CN104447010A - Humic acid type functional blended fertilizer and preparation method thereof - Google Patents

Humic acid type functional blended fertilizer and preparation method thereof Download PDF

Info

Publication number
CN104447010A
CN104447010A CN201410739755.3A CN201410739755A CN104447010A CN 104447010 A CN104447010 A CN 104447010A CN 201410739755 A CN201410739755 A CN 201410739755A CN 104447010 A CN104447010 A CN 104447010A
Authority
CN
China
Prior art keywords
fertilizer
powdery
vitamin
chloride
potash fertilizer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410739755.3A
Other languages
Chinese (zh)
Other versions
CN104447010B (en
Inventor
王意强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHIJIAZHUANG ZHONGJI FERTILIZER Co Ltd
Original Assignee
SHIJIAZHUANG ZHONGJI FERTILIZER Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHIJIAZHUANG ZHONGJI FERTILIZER Co Ltd filed Critical SHIJIAZHUANG ZHONGJI FERTILIZER Co Ltd
Priority to CN201410739755.3A priority Critical patent/CN104447010B/en
Publication of CN104447010A publication Critical patent/CN104447010A/en
Application granted granted Critical
Publication of CN104447010B publication Critical patent/CN104447010B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G5/00Fertilisers characterised by their form
    • C05G5/30Layered or coated, e.g. dust-preventing coatings
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B7/00Fertilisers based essentially on alkali or ammonium orthophosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C3/00Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C9/00Fertilisers containing urea or urea compounds
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/90Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil

Abstract

The invention discloses a humic acid type functional blended fertilizer and a preparation method thereof, and relates to the technical field of blended fertilizers. The humic acid type functional blended fertilizer comprises nitrogen phosphorus and potassium, humic acid, attapulgite powder, a coating film, a granulation material, nitrogen fertilizer film coating liquid, nitrogen fertilizer film coating powder, phosphorus fertilizer film coating liquid, potassium fertilizer granulation liquid and potassium fertilizer granulation powder, wherein the nitrogen fertilizer film coating liquid comprises animal amino acids, urea, zinc sulfate, manganese sulfate, boric acid, sodium molybdate, compound sodium nitrophenolate, citric acid, ammonium citrate, magnesium sulfate and the balance of water; the nitrogen fertilizer film coating powder comprises vitamin B1, vitamin B6, vitamin B12, sodium selenite, calcium pantothenate, p-amino toluic acid, modified starch and cobalt chloride; the phosphorus fertilizer film coating liquid comprises animal amino acids, urea, zinc chloride, manganese chloride, boric acid, magnesium chloride and the balance of water; the potassium fertilizer granulation liquid comprises animal amino acids, urea, ferrous chloride, zinc chloride, manganese chloride, boric acid, ammonium citrate, compound sodium nitrophenolate, magnesium chloride and the balance of water; and the potassium fertilizer granulation powder comprises vitamin B1, vitamin B6, vitamin B12, calcium pantothenate and EDTA-2Na. The fertilizer has high utilization rate and the yield of crops is increased.

Description

Functional bulk blended fertilizer of humic acid type and preparation method thereof
Technical field
The present invention relates to Technology for Bulk Blending Fertilizer field.
Background technology
Now bulk blended fertilizer is commercially main mainly with coventional type, and with granular urea, granulated phosphate fertilizer, granular potash fertilizer, proportioning forms by a certain percentage, in the process of processing, can not add some trace elements, its effect just coventional type, basic non-functional.If add the particle that trace element is also essentially trace element extruding, have certain functional, but result of use is not high, wastes more serious.
Multi-Functional Fertilizers is called multifunctional fertilizers again, one of the important research of 21 century new-type fertilizer, developing direction, be the fertilizer that crop alimentary is combined with other factors limiting high crop yield, can utilization rate of fertilizer be improved, improve unit fertilizer to the efficiency of increasing crop yield.The research of multifunctional fertilizers and production meet the technological requirement of ecological fertilizer, and its utilisation technology belongs to the advanced technology of the multiple comprehensive villages and small towns information sharing section intersections such as agronomy, soil science, information science, chemistry being refined.
