hormones, and add the water of raw material gross weight 8 one 12%, make this raw mix have certain humidity;
2. with raw mix granulation in pelletizing disks machine or rotary drum granulator of step 1 gained;
3. the material after the granulation is sent rotary drying drum to and is carried out drying;
4. will be less than after the powder thing of 2mm and the macrobead screening greater than 5mm, all as returning charge, circulation re-uses;
5. will in granulating disc, add entry microsolubility or structure dissolubility inorganic nutrients coated fertilizer less than the particle of 5mm greater than 2mm, the coating that rolls, oven dry or air-dry is finished product.
In mixing process, added water and the humidity that is reached do not need yet unnecessary measurement accurately, only need range estimation moistening, help granulation and get final product.
Water-holding agent is claimed super strength water absorbent or hydroscopic high-molecular resin again, and it is a kind of macromolecular material with specific function.Water-holding agent not only water-absorbent, water-retentivity is very good, and it can form crumb structure in soil, makes soil water permeability, ventilation property strengthen, and the temperature difference in soil daytime and evening is dwindled; It can also absorb fertilizer, agricultural chemicals simultaneously, makes it to discharge slowly, strengthens fertilizer, agricultural chemicals effect.Can improve the soil, water conservation is anti-early, creates good envrionment conditions for plant seed germination, growth and development of plants.
The waste residue that produces when Water Quenching Slag is blast furnace ironmaking is claimed blast furnace slag again.The chemical ingredients of blast furnace slag is mainly quicklime, Natural manganese dioxide, silicon-dioxide, aluminum oxide and manganese oxide etc.Blast furnace slag is through the shrend chilling; Have little time to form crystallizable mineral and be stored in wherein chemical energy in the vitreum of formation, thereby have higher lateral reactivity, therefore; Blast furnace slag is that a kind of silico-calcium farming is fertile, and many compositions such as wherein contained copper, manganese are the trace element fertilizers that farm crop need.The invention property Water Quenching Slag is used for water-holding slow-release fertilizer, the waste residue when not only making blast furnace ironmaking has obtained utilization, and can improve the effect of water-holding slow-release fertilizer greatly.
Technological core of the present invention is that the inorganic controlled-release material of utilization slightly water-soluble or microsolubility wraps up with the organic composite slow release fertilizer of organism agglutinating; Carry out coating and glued dual controlled release; Overcome the shortcoming of single inorganic materials coating or single glued controlled release properties difference; The nutrient controlled-release effect of the fertilizer of developing is strengthened greatly; And useful plain disk or drum granulating equipment can be made the fertilizer of high sustained release performance, have that cost is low, controlled-release effect is good, eco-friendly characteristics, are particularly useful for field crop.Inorganic coated fertilizer of the present invention mainly contains ground phosphate rock and fused(calcium magnesium)phosphate, divalent metal phosphoric acid by sylvite etc.; Glued slow-release material mainly contains the weathered coal humic acids material of slowly-releasing processing, and coating agglutinating chemical fertilizer mainly is common urea nitrogenous fertilizer, phosphate fertilizer and potash fertilizer and trace element fertilizer in other.
Principle of the present invention is as a kind of natural organic high molecular compound according to humic acid; Contain C; H. O; N. element such as S and aromatic proton, acidic group, through base, Suo Ji, group base, You Kunji, methoxyl group isoreactivity group; These chemical functionals group has determined humic acid to have slightly acidic, wetting ability, ion exchangeable, complexing, oxidation-reduction quality and physiologically active etc., can pass through chemistry such as gluing, bonding, hydrogen bond, absorption and complexing and physical action and other material (like the yin, yang ion, little organic molecule etc.) the more firm composite structure of formation that combines under certain condition.After fully mixing reacts after humic acid and the common chemical fertilizer raw material pulverizing, be machined to particulate state with disk or drum granulating, this fertiliser granulates hardness is big, has certain slow-releasing, is an a kind of multi-functional organic inorganic composite fertilizer.In order to strengthen the sustained release performance of fertilizer, be core with this fertiliser granulates again, slightly water-soluble or microsolubility inorganic materials are that coated fertilizer carries out coating, have formed the glued double-cotrolled type composite slow release fertilizer of coating.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, must confirm its technical scope according to the claim scope.
Claims (8)
1. water-holding slow-release fertilizer, it is characterized in that: the ratio of weight and number of each component is: nitrogen, phosphorus, potassium fertilizer raw material 55-65, the glued bonding material 20-25 of weathered coal humic acids, coated fertilizer 10-15, water-holding agent 5-15.
2. according to claim 1, it is characterized in that: described nitrogen, phosphorus, potassium fertilizer raw material, nitrogen are urea, and phosphorus is monoammonium phosphate or calcium phosphate, and potassium is Repone K or vitriolate of tartar.
3. a kind of water-holding slow-release fertilizer according to claim 1 is characterized in that: described coated fertilizer is water microsolubility inorganic nutrients coated fertilizer or solubility in citric acid inorganic nutrients coated fertilizer.
4. a kind of water-holding slow-release fertilizer according to claim 1 is characterized in that: comprise also in the said water-holding slow-release fertilizer that ratio of weight and number is the Water Quenching Slag of 5-10.
5. a kind of water-holding slow-release fertilizer according to claim 4 is characterized in that: said Water Quenching Slag is the blast furnace ironmaking Water Quenching Slag of calcic, magnesium, silicon, copper, manganese.
6. a kind of water-holding slow-release fertilizer according to claim 1 is characterized in that: also contain the plant growth hormones that parts by weight are 200-800ppm in the said water-holding slow-release fertilizer.
7. a kind of water-holding slow-release fertilizer according to claim 6 is characterized in that: said plant growth hormones is a root-inducing powder.
