CN102976870B - Method for producing special large-particle slow release fertilizer for oil palm - Google Patents
Method for producing special large-particle slow release fertilizer for oil palm Download PDFInfo
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- CN102976870B CN102976870B CN201210564815.3A CN201210564815A CN102976870B CN 102976870 B CN102976870 B CN 102976870B CN 201210564815 A CN201210564815 A CN 201210564815A CN 102976870 B CN102976870 B CN 102976870B
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Abstract
The invention discloses a method for producing a special large-particle slow release fertilizer for oil palm, belonging to the technical field of fertilizer manufacture. The method comprises the steps of: firstly, coating particular urea preheated to 50-100 DEG C by adopting a coating material in a drum coating machine; after coating is completed, adding monoammonium phosphate, magnesium oxide, potassium chloride, copper sulfate pentahydrate, sodium borate and zinc sulfate, uniformly stirring, adding a mixture into an extruding and pelleting machine for extruding and pelleting; and placing and curing the pelleted semi-finished special slow release fertilizer at a temperature of 50-80 DEG C for 20-30h, and then naturally cooling and sieving to obtain the finished product of the special large-particle slow release fertilizer. The special large-particle slow release fertilizer for oil palm, with the diameter of 10-60mm and the weight of 10-200g, can be produced according to the size of a mould of the extruding and pelleting machine. The method has the advantages of short process, less returned materials, and convenience and flexibility in operation. The special slow release fertilizer has the characteristics of high particle uniformity, high strength and no powderization.
Description
Technical field
The production method that the present invention relates to a kind of macrobead oil palm Special slow release fertilizer, belongs to Production of manure technical field, and what be specifically related to is the technological method of manufacturing a kind of macrobead oil palm Special slow release fertilizer taking urea, monoammonium phosphate, Repone K etc. as main raw material.
Background technology
Plam oil is refined and is formed by the oil palm fruit rolling of the oil palm tree knot of torrid areas, is world's second largest class edible vegetable oil.Unit output is 6～11 times of other vegetables oil crops such as soybean, cottonseed, peanut.Over nearly 20 years, the growth of world wide to vegetables oil demand, and the continuous innovation of oil palm cultivation and processing technology, greatly promote the development of oil palm industry, make the oily ultimate production rapid development of world palm fibre, brown oil yield has exceeded soya-bean oil, becomes global first grease kind.
Oil palm is distributed widely in the vast torrid areas of Asia, Africa and Latin America between 15 ° of 10 °, south latitude and north latitude, and the main place of production is distributed in Malaysia, the Indonesia in Asia, western part and the middle part in Africa, the north of South America and Central America.Wherein, Malaysian and Indonesian oil palm cultivated area accounts for world's cultivation the more than 80% of the total area.These countries are all using plantation oil palm and the oily important component part as developing national economy of production palm fibre, and therefore various countries palm fibre oil yield increases rapidly year by year.Malaysia of Liang great Zong You main product state, Indonesia increased and reach 35% between 5 year, and Guatemala is unexpectedly up to 112%.
There are similar weather condition and physical geography condition in these areas.Now taking Malaysia as example explanation.Malaysia is positioned at area, equator, annual without obvious seasonal variation, belongs to tropical rainy climate.Daytime is conventionally sunny, warmer climate, and medial temperature is 26～32 degrees Celsius.Western Malaysian average precipitation is 2000～3000 millimeters, and eastern Malaysian average precipitation is more than 3000 millimeters.
Higher quantity of precipitation by causing in fertilise the loss of the nutrient such as nitrogen, phosphorus, potassium accelerate, use slow-release fertilizer and can improve the utilization ratio of fertilizer.On market, common slow-release fertilizer is coated fertilizer, and general particle is at 2～5 millimeters.In when fertilising, the nutrient weight that every adult oil palm tree need to apply fertilizer is fixed, and therefore needs the fertilizer that takes certainweight to apply fertilizer, inconvenience in operation.The nutrient of common slow-release fertilizer is not to carry out proportioning according to the needed nutrients ratio of oil palm, therefore, can not be well supplies with according to the oil palm needed nutrient of growing.
The ratio of macrobead oil palm Special slow release fertilizer granule surface area and volume is relatively little, has following advantage compared with non-macrobead slow release fertilizer.
Macrobead oil palm Special slow release fertilizer is need to carry out proportioning according to 3 years above oil palms of the age of tree, not only supplies with the needed macroelement nitrogen of oil palm, phosphorus, potassium, also supplies with the needed middle trace element magnesium of oil palm, copper, zinc, boron.
Nutrient discharge more slowly, more stable.Nutrient discharges influenced by ambient temperature less.Compared with common fertilizer, can improve utilization rate of fertilizer 40%～50%.
