CN100999427A - Film coated control release composite fertilizer special for regetables and its making method - Google Patents
Film coated control release composite fertilizer special for regetables and its making method Download PDFInfo
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- CN100999427A CN100999427A CN 200610155856 CN200610155856A CN100999427A CN 100999427 A CN100999427 A CN 100999427A CN 200610155856 CN200610155856 CN 200610155856 CN 200610155856 A CN200610155856 A CN 200610155856A CN 100999427 A CN100999427 A CN 100999427A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002131 composite material Substances 0.000 title claims description 23
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 239000002689 soil Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 13
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 13
- 239000003112 inhibitor Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 25
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 21
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- 239000000618 nitrogen fertilizer Substances 0.000 claims description 11
- 210000003608 fece Anatomy 0.000 claims description 10
- 239000010871 livestock manure Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 229920001661 Chitosan Polymers 0.000 claims description 8
- 229920002261 Corn starch Polymers 0.000 claims description 8
- 239000008120 corn starch Substances 0.000 claims description 8
- 210000003097 mucus Anatomy 0.000 claims description 8
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 8
- 239000004925 Acrylic resin Substances 0.000 claims description 7
- 229920000178 Acrylic resin Polymers 0.000 claims description 7
- 239000013543 active substance Substances 0.000 claims description 7
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 7
- 239000013530 defoamer Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 239000011686 zinc sulphate Substances 0.000 claims description 7
- 235000009529 zinc sulphate Nutrition 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000007931 coated granule Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 238000007601 warm air drying Methods 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 2
- 229920000053 polysorbate 80 Polymers 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims 1
- 229920002689 polyvinyl acetate Polymers 0.000 claims 1
- 229910000368 zinc sulfate Inorganic materials 0.000 claims 1
- 229960001763 zinc sulfate Drugs 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 235000015097 nutrients Nutrition 0.000 abstract description 8
- 239000011573 trace mineral Substances 0.000 abstract description 5
- 235000013619 trace mineral Nutrition 0.000 abstract description 5
- 235000013311 vegetables Nutrition 0.000 abstract description 5
- 230000012010 growth Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000013270 controlled release Methods 0.000 abstract description 3
- 229920002472 Starch Polymers 0.000 abstract 1
- -1 defoamers Substances 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000012527 feed solution Substances 0.000 abstract 1
- 230000004720 fertilization Effects 0.000 abstract 1
- 239000003607 modifier Substances 0.000 abstract 1
- 235000021048 nutrient requirements Nutrition 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 abstract 1
- 235000019698 starch Nutrition 0.000 abstract 1
- 239000008107 starch Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 6
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 5
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 5
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229940090496 Urease inhibitor Drugs 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- RDXARWSSOJYNLI-UHFFFAOYSA-N [P].[K] Chemical compound [P].[K] RDXARWSSOJYNLI-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000021108 sauerkraut Nutrition 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 241001478887 unidentified soil bacteria Species 0.000 description 1
- 239000002601 urease inhibitor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fertilizers (AREA)
Abstract
一种包膜控释蔬菜专用复合肥的制法，它包括膜料液的合成和肥料的包裹两个过程。其特征是选用天然、环保的高分子材料聚乙烯醇和淀粉作为主要材料，加入改性剂、表面活性剂、泡消剂、保水剂、抑制剂及载体微量元素制成包膜料液，在特定的、简单的工艺条件下，加入无机矿粉包裹颗粒复合肥，制成一种既能控制养分释放，同时又可以改良土壤理化性质的环境友好的多功能包膜缓释控释肥，肥效达80～100天，可一次施肥满足作物整个生育期的养分需求，有效地提高了肥料利用率，减少环境污染，节约了能源。生产所用原料廉价易得，工艺流程简单，易于操作生产，便于推广。The invention discloses a method for preparing special compound fertilizer for coated and controlled-release vegetables, which includes two processes of synthesizing the film feed solution and wrapping the fertilizer. It is characterized in that polyvinyl alcohol and starch, a natural and environmentally friendly polymer material, are selected as the main materials, and modifiers, surfactants, defoamers, water retaining agents, inhibitors and carrier trace elements are added to make a coating liquid. Under the simple and simple process conditions, adding inorganic mineral powder to wrap granular compound fertilizer, an environmentally friendly multi-functional coated slow-release and controlled-release fertilizer that can control nutrient release and improve soil physical and chemical properties can be made. For 80-100 days, one-time fertilization can meet the nutrient requirements of crops throughout the growth period, effectively improving the utilization rate of fertilizers, reducing environmental pollution, and saving energy. The raw materials used in the production are cheap and easy to obtain, the technological process is simple, the operation and production are easy, and the promotion is convenient.