8. a kind of water-holding slow-release fertilizer according to claim 1 is characterized in that: said water-holding agent is that starch is water-holding agent, cellulose-based water-holding agent or synthetic polymer water-holding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105845010A CN102557811A (en) | 2010-12-13 | 2010-12-13 | Water-retaining slow-release fertilizer |
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| CN2010105845010A CN102557811A (en) | 2010-12-13 | 2010-12-13 | Water-retaining slow-release fertilizer |
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| CN102557811A true CN102557811A (en) | 2012-07-11 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924139A (en) * | 2012-10-11 | 2013-02-13 | 安徽三星化工有限责任公司 | Slow release bulk blend fertilizer and preparation method thereof |
| CN102976863A (en) * | 2012-12-29 | 2013-03-20 | 广东大众农业科技股份有限公司 | Water-retention and slow-release fertilizer |
| CN103012012A (en) * | 2012-12-10 | 2013-04-03 | 武汉纺织大学 | Production methods of water-retentive biodegradable fertilizer |
| CN103497022A (en) * | 2013-10-14 | 2014-01-08 | 四川大学 | Controlled release mixed and compound fertilizer and preparation method thereof |
| CN103626577A (en) * | 2013-11-08 | 2014-03-12 | 苏州仁成生物科技有限公司 | Long-acting sustained-release biological fertilizer and preparation method thereof |
| CN105906433A (en) * | 2016-05-02 | 2016-08-31 | 张慧 | Compound fertilizer balanced in releasing |
| CN105948899A (en) * | 2016-05-02 | 2016-09-21 | 张慧 | Balanced compound fertilizer |
| CN105985159A (en) * | 2015-02-12 | 2016-10-05 | 张守仕 | Water-retention type bag-controlled slow-release fertilizer for forestry fruit |
| CN106146137A (en) * | 2016-06-03 | 2016-11-23 | 辽宁东萌肥业科技有限公司 | Long-acting organic-inorganic complex fertilizer of drought-resistant water-preserving and preparation method thereof |
| CN107417417A (en) * | 2017-09-05 | 2017-12-01 | 陈芳 | A kind of root-inducing powder that adds can take root the diammonium phosphate fertilizer of strengthening root low-temperature resistance |
| PL424927A1 (en) * | 2018-03-16 | 2019-09-23 | Akademia Techniczno-Humanistyczna W Bielsku-Białej | Modified cellulose granules and method for producing modified cellulose granules |
| CN111662130A (en) * | 2020-07-23 | 2020-09-15 | 河北绿旺生态肥有限公司 | Slow-release ecological fertilizer and preparation method thereof |
| CN114568253A (en) * | 2022-01-21 | 2022-06-03 | 瑞派尔(宜昌)科技集团股份有限公司 | Anti-impact ecological planting particle |
-
2010
- 2010-12-13 CN CN2010105845010A patent/CN102557811A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924139B (en) * | 2012-10-11 | 2014-01-15 | 安徽三星化工有限责任公司 | Slow release bulk blend fertilizer and preparation method thereof |
| CN102924139A (en) * | 2012-10-11 | 2013-02-13 | 安徽三星化工有限责任公司 | Slow release bulk blend fertilizer and preparation method thereof |
| CN103012012A (en) * | 2012-12-10 | 2013-04-03 | 武汉纺织大学 | Production methods of water-retentive biodegradable fertilizer |
| CN103012012B (en) * | 2012-12-10 | 2014-07-23 | 武汉纺织大学 | Production methods of water-retentive biodegradable fertilizer |
| CN102976863B (en) * | 2012-12-29 | 2014-10-08 | 广东大众农业科技股份有限公司 | Water-retention and slow-release fertilizer |
| CN102976863A (en) * | 2012-12-29 | 2013-03-20 | 广东大众农业科技股份有限公司 | Water-retention and slow-release fertilizer |
| CN103497022A (en) * | 2013-10-14 | 2014-01-08 | 四川大学 | Controlled release mixed and compound fertilizer and preparation method thereof |
| CN103626577B (en) * | 2013-11-08 | 2016-03-09 | 苏州仁成生物科技有限公司 | A kind of long-acting slow control bio-feritlizer and preparation method thereof |
| CN103626577A (en) * | 2013-11-08 | 2014-03-12 | 苏州仁成生物科技有限公司 | Long-acting sustained-release biological fertilizer and preparation method thereof |
| CN105985159A (en) * | 2015-02-12 | 2016-10-05 | 张守仕 | Water-retention type bag-controlled slow-release fertilizer for forestry fruit |
| CN105906433A (en) * | 2016-05-02 | 2016-08-31 | 张慧 | Compound fertilizer balanced in releasing |
| CN105948899A (en) * | 2016-05-02 | 2016-09-21 | 张慧 | Balanced compound fertilizer |
| CN106146137A (en) * | 2016-06-03 | 2016-11-23 | 辽宁东萌肥业科技有限公司 | Long-acting organic-inorganic complex fertilizer of drought-resistant water-preserving and preparation method thereof |
| CN107417417A (en) * | 2017-09-05 | 2017-12-01 | 陈芳 | A kind of root-inducing powder that adds can take root the diammonium phosphate fertilizer of strengthening root low-temperature resistance |
| PL424927A1 (en) * | 2018-03-16 | 2019-09-23 | Akademia Techniczno-Humanistyczna W Bielsku-Białej | Modified cellulose granules and method for producing modified cellulose granules |
| CN111662130A (en) * | 2020-07-23 | 2020-09-15 | 河北绿旺生态肥有限公司 | Slow-release ecological fertilizer and preparation method thereof |
| CN114568253A (en) * | 2022-01-21 | 2022-06-03 | 瑞派尔(宜昌)科技集团股份有限公司 | Anti-impact ecological planting particle |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |