CN1948238A - Nitrogen, phosphorus, potassium high content controlled release composite fertilizer special for cotton and its preparation method - Google Patents
Nitrogen, phosphorus, potassium high content controlled release composite fertilizer special for cotton and its preparation method Download PDFInfo
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- CN1948238A CN1948238A CNA200610124800XA CN200610124800A CN1948238A CN 1948238 A CN1948238 A CN 1948238A CN A200610124800X A CNA200610124800X A CN A200610124800XA CN 200610124800 A CN200610124800 A CN 200610124800A CN 1948238 A CN1948238 A CN 1948238A
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Abstract
The present invention relates to a special-purpose control release complex fertilizer and its preparation method. It is characterized by that it is made up by using (by wt%) 15-16% of coating urea 100, 15-16% of coating urea S100, 31-33% of ammonium phosphate and 36-38% of coating potassium chloride. It not only can meet requirements for cotton growth, but also can raise cotton fibre quality.
Description
Technical field
The present invention relates to a kind of controlled release composite fertilizer special for cotton and preparation method thereof.
Background technology
Cotton field fertilising implementation nitrogen, phosphorus, potassium element fertilizer compounding application are the important measures of cotton prematurity, high-quality, high yield.Cotton is according to development characteristics, and is different on the demand of nutrition.It is reported that the absorption peak of general nitrogen, phosphorus, potassium nutrition all blooming to the term of opening bolls, account for the 50--70% that absorbs total amount.The specific absorption of the nitrogen of cotton development stage, phosphorus, potassium is roughly 1: 0.3: 1.0.
Traditional cotton is applied fertilizer, and not only consumption is big, the cost height, and it is heavy to work, and a large amount of lavishment inorganic fertilizer also can cause soil compaction, fertilizer loss, degradation detrimentally affect under contaminate environment and the cotton quality.Simultaneously, use single chemical fertilizer in a large number, easily cause cotton nutritional trouble, rich length and lodging.Therefore, modern scientific nutrition management should possess following condition: the one, carry out the single fertilization on the nutrition regulation; The 2nd, N-P-K in the main nutrient elements and micro-Cl's is reasonably combined; The 3rd, the N that in soil, runs off easily plain and the manual shift of the plain composition of K and the concentrated release of cotton boll phase; The 4th, improve the result of use of chemical fertilizer energetically; The 5th, can satisfy the nutrition supply of cotton flowering and boll-setting period; The 6th, save labor, be convenient to manually reach characteristics such as machine operation.
Summary of the invention
But the object of the present invention is to provide a kind of single fertilization, the controlled release composite fertilizer special for cotton of rational nitrogen, phosphorus, potassium high content and preparation method thereof of arranging in pairs or groups.
To achieve these goals, technical scheme of the present invention is: the controlled release composite fertilizer special for cotton of a kind of nitrogen, phosphorus, potassium high content, it is characterized in that it is mainly formed by coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 feedstock production, the shared weight percent of each raw material is:
Coated urea 100:15-16, coated urea S100:15-16, ammonium phosphate: 31-33,
Dressing Repone K S80:36-38.
The shared weight percent the best of each raw material is:
Coated urea 100:15.5, coated urea S100:15.5, ammonium phosphate: 32,
Dressing Repone K S80:37.
Described coated urea 100 mainly is made up of dressing 100 and urea, and the weight percent of dressing 100 shared coated ureas 100 is 10-14, dressing 100 coated ureas; Dressing 100 mainly is made up of clay mineral, biodegradable resin and promoting agent, and shared dressing 100 weight percents of each component are: clay mineral: 56-60, biodegradable resin: 39-43, promoting agent: 1-2.
Described coated urea S100 mainly is made up of dressing S100 and urea, and the weight percent of the shared coated urea S100 of dressing S100 is 10-14, dressing S100 coated urea; Described dressing S100 is mainly by clay mineral, biodegradable resin, plant amylum and promoting agent are formed, and the shared dressing S100 of each component weight percent is: clay mineral: 53-57, biodegradable resin: 36-40, promoting agent: 0.8-2, plant amylum 4-8.