Every particle nutrition is even, can realize Tree Precise Fertilization, and every macrobead slow release fertilizer weight is fixed, and can determine the sowing amount of fertilizer when fertilising by grain.
Fertilising is convenient, and fertilizer efficiency period is long, reduces fertilizer application frequency, thereby reduces artificial input.
Summary of the invention
The present invention seeks to using urea as core, coated fertilizer is wrapped on urea, the blending such as the urea after coating and monoammonium phosphate, magnesium oxide, Repone K, cupric sulfate pentahydrate, borax, zinc sulfate are also carried out extruder grain, after curing, naturally cooling, screening, make finished product.
The present invention is achieved in that the production method of this macrobead oil palm Special slow release fertilizer is: first will join in rotary drum seed-coating machine and carry out coating with coated fertilizer to the granular urea between 100 degree through being preheating to 50 degree; After coating, add monoammonium phosphate, magnesium oxide, Repone K, cupric sulfate pentahydrate, borax, zinc sulfate, mix, compound is joined and in Squeezinggranulator, carries out extruder grain; Work in-process after granulation, under 50～80 degree, solidify through the placements of 20～30 hours, then after naturally cooling screening, obtain finished product.
Macrobead oil palm Special slow release fertilizer nitrogen content in the present invention is 10%～15%, phosphorus pentoxide content 5%～12%, potassium oxide content is 15%～25%, content of magnesia is 3%～8%, copper content is 0.3%～0.6%, zinc content is 0.3%～0.6%, and boron trioxide content is 0.3%～0.6%.This formula range is suitable for 3 years above oil palm trees of the age of tree, and each nutrient proportioning can be adjusted according to soil element content in described scope.
The coated fertilizer adding in the present invention is the mixture of glycol methacrylate, methyl methacrylate, butyl methacrylate, chloroprene rubber, ethylene glycol-cis-butenedioic anhydride unsaturated polyester, vinylbenzene, paraffin, benzoyl peroxide paste.Wherein, the mass fraction of each material is: 5～10 parts of glycol methacrylates (quality), 46～60 parts of methyl methacrylates (quality), 5～15 parts of butyl methacrylate (quality), 2～4 parts of chloroprene rubbers (quality), 0.5～1.5 part of ethylene glycol-cis-butenedioic anhydride unsaturated polyester (quality), 30～40 parts of vinylbenzene (quality), 0.1～0.2 part, paraffin (quality), benzoyl peroxide is stuck with paste 2～4 parts (quality).The coated fertilizer total amount adding is 1～10% of urea, monoammonium phosphate, magnesium oxide, Repone K, cupric sulfate pentahydrate, borax, zinc sulfate material total amount.
Macrobead oil palm Special slow release fertilizer particle in the present invention is spheroid shape shape or oblate spheroid type shape.According to the mould size of Squeezinggranulator can produce diameter at 10～60 millimeters, weight the macrobead oil palm Special slow release fertilizer at 10～200 grams.
Macrobead oil palm Special slow release fertilizer slow-release period according to explained hereafter of the present invention is 9～12 months.
Technology of the present invention has the following advantages.
Technical process of the present invention is short, flexible to operation.
Technique of the present invention can reach more than 99% through yield rate after screening.Returning charge is little.
The product particle that adopts Technology of the present invention to produce is even, intensity is high, not efflorescence.
Brief description of the drawings
Fig. 1 is macrobead oil palm Special slow release fertilizer production technological process.
Embodiment
By following instance, processing method of the present invention is described.But example is not limitation of the present invention.
Example 1.
The configuration of coated fertilizer: 3.5 kilograms of glycol methacrylates, 25 kilograms of methyl methacrylates, 5 kilograms of butyl methacrylate, 1 kilogram of chloroprene rubber, 0.25 kilogram of ethylene glycol-cis-butenedioic anhydride unsaturated polyester, 15 kilograms of vinylbenzene, 0.075 kilogram, paraffin, benzoyl peroxide are stuck with paste to 1.5 kilograms and mix for subsequent use.
First will join in rotary drum seed-coating machine through 299 kilograms of granular ureas that are preheating to 80 degree, material evenly adds above-mentioned coated fertilizer to carry out coating after evenly rotating continuously; After coating, add 114 kilograms of monoammonium phosphates (nitrogenous 11%, Vanadium Pentoxide in FLAKES 44%), magnesia 58.6 kilograms of (content of magnesia 70%), Repone K 417 kilograms of (potassium oxide content 60%), cupric sulfate pentahydrate 21 kilograms of (containing cupric sulfate pentahydrate 95%), borax 15 kilograms of (borax 95%), 24 kilograms of Zinc Sulphate Heptahydrates (containing Zinc Sulphate Heptahydrate 95%), mix, compound is joined and in Squeezinggranulator, carries out extruder grain; Work in-process after granulation, under 75 degree, solidify through the placements of 25 hours, then after naturally cooling screening, obtain finished product.This product is the macrobead Special slow release fertilizer that is suitable for the more than 3 years oil palm of the age of tree of nitrogenous 15%, Vanadium Pentoxide in FLAKES 5%, potassium oxide 25%, magnesium oxide 4%, copper 0.5%, zinc 0.5%, boron trioxide 0.5%.