Description
Technical field
The method for making of a kind of film coated control release composite fertilizer special for regetables that the present invention relates to belongs to the fertilizer preparing technical field.
Technical background
Chinese cabbage is one of traditional vegetable variety of China, and it is cheap, and is nutritious, and the output height is easy to preserve, and all there is plantation widely the nationwide, is referred to as " Chinese cabbage of China ".Especially in China the Northeast because its valency low, easily deposit, can also pickle good to eat sauerkraut, become one of main vegetables that people survive the winter.
But at present, China's planting vegetable is owing to excessively use common chemical fertilizer, nitrate content severe overweight in the plant materials, serious harm HUMAN HEALTH.Especially vegetables need more nitrogen manure, and leaching, denitrification, volatilization loss take place in soil easily, cause in the fertilizer loss of nutrient serious, make utilization rate of fertilizer extremely low, and have directly caused the pollution of environment.Both at home and abroad for improving utilization rate of fertilizer, carried out the development of coated fertilizer in succession, but general complex manufacturing, though obtain the effect of certain prolongation fertilizer efficiency, but can not effectively control the release of fertilizer nutrient, and mainly be to be released to the master, can not take into account the phosphorus potassium nutrition and discharge to prolong nitrogen nutrient.
The commercially available price comparison of Chinese cabbage is low, and the profit of plantation is less, topdresses if adopt common fertilizer base manure to add, and certainly will waste great amount of manpower, material resources, and fertilizer loss is also comparatively serious, and the profit margin of peasant household's plantation makes the matter worse especially.Therefore, it is relatively reasonable to develop a kind of price, and nutrient slowly-released property is better, and the sustained-controll-release fertiliser that can be fit to the omnidistance needs of Chinese cabbage growth is particularly urgent.
Summary of the invention
The objective of the invention is to adopt long-chain shape high-molecular hydrocarbons, nontoxic, can be degraded by soil bacteria, water-soluble high-molecular material polyvinyl alcohol (PVA) and the reproducible resource material of nature with soil improvement function, widely distributed, cheap and easy to get, the molecular modification space is big, can adopt physics, chemistry, the water-soluble high-molecular compound W-Gum that biological method makes it modification is main coating raw material, dose the properties-correcting agent that impels both mutual coalescent reactions simultaneously, improve the defoamer and the tensio-active agent of mucus tack, suppress nitrification inhibitor and urease inhibitor that nitrogenous fertilizer (urea-base compound fertilizer) discharges, improve the water-holding agent of crop water retention capacity, add the essential carrier trace element of plant-growth (preventing that it is fixing in soil) again, with inorganic mineral powder blend enwrapped granule composite fertilizer, it is simple to prepare a kind of production technique, simultaneously the coated release-controlled compound manure of controlled release npk nutrient.
Film coated control release composite fertilizer special for regetables involved in the present invention comprises granular compound fertilizer and coating, and membrane wrapping thickness is the 3%-7% of granular composite fertilizer gross weight, and the raw material and the weight part ratio that it is characterized in that making the coating feed liquid of coating layer are:
Polyvinyl alcohol (PVA) 5
Conventional corn starch 5
Inorganic mineral powder adopts talcum powder or silica flour or kaolin powder or diatomite in powder 10～20
Properties-correcting agent adopts formaldehyde 2.5
Defoamer adopts tween-80 0.5
Tensio-active agent adopts glycerol 2.5
Water-holding agent adopts acrylic resin water-retaining agent 0.5
The nitrogenous fertilizer inhibitor adopt quinhydrones HQ and Dyhard RU 100 DCD respectively account for half 0.1～0.2
Copper sulphate powder 0.01
Zinc sulphate powder 0.01
Novel carriers material chitosan 0.02
Water 63.76～73.86
Above-mentioned film coated control release composite fertilizer special for regetables method for making involved in the present invention is as follows:
1, carry out the synthetic of coating feed liquid earlier:
A, be that 0.01 copper sulphate powder and weight part ratio are that 0.01 zinc sulphate powder and weight part ratio are 0.02 solid support material chitosan blend with the weight part ratio, add the weight part ratio and be 10 water and stir into trace vector liquid, leave standstill after 24 hours stand-by;
B, weight part ratio each raw material under is for example dropped into homogenizer:
