CN101054323A - Special release control composite fertilizer for cole and preparation method thereof - Google Patents
Special release control composite fertilizer for cole and preparation method thereof Download PDFInfo
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- CN101054323A CN101054323A CN 200710051893 CN200710051893A CN101054323A CN 101054323 A CN101054323 A CN 101054323A CN 200710051893 CN200710051893 CN 200710051893 CN 200710051893 A CN200710051893 A CN 200710051893A CN 101054323 A CN101054323 A CN 101054323A
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Abstract
The invention relates to a rape special controlled release compound fertilizer and preparation method thereof. The rape special controlled release compound fertilizer is characterized in that prepared by using urea, slow action nitrogen fertilizer urea acetaldehyde, coated urea S50, diammonium phosphate, potassium chloride, coated potassium chloride S80, boron magnesium fertilizer and organic matter fertilizer as raw material, weight percent of each material is: urea 15-17, slow action nitrogen fertilizer urea acetaldehyde 22-26, coated urea S50 18-22, diammonium phosphate 13-16, potassium chloride 12-14, coated potassium chloride S80 5-9, boron magnesium fertilizer 1-2, organic matter fertilizer 7-11. The invention can be disposable fertilizer, has reasonable collocation, which is suitable for double low rape, reduces labour cost and working time.
Description
Technical field
The present invention relates to a kind of special release control composite fertilizer for cole and preparation method thereof.
Background technology
Rape is main winter crop of the torrid zone and subtropics red-yellow soil area and the supporting plantation of paddy rice on the south China Yangtze valley.Fertilising is that rape obtains one of important substance basis that increases production.Rape is subjected to weather with fertilizer, and the influence of external factor such as soil simultaneously, more will be considered the objective demand of rape variety self to nutrition.China is vast in territory, and soil and climatic condition complexity add that rape variety is various, nutritive property is different, and traditional rape fertilising is because fertilizer variety is single, and quick-acting is main, be difficult to satisfy different soil, under the weather condition, different rape varieties is to the requirement of fertilizer, therefore, not only fertilizer application frequency is many, and consumption is big, and, because of the fertilizer quick-acting composition of use is many, number of dropouts is big, causes environmental pollution.
Rape is according to its development characteristics, and is different on the demand of nutrition.As two No. 7 180 days time of infertility in the double-low rapeseed new variety, general late September grows seedlings, the late April harvesting, nourish and grow and reproductive growth hockets, transplanted in more than 30 day after generally growing seedlings, to transplant the back and executed seed manure in about 30 days, but executed tongue fertilizer in 60 days. the base fertilizer consumption accounts for 40% of whole consumptions greatly, and seed manure and tongue nutriment in a fertilizer do not account for 30%.The nitrogen of breeding time, phosphorus, the specific absorption of potassium is roughly 1: 0.25: 0.35.
Under the Red Soil Paddy Fields triple-cropping system condition, the double-low rapeseed new variety are carried out rationally to join and are executed azophoska compound fertilizer and borax, help improving nutrient content in plant, keep nutrient balance, increase biological yield and vegetable seed output.
The general nutrient content in double-low rapeseed cultivation soil is low, uses single chemical fertilizer in a large number, easily causes the imbalance of rape nutrition and reproductive growth, and yield of rape is not high.Therefore, the nutritional care of science should be to help improving nutrient content in plant, keeps nutrient balance, increases the output of biological yield and vegetable seed.Its actual conditions is: the one, and the single fertilization on the practicable nutrition regulation; The 2nd, N-P-K in the main nutrient elements and micro-B's is reasonably combined; The 3rd, the N element that in soil, runs off easily and the manual shift of the plain composition of K, the 5th, use sufficient base fertilizer (accounting for 40%), guarantee the nutrient demand of seed manure (30%) and tongue fertilizer (30%); The 6th, organic fertilizer cooperates with the effective of mineral manure, not only land used but also increase soil fertility; The 7th, save labor, be convenient to using and characteristics such as machine operation of fertilizer.