Summary of the invention
The technical problem to be solved in the present invention is to provide functional bulk blended fertilizer of a kind of humic acid type and preparation method thereof, and it is sun-proof that this bulk blended fertilizer has enhancing crop, and improve the effect that crop nutrition content absorbs, utilization rate of fertilizer is high, adds the output of crop.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the functional bulk blended fertilizer of a kind of humic acid type, comprises base fertilizer, complementary basic material, coated fertilizer and granulated material, makes through coating, granulation, blending; Base fertilizer is particle nitrogen fertilizer, granulated phosphate fertilizer and powdery potash fertilizer; Complementary basic material is powdery humic acids and attapulgite, for mixing with powdery potash fertilizer; Coated fertilizer is particle nitrogen fertilizer coating liquid, particle nitrogen fertilizer coating powder and granulated phosphate fertilizer coating liquid; Granulated material is powdery potash fertilizer granulation liquid and powdery potash fertilizer pelletizing.
The composition of particle nitrogen fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 0.1-3%, urea 1-20%, zinc sulfate 0.3-3%, manganous sulfate 0.1-2.5%, boric acid 0.1-0.8%, Sodium orthomolybdate 0.1-0.3%, sodium nitrophenolate 0.1-0.3%, citric acid 0.1-0.5%, ammonium citrate 0.5-1%, magnesium sulfate 0.1-1%, water are surplus.
The composition of particle nitrogen fertilizer coating powder is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1-0.3 part, vitamin B6 0.1-0.3 part, vitamin B12 0.1-0.3 part, Sodium Selenite 0.1-0.3 part, calcium pantothenate 0.1-1 part, para-aminotoluene acid 0.1-0.3 part, treated starch 0.1-2 part, cobalt chloride 0.1-0.3 part.
The composition of granulated phosphate fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 0.1-3%, urea 1 – 20%, zinc chloride 0.1-0.3%, Manganous chloride tetrahydrate 0.1 – 0.3%, boric acid 0.1-0.2%, magnesium chloride 0.1-0.2%, water are surplus.
The composition of powdery potash fertilizer granulation liquid is expressed as follows with mass percent: animal amino acid 0.1-3%, urea 1 – 20%, iron protochloride 0.1-10%, zinc chloride 0.1 – 0.3%, Manganous chloride tetrahydrate 0.1-0.3%, boric acid 0.1 – 0.2%, ammonium citrate 0.1-0.5%, sodium nitrophenolate 0.1-0.3%, magnesium chloride 0.1 – 0.2%, water are surplus.
The composition of powdery potash fertilizer pelletizing is expressed as follows with ratio of quality and the number of copies: vitaminB10 .1 – 0.3 part, vitamin B6 0.1-0.3 part, vitamin B12 0.1 – 0.3 part, calcium pantothenate 0.1-1 part, sequestrant EDTA-2Na 0.1-2 part.
Particle nitrogen fertilizer coating liquid consumption is the 0.5%-0.7% of particle nitrogen fertilizer quality, and particle nitrogen fertilizer coating powder consumption is the 0.3%-0.5% of particle nitrogen fertilizer quality; Granulated phosphate fertilizer coating liquid consumption is the 2%-3% of granulated phosphate fertilizer quality; Powdery humic acids consumption is the 5-10% of powdery potash fertilizer and complementary basic material quality summation; Attapulgite consumption is the 30-40% of powdery potash fertilizer and complementary basic material quality summation; Powdery potash fertilizer granulation liquid consumption is the 5%-7% of powdery potash fertilizer and complementary basic material quality summation, and powdery potash fertilizer pelletizing consumption is the 2-4% of powdery potash fertilizer and complementary basic material quality summation.
Preferably, the composition of particle nitrogen fertilizer coating liquid is expressed as follows with mass percent: animality amino acid/11 .5%, urea 18%, zinc sulfate 2.5%, manganous sulfate 2.0%, boric acid 0.5%, Sodium orthomolybdate 0.1%, sodium nitrophenolate 0.1%, citric acid 0.1%, ammonium citrate 0.5%, magnesium sulfate 0.2%, and water is surplus;
The composition of particle nitrogen fertilizer coating powder is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1 part, vitamin B6 0.1 part, vitamin B12 0.1 part, Sodium Selenite 0.1 part, calcium pantothenate 0.3 part, para-aminotoluene acid 0.1 part, treated starch 1.5 parts, cobalt chloride 0.1 part;
The composition of granulated phosphate fertilizer coating liquid is expressed as follows with mass percent: animality amino acid 2%, urea 16%, zinc chloride 0.3%, Manganous chloride tetrahydrate 0.3%, boric acid 0.1%, magnesium chloride 0.2%, water are surplus;
The composition of powdery potash fertilizer granulation liquid is expressed as follows with mass percent: animality amino acid/11 %, urea 5%, iron protochloride 5%, zinc chloride 0.2%, Manganous chloride tetrahydrate 0.2%, boric acid 0.1%, ammonium citrate 0.2%, sodium nitrophenolate 0.1%, magnesium chloride 0.2%, water are surplus;
The composition of powdery potash fertilizer pelletizing is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1 part, vitamin B6 0.1 part, vitamin B12 0.1 part, calcium pantothenate 0.5 part, sequestrant EDTA-2Na 1 part.
