CN103058752B - Preparation method for special slow-release long-acting compound fertilizer for paddy rice - Google Patents
Preparation method for special slow-release long-acting compound fertilizer for paddy rice Download PDFInfo
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- CN103058752B CN103058752B CN201210574306.9A CN201210574306A CN103058752B CN 103058752 B CN103058752 B CN 103058752B CN 201210574306 A CN201210574306 A CN 201210574306A CN 103058752 B CN103058752 B CN 103058752B
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- phosphate
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 124
- 150000001875 compounds Chemical class 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 43
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 39
- 235000009566 rice Nutrition 0.000 title claims abstract description 39
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000008187 granular material Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 19
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 19
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000008117 stearic acid Substances 0.000 claims abstract description 19
- 239000000618 nitrogen fertilizer Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 15
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004202 carbamide Substances 0.000 claims abstract description 11
- 229940072033 potash Drugs 0.000 claims abstract description 11
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 11
- 235000015320 potassium carbonate Nutrition 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 9
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 4
- 238000013268 sustained release Methods 0.000 claims description 27
- 239000012730 sustained-release form Substances 0.000 claims description 27
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 19
- 239000011574 phosphorus Substances 0.000 claims description 19
- 229910052698 phosphorus Inorganic materials 0.000 claims description 19
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 15
- 239000005696 Diammonium phosphate Substances 0.000 claims description 15
- 229910019142 PO4 Inorganic materials 0.000 claims description 15
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 claims description 15
- 239000000460 chlorine Substances 0.000 claims description 15
- 229910052801 chlorine Inorganic materials 0.000 claims description 15
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 15
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 15
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 15
- 239000010452 phosphate Substances 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 210000003608 fece Anatomy 0.000 claims description 9
- 238000005469 granulation Methods 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 9
- 239000010871 livestock manure Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 239000011435 rock Substances 0.000 claims description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 235000013339 cereals Nutrition 0.000 claims description 6
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 238000007601 warm air drying Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002367 phosphate rock Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 239000003979 granulating agent Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 235000015097 nutrients Nutrition 0.000 abstract description 6
- 239000002686 phosphate fertilizer Substances 0.000 abstract description 5
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 238000010410 dusting Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000001103 potassium chloride Substances 0.000 abstract 1
- 235000011164 potassium chloride Nutrition 0.000 abstract 1
- 238000003892 spreading Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 239000002689 soil Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 241000370738 Chlorion Species 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001149475 Gaeumannomyces graminis Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- FJZUPKJNMHFYOV-UHFFFAOYSA-N [Mg].[S].[Ca] Chemical compound [Mg].[S].[Ca] FJZUPKJNMHFYOV-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 244000038559 crop plants Species 0.000 description 1
- 230000001086 cytosolic effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B3/00—Fertilisers based essentially on di-calcium phosphate
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a preparation method for a special slow-release long-acting compound fertilizer for paddy rice. The compound fertilizer is a mixture of a plurality of fertilizers and components with no special fertilizer efficiency. The compound fertilizer granules are as fertilizer core and processed by coating and dusting powder; the compound fertilizer granules are characterized by being prepared from the following raw materials by mass: 25 to 45 parts of urea, 8 to 25 parts of ammonium chloride, 20 to 35 parts of potassium chloride, 20 to 35 parts of a mixed phosphate fertilizer, 7 to 11 parts of a granulating auxiliary agent and a proper amount of water. The preparation method for the compound fertilizer comprises the following steps: (1) preparation of a compound of a potash fertilizer and a nitrogen fertilizer; (2) preparation of the mixed phosphate fertilizer; (3) preparation of mixed particles of the components of the compound fertilizer; (4) coating with stearic acid; (5) powder spreading of a modified zeolite powder material; and (6) screening, metering, quality inspection and packaging of qualified fertilizer. The invention provides the preparation method for the special slow-release long-acting compound fertilizer which has overall nutrients and excellent slow releasing performance, enables fertilizer effectiveness to be maximumly performed, improves both output and quality of paddy rice and has low manufacturing cost.
Description
Technical field
The present invention is a kind of preparation method of sustained-release long-acting compound fertilizer of paddy rice special use.Belong to multiple fertilizer with without the mixture of special fertilizer efficiency component.
Background technology
Paddy rice is important food crop and cash crop, has statistics to show, its output and cultivated area, rank first in the world.In the people's livelihood and national economy, occupy critical role.Effectively utilize limited land resources, the yield and quality that improves rice crop is people's direction of making great efforts and eternal problem.