Summary of the invention
But the object of the present invention is to provide a kind of single fertilization, the rational special release control composite fertilizer for cole of collocation and preparation method thereof.
To achieve these goals, technical characterictic of the present invention is: a kind of special release control composite fertilizer for cole, it is characterized in that it (is had another name called butylene and pitch two ureas by urea, slow nitrogen manure urea acetaldehyde, code name CDU), coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer (compost) feedstock production form, the shared weight percent of each raw material is:
Urea 15-17, slow nitrogen manure urea acetaldehyde 22-26, coated urea S50 18-22, diammonium phosphate 13-16, Repone K 12-14, dressing Repone K S80 5-9, boric magnesium fertilizer 1-2, organic fertilizer 7-11.
The shared weight percent the best of each raw material is: urea 16, slow nitrogen manure urea acetaldehyde 24, coated urea S50 20, diammonium phosphate 15, Repone K 10, dressing Repone K S80 7, boric magnesium fertilizer 1, organic fertilizer 7.
Described coated urea S50 is made up of dressing S50 and urea, and the weight percent of the shared coated urea S50 of dressing S50 is 10-14, dressing S50 coated urea; Dressing S50 is made up of clay mineral, biodegradable resin, plant amylum and promoting agent, and the weight percent of the shared dressing S50 of each component is: clay mineral: 52-58, biodegradable resin: 37-41, plant amylum: 3-5, promoting agent: 0.5-2.
Described dressing Repone K S80 is made up of dressing S80 and Repone K, and the weight percent of the shared dressing Repone K of dressing S80 S80 is 12-14, and dressing S80 wraps up Repone K; Described dressing S80 is made up of clay mineral, biodegradable resin, plant amylum and promoting agent, and the shared dressing S80 of each component weight percent is: clay mineral: 53-57, biodegradable resin: 36-40, promoting agent: 0.8-2, plant amylum 4-8.
Described clay mineral is a diatomite; Described biodegradable resin is any one or more than one the mixture in poly butylene succinate, polyvinyl alcohol, polyacrylic acid and the derivative thereof, and more than one are any proportioning when mixing; Described promoting agent is any one or more than one the mixture in alkylsulfonate, alkylbenzene sulfonate, alkyl-sulphate, the alkylphenol polyoxyethylene, and more than one are any proportioning when mixing; Described plant amylum is any one or more than one the mixture in ground rice, wheat-flour, the Semen Maydis powder, and more than one are any proportioning when mixing.
Described slow nitrogen manure urea acetaldehyde [has another name called butylene and pitches two ureas, code name CDU (Cycro-Di-Urea)] be a kind of environmentally friendly slow nitrogen manure, by the organic compound that urea and acetaldehyde generate behind chemical reaction under acidic conditions, nitrogen content is 31%; Slow nitrogen manure urea acetaldehyde is currently available products.
Described organic fertilizer (compost) is that farm crop tangerine bar, green grass, fallen leaves and vegetable garbage etc. form through the decomposition granulation of becoming thoroughly decomposed under field conditions (factors).Its concrete grammar is evenly to stack after any one or more than one the mixing raw material brachymemma in above-mentioned, compresses having peace of mind, and thickness is about the 20-30 centimetre, sprinkles and executes an amount of people's domestic animals manure, plant ash or lime etc., regulate C/N than or pH become thoroughly decomposed with the decomposition of quickening compost; Repave thick fine earth of 3-5 centimetre or mud then; Pile about 2 meters high so from level to level, bind with sposh at last or cover with plastics film; Turning inspection after 1 month, with in the middle of skin ploughs under, the centre good skin that ploughs under that becomes thoroughly decomposed, and mend an amount of moisture or human excrement, heap is rotten again; Organic compost after becoming thoroughly decomposed drying again manufactures the granulated fertilizer of 2-3mm size.