Preferably, particle nitrogen fertilizer is granular urea, and the particle size range of granular urea is 2-4.75 millimeter; Granulated phosphate fertilizer is one or both the mixture in monoammonium phosphate, diammonium phosphate; Powdery potash fertilizer is the mixture of one or more in Repone K, potassium sulfate, kiln ash potash fertilizer, saltpetre, potassic-magnesian fertilizer.
The preparation method of the functional bulk blended fertilizer of humic acid type, is characterized in that comprising the following steps:
(1) preparation of coating and granulated material:
1) preparation of particle nitrogen fertilizer coating liquid: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Simultaneously at other reactor having injected water by zinc sulfate, manganous sulfate, boric acid, citric acid, ammonium citrate, magnesium sulfate trace element 65-75 DEG C of dissolving, and add urea, after fully reacting, inject the animal amino acid aqueous solution, and stir, after temperature drops to 45-60 DEG C, then add sodium nitrophenolate, Sodium orthomolybdate, for subsequent use after filtering;
2) preparation of particle nitrogen fertilizer coating powder: VITMAIN B1, vitamin B6, vitamin B12, Sodium Selenite, calcium pantothenate, para-aminotoluene acid, treated starch and cobalt chloride are stirred, for subsequent use;
3) preparation of granulated phosphate fertilizer coating liquid: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Zinc chloride, Manganous chloride tetrahydrate, boric acid, magnesium chloride trace element 65-75 DEG C of dissolving, and are added urea, after fully reacting by the reactor simultaneously having injected water at other, inject the animal amino acid aqueous solution, and stir, treat that temperature drops to 45-60 DEG C, for subsequent use after filtering;
4) preparation of powdery potash fertilizer granulation liquid: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Simultaneously at other reactor having injected water by iron protochloride, zinc chloride, Manganous chloride tetrahydrate, boric acid, ammonium citrate, magnesium chloride trace element 65-75 DEG C of dissolving, and add urea, after fully reacting, inject the animal amino acid aqueous solution, and stir, sodium nitrophenolate is added again after temperature drops to 45-60 DEG C, for subsequent use after filtering;
5) preparation of powdery potash fertilizer pelletizing: VITMAIN B1, vitamin B6, vitamin B12, calcium pantothenate, sequestrant EDTA-2Na are stirred, for subsequent use;
(2) coating, granulation, blending:
1) preparation of coated granule nitrogenous fertilizer: with particle nitrogen fertilizer coating liquid, parcel process is carried out to particle nitrogen fertilizer in coating machine, enable particle nitrogen fertilizer coating liquid evenly be wrapped in particle nitrogen fertilizer surface, in the process of parcel, particle nitrogen fertilizer coating powder is evenly added; Particle nitrogen fertilizer drying process after parcel, makes coated granule nitrogenous fertilizer;
2) preparation of coated granule phosphate fertilizer: with granulated phosphate fertilizer coating liquid, parcel process is carried out to granulated phosphate fertilizer in coating machine, enable granulated phosphate fertilizer coating liquid evenly be wrapped in granulated phosphate fertilizer surface; Granulated phosphate fertilizer drying process after parcel, makes coated granule phosphate fertilizer;
3) preparation of granular potash fertilizer: the mixing of powdery potash fertilizer, powdery humic acids and attapulgite is mixed thoroughly, then enters in tablets press, spraying powdery potash fertilizer granulation liquid, forms particle, in the process of granulation, is evenly added by powdery potash fertilizer pelletizing; Or the mixing of powdery potash fertilizer, powdery humic acids, attapulgite and powdery potash fertilizer pelletizing mixed thoroughly, then enter in tablets press, spraying powdery potash fertilizer granulation liquid, forms particle; Potash fertilizer drying after granulation, cooling, screening, make granular potash fertilizer;
4) by above-mentioned obtained coated granule nitrogenous fertilizer, coated granule phosphate fertilizer and granular potash fertilizer even blend, metering packing.