Described dressing Repone K S80 mainly is made up of dressing S80 and Repone K, and the weight percent of the shared dressing Repone K of dressing S80 S80 is 10-14, and dressing S80 wraps up Repone K; Described dressing S80 is mainly by clay mineral, biodegradable resin, plant amylum and promoting agent are formed, 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.
The preparation method of the controlled release composite fertilizer special for cotton of above-mentioned a kind of nitrogen, phosphorus, potassium high content is characterized in that it comprises the steps:
1). preparation coated urea 100:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 60-80 ℃; (b) weight percent by dressing 100 shared coated ureas 100 is 10-14, and the weight percent of the shared coated urea 100 of urea is that 86-90 chooses dressing 100, urea; Preparation dressing 100: be by shared dressing 100 weight percents of each component: clay mineral: 56-60, biodegradable resin: 39-43, promoting agent: 1-2 chooses clay mineral, biodegradable resin and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, mixing solutions is by clay mineral, biodegradable resin and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose, adding clay mineral, promoting agent are heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, drying, screening, getting diameter is the coated urea 100 of 3-4mm;
2). preparation coated urea S100:(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 S100 of dressing S100 is 10-14, and the weight percent of the shared coated urea S100 of urea is that 86-90 chooses dressing S100 and urea; Preparation dressing S100: be by the shared dressing S100 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose, 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, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the coated urea S100 of 3-4mm;
3). 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose, 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, spray on the granular potassium sulfate in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the dressing Repone K S80 of 3-4mm;
4). by the shared weight percent of each raw material be: coated urea 100:15-16, coated urea S100:15-16, ammonium phosphate: 31-33, dressing Repone K S80:36-38 choose coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 raw material mix product.
The release of coated urea 100 is type linearly, and N is discharged into 100 and reaches 80%, mainly is to satisfy the nitrogen needs of cotton in seedling stage to duration of flowering.Coated urea S100 discharges and is nonlinear type, discharges slowly at cotton nutrient in early stage, and mainly be to satisfy the nitrogen needs that cotton blooms later.Nitrogen in the ammonium phosphate mainly is the nitrogen needs that satisfy cotton in seedling stage.
The release of dressing Repone K S80 is nonlinear type, the release of K early stage slowly, mainly be satisfy cotton bloom after to the needs of potassium element.Cotton is a happiness chlorine crop, and the chlorine in the dressing Repone K have power in the cellulosic quality that improves cotton.
Nitrogen in the fertilizer, phosphorus, potassium element are macroelement, and essential by cotton development, and chlorine fertilizer can improve the photosynthetic efficiency of cotton, improve the output of cotton, improve the quality of cotton cellulose.
The present invention is the seed manure in early stage according to cotton growth cycle and required nutrient difference, the cotton boll fertilizer in mid-term.The seed manure in early stage, mainly by ammonium phosphate, coated urea 100 (claiming controlled release nitrogenous fertilizer again) goes to finish, and the cotton boll fertilizer of middle and later periods mainly goes to finish by coated urea 100, coated urea S100, dressing Repone K S80.And chlorine fertilizer can improve the photosynthetic efficiency of cotton, improves the output of cotton, improves the quality of cotton cellulose.
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 that the cotton growth cycle is to nutrient demand.Carry out the single fertilization method, its using method is all to do the disposable program request of base manure in the soil of 5 centimeters of cotton seedlings to single fertilization in the late April of sowing cotton seed phase season.Dressing 100, dressing S100 and dressing 80 Wholly-degradables that the present invention uses.
The invention has the beneficial effects as follows: the one, carry out the single fertilization of cotton, reduced labour cost and activity duration; Two are to use controlled release fertilizer to reduce fertilizer loss; The 3rd, according to cotton to N, P, the characteristics of demand of K fertilizer is carried out N, P, the reasonable regulation and control of K meet the cotton flowering and boll-setting period and divide the rule of absorption demand to N element and K attainment, reach the purpose that applies fertilizers scientifically, using with 1.0: 1.0: 1.0 amounts of increase in production of nitrogen, phosphorus, potassium is big; The 4th, reasonably arrange in pairs or groups N, P, K content help improving light and the performance of crop; The 5th, satisfied the demand of cotton to chlorine fertilizer, improve the quality of cotton cellulose.