The preparation method of above-mentioned a kind of special release control composite fertilizer for cole is characterized in that it comprises the steps:
1). preparation coated urea S50:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 60-80 ℃; (b). the weight percent by the shared coated urea S50 of dressing S50 is 10-14, and the weight percent of the shared coated urea S50 of urea is that 86-90 chooses dressing S50 and urea; Preparation dressing S50: be by the shared dressing S50 of each component weight percent: clay mineral: 52-58, biodegradable resin: 37-41, plant amylum: 3-5, promoting agent: 0.5-2 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the urea granules, drying, screening, getting diameter is the coated urea S50 of 3-4mm;
2). preparation dressing Repone K S80:(a) Repone K is by compressing tablet or comminution granulation, and raw material is carried out the granulating granulation, chooses the potassium chloride particle that diameter is 3-4mm, in the fluidized-bed of packing into, is heated to 60-80 ℃; (b). the weight percent by the shared dressing Repone K of dressing S80 S80 is 10-14, and the weight percent of the shared dressing Repone K of Repone K S80 is that 86-90 chooses dressing S80 and Repone K; Preparation dressing S80: be by the shared dressing S80 of each component weight percent: clay mineral: 53-57, biodegradable resin: 36-40, promoting agent: 0.8-2, plant amylum 4-8 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the granular potassium sulfate, dry, screening, getting diameter is the dressing Repone K S80 of 3-4mm;
3). by the shared weight percent of each raw material be: urea 15-17, slow nitrogen manure urea acetaldehyde 22-26, coated urea S50 18-22, diammonium phosphate 13-16, Repone K 12-14, dressing Repone K S80 5-9, boric magnesium fertilizer 1-2, organic fertilizer 7-11 chooses urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer raw material and mixes, and gets product.
The curved type of the release of coated urea S50, N is discharged into 50 and reaches 80%, mainly is the nitrogen needs that satisfy before and after the rape tongue phase.
The release of CDU is type linearly, and the release period of N is by 30 days, mainly is the nitrogen needs that satisfy rape seedling and tongue phase.
The release of dressing Repone K S80 is nonlinear type, and the release of K is slow early stage, mainly is to satisfy the needs of rape middle and later periods to the potassium element.
Boric magnesium fertilizer (B fertilizer) is favourable to the pollination pipe elongation at rape florescence and the insemination of being pollinated, and can improve the setting percentage of rape.
Nitrogen in the fertilizer, phosphorus, the potassium element is a macroelement, grows essentially by rape, and boric magnesium fertilizer can improve the photosynthetic efficiency of rape, the raising rape insemination quality of being pollinated.
Organic fertilizer not only helps improving the utilization ratio of mineral manure, but also possesses the function of increasing soil fertility.
Problem such as the invention solves that traditional chemical fertilizer utilizes weak effect in using, environmental pollution is heavy and NPK is out of proportion, each moiety N-P-K collocation of the present invention rationally is applicable to double-low rapeseed.Carry out the single fertilization method, single fertilization is transplanted the phase by the end of October at double-low rapeseed season, and using method is to do all that base manure is disposable to be spread fertilizer over the fields.
The invention has the beneficial effects as follows: the one, the fertilising several times a year that changes double-low rapeseed has reduced labour cost and activity duration for property fertilising annually; The 2nd, reduced the serious problem of bringing because of repeatedly applying fertilizer of liquid manure loss; The 3rd, according to the characteristics of double-low rapeseed crop to the demand of N and K, carry out N and K fertilizer in good time and reasonably regulation and control, meeting double-low rapeseed seedling stage and tongue phase divides the rule of absorption demand to N element and K attainment, reaches the purpose that applies fertilizers scientifically; The 4th, reasonably arrange in pairs or groups NPK and B, Mg content helps improving light and the performance of crop, improves the rape insemination quality of being pollinated.The 5th, fertilizer use the service efficiency that both helps improving inorganic fertilizer, can improve the soil physical chemistry shape again, strengthen soil fertility.