In granulation liquid of the present invention, pelletizing each component together emphasis supplement reduce in crop-planting process former years in soil a part trace element.In this component, granulation liquid is with micro-and animal amino acid compatibility, occurs with chelated forms, and processing is reasonable, reduction production cost, raising Crop, the disease resistance increasing crop and resistance.
Specially in component add para-aminotoluene acid, its effect increases sun protection to UV sunlight of crop, plays a role in crop leaf is sun-proof.
Wherein with the addition of calcium pantothenate again, its effect is and VITAMIN compatibility, improves on Crop nutrient aspect and crop resistance and crop alimentary aspect adds percentage point.
Although the present invention is not slow release fertilizer, there is certain slow release effect.1, control nitrogen: control nitrogenous fertilizer delayed dissolved, adopt coated granule nitrogenous fertilizer, coated granule phosphate fertilizer and granular potash fertilizer to realize; The organic macromolecule group flocculation structure become by the water-soluble bulging of coating substance strengthens the adsorption to stripping nutrient; By coated fertilizer control nutrient water-soluble go out.After incorporation of fertilizerin the soil, coated fertilizer is while obstruct water molecules immerses, urease activity can be suppressed, and absorb water gradually, expand, its coefficient of expansion is relevant with coated fertilizer, according to test, coated granule nitrogenous fertilizer shows superior characteristic in adsorption by soil, ammonia volatilization, urease activity, mineralising, nitrogen recovery etc.2, short phosphorus: add material phosphorus to activation, strengthen the activity of phosphorus, promotes that crop is to the absorption of phosphorus.3, anti-potassium: granular potash fertilizer mainly uses potassium granulation liquid, by granule technique, powdery potash fertilizer being made round and smooth, the even-grained particle of profile, by strengthening group's flocculation structure to the adsorptive power of nutrient, reducing leaching infiltration loss, improve the confession potassium energy to crop late growing stage, reach the effect of protecting potassium synergy.
In other component, because the present invention is full nutrition, comprehensive functional bulk blended fertilizer, increase operation rate about 10% than general bulk blended fertilizer.Crop yield increase income with disease resistance on have more advantage, be new type functional bulk blended fertilizer.
The beneficial effect adopting technique scheme to produce is: it is sun-proof that bulk blended fertilizer of the present invention has enhancing crop, improve the effect that crop nutrition content absorbs, crop is no longer topdressed the time of infertility, a bottom application can reach the nutrient required for crop growth period, crop is at growing period, and while no longer topdressing, crop also can be increased production, and can save the fertilizer of nearly 1/5th than general bulk blended fertilizer, increase operation rate about 10%, add the output of crop.By using bulk blended fertilizer of the present invention, wheat yield improves 16.7%.
The present invention is applicable to all crops, just for the growth characteristics of crop and nutrient demand carry out nitrogen, phosphorus, potassium proportioning suitable adjustment just passable.
Embodiment
Embodiment 1
The functional bulk blended fertilizer of humic acid type (corn is special, N:P:K=28:6:8)
(1) composition of base fertilizer: granular urea (N≤46%, the particle size range of granular urea is 2-4.75 millimeter), particulate state monoammonium phosphate (N≤11%, P 2o 5≤ 44%), powdery Repone K (K 2o≤55%).
(2) composition of complementary basic material: powdery humic acids and attapulgite (alumina magnesia silicate powder).
(3) preparation of coated fertilizer and granulated material:
1) preparation of particle nitrogen fertilizer coating liquid:
1. the composition of particle nitrogen fertilizer coating liquid is expressed as follows with mass percent: animality amino acid/11 .5%, urea 18%, zinc sulfate 2.5%, manganous sulfate 2.0%, boric acid 0.5%, Sodium orthomolybdate 0.1%, sodium nitrophenolate 0.1%, citric acid 0.1%, ammonium citrate 0.5%, magnesium sulfate 0.2%, and water is surplus.
2. major equipment: temperature adjustment reactor or there is the retort, microprocessor pump drive, line strainer etc. of heating function and agitating function.
