CN103936499B - A kind of seed manure that can be used for is with the fertilizer broadcast and production method thereof - Google Patents
A kind of seed manure that can be used for is with the fertilizer broadcast and production method thereof Download PDFInfo
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Abstract
The present invention discloses a kind of seed manure that can be used for the fertilizer broadcasting technology, it is made up by weight of following raw material: 20��30 parts, nitrogenous source, 15��20 parts, phosphorus source, 15��20 parts, potassium source, humic acids 5��10 parts, moderate-element calcium, magnesium, 8��12 parts, sulphur fertilizer, 1��5 part, chelated microelements fertilizer, promoter 0.5��1 part, physiologically active substance 1��5 part, anti-burn seedlings material 5��15 parts; The invention also discloses the preparation method of this fertilizer, utilize phosphoric acid by wet process spray granulating technique and/or Traditional Method features of DAP production technique, mix microcapsule slow release method and carry out fertiliser production. The present invention realizes fertilizer and directly contacts with crop seed or root system, avoid fertilizer and concentrate the phenomenon using " burn kind ", " burn seedlings " that cause, it is achieved Mechanization sowing applies fertilizer, it is to increase fertilising efficiency and utilization rate of fertilizer.
Description
Technical field
The present invention relates to a kind of seed manure that can be used for the fertilizer broadcast and production method thereof, the production method being specifically related in field of fertilizer production full trophic function type fertilizer.
Background technology
2011, under the technical director at public goods center, the whole nation, the principle combined according to agricultural machinery agronomy, country starts slow-release or control-release fertilizer " seed manure is with broadcasting " technology, along with China's rural and agricultural reform is goed deep into comprehensively, soil circulation is accelerated, the novel agricultural management body such as large plantation family, home farm, farmer specialized cooperative society progressively increase, mechanized application is the prior development direction applied fertilizers scientifically from now on, is also novel occupation vast technology precision scientific farming urgently needed of peasant.
In actual production, seed manure is that Relatively centralized used by fertilizer with the inevitable outcome broadcast, and therefore in order to avoid " burn and plant ", " burn seedlings " phenomenon, will ensure seed, fertilizer interval more than 5cm; Meanwhile, seed manure is fastidious especially with broadcasting fertilizer, can not select urea-base compound fertilizer, because of the biuret that urea-base compound fertilizer contains, be unfavorable for seed germination, it is easy to cause burn seedlings phenomenon. Slow-release or control-release fertilizer can be selected, according to the regulation of International Standards Organization (ISO), slow release fertilizer be defined as its fertilizer nutrient a kind of with compound form or with certain physical condition exist and can to plant availability extend fertilizer; Country's proposed standard (GB/T23348-2009) regulation, slow release fertilizer is defined through the chemically composited of nutrient or physical action so that it is to the chemical fertilizer of available nutrients slow releasing along with the time of crop. But owing to the research of domestic slow-release fertilizer is started late, and be difficult to accomplish to be consistent with crop nutrition content demand rule based on current domestic slow-release fertilizer nutrient release curve, the reason such as slow-release fertilizer is expensive and coated fertilizer degradation speed is slow, make seed manure in promotion and implementation process, a series of obstructions occur with broadcasting technology, " burn and plant ", " burn seedlings " phenomenon have even occurred.
It is domestic at present that about seed manure, with broadcasting fertilizer technology research, what carry out is not also very deep. A kind of rhizosphere friendly fertilizer and the manufacture method (ZL application number 200610002160.5) thereof of Science and Technology Ltd.'s exploitation is such as flown by Beijing Hai Yi, fertilizer and/or microsolubility nitrogenous compound slow release fertilizer and water soluble potassic fertilizer, promoter, the felted slow-release or control-release fertilizer that lures root agent, make containing trace element fertilizer and binding agent are released in the control selecting divalent metal ammonium phosphate sylvite to wrap up, nutritive substance belongs to " ball mended greatly by ten perfume (or spice) " series comprehensively, but nutrient can be caused to waste greatly in producing and promoting, being mainly used in the nursery stock crop such as fruit tree, oil palm tree, slow-release period is longer. The a kind of of Xi Gu bio tech ltd, Anhui exploitation utilizes seed manure with broadcasting the method (ZL application number 201110376130.1) that technology root executes nano selenium fertilizer, require that nano selenium fertilizer mixes with base manure or dry soil particle, seed and fertilizer together apply in arable layer after mixing, make seed upper, fertilizer under, between both horizontal throw 0��15cm, vertical range is at 5��10cm, but seed does not directly contact with fertilizer, seeder implement is had certain requirement.