Double-low rapeseed can have 240 kilograms of effect compositions by every square kilometre of N, converses the rate of fertilizer application of above-mentioned fertilizer required on the soil of unit surface.Again by seed sower or manually transplant the back and be sprinkled into the land for growing field crops as disposable base manure at rape.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
A kind of preparation method of special release control composite fertilizer for cole, it comprises the steps:
1). preparation coated urea S50:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 60-80 ℃; (b). the weight percent by the shared coated urea S50 of dressing S50 is 12, and the weight percent of the shared coated urea S50 of urea is 88 to choose dressing S50 and urea; Preparation dressing S50: by the shared dressing S50 of each component weight percent be: clay mineral: 58, biodegradable resin: 38, plant amylum: 3, promoting agent: 1 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=8: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the urea granules, drying, screening, getting diameter is the coated urea S50 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a poly butylene succinate; Described promoting agent is alkylsulfonate (as: sodium laurylsulfonate etc., below identical); Described plant amylum is a ground rice;
2). preparation dressing Repone K S80:(a) Repone K is by pressed disc method, and raw material is carried out the granulating granulation, chooses the potassium chloride particle that diameter is 3-4mm, in the fluidized-bed of packing into, is heated to 60-80 ℃; (b). the weight percent by the shared dressing Repone K of dressing S80 S80 is 12, and the weight percent of the shared dressing Repone K of Repone K S80 is 88 to choose dressing S80 and Repone K; Preparation dressing S80. by the shared dressing S80 of each component weight percent is: clay mineral: 57, and biodegradable resin: 39, promoting agent: 1, plant amylum 3 is chosen clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=8: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the granular potassium sulfate, dry, screening, getting diameter is the dressing Repone K S80 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a poly butylene succinate; Described promoting agent is alkylsulfonate (as: sodium laurylsulfonate etc.); Described plant amylum is a ground rice;
3). described organic fertilizer (compost) is that farm crop tangerine bar, green grass, fallen leaves and vegetable garbage etc. form through the decomposition granulation of becoming thoroughly decomposed under field conditions (factors).Its concrete grammar is evenly to stack after any one or more than one the mixing raw material brachymemma in above-mentioned, compresses having peace of mind, and thickness is about the 20-30 centimetre, sprinkles and executes an amount of people's domestic animals manure, plant ash or lime etc., regulate C/N than or pH become thoroughly decomposed with the decomposition of quickening compost; Repave thick fine earth of 3-5 centimetre or mud then; Pile about 2 meters high so from level to level, bind with sposh at last or cover with plastics film; Turning inspection after 1 month, with in the middle of skin ploughs under, the centre good skin that ploughs under that becomes thoroughly decomposed, and mend an amount of moisture or human excrement, heap is rotten again; Organic compost after becoming thoroughly decomposed drying again manufactures the granulated fertilizer of 2-3mm size.
4). it is 3-4mm that urea, slow nitrogen manure urea acetaldehyde, diammonium phosphate, Repone K, boric magnesium fertilizer screen diameter respectively, is not that granule will be by prior granulation, and in screening, prilling process can be with drum-type or extruding type, to diameter be 3-4mm;
5). see Table 1, by the shared weight percent of each raw material be: urea 16, slow nitrogen manure urea acetaldehyde 24, coated urea S5020, diammonium phosphate 15, Repone K 10, dressing Repone K S807, boric magnesium fertilizer 1, organic fertilizer 7 are chosen urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer raw material and are mixed, and get product.