Polyvinyl alcohol 5, conventional corn starch 5, properties-correcting agent formaldehyde 2.5, defoamer soil temperature-80 are 0.5, tensio-active agent glycerol 2.5, water-holding agent acrylic resin water-retaining agent 0.5, respectively account for half nitrogenous fertilizer inhibitor quinhydrones HQ and Dyhard RU 100 DCD0.1～0.2, water 53.76-63.86;
Stirring at room 30min in homogenizer is heated to 85～90 ℃, continues to stir, and stirring velocity 100r/min, gelatinization 30min becomes mucus;
C, trace vector liquid and mucus stirring and evenly mixing, at last in the receiver that the coating feed liquid is transferred to pneumatic pump links to each other;
2, the coating method of compound manure:
A, the compound manure of plain particles shape is sieved with sieve, the fertilizer of choosing same grade wraps up, and the fertilizer of the good same grade of screening is packed into to be had in the granulating disc of heating function, preheating under 50～60 ℃ of conditions, and light fertilizer surface is cutd open in rotation;
B, connection air compressor pump, give compound fertilizer integument with spray gun, coating liquid evenly is sprayed at the fertiliser granulates surface, disk velocity of rotation 15r/min, to spill part by weight with the hot blast branch be 10～20 inorganic mineral powder while spraying binding agent, every 30s spraying fertilizer surface, circulation is 3%～7% of a gross weight up to rete repeatedly.Warm air drying, cooling packing makes coated granule composite fertilizer.
The present invention compares with prior art, has following advantage:
1. production technique of the present invention is simple, and the synthetic coating process that reaches of whole coating liquid is non-chemical industry synthesis technique.Equipment is granulating disc, agitator, air compressor commonly used, spray gun, and the production unit cost is low, the production of can founding the factory separately, the subsequent production operation that also can be used as existing fertilizer plant is implemented.
2. main raw material of the present invention is cheap and easy to get, when reacting to each other, can add different properties-correcting agent and carry out molecular structure alteration, improves the water tolerance and the intensity of mould material, improves the sustained release performance of fertilizer.
The used main material of the present invention be environmental friendliness, can biological degradation, can improve the physico-chemical property of soil after the degraded, can not cause the pollution of soil and water quality, thereby realize human Sustainable development.
4. the trace element in the fertilizer rete of the present invention adopts the form that adds after carrier and its complexing, can prevent the ineffective treatment of trace element in soil effectively, promotes plant materials to trace elements absorbed.
5. the used solid support material of the present invention also belongs to the very high new type natural environment-friendly materials of a kind of agricultural application value, can improve diseases and insect pests resistance, the drought-resistant ability of plant.Be good soil improvement agent and plant-growth regulator, can be used as the carrier of liquid fertilizer simultaneously.
Embodiment
Embodiment 1:
Copper sulphate powder 0.01kg and zinc sulphate powder 0.01kg and solid support material chitosan 0.02kg blend, add water 10kg and stir the formation title complex, leave standstill after 24 hours stand-by.With polyvinyl alcohol 5kg, conventional corn starch 5kg, properties-correcting agent formaldehyde 2.5kg, defoamer soil temperature-80 0.5kg, tensio-active agent glycerol 2.5kg, water-holding agent acrylic resin water-retaining agent 0.5kg, nitrogenous fertilizer inhibitor adopt nitrogenous fertilizer inhibitor quinhydrones HQ and Dyhard RU 100 DCD 0.2kg and the distilled water 53.76kg input homogenizer that respectively accounts for half, stirring at room 30min in homogenizer, be heated to 85～90 ℃, continue to stir, stirring velocity 100r/min, gelatinization 30min.Trace vector liquid and mucus stirring and evenly mixing.At last in the receiver that the coating feed liquid is transferred to pneumatic pump links to each other.Granular compound manure is sieved with sieve, and the fertilizer of choosing same grade wraps up.The fertilizer 100kg of the good same grade of screening packed into to be had in the granulating disc of heating function, preheating under 50～60 ℃ of conditions, and light fertilizer surface is cutd open in rotation.Connect air compressor pump, give composite fertilizer's grain coating with spray gun, coating liquid evenly is sprayed at the fertiliser granulates surface, disk velocity of rotation 15r/min, the elevation angle 50～60 degree spill silica flour 20kg while spray binding agent with the hot blast branch, every 30s spraying fertilizer surface, circulation is 5% of a gross weight up to rete repeatedly.Warm air drying, cooling packing makes coated granule composite fertilizer.