The nutritive element that rice growth need to absorb is kind more than 20 nearly, mainly contains nitrogen, phosphorus, three kinds of macroelement of potassium; The major element such as Calcium Magnesium Sulphur, silicon and boron, copper.?, the trace element such as molybdenum.These nutritive elements mainly provide by soil from fertilizer.
The content of chlorion surpasses 3% composite fertilizer and is called chlorine-based compound fertilizer, because chlorine-based compound fertilizer exists negative impact to the growth of some fear-chlorion crop, and chlorion concentrating in soil is residual in a large number, easily causes soil compaction, salinization, alkalization.So some composite fertilizer manufacturing enterprise selects potassium sulfate by the potassium source in compound fertilizer product, or sloughs the chlorion in Repone K, makes so-called S-based compound fertilizer.S-based compound fertilizer complicated process of preparation, production cost is high, and price is also higher, has increased agricultural-food production cost.
Yet, chlorine is one of seven kinds of necessary trace elements of plant-growth, chlorine element can enter vegetable cell by the photosynthesis of involved in plant, play the osmotic pressure of regulating plant cell and the startup of pore with closed, be conducive to the absorption of moisture and nutrient, improve its drought-resistant ability, chlorion has the effects such as the photosynthesis of promotion and fiber formation, and it is particularly suitable that the fibre crops such as crudefiber crop are used; Improve the resistance against diseases of plant, as the gaeumannomyces graminis disease of wheat, stripe rust, the stem wilt of corn etc.Chlorion has restraining effect to the nitrobacteria in soil, can delay ammonium nitrogen to the conversion rate of nitric nitrogen, thereby effectively reduce nitric nitrogen, run off and denitrification loss, and be that the fertilizer efficiency of nitrogenous fertilizer is lasting.Say, the stabilizing ion in chlorine crop plants cell, has active effect to the balance of storage of ions in cell and to the absorption of the elements such as nitrogen, phosphine, potassium, calcium, magnesium, silicon, is conducive to promote growing of plant stem-leaf again.
Paddy rice is the strong crop of resistance to chlorine power, and ammonium chloride, Repone K are cheap, are the comparatively ideal nitrogen in rice field, potash fertilizer kind.Paddy field soil moisture is sufficient, can play diluting effect to causing the chloride chemical fertilizer that salt ability is strong.Chlorine is the element being the most easily moved.Chlorine the most easily runs off or seepage in water, and unlikely salt damage and the chlorine evil of causing.
But chlorine-based compound fertilizer material plant recovery of nutrient of the prior art is only 25%-35%, wherein the utilization ratio less than 30% of nitrogenous fertilizer, loses especially severe, and causes the pollution of soil pollution, atmospheric environment.
How to make the chlorine element in compound manure play a positive role in promoting crop growth, can optimize, improve the utilization ratio of chlorine-based compound fertilizer material, can avoid again its disadvantageous effect to plant growth and edatope is that people expect the problem solving.
The high-quality nitrogenous fertilizer that urea is nitrogenous height, fertilizer efficiency is fast, consumption is large.But, urea in use, easily by approach such as volatilization, leaching, decomposition and runoffs, run off, cause fertilizer efficiency utilization ratio not high, according to statistics, this season utilization ratio only has 30% left and right, and this has not only caused the waste of chemical fertilizer, and the environment of depending on for existence for mankind such as atmosphere, water body soil.
The Chinese Patent Application No. 201110021688.8 < < biodegradable coated urea > > of Shikefeng Chemical Industry Co., Ltd.'s application have successfully solved the above problem that urea nitrogenous fertilizer exists, the stearic acid that utilization can be degraded under soil microorganisms effect is as the coated fertilizer of nitrogenous fertilizer urea, provide a kind of coated fertilizer biodegradable, pollution-free, can improve again the biodegradable coated urea product of the utilization ratio of fertilizer.But it is a kind of high-quality nitrogenous fertilizer, nutritive ingredient is single, can not be as the slow release fertilizer that is suitable for Rice Cropping and uses.
Phosphorus is the important composition element of cytoplasmic biomolecule, is also the requisite a kind of element of plant-growth.Phosphatic rock is the main raw mineral materials of manufacturing phosphate fertilizer and extracting phosphorus and compound thereof; But manufacture phosphate fertilizer and require the P in phosphatic rock
2o
5>=28%; Extract the phosphatic rock P that phosphorus and compound thereof require
2o
5content higher.