Table 1
| Material name | Material composition (mass percent) N-P 2O 5-K 2O-B | Cooperation ratio (weight percent) | Guarantee composition 26.7-6.9-8.4-1.5 (B) (mass percent) N-P 2O 5-K 2O--B |
| Urea | 46.0-0.0-0.0 | 16.0 | 8.36-0.0-0.0-0.0-0.0 |
| Coated urea S50 | 42.0-0.0-0.0 | 20.0 | 8.4-0.0-0.0-0.0-0.0 |
| Urea acetaldehyde | 31.0-0.0-0.0 | 24.0 | 7.5-0.0-0.0-0.0 |
| Diammonium phosphate | 18.0-46.0-0.0 | 15.0 | 2.7-6.9-0.0-0.0-0.0 |
| Dressing Repone K S80 | 0.0-0.0-51.0-0.0 | 7.0 | 0.0-0.0-3.57-0.0-0.0 |
| Repone K | 0.0-0.0-60.0-0.0-0.0 | 10.0 | 0.0-0.0-6.0-0.0-0.0 |
| Boric magnesium fertilizer | 0.0-0.0-0.0-0.0-1.5 | 1.0 | 0.0-0.0-0.0-0.0-1.5 |
| Organic fertilizer (compost) | 0.0-0.0-0.0-0.0-0.0 | 7.0 | 0.0-0.0-0.0-0.0-0.0 |
| Add up to | 100.0 | 18.6-4.6-9.6-2.73-7.12 | |
| Guarantee composition | 26.7-6.9-9.57-1.5 effective constituent is greater than 44.67 (wherein, organic content is more than 12%) |
Embodiment 2: a kind of preparation method of special release control composite fertilizer for cole, it comprises the steps:
1). preparation coated urea S50:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 60 ℃; (b). the weight percent by the shared coated urea S50 of dressing S50 is 10, and the weight percent of the shared coated urea S50 of urea is 90 to choose dressing S50 and urea; Preparation dressing S50: by the shared dressing S50 of each component weight percent be: clay mineral: 52, biodegradable resin: 41, plant amylum: 5, promoting agent: 2 choose clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=6: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the urea granules, drying, screening, getting diameter is the coated urea S50 of 3-4mm;
Described clay mineral is a diatomite; Described biodegradable resin is a polyvinyl alcohol; Described promoting agent be alkylbenzene sulfonate (sodium alkyl benzene sulfonate, as p-methyl benzenesulfonic acid sodium, below identical); Described plant amylum is a wheat-flour;
2). preparation dressing Repone K S80:(a) Repone K is by compressing tablet or comminution granulation, and raw material is carried out the granulating granulation, chooses the potassium chloride particle that diameter is 3-4mm, in the fluidized-bed of packing into, is heated to 60 ℃; (b). the weight percent by the shared dressing Repone K of dressing S80 S80 is 10, and the weight percent of the shared dressing Repone K of Repone K S80 is 90 to choose dressing S80 and Repone K; Preparation dressing S80: by the shared dressing S80 of each component weight percent be: clay mineral: 53, biodegradable resin: 40, promoting agent: 2, plant amylum 5 is chosen clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=6: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the granular potassium sulfate, drying, screening, getting diameter is the dressing Repone K S80 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a polyvinyl alcohol; Described promoting agent be alkylbenzene sulfonate (sodium alkyl benzene sulfonate, as: p-methyl benzenesulfonic acid sodium); Described plant amylum is a wheat-flour;
3). the preparation of described organic fertilizer (compost) is with embodiment 1.
4). it is 3-4mm that urea, slow nitrogen manure urea acetaldehyde, diammonium phosphate, Repone K, boric magnesium fertilizer screen diameter respectively, is not that granule will be by prior granulation, and in screening, prilling process can be with drum-type or extruding type, to diameter be 3-4mm;
5). by the shared weight percent of each raw material be: urea 15, slow nitrogen manure urea acetaldehyde 22, coated urea S5018, diammonium phosphate 16, Repone K 14, dressing Repone K S80 7, boric magnesium fertilizer 1, organic fertilizer 7 is chosen urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer raw material and is mixed, and gets product.