Summary of the invention
It is an object of the invention to provide a kind of seed manure that is applicable to the fertilizer broadcasting technology, fertilizer can be realized directly contact with crop seed or root system, the situation of expensive slow-release fertilizer is used under solving current " seed manure is with broadcasting " pattern, avoid concentrating because of fertilizer using and " burn and plant ", " burn seedlings " phenomenon occurring, improve fertilising precisely degree, strengthen crop root vigor, promote root growth, realize the supporting of " good fertilizer+good method ", break traditions fertilization mode, realize Mechanization sowing fertilising, greatly improve fertilising efficiency and utilization rate of fertilizer.
For achieving the above object, the present invention adopts following technical scheme:
A kind of seed manure that can be used for is with the fertilizer broadcast, it is made up of following raw material: 20��30 parts, nitrogenous source, 15��20 parts, phosphorus source, 15��20 parts, potassium source, humic acids 5��10 parts, moderate-element calcium, magnesium, 8��12 parts, sulphur fertilizer, 1��5 part, chelated microelements fertilizer, promoter 0.5��1 part, physiologically active substance 1��5 part, anti-burn seedlings material 5��15 parts;
Wherein, described nitrogenous source is selected from urea and/or ammoniacal liquor, and phosphorus source is selected from phosphoric acid, adds with the form of phosphoric acid solution, and its mass concentration is 40��43%, and potassium source is selected from Repone K or potassium sulfate; Described moderate-element calcium, magnesium, sulphur fertilizer are selected from magnesium sulfate and calcium chloride; Described chelated microelements fertilizer is the inner complex that one or more and the humic acid in zinc, boron, manganese, iron, copper, molybdenum, selenium is formed, preparation method is by the soluble salt of above-mentioned trace element, such as zinc sulfate, cupric chloride etc., mix with humic acid and get final product, be routine techniques in prior art;
Described promoter is Nafusaku; Physiologically active substance is yellow humic acid;
In described humic acids, wherein free humic acid accounts for the 50��60% of humic acids total amount;
Described anti-burn seedlings material be by polyvinyl alcohol, sodium nitrophenolate, urease inhibitor any two kinds in mass ratio 1:1 mix.
It is a further object of the present invention to provide a kind of seed manure that can be used for the fertilizer production method broadcast, utilize phosphoric acid by wet process spray granulating technique and/or Traditional Method features of DAP production technique, mix microcapsule slow release method and carry out fertiliser production, comprise the following steps:
(1) slurrying is neutralized: get 15��20 parts of phosphoric acid, react with 20��30 parts of urea and/or ammoniacal liquor, make slip, slip adds potassium source 15-20 part, humic acids 5��10 parts, anti-burn seedlings material 5��15 parts, moderate-element calcium, magnesium, 8��12 parts, sulphur fertilizer by proportioning raw materials, 1��5 part, chelated microelements fertilizer, promoter 0.5��1 part, physiologically active substance 1��5 part, mixes;
(2) drum granulating: the slip that step (1) is obtained through pump delivery to granulator granulation internal spraying to returning charge material curtain on bonding, coating granulating;
(3) microcapsular envelopes: being dried by the particle of step (2), microcapsular envelopes, to obtain final product.
In step (1), described phosphoric acid adds as a solution, and mass concentration is 40��43%.