And along with the development of phosphorus chemical product and Phosphate Fertilizer Industry, ground phosphate rock requirement increases sharply, higher-grade phosphate rock resource is deficient.The mode of production that only depends on rich phosphorus ore can not meet the demands.In this case, the exploitation of the phosphatic rock resource that grade is not high, no matter for economizing on resources, or protection of the environment is all significant.
In sum, paddy rice-dedicated fertilizer material of the prior art exists following not enough:
1.. multilayer coating, complex manufacturing, investment is large, production cost is high.
2. coated fertilizer hard degradation, life-time service can bring negative impact to soil; Even soil is polluted, affect the quality of agricultural-food.
3. the main nutrient elements proportioning in fertilizer is unreasonable, and fertilizer efficiency utilization ratio is low.
4. utilization rate of fertilizer is low, waste resource, contaminate environment.
5. S-based compound fertilizer manufacture original is high, causes fertilizer price high, has increased peasant's economical load.
6. the preparation method of the sustained-release long-acting compound fertilizer of paddy rice special use is also rare.
Summary of the invention
The object of the invention is to avoid above-mentioned weak point of the prior art; and provide a kind of comprehensive nutrition; sustained release performance is excellent; can fully meet the demand of paddy rice to nutrient; bring into play to greatest extent the effect of fertilizer; can improve rice yield and can improve again its quality, economize on resources, protection of the environment again, the preparation method of the sustained-release long-acting compound fertilizer of the paddy rice special use that manufacturing cost and selling price are lower.
Object of the present invention can reach by following measure:
The preparation method of the sustained-release long-acting compound fertilizer of paddy rice special use of the present invention, is characterized in that with compound fertilizer granule as fertilizer sources core, then makes after processing through filming, applying powder; Described compound fertilizer granule is by making according to the raw material of mass fraction meter as follows:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent for example under:
Diammonium phosphate 30～50
Fused(calcium magnesium)phosphate 20～40
Floats 20～45
Described floats are P
2o
5the low grade rock phosphate of content between 10%～20%;
Described granulation aid is mixed and is formed by the bauxitic clay powder of 60%～70% wilkinite and 40%～30%;
Its preparation method comprises the steps:
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
First after urea 25～45 weight part heating and meltings, add ammonium chloride 8～25 weight parts and Repone K 20～35 weight parts to mix, make the potash fertilizer, the nitrogenous fertilizer mixture that contain potassium, chlorine, ammonium, standby;
2.. mixed phosphorus fertilizer preparation
A. the preparation of floats
Will be containing P
2o
510%～20% phosphatic rock grinds, the fineness of floats is controlled 100 order ± 10, standby;
B. mix
Floats 20～45 weight parts prepared by diammonium phosphate 30～50 weight parts, fused(calcium magnesium)phosphate 25～40 weight parts and step a mix, standby;
3.. the preparation of compound fertilizer granule
Mixed phosphorus fertilizer 20～35 weight parts that 2. potash fertilizer that 1. step is prepared, nitrogenous fertilizer mixture and step are prepared, are mixed evenly, and add granulating agent 7～11 weight parts, and water is appropriate.Utilize traditional granulator granulation, make compound fertilizer granule, standby;
4.. stearic acid is filmed
Stearic consumption is 0.6%～1.2% of each component composite grain quality of compound manure of 3. preparing of step, and coating method is as follows:
A.. the stearic preparation of melting
Coating, drops in stearic acid fusion tank with stearic acid after according to formula accurate-metering, is heated to molten state, standby;
B.. coating
3. each component composite grain of compound manure of preparing according to formula accurate-metering step, the melting stearic acid of preparing with step a carries out particle and sprays outward in drum-type mixing granulation machine, makes compound fertilizer granule outside surface form coating as far as possible uniformly, warm air drying, room temperature wind are cooling, standby; Processing condition are as follows:
Warm air drying temperature is not higher than 80 ℃
Cooling draught temperature is not higher than 50 ℃;
5.. modified zeolite powder powder body material face powder
A. the preparation of mixed powder for face powder
According to Magnesium Stearate 1.1%～2.5%, the proportioning raw materials of zeolite powder 97.5%～98.9%, accurately takes respectively each component of raw material, mixes, and grinding flour, controls powder fineness and cross 120 mesh sieves, standby;
B. the coating of applying powder
The mixed powder that adopts step a to prepare, by through step 4.. the processing of apply powder again of the compound fertilizer granule after stearic acid is filmed, and the consumption of the coating of applying powder is controlled at every 1000kg compound fertilizer granule 10～15kg;
6.. screening, metering, quality test, qualified rear packing, makes the sustained-release long-acting compound fertilizer of paddy rice special use; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour.