3. production method: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Simultaneously at other reactor having injected water by zinc sulfate, manganous sulfate, boric acid, citric acid, ammonium citrate, magnesium sulfate trace element 65-75 DEG C of dissolving, and add urea, after fully reacting, inject the animal amino acid aqueous solution, and stir, sodium nitrophenolate, Sodium orthomolybdate is added again after temperature drops to 45-60 DEG C, for subsequent use after filtering.
2) preparation of particle nitrogen fertilizer coating powder:
The composition of particle nitrogen fertilizer coating powder is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1 part, vitamin B6 0.1 part, vitamin B12 0.1 part, Sodium Selenite 0.1 part, calcium pantothenate 0.3 part, para-aminotoluene acid 0.1 part, treated starch 1.5 parts, cobalt chloride 0.1 part; Stir for subsequent use with blending machine.
3) preparation of granulated phosphate fertilizer coating liquid:
1. the composition of granulated phosphate fertilizer coating liquid is expressed as follows with mass percent: animality amino acid 2%, urea 16%, zinc chloride 0.3%, Manganous chloride tetrahydrate 0.3%, boric acid 0.1%, magnesium chloride 0.2%, water are surplus.
2. major equipment: temperature adjustment reactor or there is the retort, microprocessor pump drive, line strainer etc. of heating function and agitating function.
3. production method: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Zinc chloride, Manganous chloride tetrahydrate, boric acid, magnesium chloride trace element 65-75 DEG C of dissolving, and are added urea, after fully reacting by the reactor simultaneously having injected water at other, inject the animal amino acid aqueous solution, and stir, treat that temperature drops to 45-60 DEG C, for subsequent use after filtering.
4) preparation of powdery potash fertilizer granulation liquid:
1. the composition of powdery potash fertilizer granulation liquid is expressed as follows with mass percent: animality amino acid/11 %, urea 5%, iron protochloride 5%, zinc chloride 0.2%, Manganous chloride tetrahydrate 0.2%, boric acid 0.1%, ammonium citrate 0.2%, sodium nitrophenolate 0.1%, magnesium chloride 0.2%, water are surplus.
2. major equipment: temperature adjustment reactor or there is the retort, microprocessor pump drive, line strainer etc. of heating function and agitating function.
3. production method: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Simultaneously at other reactor having injected water by iron protochloride, zinc chloride, Manganous chloride tetrahydrate, boric acid, ammonium citrate, magnesium chloride trace element 65-75 DEG C of dissolving, and add urea, after fully reacting, inject the animal amino acid aqueous solution, and stir, sodium nitrophenolate is added again after temperature drops to 45-60 DEG C, for subsequent use after filtering.
5) preparation of powdery potash fertilizer pelletizing:
The composition of powdery potash fertilizer pelletizing is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1 part, vitamin B6 0.1 part, vitamin B12 0.1 part, calcium pantothenate 0.5 part, sequestrant EDTA-2Na 1 part, stir for subsequent use with blending machine.
(4) preparation of bulk blended fertilizer:
1) preparation of coated carbamide:
1. coating production unit: dryer, cooler, sieve apparatus, wrapping machine, transfer roller, measuring belt conveyer, coating liquid volume pump, spray equipment, hotblast stove, induced draft fan.
2. production method: with particle nitrogen fertilizer coating liquid, parcel process is carried out to granular urea (N≤46%) in coating machine, particle nitrogen fertilizer coating liquid is enable evenly to be wrapped in particle surface, particle nitrogen fertilizer coating liquid consumption is 0.5% of granular urea quality, in the process of parcel, the particle nitrogen fertilizer coating powder of 0.3% of granular urea quality is evenly added; Granular urea after coating adopts large ventilation cryodrying process, and general process bake out temperature is about 50 DEG C, makes coated carbamide.
2) preparation of coating monoammonium phosphate:
Coating production unit is the same, in coating machine, use granulated phosphate fertilizer coating liquid to particulate state monoammonium phosphate (N >=11%, P >=44%) carry out parcel process, enable granulated phosphate fertilizer coating liquid evenly be wrapped in particulate state monoammonium phosphate surface, granulated phosphate fertilizer coating liquid consumption is 2.5% of particulate state monoammonium phosphate quality; Particulate state monoammonium phosphate drying process after parcel, general process bake out temperature is about 150 DEG C, makes coating monoammonium phosphate.