In step (1), the preparation method of phosphoric acid is:
(1) processing of phosphorus ore raw material: enter to be ground to ore pulp in ball mill through crusher in crushing is laggard by Rock Phosphate (72Min BPL);
(2) phosphoric acid production: ore pulp obtained for step (1) is delivered to extraction tank and mass concentration be 98% the vitriol oil according to weight ratio be, ore pulp: sulfuric acid=1.4��1.5:1 reaction, obtained phosphoric acid material pulp, it is 20��22% dilute phosphoric acids that phosphoric acid material pulp obtains mass concentration through vacuum filtration, after dilute phosphoric acid is concentrated, obtain the strong phosphoric acid that mass concentration is 40��43%.
The useful effect of the present invention is:
(1) the present invention can be used for seed manure with the fertilizer broadcast, really achieve seed, fertilizer mixing use, need not be separated by a distance when sowing, owing to adding appropriate anti-burn seedlings material in fertilizer, can effectively regulate and control rhizosphere salinity index, controlled in very low scope, granulation process adopts microcapsule slow release method, nutrients release is slow, both mutually mix and guarantee that salinity index is low, and nutrient releasing speed is slow, can not cause " burn and plant ", " burn seedlings " phenomenon, saving of work and time and raising utilization rate of fertilizer, have obvious economic benefit and social benefit.
(2) the present invention can be used for seed manure with the fertilizer broadcast, really achieve macroelement, moderate-element, trace element and crop absorbable amino acid, effective combination of the organic molecule active substances such as xanthohumic acid, it is primarily of three kinds of macroelement, three kinds of moderate-elements, part trace element etc. must form by nutritive element, and add humic acids, promoter, physiologically active substance, can realize a large amount of, middle amount, the combination of trace element, realize effective combination of organic and inorganic nutrient, achieve again the short root (promoter) of crop, take root (yellow humic acid), long root (macroelement phosphorus, trace element zinc), protect root (anti-burn seedlings material), do not hinder root (microcapsule slow release method), applied once meets crop demand in whole vegetative period, the nutrient that collocation mode meets high crop yield is theoretical, in the fertilizer of the present invention, free humic acid content reaches more than 3%, and fertilizer nutrient utilization significantly improves.
(3) the present invention can be used for seed manure with the fertilizer broadcast, its preparation technology is without the need to reequiping existing production equipment, and domestic most of production device for compound fertilizer all can be produced, and also can produce on diammonium phosphate device, it may also be useful to scope is wide.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1
It is that the Rock Phosphate (72Min BPL) of 1750 kilograms enters to be ground to ore pulp in ball mill through crusher in crushing is laggard by quality, ore pulp deliver to extraction tank and 1250 kilograms of mass concentrations be 98% the obtained phosphoric acid material pulp of strong sulfuric acid response, it is 22% dilute phosphoric acid that phosphoric acid material pulp obtains mass concentration through vacuum filtration, dilute phosphoric acid, after vacuumizing and concentrating, obtains the strong phosphoric acid that mass concentration reaches 43%. strong phosphoric acid, after material method sedimentation, is got the strong phosphoric acid 200 kilograms of supernatant, is delivered to the washing tail gas liquid seal trough of finished product production plant with impeller pump, and in washings sealing groove, strong phosphoric acid is through circulation cleaning, reclaims the ammonia pre-neutralization in tail gas. washings is delivered to neutralization reaction groove through impeller pump, slip is made with 300 kg urea reactions in neutralizing well, slip adds 150 kilograms, Repone K, humic acids 50 kilograms, wherein free humic acid accounts for the 50% of humic acids total amount, 60 kilograms, magnesium sulfate and 40 kilograms, calcium chloride, by zinc, boron, manganese, iron, copper, molybdenum, 30 kilograms, the chelated microelements fertilizer that selenium and amino acids formed inner complex balanced mix form, Nafusaku 5 kilograms, yellow humic acid 10 kilograms, anti-burn seedlings material 50 kilograms, wherein, anti-burn seedlings material is sodium nitrophenolate and urease inhibitor is 1:1 mixing in mass ratio, mix, slip through pump delivery to granulator granulation internal spraying to returning charge material curtain on bonding, coating granulating, after granulating after drying machine is dried, again by the method for patent name " preparation method of a kind of microcapsule organic fertilizer " (number of patent application is 201110310813.7) embodiment 1, dried fertiliser granulates is mixed with sodium alginate aqueous solution, the median size formed by fertiliser granulates is made to be scattered in sodium alginate aqueous solution at the emulsified particle of below 600nm, calcium chloride water and polyoxyethylene oleic acid ester is added again in sodium alginate aqueous solution, emulsified particle is by bag in moment, can obtain that particle diameter is less and the microcapsule of shape spherical in shape, obtain the microcapsule that emulsified particle is obtained by bag in calcium alginate gel, i.e. obtained microcapsule fertilizer, and then it is packaged into salable product.