Example 2.
The configuration of coated fertilizer: 5 kilograms of glycol methacrylates, 30 kilograms of methyl methacrylates, 7 kilograms of butyl methacrylate, 2 kilograms of chloroprene rubbers, 0.5 kilogram of ethylene glycol-cis-butenedioic anhydride unsaturated polyester, 20 kilograms of vinylbenzene, 0.05 kilogram, paraffin, benzoyl peroxide are stuck with paste to 1 kilogram and mix for subsequent use.
First will join in rotary drum seed-coating machine through 272 kilograms of granular ureas that are preheating to 75 degree, angle and the rotating speed of adjusting rotary drum seed-coating machine make, after the distribution of material Uniform Flow, evenly to add above-mentioned coated fertilizer to carry out coating; After coating, add successively 228 kilograms of monoammonium phosphates (nitrogenous 11%, Vanadium Pentoxide in FLAKES 44%), magnesia 40.35 kilograms of (content of magnesia 75%), Repone K 334 kilograms of (potassium oxide content 60%), cupric sulfate pentahydrate 21 kilograms of (containing cupric sulfate pentahydrate 95%), borax 15 kilograms of (borax 95%), 24 kilograms of Zinc Sulphate Heptahydrates (containing Zinc Sulphate Heptahydrate 95%), make each material fully mix and not lump, compound is joined and in Squeezinggranulator, carries out extruder grain; Work in-process after granulation are placed 30 hours under 65 degree environment, then after naturally cooling screening, obtain finished product.The composition of this product is nitrogenous 15%, Vanadium Pentoxide in FLAKES 10%, potassium oxide 20%, magnesium oxide 3%, copper 0.5%, zinc 0.5%, boron trioxide 0.5%, and this product is for the fertilising of the more than 3 years oil palm of the age of tree.
Claims (1)
1. a production method for macrobead oil palm Special slow release fertilizer, is characterized in that the step of the method comprises:
(1) coated fertilizer total amount is 1～10% of urea, monoammonium phosphate, magnesium oxide, Repone K, cupric sulfate pentahydrate, borax, zinc sulfate material total amount, the each component proportion of coated fertilizer is mass fraction, ratio range is as follows: 5～10 parts of glycol methacrylates, 46～60 parts of methyl methacrylates, 5～15 parts of butyl methacrylate, 2～4 parts of chloroprene rubbers, 0.5～1.5 part of ethylene glycol-cis-butenedioic anhydride unsaturated polyester, 30～40 parts of vinylbenzene, 0.1～0.2 part, paraffin, benzoyl peroxide is stuck with paste 2～4 parts; Coated fertilizer is mixed for subsequent use;
(2) production of macrobead oil palm Special slow release fertilizer: first will join in rotary drum seed-coating machine and carry out coating with coated fertilizer to the granular urea between 100 degree through being preheating to 50 degree; After coating, add monoammonium phosphate, magnesium oxide, Repone K, cupric sulfate pentahydrate, borax, zinc sulfate, mix, compound is joined and in Squeezinggranulator, carries out extruder grain; Work in-process after granulation, under 50～80 degree, solidify through the placements of 20～30 hours, then after naturally cooling screening, obtain finished product;
(3) nitrogen content of macrobead oil palm Special slow release fertilizer is 10%～15%, phosphorus pentoxide content 5%～12%, potassium oxide content is 15%～25%, content of magnesia is 3%～8%, copper content is 0.3%～0.6%, zinc content is 0.3%～0.6%, boron trioxide content is 0.3%～0.6%, and this formula range is suitable for 3 years above oil palm trees of the age of tree, and each nutrient proportioning can be adjusted according to soil element content in described scope.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103694048B (en) * | 2013-12-20 | 2015-09-23 | 海洋石油富岛有限公司 | The dedicated release-controlled formula fertilizer of a kind of oil palm |
| CN103819252B (en) * | 2014-03-11 | 2015-09-23 | 湖北中化东方肥料有限公司 | A kind of rubber tree dedicated fertilizer and preparation method thereof |
| CN106397071A (en) * | 2016-08-28 | 2017-02-15 | 天长市天兴园林绿化工程有限公司 | Modified composite coated slow-release fertilizer for garden planting and preparation method thereof |
| CN115448788A (en) * | 2022-10-12 | 2022-12-09 | 广州新农科肥业科技有限公司 | Production process of long-acting special fertilizer for organic and inorganic oil palm |
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