Embodiment 2:
Copper sulphate powder 0.01kg and zinc sulphate powder 0.01kg and solid support material chitosan 0.02kg blend, add water 10kg and stir the formation title complex, leave standstill after 24 hours stand-by.With polyvinyl alcohol 5kg, conventional corn starch 5kg, properties-correcting agent formaldehyde 2.5kg, defoamer soil temperature-80 0.5kg, tensio-active agent glycerol 2.5kg, water-holding agent acrylic resin water-retaining agent 0.5kg, nitrogenous fertilizer inhibitor adopt nitrogenous fertilizer inhibitor quinhydrones HQ and Dyhard RU 100 DCD0.1kg and the distilled water 63.86kg that respectively accounts for half, drop into homogenizer, stirring at room 30min in homogenizer, be heated to 85～90 ℃, continue to stir stirring velocity 100r/min, gelatinization 30min.Trace vector liquid and mucus stirring and evenly mixing.At last in the receiver that the coating feed liquid is transferred to pneumatic pump links to each other.Granular compound manure is sieved with sieve, and the fertilizer of choosing same grade wraps up.The fertilizer 100kg of the good same grade of screening packed into to be had in the granulating disc of heating function, preheating under 50～60 ℃ of conditions, and light fertilizer surface is cutd open in rotation.Connect air compressor pump, give composite fertilizer's grain coating with spray gun, coating liquid evenly is sprayed at the fertiliser granulates surface, disk velocity of rotation 15r/min, the elevation angle 50～60 degree spill talcum powder 10kg while spray binding agent with the hot blast branch, every 30s spraying fertilizer surface, circulation is 5% of a gross weight up to rete repeatedly.Warm air drying, cooling packing makes coated granule composite fertilizer.
Embodiment 3:
Copper sulphate powder 0.01kg and zinc sulphate powder 0.01kg and solid support material chitosan 0.02kg blend, add water 10kg and stir the formation title complex, leave standstill after 24 hours stand-by.With polyvinyl alcohol 5kg, conventional corn starch 5kg, properties-correcting agent formaldehyde 2.5kg, defoamer soil temperature-80 0.5kg, tensio-active agent glycerol 2.5kg, water-holding agent acrylic resin water-retaining agent 0.5kg, nitrogenous fertilizer inhibitor adopt nitrogenous fertilizer inhibitor quinhydrones HQ and Dyhard RU 100 DCD0.2kg and the distillation 53.76kg that respectively accounts for half, drop into homogenizer, stirring at room 30min in homogenizer, be heated to 85～90 ℃, continue to stir stirring velocity 100r/min, gelatinization 30min.Trace vector liquid and mucus stirring and evenly mixing.At last in the receiver that the coating feed liquid is transferred to pneumatic pump links to each other.Granular compound manure is sieved with sieve, and the fertilizer of choosing same grade wraps up.The fertilizer 100kg of the good same grade of screening packed into to be had in the granulating disc of heating function, preheating under 50～60 ℃ of conditions, and light fertilizer surface is cutd open in rotation.Connect air compressor pump, give composite fertilizer's grain coating with spray gun, coating liquid evenly is sprayed at the fertiliser granulates surface, disk velocity of rotation 15r/min, the elevation angle 50～60 degree spill kaolin powder or diatomite in powder 20kg while spray binding agent with the hot blast branch, every 30s spraying fertilizer surface, circulation is 5% of a gross weight up to rete repeatedly.Warm air drying, the cold-zone packing makes coated granule composite fertilizer.
Result of use:
1, carry out potted plant experiment in the Agricultural University Of Shenyang solarium, soil adopts the meadow soil of low nutrition fertility.Under the condition that waits nutrient and equal proportion, adopt the processing mode of coating and non-coating, to experimentizing for studying the thing Chinese cabbage.The npk nutrient ratio is 16: 10: 14, adopts single-dose application to exempt to topdress, and compares with the conventional composite fertilizer of equal proportion and equivalent, use during processing growth whole of coated fertilizer, growing way is more prosperous, and fertile phenomenon does not appear taking off in the growth later stage, and fertilizer efficiency reaches 80～100 days.And the plant that conventional composite fertilizer handles rising trend in early stage is prosperous excessively, and yellow appears in the later stage lower blade, takes off obviously fertile.Output is analyzed, data processing, coating is than not coating processing utilization rate of nitrogen fertilizer raising 9.7%, and phosphate fertilizer utilization efficiency improves 5.4%, and potassium utilization rate improves 5.2%, and output obviously improves.