Embodiment 3: a kind of preparation method of special release control composite fertilizer for cole, it comprises the steps:
1). preparation coated urea S50:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 70 ℃; (b). the weight percent by the shared coated urea S50 of dressing S50 is 13, and the weight percent of the shared coated urea S50 of urea is 87 to choose dressing S50 and urea; Preparation dressing S50: by the shared dressing S50 of each component weight percent be: clay mineral: 55, biodegradable resin: 39.5, plant amylum: 5, promoting agent: 0.5 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=1: 10 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 100 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the urea granules, drying, screening, getting diameter is the coated urea S50 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a polyacrylic acid; Described promoting agent is alkyl-sulphate (as: sodium lauryl sulphate etc., below identical); Described plant amylum is a Semen Maydis powder;
2). preparation dressing Repone K S80:(a) Repone K is by compressing tablet or comminution granulation, and raw material is carried out the granulating granulation, chooses the potassium chloride particle that diameter is 3-4mm, in the fluidized-bed of packing into, is heated to 70 ℃; (b). the weight percent by the shared dressing Repone K of dressing S80 S80 is 13, and the weight percent of the shared dressing Repone K of Repone K S80 is 87 to choose dressing S80 and Repone K; Preparation dressing S80: by the shared dressing S80 of each component weight percent be: clay mineral: 53, biodegradable resin: 40, promoting agent: 0.8, plant amylum 6.2 is chosen clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=1: 10 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 100 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the granular potassium sulfate, drying, screening, getting diameter is the dressing Repone K S80 of 3-4mm; Described biodegradable resin is a polyacrylic acid; Described promoting agent is alkyl-sulphate (as: sodium lauryl sulphate etc.); Described plant amylum is a Semen Maydis powder;
3). the preparation of described organic fertilizer (compost) is with embodiment 1.
4). it is 3-4mm that urea, slow nitrogen manure urea acetaldehyde, diammonium phosphate, Repone K, boric magnesium fertilizer screen diameter respectively, is not that granule will be by prior granulation, and in screening, prilling process can be with drum-type or extruding type, to diameter be 3-4mm;
5). by the shared weight percent of each raw material be: urea 16, slow nitrogen manure urea acetaldehyde 23, coated urea S50 19, diammonium phosphate 14, Repone K 13, dressing Repone K S80 6, boric magnesium fertilizer 1, organic fertilizer 8 is chosen urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer raw material and is mixed, and gets product.
Embodiment 4: a kind of preparation method of special release control composite fertilizer for cole, it comprises the steps:
1). preparation coated urea S50:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 75 ℃; (b). the weight percent by the shared coated urea S50 of dressing S50 is 11, and the weight percent of the shared coated urea S50 of urea is 89 to choose dressing S50 and urea; Preparation dressing S50: by the shared dressing S50 of each component weight percent be: clay mineral: 58, biodegradable resin: 37, plant amylum: 4, promoting agent: 1 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=11: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 95 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the urea granules, drying, screening, getting diameter is the coated urea S50 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is polyvinyl alcohol and polyacrylic acid, and polyvinyl alcohol and polyacrylic weight respectively account for 1/2; Described promoting agent is alkyl-sulphate and alkylphenol polyoxyethylene, and the weight of alkyl-sulphate and alkylphenol polyoxyethylene respectively accounts for 1/2; Described plant amylum is wheat-flour and Semen Maydis powder, and the weight of wheat-flour and Semen Maydis powder respectively accounts for 1/2;
2). preparation dressing Repone K S80:(a) Repone K is by compressing tablet or comminution granulation, and raw material is carried out the granulating granulation, chooses the potassium chloride particle that diameter is 3-4mm, in the fluidized-bed of packing into, is heated to 75 ℃; (b). the weight percent by the shared dressing Repone K of dressing S80 S80 is 11, and the weight percent of the shared dressing Repone K of Repone K S80 is 89 to choose dressing S80 and Repone K; Preparation dressing S80. by the shared dressing S80 of each component weight percent is: clay mineral: 57, and biodegradable resin: 36, promoting agent: 2, plant amylum 5 is chosen clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=11: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 95 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the granular potassium sulfate, drying, screening, getting diameter is the dressing Repone K S80 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is polyvinyl alcohol and polyacrylic acid, and polyvinyl alcohol and polyacrylic weight respectively account for 1/2; Described promoting agent is alkyl-sulphate and alkylphenol polyoxyethylene, and the weight of alkyl-sulphate and alkylphenol polyoxyethylene respectively accounts for 1/2; Described plant amylum is wheat-flour and Semen Maydis powder, and the weight of wheat-flour and Semen Maydis powder respectively accounts for 1/2;
3). the preparation of described organic fertilizer (compost) is with embodiment 1.