In formula of the present invention, adopted and be suitable for the chloride-based slow-release compound fertilizer granule that Rice Cropping is used, then chloro composite N-K fertilizer particle is carried out stearic acid once coated and modified zeolite powder secondary surface face powder make.Be mainly after utilizing urea melting liquid to mix with ammonium chloride, Repone K, mixed phosphorus fertilizer, utilize traditional tablets press by each component mixing granulation of described compound manure, production technique is easy, and useful environment protection has reduced the production cost of compound manure.
The coated fertilizer that the present invention adopts can be degraded under soil microorganisms effect, and stearic acid is easy to decompose generation CO under the effect of soil microorganisms
2and H
2o, has avoided the pollution of coated fertilizer to environment, has saved fossil resource, is conducive to the eubiosis.
The not high phosphatic rock of grade is introduced to formula of the present invention, and no matter for economizing on resources, or protection of the environment is all significant.
Object of the present invention can also reach by following measure:
The preparation method of the sustained-release long-acting compound fertilizer of paddy rice special use of the present invention, is characterized in that by making according to the raw material of mass fraction meter as follows:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent for example under:
Diammonium phosphate 35～45
Fused(calcium magnesium)phosphate 20～30
Floats 30～35.
It is preferred technical scheme.
The preparation method of the sustained-release long-acting compound fertilizer of paddy rice special use of the present invention, is characterized in that by making according to the raw material of mass fraction meter as follows:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent for example under:
Diammonium phosphate 45
Fused(calcium magnesium)phosphate 20
Floats 35
It is a preferred technical scheme.
The sustained-release long-acting compound fertilizer of the paddy rice special use of preparing according to the preparation method of the sustained-release long-acting compound fertilizer of paddy rice special use of the present invention, is characterized in that product reaches following technical indicator:
The application process of the sustained-release long-acting compound fertilizer of the paddy rice special use of preparing according to the preparation method of the sustained-release long-acting compound fertilizer of paddy rice special use of the present invention, is characterized in that trench digging imposes on below earth's surface, base fertilizer: 40～50Kg/ mu; Topdress: 20～30Kg/ mu.
The preparation method of the sustained-release long-acting compound fertilizer of paddy rice special use of the present invention, compared to existing technology by following positively effect:
1. a kind of comprehensive nutrition is provided; sustained release performance is excellent; can fully meet the demand of paddy rice to nutrient; bring into play to greatest extent the effect of fertilizer; can improve rice yield can improve again its quality, economize on resources; protection of the environment again, the preparation method of the sustained-release long-acting compound fertilizer of the paddy rice special use that manufacturing cost and selling price are lower.
2. individual layer coating, generating process is simple, low equipment investment, production cost is low.
3. coated fertilizer can be degraded under soil microorganisms effect, has avoided the pollution of coated fertilizer to edatope.
4. adopted and be suitable for the chloride-based slow-release compound manure formula that Rice Cropping is used, reduced selling price.
5. adopt the raw material of low grade as fertilizer sources.Save valuable higher-grade phosphate rock resource.While protection of the environment.
6. had good sustained release effect, utilization rate of fertilizer is high.