3) preparation of granule potassium chloride:
1. granulation and above-mentioned two kinds of fertilizer complete processings are different, and production unit and ordinary compound fertilizer are produced basically identical, but add a dram, below illustrate; Comprise: disk or rotary drum granulator, rotary shelf drier (two), cooler, grade sieve apparatus, metering packing claim, and install spray equipment additional on disk or rotary drum granulator.
2. production method:
Get powdery Repone K (K 2o≤55%) 509 kgs/tonne, powdery humic acids 100 kgs/tonne, attapulgite 391 kgs/tonne, enter stirrer to mix thoroughly, then enter in tablets press, spraying powdery potash fertilizer granulation liquid, granulating method principle is utilized to form particle, in the process of granulation, powdery potash fertilizer pelletizing is evenly added (or, by powdery Repone K, powdery humic acids, attapulgite and powdery potash fertilizer pelletizing, enter stirrer to mix thoroughly, then enter in tablets press, spraying powdery potash fertilizer granulation liquid, forms particle); Repone K after granulation is through two dry (because in the process of granulation, the water content of particle reaches about 14% substantially, first drying does not reach production requirement), cooling, screening, obtain granularity at 3-4.5 ㎜ particle, match with the particle diameter of granular urea, particle monoammonium phosphate, particle water content control, within 1.5%, to prevent potassium chloride particle water content too high, thus affects product moisture knot.Powdery potash fertilizer granulation liquid consumption is 7% of powdery Repone K, powdery humic acids and attapulgite quality, and powdery potash fertilizer pelletizing consumption is 4% of powdery Repone K, powdery humic acids and attapulgite quality.Obtaining potash fertilizer content by above formula is 28%.
4) blending: production unit is special bulk blended fertilizer production unit, production method: take coated carbamide 576 kgs/tonne, coating monoammonium phosphate 136 kgs/tonne, KCE content be 28% potassium chloride particle 288 kgs/tonne, through blending machine even blend, metering packing.
Embodiment 2
The functional bulk blended fertilizer of humic acid type, preparation method is with embodiment 1, and difference is:
N:P:K=24:15:6
Blending proportioning is carried out by above-mentioned formula.Take coated carbamide 440 kgs/tonne, coating monoammonium phosphate 341 kgs/tonne, KCE content be 28% potassium chloride particle 219 kgs/tonne, through blending machine even blend, metering packing.
Embodiment 3
The functional bulk blended fertilizer of humic acid type, preparation method is with embodiment 1, and difference is:
N:P:K=24:15:6
Base fertilizer forms: granular urea (N≤46%), particulate state diammonium phosphate, powdered potassium sulfate.
The composition of particle nitrogen fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 3%, urea 20%, zinc sulfate 0.3%, manganous sulfate 2.5%, boric acid 0.1%, Sodium orthomolybdate 0.2%, sodium nitrophenolate 0.3%, citric acid 0.5%, ammonium citrate 0.8%, magnesium sulfate 0.1, water are surplus.
The composition of particle nitrogen fertilizer coating powder is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.2 part, vitamin B6 0.3 part, vitamin B12 0.3 part, Sodium Selenite 0.2 part, calcium pantothenate 1 part, para-aminotoluene acid 0.2 part, treated starch 2 parts, cobalt chloride 0.3 part.
The composition of granulated phosphate fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 3%, urea 20%, zinc chloride 0.1%, Manganous chloride tetrahydrate 0.2%, boric acid 0.2%, magnesium chloride 0.1%, water are surplus.
The composition of powdery potash fertilizer granulation liquid is expressed as follows with mass percent: animal amino acid 0.1%, urea 1%, iron protochloride 0.1%, zinc chloride 0.3%, Manganous chloride tetrahydrate 0.1%, boric acid 0.2%, ammonium citrate 0.5%, sodium nitrophenolate 0.2%, magnesium chloride 0.2%, water are surplus.
The composition of powdery potash fertilizer pelletizing is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.3 part, vitamin B6 0.2 part, vitamin B12 0.3 part, calcium pantothenate 1 part, sequestrant EDTA-2Na 0.1 part.