4). it is 3-4mm that urea, slow nitrogen manure urea acetaldehyde, diammonium phosphate, Repone K, boric magnesium fertilizer screen diameter respectively, is not that granule will be by prior granulation, and in screening, prilling process can be with drum-type or extruding type, to diameter be 3-4mm;
5). by the shared weight percent of each raw material be: urea 15, slow nitrogen manure urea acetaldehyde 22, coated urea S5018, diammonium phosphate 13, Repone K 12, dressing Repone K S80 9, boric magnesium fertilizer 2, organic fertilizer 9 is chosen urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer raw material and is mixed, and gets product.
Embodiment 5: a kind of preparation method of special release control composite fertilizer for cole, it comprises the steps:
1). preparation coated urea S50:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 80 ℃; (b). the weight percent by the shared coated urea S50 of dressing S50 is 14, and the weight percent of the shared coated urea S50 of urea is 86 to choose dressing S50 and urea; Preparation dressing S50: by the shared dressing S50 of each component weight percent be: clay mineral: 57, biodegradable resin: 37, plant amylum: 5, promoting agent: 1 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=12: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the urea granules, drying, screening, getting diameter is the coated urea S50 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is polyacrylic acid and polyacrylic acid derivative (the different monooctyl ester of polyacrylic acid, below identical), and the weight of polyacrylic acid and polyacrylic acid derivative respectively accounts for 1/2; Described promoting agent is alkylsulfonate and alkylbenzene sulfonate, and the weight of alkylsulfonate and alkylbenzene sulfonate respectively accounts for 1/2; Described plant amylum is wheat-flour and Semen Maydis powder, and the weight of wheat-flour and Semen Maydis powder respectively accounts for 1/2;
2). preparation dressing Repone K S80. (a) Repone K carries out the granulating granulation by compressing tablet or comminution granulation to raw material, chooses the potassium chloride particle that diameter is 3-4mm, in the fluidized-bed of packing into, is heated to 80 ℃; (b). the weight percent by the shared dressing Repone K of dressing S80 S80 is 14, and the weight percent of the shared dressing Repone K of Repone K S80 is 86 to choose dressing S80 and Repone K; Preparation dressing S80: by the shared dressing S80 of each component weight percent be: clay mineral: 53, biodegradable resin: 37, promoting agent: 2, plant amylum 8 is chosen clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=12: 90 is chosen mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the granular potassium sulfate, drying, screening, getting diameter is the dressing Repone K S80 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is polyacrylic acid and polyacrylic acid derivative (the different monooctyl ester of polyacrylic acid), and the weight of polyacrylic acid and polyacrylic acid derivative respectively accounts for 1/2; Described promoting agent is alkylsulfonate and alkylbenzene sulfonate, and the weight of alkylsulfonate and alkylbenzene sulfonate respectively accounts for 1/2; Described plant amylum is wheat-flour and Semen Maydis powder, and the weight of wheat-flour and Semen Maydis powder respectively accounts for 1/2;
3). the preparation of described organic fertilizer (compost) is with embodiment 1.
4). it is 3-4mm that urea, slow nitrogen manure urea acetaldehyde, diammonium phosphate, Repone K, boric magnesium fertilizer screen diameter respectively, is not that granule will be by prior granulation, and in screening, prilling process can be with drum-type or extruding type, to diameter be 3-4mm;
5). by the shared weight percent of each raw material be: urea 17, slow nitrogen manure urea acetaldehyde 23, coated urea S50 18, diammonium phosphate 13, Repone K 12, dressing Repone K S80 5, boric magnesium fertilizer 1, organic fertilizer 11 is chosen urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer raw material and is mixed, and gets product.
The bound value and the interval value of urea of the present invention, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer, organic fertilizer raw material can both be realized the present invention, just do not enumerate embodiment one by one at this.