Using method:
Can have the standard of imitating composition 15-25 jin by every mu of N, converse the rate of fertilizer application of above-mentioned fertilizer required on the soil of unit surface.Again by seed sower or manually be sprinkled into the land for growing field crops as disposable base manure in the sowing cotton seed phase.
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: the preparation method of the controlled release composite fertilizer special for cotton of a kind of nitrogen, phosphorus, potassium high content, it comprises the steps:
1). preparation coated urea 100:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 70 ℃; (b) weight percent by dressing 100 shared coated ureas 100 is 12, and the weight percent of the shared coated urea 100 of urea is 88 to choose dressing 100, urea; Preparation dressing 100: by shared dressing 100 weight percents of each component be: clay mineral: 57, biodegradable resin: 42, promoting agent: 1 chooses clay mineral, biodegradable resin and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, mixing solutions is by clay mineral, biodegradable resin and promoting agent: the weight ratio of mixing solutions=choose at 9: 90, adding clay mineral, promoting agent are heated to 100 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, drying, screening, getting diameter is the coated urea 100 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);
2). preparation coated urea S100:(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 S100 of dressing S100 is 12, and the weight percent of the shared coated urea S100 of urea is 88 to choose dressing S100 and urea; Preparation dressing S100: by the shared dressing S100 of each component weight percent be: clay mineral: 55, biodegradable resin: 38, promoting agent: 1, plant amylum 6 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 9: 90, add clay mineral, promoting agent and plant amylum and be heated to 100 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the coated urea S100 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); Described plant amylum is a ground rice;
3). 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 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 be: clay mineral: 55, biodegradable resin: 38, promoting agent: 1, plant amylum 6 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 9: 90, add clay mineral, promoting agent and plant amylum and be heated to 100 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the granular potassium sulfate in the fluidized-bed with the progress of per minute 2kg, 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); Described plant amylum is a ground rice;
4). to the ammonium phosphate of buying on market, as passing through to screen for granule, diameter is 3-4mm; Be not that granule will be by prior granulation, screening again, 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: coated urea 100:15.5, coated urea S100:15.5, ammonium phosphate: 32, dressing Repone K S80:37 choose coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 raw material mix product.N, P, K, Cl content see Table 1.
Table 1
| Material name | Material composition N-P-K-Cl (mass percent) | Material fiting ratio example (weight percent) | Guarantee that composition N-P-K-Cl is 16-16-16-21 (mass percent) |
| Coated urea 100 | 42.0-0.0-0.0-0.0 | 15.5 | 6.51-0.0-0.0-0.0-0.0 |
| Coated urea S100 | 42.0-0.0-0.0-0.0 | 15.5 | 6.51-0.0-0.0-0.0-0.0 |
| Ammonium phosphate | 12.0-52.0-0.0-0.0 | 32.0 | 3.84-16.64-0.0-0.0-0.0 |
| Dressing Repone K S80 | 0.0-0.0-45.0-59 | 37.0 | 0.0-0.0-16.65-21.83 |
| Add up to | 100.0 | 16.86-16.64-16.65-21.83 | |
| Guarantee composition | 16.0-16.0-16.0-21.0 |
Embodiment 2: the preparation method of the controlled release composite fertilizer special for cotton of a kind of nitrogen, phosphorus, potassium high content, it comprises the steps:
1). preparation coated urea 100:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 60 ℃; (b) weight percent by dressing 100 shared coated ureas 100 is 10, and the weight percent of the shared coated urea 100 of urea is 90 to choose dressing 100, urea; Preparation dressing 100: by shared dressing 100 weight percents of each component be: clay mineral: 56, biodegradable resin: 43, promoting agent: 1 chooses clay mineral, biodegradable resin and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, mixing solutions is by clay mineral, biodegradable resin and promoting agent: the weight ratio of mixing solutions=choose at 6: 90, adding clay mineral, promoting agent are heated to 90 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, drying, screening, getting diameter is the coated urea 100 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a polyvinyl alcohol; Described promoting agent is an alkylbenzene sulfonate;
2). preparation coated urea S100:(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 S100 of dressing S100 is 10, and the weight percent of the shared coated urea S100 of urea is 90 to choose dressing S100 and urea; Preparation dressing S100: by the shared dressing S100 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 6: 90, add clay mineral, promoting agent and plant amylum and be heated to 90 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the coated urea S100 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a polyvinyl alcohol; Described promoting agent is an alkylbenzene sulfonate; Described plant amylum is a wheat-flour;
3). 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: 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 6: 90, add clay mineral, promoting agent and plant amylum and be heated to 90 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the granular potassium sulfate in the fluidized-bed with the progress of per minute 2kg, dry, 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 is an alkylbenzene sulfonate; Described plant amylum is a wheat-flour;
4). to the ammonium phosphate of buying on market, as passing through to screen for granule, diameter is 3-4mm; Be not that granule will be by prior granulation, screening again, 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: coated urea 100:15, coated urea S100:16, ammonium phosphate: 31, dressing Repone K S80:38 choose coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 raw material mix product.