Embodiment
The present invention will now be further detailed embodiment:
Embodiment 1
The sustained-release long-acting compound fertilizer of preparing in accordance with the following steps paddy rice special use
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
First after urea 25 weight part heating and meltings, add ammonium chloride 12 weight parts and Repone K 27 weight parts to mix, make the potash fertilizer, the nitrogenous fertilizer mixture that contain potassium, chlorine, ammonium, standby;
2.. mixed phosphorus fertilizer preparation
A. the preparation of floats
Will be containing P
2o
510%～20% phosphatic rock grinds, the fineness of floats is controlled 100 order ± 10, standby;
B. mix
Floats 35 weight parts prepared by diammonium phosphate 45 weight parts, fused(calcium magnesium)phosphate 20 weight parts and step a mix, standby;
3.. the preparation of compound fertilizer granule
Mixed phosphorus fertilizer 28 weight parts that 2. potash fertilizer that 1. step is prepared, nitrogenous fertilizer mixture and step are prepared, are mixed evenly, and add granulating agent 8 weight parts, and water is appropriate.Utilize traditional granulator granulation, make compound fertilizer granule, standby;
4.. stearic acid is filmed
Stearic consumption is 1.2% of each component composite grain quality of compound manure of 3. preparing of step, and coating method is as follows:
A.. the stearic preparation of melting
Coating, drops in stearic acid fusion tank with stearic acid after according to formula accurate-metering, is heated to molten state, standby;
B.. coating
3. the compound fertilizer granule of preparing according to formula accurate-metering step, the melting stearic acid of preparing with step a carries out particle and sprays outward in drum-type mixing granulation machine, makes composite grain outside surface form coating as far as possible uniformly, warm air drying, room temperature wind are cooling, standby; Processing condition are as follows:
Warm air drying temperature is not higher than 80 ℃
Cooling draught temperature is not higher than 50 ℃;
5.. modified zeolite powder powder body material face powder
A. the preparation of mixed powder for face powder
According to Magnesium Stearate 1.1%～2.5%, the proportioning raw materials of zeolite powder 97.5%～98.9%, accurately takes respectively each component of raw material, mixes, and grinding flour, controls powder fineness and cross 120 mesh sieves, standby;
B. the coating of applying powder
The mixed powder that adopts step a to prepare, by through step 4.. the processing of apply powder again of the compound fertilizer granule after stearic acid is filmed, and the consumption of the coating of applying powder is controlled at every 1000kg compound fertilizer granule 10～15kg;
6.. screening, metering, quality test, qualified rear packing, makes the sustained-release long-acting compound fertilizer of paddy rice special use; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour;
Product reaches following technical indicator:
Embodiment 2～embodiment 7
According to the method for embodiment 1 and step, according to the composition of raw materials of table 1, prepare the sustained-release long-acting compound fertilizer of paddy rice special use
Table 1
Make the sustained-release long-acting compound fertilizer of paddy rice special use; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour;
Product reaches following technical indicator:
Claims (4)
1. a preparation method for the sustained-release long-acting compound fertilizer of paddy rice special use, is characterized in that with compound fertilizer granule as fertilizer sources core, then makes after processing through filming, applying powder; Described compound fertilizer granule is by making according to the raw material of mass fraction meter as follows:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent for example under:
Diammonium phosphate 30～50
Fused(calcium magnesium)phosphate 20～40
Floats 20～45
Described floats are P
2o
5the low grade rock phosphate of content between 10%～20%;
Described granulation aid is mixed and is formed by the bauxitic clay powder of 60%～70% wilkinite and 40%～30%;
Its preparation method comprises the steps:
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
First after urea 25～45 weight part heating and meltings, add ammonium chloride 8～25 weight parts and Repone K 20～35 weight parts to mix, make the potash fertilizer, the nitrogenous fertilizer mixture that contain potassium, chlorine, ammonium, standby;
2.. mixed phosphorus fertilizer preparation
A. the preparation of floats
Will be containing P
2o
510%～20% phosphatic rock grinds, the fineness of floats is controlled 100 order ± 10, standby;
B. mix
Floats 20～45 weight parts prepared by diammonium phosphate 30～50 weight parts, fused(calcium magnesium)phosphate 20～40 weight parts and step a mix, standby;
3.. the preparation of compound fertilizer granule
Mixed phosphorus fertilizer 20～35 weight parts that 2. potash fertilizer that 1. step is prepared, nitrogenous fertilizer mixture and step are prepared, are mixed evenly, and add granulating agent 7～11 weight parts, and water is appropriate, utilizes traditional granulator granulation, makes compound fertilizer granule, standby;
4.. stearic acid is filmed
Stearic consumption is 0.6%～1.2% of each component composite grain quality of compound manure of 3. preparing of step, and coating method is as follows:
A.. the stearic preparation of melting
Coating, drops in stearic acid fusion tank with stearic acid after according to formula accurate-metering, is heated to molten state, standby;
B.. coating
3. each component composite grain of compound manure of preparing according to formula accurate-metering step, the melting stearic acid of preparing with step a carries out particle and sprays outward in drum-type mixing granulation machine, makes compound fertilizer granule outside surface form coating as far as possible uniformly, warm air drying, room temperature wind are cooling, standby; Processing condition are as follows:
Warm air drying temperature is not higher than 80 ℃
Cooling draught temperature is not higher than 50 ℃;
5.. modified zeolite powder powder body material face powder
A. the preparation of mixed powder for face powder
According to Magnesium Stearate 1.1%～2.5%, the proportioning raw materials of zeolite powder 97.5%～98.9%, accurately takes respectively each component of raw material, mixes, and grinding flour, controls powder fineness and cross 120 mesh sieves, standby;
B. the coating of applying powder
The mixed powder that adopts step a to prepare, by through step 4.. the processing of apply powder again of the compound fertilizer granule after stearic acid is filmed, and the consumption of the coating of applying powder is controlled at every 1000kg compound fertilizer granule 10～15kg;
6.. screening, metering, quality test, qualified rear packing, makes the sustained-release long-acting compound fertilizer of paddy rice special use; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour; Product reaches following technical indicator:
2. according to the preparation method of the sustained-release long-acting compound fertilizer of the paddy rice special use of claim 1, it is characterized in that compound fertilizer granule is by making according to the raw material of mass fraction meter as follows:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent for example under:
Diammonium phosphate 35～45
Fused(calcium magnesium)phosphate 20～30
Floats 30～35.