Claims (3)
1. special release control composite fertilizer for cole, it is characterized in that it is formed by urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer feedstock production, the shared weight percent of each raw material is:
Urea 15-17, slow nitrogen manure urea acetaldehyde 22-26, coated urea S50 18-22, diammonium phosphate 13-16, Repone K 12-14, dressing Repone K S80 5-9, boric magnesium fertilizer 1-2, organic fertilizer 7-11;
Described coated urea S50 is made up of dressing S50 and urea, and the weight percent of the shared coated urea S50 of dressing S50 is 10-14, dressing S50 coated urea; Dressing S50 is made up of clay mineral, biodegradable resin, plant amylum and promoting agent, and the weight percent of the shared dressing S50 of each component is: clay mineral: 52-58, biodegradable resin: 37-41, plant amylum: 3-5, promoting agent: 0.5-2;
Described dressing Repone K S80 is made up of dressing S80 and Repone K, and the weight percent of the shared dressing Repone K of dressing S80 S80 is 12-14, and dressing S80 wraps up Repone K; Described dressing S80 is made up of clay mineral, biodegradable resin, plant amylum and promoting agent, and the shared dressing S80 of each component weight percent is: clay mineral: 53-57, biodegradable resin: 36-40, promoting agent: 0.8-2, plant amylum 4-8;
Described clay mineral is a diatomite; Described biodegradable resin is any one or more than one the mixture in poly butylene succinate, polyvinyl alcohol, polyacrylic acid and the derivative thereof, and more than one are any proportioning when mixing; Described promoting agent is any one or more than one the mixture in alkylsulfonate, alkylbenzene sulfonate, alkyl-sulphate, the alkylphenol polyoxyethylene, and more than one are any proportioning when mixing; Described plant amylum is any one or more than one the mixture in ground rice, wheat-flour, the Semen Maydis powder, and more than one are any proportioning when mixing.
2. a kind of special release control composite fertilizer for cole according to claim 1, it is characterized in that: the shared weight percent the best of each raw material is: urea 16, slow nitrogen manure urea acetaldehyde 24, coated urea S50 20, diammonium phosphate 15, Repone K 10, dressing Repone K S80 7, boric magnesium fertilizer 1, organic fertilizer 7.
3. the preparation method of a kind of special release control composite fertilizer for cole as claimed in claim 1 is characterized in that it comprises the steps:
1). preparation coated urea S50:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 60-80 ℃; (b). the weight percent by the shared coated urea S50 of dressing S50 is 10-14, and the weight percent of the shared coated urea S50 of urea is that 86-90 chooses dressing S50 and urea; Preparation dressing S50: be by the shared dressing S50 of each component weight percent: clay mineral: 52-58, biodegradable resin: 37-41, plant amylum: 3-5, promoting agent: 0.5-2 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the urea granules, drying, screening, getting diameter is the coated urea S50 of 3-4mm;
2). preparation dressing Repone K S80:(a) Repone K is by compressing tablet or comminution granulation, and raw material is carried out the granulating granulation, chooses the potassium chloride particle that diameter is 3-4mm, in the fluidized-bed of packing into, is heated to 60-80 ℃; (b). the weight percent by the shared dressing Repone K of dressing S80 S80 is 10-14, and the weight percent of the shared dressing Repone K of Repone K S80 is that 86-90 chooses dressing S80 and Repone K; Preparation dressing S80: be by the shared dressing S80 of each component weight percent: clay mineral: 53-57, biodegradable resin: 36-40, promoting agent: 0.8-2, plant amylum 4-8 chooses clay mineral, biodegradable resin, plant amylum and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose mixing solutions, add clay mineral, promoting agent and plant amylum and be heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, progress with per minute 2kg sprays on the granular potassium sulfate, dry, screening, getting diameter is the dressing Repone K S80 of 3-4mm;
3). by the shared weight percent of each raw material be: urea 15-17, slow nitrogen manure urea acetaldehyde 22-26, coated urea S50 18-22, diammonium phosphate 13-16, Repone K 12-14, dressing Repone K S80 5-9, boric magnesium fertilizer 1-2, organic fertilizer 7-11 chooses urea, slow nitrogen manure urea acetaldehyde, coated urea S50, diammonium phosphate, Repone K, dressing Repone K S80, boric magnesium fertilizer and organic fertilizer raw material and mixes, and gets product.
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