Embodiment 3: the preparation method of the controlled release composite fertilizer special for cotton of a kind of nitrogen, phosphorus, potassium high content, it comprises the steps:
1). preparation coated urea 100:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 80 ℃; (b) weight percent by dressing 100 shared coated ureas 100 is 14, and the weight percent of the shared coated urea 100 of urea is 86 to choose dressing 100, urea; Preparation dressing 100: by shared dressing 100 weight percents of each component be: clay mineral: 60, biodegradable resin: 39, promoting agent: 1 chooses clay mineral, biodegradable resin and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, mixing solutions is by clay mineral, biodegradable resin and promoting agent: the weight ratio of mixing solutions=choose at 12: 90, adding clay mineral, promoting agent are heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, drying, screening, getting diameter is the coated urea 100 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is polyvinyl alcohol and polyacrylic acid, and polyvinyl alcohol, polyacrylic weight respectively account for 1/2; Described promoting agent is alkyl-sulphate and alkylphenol polyoxyethylene, and the weight of alkyl-sulphate, alkylphenol polyoxyethylene respectively accounts for 1/2;
2). preparation coated urea S100:(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 S100 of dressing S100 is 14, and the weight percent of the shared coated urea S100 of urea is 86 to choose dressing S100 and urea; Preparation dressing S100: by the shared dressing S100 of each component weight percent be: clay mineral: 57, biodegradable resin: 38.2, promoting agent: 0.8, plant amylum 4 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 12: 90, add clay mineral, promoting agent and plant amylum and be heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the coated urea S100 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is polyvinyl alcohol and polyacrylic acid, and polyvinyl alcohol, polyacrylic weight respectively account for 1/2; Described promoting agent is alkyl-sulphate and alkylphenol polyoxyethylene, and the weight of alkyl-sulphate, alkylphenol polyoxyethylene respectively accounts for 1/2; Described plant amylum is wheat-flour and Semen Maydis powder, and the weight of wheat-flour, Semen Maydis powder respectively accounts for 1/2;
3). 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 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: 57, biodegradable resin: 38.2, promoting agent: 0.8, plant amylum 4 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 12: 90, add clay mineral, promoting agent and plant amylum and be heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the granular potassium sulfate in the fluidized-bed with the progress of per minute 2kg, dry, 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, polyacrylic weight respectively account for 1/2; Described promoting agent is alkyl-sulphate and alkylphenol polyoxyethylene, and the weight of alkyl-sulphate, alkylphenol polyoxyethylene respectively accounts for 1/2; Described plant amylum is wheat-flour and Semen Maydis powder, and the weight of wheat-flour, Semen Maydis powder respectively accounts for 1/2;
4). to the ammonium phosphate of buying on market, as passing through to screen for granule, diameter is 3-4mm; Be not that granule will be by prior granulation, screening again, 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: coated urea 100:16, coated urea S100:15, ammonium phosphate: 33, dressing Repone K S80:36 choose coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 raw material mix product.