3. according to the preparation method of the sustained-release long-acting compound fertilizer of the paddy rice special use of claim 1, it is characterized in that compound fertilizer granule is by making according to the raw material of mass fraction meter as follows:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent for example under:
Diammonium phosphate 45
Fused(calcium magnesium)phosphate 20
Floats 35.
4. the application process of the sustained-release long-acting compound fertilizer of the paddy rice special use of preparing according to the preparation method of the sustained-release long-acting compound fertilizer of the paddy rice special use of claim 1, is characterized in that trench digging imposes on below earth's surface, base fertilizer: 40～50Kg/ mu; Topdress: 20～30Kg/ mu.
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| CN201210574306.9A CN103058752B (en) | 2012-12-26 | 2012-12-26 | Preparation method for special slow-release long-acting compound fertilizer for paddy rice |
| PCT/CN2013/001245 WO2014101269A1 (en) | 2012-12-26 | 2013-10-14 | Method for preparing special slow-release long-acting compound fertilizer for paddy rice |
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| CN103058752B (en) * | 2012-12-26 | 2014-11-05 | 施可丰化工股份有限公司 | Preparation method for special slow-release long-acting compound fertilizer for paddy rice |
| CN103351210B (en) * | 2013-06-07 | 2015-09-30 | 倪群 | Multi-element fertilizer special for rice and preparation method thereof |
| CN103518451B (en) * | 2013-10-21 | 2015-05-27 | 东北农业大学 | Efficient mechanical topdressing method for rice field in cold region |
| CN105801254A (en) * | 2016-03-10 | 2016-07-27 | 山东植丰农化集团有限公司 | High-phosphate slow and controlled-release fertilizer and preparation method thereof |
| CN107298609B (en) * | 2017-06-28 | 2021-02-26 | 中国水稻研究所 | Long-acting rice ecological special fertilizer suitable for basal application and preparation method thereof |
| US20210323884A1 (en) * | 2020-04-15 | 2021-10-21 | Innovations for World Nutrition, LLC | Fertilizer or plant growth enhancer using lipid and optionally a carbohydrate to increase plant yield and method of increasing plant yield |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1235944A (en) * | 1999-06-18 | 1999-11-24 | 徐忱修 | Multi-element long-acting organic compound fertilizer and preparation method thereof |
| CN101066901A (en) * | 2007-04-03 | 2007-11-07 | 张国忠 | Soline alkali resisting rice fertilizer |
| CN102093144A (en) * | 2011-01-19 | 2011-06-15 | 施可丰化工股份有限公司 | Biodegradable coated urea |
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| CN102336617B (en) * | 2011-09-02 | 2013-09-25 | 史丹利化肥股份有限公司 | High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof |
| CN102320901B (en) * | 2011-09-02 | 2012-11-28 | 史丹利化肥股份有限公司 | Melt biomass composite chlorine-based slow release fertilizer and preparation method thereof |
| CN103058752B (en) * | 2012-12-26 | 2014-11-05 | 施可丰化工股份有限公司 | Preparation method for special slow-release long-acting compound fertilizer for paddy rice |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1235944A (en) * | 1999-06-18 | 1999-11-24 | 徐忱修 | Multi-element long-acting organic compound fertilizer and preparation method thereof |
| CN101066901A (en) * | 2007-04-03 | 2007-11-07 | 张国忠 | Soline alkali resisting rice fertilizer |
| CN102093144A (en) * | 2011-01-19 | 2011-06-15 | 施可丰化工股份有限公司 | Biodegradable coated urea |
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