Claims (5)
1, a kind of film coated control release composite fertilizer special for regetables comprises granular compound fertilizer and coating, and membrane wrapping thickness is the 3%-7% of granular composite fertilizer gross weight, and the raw material and the weight part ratio that it is characterized in that making the coating feed liquid of coating layer are:
Polyvinyl alcohol (PVA) 5
Conventional corn starch 5
Talcum powder or silica flour or kaolin powder or diatomite in powder 10～20
Formaldehyde 2.5
Tween-80 0.5
Glycerol 2.5
Acrylic resin water-retaining agent 0.5
Quinhydrones HQ and Dyhard RU 100 DCD respectively account for half 0.1～0.2
Copper sulphate powder 0.01
Zinc sulphate powder 0.01
Chitosan 0.02
Water 63.76～73.86.
2, film coated control release composite fertilizer special for regetables according to claim 1 is characterized in that: PVAC polyvinylalcohol molecular weight model is 1300-1800.
3, film coated control release composite fertilizer special for regetables according to claim 1 is characterized in that: the grade of W-Gum is 30～40 purpose conventional corn starch.
4, film coated control release composite fertilizer special for regetables according to claim 1 is characterized in that: novel carriers material chitosan and micro-copper sulfate, zinc sulfate use after forming title complex.
5, a kind of method for making of film coated control release composite fertilizer special for regetables according to claim 1 is characterized in that:
(1), carry out the synthetic of coating feed liquid earlier:
A, be that 0.01 copper sulphate powder and weight part ratio are that 0.01 zinc sulphate powder and weight part ratio are 0.02 solid support material chitosan blend with the weight part ratio, add weight ratio part and be 10 water and stir into trace vector liquid, leave standstill after 24 hours stand-by;
B, weight part ratio each raw material under is for example dropped into homogenizer:
Polyvinyl alcohol 5, conventional corn starch 5, properties-correcting agent formaldehyde 2.5, defoamer soil temperature-80 are 0.5, tensio-active agent glycerol 2.5, water-holding agent acrylic resin water-retaining agent 0.5, respectively account for half nitrogenous fertilizer inhibitor quinhydrones HQ and Dyhard RU 100 DCD0.1～0.2, water 53.76 63.86;
Stirring at room 30min in homogenizer is heated to 85～90 ℃, continues to stir, and stirring velocity 100r/min, gelatinization 30min becomes mucus;
C, trace vector liquid and mucus stirring and evenly mixing, at last in the receiver that the coating feed liquid is transferred to pneumatic pump links to each other;
(2), the coating of compound manure:
A, the compound manure of plain particles shape is sieved with sieve, the fertilizer of the good same grade of screening is packed into to be had in the granulating disc of heating function, preheating under 50～60 ℃ of conditions, and light fertilizer surface is cutd open in rotation;
B, give compound fertilizer integument with spray gun, coating liquid evenly is sprayed at the fertiliser granulates surface, disk velocity of rotation 15r/min, the elevation angle 50～60 degree, to spill the weight part ratio with the hot blast branch be 10～20 inorganic mineral powder while spraying binding agent, every 30s spraying fertilizer surface, circulation is 3%～7% of a gross weight up to rete repeatedly.Warm air drying, the cold-zone packing makes coated granule composite fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101558561A CN100465136C (en) | 2006-12-31 | 2006-12-31 | A special compound fertilizer for coated controlled-release vegetables and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101558561A CN100465136C (en) | 2006-12-31 | 2006-12-31 | A special compound fertilizer for coated controlled-release vegetables and its preparation method |
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| CN100999427A true CN100999427A (en) | 2007-07-18 |
| CN100465136C CN100465136C (en) | 2009-03-04 |
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| CNB2006101558561A Expired - Fee Related CN100465136C (en) | 2006-12-31 | 2006-12-31 | A special compound fertilizer for coated controlled-release vegetables and its preparation method |
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Cited By (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215202B (en) * | 2007-12-27 | 2010-06-02 | 山东大学 | Controlled Release Fertilizer for Leafy Vegetables |
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2006
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