Embodiment 2
It is that the Rock Phosphate (72Min BPL) of 1725 kilograms enters to be ground to ore pulp in ball mill through crusher in crushing is laggard by quality, ore pulp deliver to extraction tank and 1200 kilograms of mass concentrations be 98% the obtained phosphoric acid material pulp of strong sulfuric acid response, it is 21% dilute phosphoric acid that phosphoric acid material pulp obtains mass concentration through vacuum filtration, dilute phosphoric acid, after vacuumizing and concentrating, obtains the strong phosphoric acid that mass concentration reaches 41%. strong phosphoric acid, after material method sedimentation, is got the strong phosphoric acid 150 kilograms of supernatant, is delivered to the washing tail gas liquid seal trough of finished product production plant with impeller pump, and in washings sealing groove, strong phosphoric acid is through circulation cleaning, reclaims the ammonia pre-neutralization in tail gas. washings is delivered to neutralization reaction groove through impeller pump, slip is made with 250 kilograms of ammoniacal liquor reactions in neutralizing well, slip adds potassium sulfate 200 kilograms, humic acids double centner, wherein free humic acid accounts for the 50% of humic acids total amount, 50 kilograms, magnesium sulfate and 30 kilograms, calcium chloride, by zinc, boron, manganese, iron, copper, molybdenum, 50 kilograms, the chelated microelements fertilizer that selenium and amino acids formed inner complex balanced mix form, Nafusaku 8 kilograms, yellow humic acid 30 kilograms, anti-burn seedlings material double centner, wherein, anti-burn seedlings material is polyvinyl alcohol 17-99 type and urease inhibitor is 1:1 mixing in mass ratio, mix, slip through pump delivery to granulator granulation internal spraying to returning charge material curtain on bonding, coating granulating, after granulating after drying machine is dried, microcapsular envelopes operation is carried out again by the method for patent name " preparation method of a kind of microcapsule organic fertilizer " (number of patent application is 201110310813.7) embodiment 1, and then it is packaged into salable product.
Embodiment 3
It is that the Rock Phosphate (72Min BPL) of 1700 kilograms enters to be ground to ore pulp in ball mill through crusher in crushing is laggard by quality, ore pulp deliver to extraction tank and 1200 kilograms of mass concentrations be 98% the obtained phosphoric acid material pulp of strong sulfuric acid response, it is 20% dilute phosphoric acid that phosphoric acid material pulp obtains mass concentration through vacuum filtration, dilute phosphoric acid, after vacuumizing and concentrating, obtains the strong phosphoric acid that mass concentration reaches 40%. strong phosphoric acid, after material method sedimentation, is got the strong phosphoric acid 180 kilograms of supernatant, is delivered to the washing tail gas liquid seal trough of finished product production plant with impeller pump, and in washings sealing groove, strong phosphoric acid is through circulation cleaning, reclaims the ammonia pre-neutralization in tail gas. washings is delivered to neutralization reaction groove through impeller pump, slip is made with 200 kilograms of ammoniacal liquor reactions in neutralizing well, slip adds 180 kilograms, Repone K, humic acids 80 kilograms, wherein free humic acid accounts for the 50% of humic acids total amount, 80 kilograms, magnesium sulfate and 40 kilograms, calcium chloride, by zinc, boron, manganese, iron, copper, molybdenum, 10 kilograms, the chelated microelements fertilizer that selenium and amino acids formed inner complex balanced mix form, Nafusaku 10 kilograms, yellow humic acid 10 kilograms, anti-burn seedlings material 150 kilograms, wherein, anti-burn seedlings material is polyvinyl alcohol 17-99 type and urease inhibitor is 1:1 mixing in mass ratio, mix, slip through pump delivery to granulator granulation internal spraying to returning charge material curtain on bonding, coating granulating, after granulating after drying machine is dried, microcapsular envelopes operation is carried out again by the method for patent name " preparation method of a kind of microcapsule organic fertilizer " (number of patent application is 201110310813.7) embodiment 1, and then it is packaged into salable product.