Embodiment 4: the preparation method of the controlled release composite fertilizer special for cotton of a kind of nitrogen, phosphorus, potassium high content, it comprises the steps:
1). preparation coated urea 100:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 80 ℃; (b) weight percent by dressing 100 shared coated ureas 100 is 14, and the weight percent of the shared coated urea 100 of urea is 86 to choose dressing 100, urea; Preparation dressing 100: by shared dressing 100 weight percents of each component be: clay mineral: 56, biodegradable resin: 39, promoting agent: 1 chooses clay mineral, biodegradable resin and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, mixing solutions is by clay mineral, biodegradable resin and promoting agent: the weight ratio of mixing solutions=choose at 12: 90, adding clay mineral, promoting agent are heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, drying, screening, getting diameter is the coated urea 100 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a polyvinyl alcohol; Described promoting agent is alkylsulfonate (as: sodium laurylsulfonate etc., below identical);
2). preparation coated urea S100:(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 S100 of dressing S100 is 11, and the weight percent of the shared coated urea S100 of urea is 89 to choose dressing S100 and urea; Preparation dressing S100: by the shared dressing S100 of each component weight percent be: clay mineral: 54, biodegradable resin: 40, promoting agent: 2, plant amylum 4 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 12: 90, add clay mineral, promoting agent and plant amylum and be heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the coated urea S100 of 3-4mm; Described clay mineral is a diatomite; Described biodegradable resin is a polyvinyl alcohol; Described promoting agent is alkylsulfonate (as: sodium laurylsulfonate); Described plant amylum is a ground rice;
3). 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 80 ℃; (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: 54, biodegradable resin: 40, promoting agent: 2, plant amylum 4 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio of mixing solutions=choose at 12: 90, add clay mineral, promoting agent and plant amylum and be heated to 110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the granular potassium sulfate in the fluidized-bed with the progress of per minute 2kg, dry, 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 is alkylsulfonate (as: sodium laurylsulfonate); Described plant amylum is a ground rice;
4). to the ammonium phosphate of buying on market, as passing through to screen for granule, diameter is 3-4mm; Be not that granule will be by prior granulation, screening again, 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: coated urea 100:16, coated urea S100:16, ammonium phosphate: 32, dressing Repone K S80:36 choose coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 raw material mix product.
Claims (6)
1. the controlled release composite fertilizer special for cotton of a nitrogen, phosphorus, potassium high content is characterized in that it is mainly formed by coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 feedstock production, and the shared weight percent of each raw material is:
Coated urea 100:15-16, coated urea S100:15-16, ammonium phosphate: 31-33,
Dressing Repone K S80:36-38.
2. the controlled release composite fertilizer special for cotton of a kind of nitrogen according to claim 1, phosphorus, potassium high content is characterized in that: the shared weight percent of each raw material is:
Coated urea 100:15.5, coated urea S100:15.5, ammonium phosphate: 32,
Dressing Repone K S80:37.
3. the controlled release composite fertilizer special for cotton of a kind of nitrogen according to claim 1, phosphorus, potassium high content, it is characterized in that: described coated urea 100 mainly is made up of dressing 100 and urea, the weight percent of dressing 100 shared coated ureas 100 is 10-14, dressing 100 coated ureas; Dressing 100 mainly is made up of clay mineral, biodegradable resin and promoting agent, and shared dressing 100 weight percents of each component are: clay mineral: 56-60, biodegradable resin: 39-43, promoting agent: 1-2.
4. the controlled release composite fertilizer special for cotton of a kind of nitrogen according to claim 1, phosphorus, potassium high content, it is characterized in that: described coated urea S100 mainly is made up of dressing S100 and urea, the weight percent of the shared coated urea S100 of dressing S100 is 10-14, dressing S100 coated urea; Described dressing S100 is mainly by clay mineral, biodegradable resin, plant amylum and promoting agent are formed, and the shared dressing S100 of each component weight percent is: clay mineral: 53-57, biodegradable resin: 36-40, promoting agent: 0.8-2, plant amylum 4-8.
5. the controlled release composite fertilizer special for cotton of a kind of nitrogen according to claim 1, phosphorus, potassium high content, it is characterized in that: described dressing Repone K S80 mainly is made up of dressing S80 and Repone K, the weight percent of the shared dressing Repone K of dressing S80 S80 is 10-14, and dressing S80 wraps up Repone K; Described dressing S80 is mainly by clay mineral, biodegradable resin, plant amylum and promoting agent are formed, 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.