Embodiment 4
At Hebei Qu Zhou China Agricultural University base plot experiment wheat seeding rate, experimental plot physical features is smooth, soil fertility is even, it is good that water waters condition, by preferably wheat seed before sowing, rhizosphere fertilizer prepared by embodiment 2 is according to 1:1 (weight ratio) and preferably wheat seed, load seed manure planter after the common fertilizer of nutrient formula identical with embodiment 2 is fully mixed even according to 1:1 (weight ratio) and carry out seed manure with broadcasting, seed, the contact sowing of fertilizer even blend, blank is set simultaneously, wheat seeding rate is calculated after 15 days, the fertile seedling rate 97% of rhizosphere, common fertile seedling rate 85%, blank seedling rate 92%.
Embodiment 5
In the impact of Yang Gu experimental plot plot experiment rate of fertilizer application for corn emergence rate, experimental plot physical features is smooth, soil fertility is even, it is good that water waters condition, by preferably 200 corn seeds before sowing, fertilizer prepared by the embodiment of the present invention 3 is according to 1:1 (weight ratio) and preferred 200 corn seeds, load seed manure planter after the common fertilizer of nutrient formula identical with embodiment 3 is fully mixed even according to 1:1 (weight ratio) and carry out seed manure with broadcasting, seed, the contact sowing of fertilizer even blend, 200 corn seed blanks are set simultaneously, corn emergence rate is calculated after 15 days, the fertile seedling rate 98% of rhizosphere, common fertile seedling rate 79%, blank seedling rate 91%.
Embodiment 6
The effect of fertilizer simultaneous test that in enterprise laboratory prepared by the embodiment of the present invention 3, trial crops is Brassica rapa L, and planting patterns is that seed is used together with fertilizer blending, respectively according to fertilizer: seed (weight ratio) 1:1,3:1.
Table 1 effect of fertilizer comparative test result
Being shown by embodiment 4, embodiment 5: the fertilizer that the present invention produces is applicable to be broadcast in seed manure is same, and by showing not burn kind, not burn seedlings with common fertilizer test contrast, accomplished what common fertilizer can not be accomplished, this is advantage innovative point; Embodiment 6 shows from the experimental data of the aspects such as the number of blade, plant height, root length, and fertilizer of the present invention can promote plant growth, compares other fertilizer well developed root systems, growing way obvious difference.
Although above-mentioned, the specific embodiment of the present invention is described; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of the technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (7)
1. one kind can be used for seed manure with the fertilizer broadcast, it is characterized in that, it is made up of following raw material: 20��30 parts, nitrogenous source, 15��20 parts, phosphorus source, 15��20 parts, potassium source, humic acids 5��10 parts, moderate-element calcium, magnesium, 8��12 parts, sulphur fertilizer, 1��5 part, chelated microelements fertilizer, promoter 0.5��1 part, physiologically active substance 1��5 part, anti-burn seedlings material 5��15 parts;
Wherein, described nitrogenous source is selected from urea and/or ammoniacal liquor, and phosphorus source is selected from phosphoric acid, and potassium source is selected from Repone K or potassium sulfate; Described moderate-element calcium, magnesium, sulphur fertilizer are selected from magnesium sulfate and calcium chloride; Described chelated microelements fertilizer is the inner complex that one or more and the humic acids in zinc, boron, manganese, iron, copper, molybdenum, selenium is formed; Described promoter is Nafusaku; Physiologically active substance is yellow humic acid; Described anti-burn seedlings material be by polyvinyl alcohol, sodium nitrophenolate, urease inhibitor any two kinds in mass ratio 1:1 mix;
In described humic acids, free humic acid accounts for the 50-60% of humic acids total amount;
It is prepared from by following method:
(1) slurrying is neutralized: get 15��20 parts of phosphoric acid, react with 20��30 parts of urea and/or ammoniacal liquor, make slip, slip adds potassium source 15-20 part, humic acids 5��10 parts, anti-burn seedlings material 5��15 parts, moderate-element calcium, magnesium, 8��12 parts, sulphur fertilizer by proportioning raw materials, 1��5 part, chelated microelements fertilizer, promoter 0.5��1 part, physiologically active substance 1��5 part, mixes;
(2) drum granulating: the slip that step (1) is obtained through pump delivery to granulator granulation internal spraying to returning charge material curtain on bonding, coating granulating;
(3) microcapsular envelopes: being dried by the particle of step (2), microcapsular envelopes, to obtain final product.
2. as claimed in claim 1 a kind of seed manure that can be used for the fertilizer broadcast, it is characterized in that, it is made up of following raw material: 30 parts, nitrogenous source, 20 parts, phosphorus source, 15 parts, potassium source, humic acids 5 parts, moderate-element calcium, magnesium, 10 parts, sulphur fertilizer, 3 parts, chelated microelements fertilizer, promoter 0.5 part, physiologically active substance 1 part, anti-burn seedlings material 5 parts;
Wherein, described nitrogenous source is selected from urea, and phosphorus source is selected from phosphoric acid solution, and mass concentration is 43%, and potassium source is selected from Repone K; Described moderate-element calcium, magnesium, sulphur fertilizer are selected from magnesium sulfate and calcium chloride; Described chelated microelements fertilizer is the mass mixings such as the inner complex that formed with humic acids by zinc, boron, manganese, iron, copper, molybdenum, selenium and becomes; Described promoter is Nafusaku; Physiologically active substance is yellow humic acid; Described anti-burn seedlings material be by sodium nitrophenolate and urease inhibitor in mass ratio 1:1 mix.
3. as claimed in claim 1 a kind of seed manure that can be used for the fertilizer broadcast, it is characterized in that, it is made up of following raw material: 25 parts, nitrogenous source, 15 parts, phosphorus source, 20 parts, potassium source, humic acids 10 parts, moderate-element calcium, magnesium, 8 parts, sulphur fertilizer, 5 parts, chelated microelements fertilizer, promoter 0.8 part, physiologically active substance 3 parts, anti-burn seedlings material 10 parts;
Wherein, described nitrogenous source is selected from ammoniacal liquor, and phosphorus source is selected from phosphoric acid solution, and mass concentration is 41%, and potassium source is selected from potassium sulfate; Described moderate-element calcium, magnesium, sulphur fertilizer are selected from magnesium sulfate and calcium chloride; Described chelated microelements fertilizer is the mass mixings such as the inner complex that formed with humic acids by zinc, boron, manganese, iron, copper, molybdenum, selenium and becomes; Described promoter is Nafusaku; Physiologically active substance is yellow humic acid; Described anti-burn seedlings material be by polyvinyl alcohol and urease inhibitor in mass ratio 1:1 mix.
4. as claimed in claim 1 a kind of seed manure that can be used for the fertilizer broadcast, it is characterized in that, it is made up of following raw material: 20 parts, nitrogenous source, 18 parts, phosphorus source, 18 parts, potassium source, humic acids 8 parts, moderate-element calcium, magnesium, 12 parts, sulphur fertilizer, 1 part, chelated microelements fertilizer, promoter 1 part, physiologically active substance 1 part, anti-burn seedlings material 15 parts;
Wherein, described nitrogenous source is selected from ammoniacal liquor, and phosphorus source is selected from phosphoric acid solution, and mass concentration is 40%, and potassium source is selected from Repone K; Described moderate-element calcium, magnesium, sulphur fertilizer are selected from magnesium sulfate and calcium chloride; Described chelated microelements fertilizer is the mass mixings such as the inner complex that formed with humic acids by zinc, boron, manganese, iron, copper, molybdenum, selenium and becomes; Described promoter is Nafusaku; Physiologically active substance is yellow humic acid; Described anti-burn seedlings material be by polyvinyl alcohol and urease inhibitor in mass ratio 1:1 mix.