6. the preparation method of the controlled release composite fertilizer special for cotton of a kind of nitrogen as claimed in claim 1, phosphorus, potassium high content is characterized in that it comprises the steps:
1). preparation coated urea 100:(a) choose the granular urea that diameter is 3-4mm, in the fluidized-bed of packing into, be heated to 60-80 ℃; (b) weight percent by dressing 100 shared coated ureas 100 is 10-14, and the weight percent of the shared coated urea 100 of urea is that 86-90 chooses dressing 100, urea; Preparation dressing 100: be by shared dressing 100 weight percents of each component: clay mineral: 56-60, biodegradable resin: 39-43, promoting agent: 1-2 chooses clay mineral, biodegradable resin and promoting agent; Biodegradable resin is dissolved in tetrachloromethane and tetrachloroethane weight respectively to be accounted in 1/2 the mixing solutions, mixing solutions is by clay mineral, biodegradable resin and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose, adding clay mineral, promoting agent are heated to 90-110 ℃, is 4KPa with two-fluid spray nozzle at air atomizing pressure, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, drying, screening, getting diameter is the coated urea 100 of 3-4mm;
2). preparation coated urea S100:(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 S100 of dressing S100 is 10-14, and the weight percent of the shared coated urea S100 of urea is that 86-90 chooses dressing S100 and urea; Preparation dressing S100: be by the shared dressing S100 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose, 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, spray on the urea granules in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the coated urea S100 of 3-4mm;
3). 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, mixing solutions is by clay mineral, biodegradable resin, plant amylum and promoting agent: the weight ratio=6-12 of mixing solutions: 90 choose, 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, spray on the granular potassium sulfate in the fluidized-bed with the progress of per minute 2kg, dry, screening, getting diameter is the dressing Repone K S80 of 3-4mm;
4). by the shared weight percent of each raw material be: coated urea 100:15-16, coated urea S100:15-16, ammonium phosphate: 31-33, dressing Repone K S80:36-38 choose coated urea 100, coated urea S100, ammonium phosphate, dressing Repone K S80 raw material mix product.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173961A (en) * | 2010-12-23 | 2011-09-07 | 菏泽金正大生态工程有限公司 | Disease-preventing type controlled release fertilizer special for Xinjiang cotton, and preparation method and application thereof |
| CN105409571A (en) * | 2015-12-28 | 2016-03-23 | 铜仁学院 | Method for raising cotton yield and plantation benefits of high saline and alkaline land |
| CN108794266A (en) * | 2018-07-19 | 2018-11-13 | 韩涛 | Nitric acid phosphorous controlled release bulk blended fertilizer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040097C (en) * | 1996-06-06 | 1998-10-07 | 广州氮肥厂 | Coated fertilizer and its coating method and equipment for manufacturing said coated fertilizer |
| JP3836386B2 (en) * | 2002-03-20 | 2006-10-25 | 多木化学株式会社 | Coated granular fertilizer and method for producing the same |
| US20040020254A1 (en) * | 2002-08-02 | 2004-02-05 | Agrium | Controlled release fertilizer and method for production thereof |
| CN1257135C (en) * | 2003-01-16 | 2006-05-24 | 方连明 | Coated fertilizer and its preparation method |
| CN1219731C (en) * | 2003-11-14 | 2005-09-21 | 沈阳农业大学 | Fertilizer envelop liquid production method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173961A (en) * | 2010-12-23 | 2011-09-07 | 菏泽金正大生态工程有限公司 | Disease-preventing type controlled release fertilizer special for Xinjiang cotton, and preparation method and application thereof |
| CN102173961B (en) * | 2010-12-23 | 2012-04-18 | 菏泽金正大生态工程有限公司 | Disease-preventing type controlled release fertilizer special for Xinjiang cotton, and preparation method and application thereof |
| CN105409571A (en) * | 2015-12-28 | 2016-03-23 | 铜仁学院 | Method for raising cotton yield and plantation benefits of high saline and alkaline land |
| CN105409571B (en) * | 2015-12-28 | 2018-12-28 | 铜仁学院 | The method for improving heavy saline output of cotton and planting benefit |
| CN108794266A (en) * | 2018-07-19 | 2018-11-13 | 韩涛 | Nitric acid phosphorous controlled release bulk blended fertilizer |
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