5. the preparation method that can be used for the same fertilizer broadcast of seed manure according to claim 1, it is characterised in that, comprise the following steps:
(1) slurrying is neutralized: get 15��20 parts of phosphoric acid, react with 20��30 parts of urea and/or ammoniacal liquor, make slip, slip adds potassium source 15-20 part, humic acids 5��10 parts, anti-burn seedlings material 5��15 parts, moderate-element calcium, magnesium, 8��12 parts, sulphur fertilizer by proportioning raw materials, 1��5 part, chelated microelements fertilizer, promoter 0.5��1 part, physiologically active substance 1��5 part, mixes;
(2) drum granulating: the slip that step (1) is obtained through pump delivery to granulator granulation internal spraying to returning charge material curtain on bonding, coating granulating;
(3) microcapsular envelopes: being dried by the particle of step (2), microcapsular envelopes, to obtain final product.
6. can be used for the preparation method of seed manure with the fertilizer broadcast as claimed in claim 5, it is characterised in that, in step (1), described phosphoric acid adds as a solution, and mass concentration is 40��43%.
7. can be used for the preparation method of seed manure with the fertilizer broadcast as claimed in claim 5, it is characterised in that, in step (1), the preparation method of phosphoric acid is:
(1) processing of phosphorus ore raw material: enter to be ground to ore pulp in ball mill through crusher in crushing is laggard by Rock Phosphate (72Min BPL);
(2) phosphoric acid production: ore pulp obtained for step (1) is delivered to extraction tank and mass concentration be 98% the vitriol oil according to weight ratio be, ore pulp: sulfuric acid=1.4��1.5:1 reaction, obtained phosphoric acid material pulp, it is 20��22% dilute phosphoric acids that phosphoric acid material pulp obtains mass concentration through vacuum filtration, after dilute phosphoric acid is concentrated, obtain the strong phosphoric acid that mass concentration is 40��43%.
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| CN104876721A (en) * | 2015-05-19 | 2015-09-02 | 潍坊友容实业有限公司 | High-nitrogen long-acting slow-release fertilizer for saline-alkali soil and application thereof in Hibiscus syriacus planting |
| CN105669297A (en) * | 2015-12-30 | 2016-06-15 | 湖南泰谷生物科技股份有限公司 | Humic acid-containing complete-element water soluble fertilizer, and preparation method and application thereof |
| CN106116784A (en) * | 2016-06-27 | 2016-11-16 | 陈启芬 | A kind of agricultural compound fertilizer |
| CN106748561B (en) * | 2017-03-16 | 2018-03-30 | 湖北鄂中生态工程股份有限公司 | A kind of wheat tillering fertilizer and its preparation method and application |
| CN106977337A (en) * | 2017-06-05 | 2017-07-25 | 陈芳 | A kind of strengthening root fertilizer of taking root for adding root-inducing powder organic matter |
| CN108558533A (en) * | 2018-06-13 | 2018-09-21 | 贵阳开磷化肥有限公司 | A kind of alkaline land improving special complex fertilizer and preparation method thereof |
| CN109928850A (en) * | 2019-04-02 | 2019-06-25 | 云南云天化以化磷业研究技术有限公司 | A kind of particle compound fertilizer and preparation method thereof of the phosphorus containing polymerization |
| CN113135790A (en) * | 2021-04-12 | 2021-07-20 | 宁波大学 | Storage type sustained and controlled release fish protein amino acid composite water soluble fertilizer and preparation method thereof |
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