Particle nitrogen fertilizer coating liquid consumption is 0.7% of particle nitrogen fertilizer quality, and particle nitrogen fertilizer coating powder consumption is 0.4% of particle nitrogen fertilizer quality; Granulated phosphate fertilizer coating liquid consumption is 3% of granulated phosphate fertilizer quality; Powdery humic acids consumption is 5% of powdery potash fertilizer and complementary basic material quality summation; Attapulgite consumption is 35% of powdery potash fertilizer and complementary basic material quality summation; Powdery potash fertilizer granulation liquid consumption is 6% of powdery potash fertilizer and complementary basic material quality summation, and powdery potash fertilizer pelletizing consumption is 2% of powdery potash fertilizer and complementary basic material quality summation.
Embodiment 4
The functional bulk blended fertilizer of humic acid type, preparation method is with embodiment 1, and difference is:
Base fertilizer forms: the mixture that the mixture that granular urea (N≤46%), granulated phosphate fertilizer are monoammonium phosphate and diammonium phosphate, powdery potash fertilizer are kiln ash potash fertilizer, saltpetre and potassic-magnesian fertilizer.
The composition of particle nitrogen fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 0.1%, urea 1%, zinc sulfate 3%, manganous sulfate 0.1%, boric acid 0.8%, Sodium orthomolybdate 0.3%, sodium nitrophenolate 0.2%, citric acid 0.3%, ammonium citrate 1%, magnesium sulfate 1%, water are surplus.
The composition of particle nitrogen fertilizer coating powder is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.3 part, vitamin B6 0.2 part, vitamin B12 0.2 part, Sodium Selenite 0.3 part, calcium pantothenate 0.1 part, para-aminotoluene acid 0.3 part, treated starch 0.1 part, cobalt chloride 0.2 part.
The composition of granulated phosphate fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 0.1%, urea 1%, zinc chloride 0.2%, Manganous chloride tetrahydrate 0.1%, boric acid 0.1%, magnesium chloride 0.2%, water are surplus.
The composition of powdery potash fertilizer granulation liquid is expressed as follows with mass percent: animal amino acid 3%, urea 20%, iron protochloride 10%, zinc chloride 0.1%, Manganous chloride tetrahydrate 0.3%, boric acid 0.1%, ammonium citrate 0.1%, sodium nitrophenolate 0.3%, magnesium chloride 0.1%, water are surplus.
The composition of powdery potash fertilizer pelletizing is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.2 part, vitamin B6 0.3 part, vitamin B12 0.2 part, calcium pantothenate 0.1 part, sequestrant EDTA-2Na 2 parts.
Particle nitrogen fertilizer coating liquid consumption is 0.6% of particle nitrogen fertilizer quality, and particle nitrogen fertilizer coating powder consumption is 0.5% of particle nitrogen fertilizer quality; Granulated phosphate fertilizer coating liquid consumption is 2% of granulated phosphate fertilizer quality; Powdery humic acids consumption is 8% of powdery potash fertilizer and complementary basic material quality summation; Attapulgite consumption is 30% of powdery potash fertilizer and complementary basic material quality summation; Powdery potash fertilizer granulation liquid consumption is 5% of powdery potash fertilizer and complementary basic material quality summation, and powdery potash fertilizer pelletizing consumption is 3% of powdery potash fertilizer and complementary basic material quality summation.
Effect example
It is below this bulk blended fertilizer test wheat yield contrast test table
One, order ground is tested
Experiment proves: this bulk blended fertilizer has high energy, efficient, fertilizer efficiency permanent, can provide wheat institute in time of infertility fertilizer requirement, increase production, increases income, cost-saving synergistic.
Two, test arrangement
In conjunction with wheat conservation tillage performance, take same plot, a same wheat breed of test and the different farming method, equal amts can expect experimental control.Test fertilizer is:
This bulk blended fertilizer: N24:P15:KO 26
Conventional compound manure: N15:P15:KO 215
Interpretation of result: when the consumption that applies fertilizer is identical, this bulk blended fertilizer utilization ratio is high, and fertilizer application frequency is few, and by using bulk blended fertilizer of the present invention, wheat yield improves 16.7%.
The present invention is applicable to all crops, just for the growth characteristics of crop and nutrient demand carry out nitrogen, phosphorus, potassium proportioning suitable adjustment just passable.

Claims (4)

1. the functional bulk blended fertilizer of humic acid type, is characterized in that: comprise following base fertilizer, complementary basic material, coated fertilizer and granulated material, make through coating, granulation, blending; Described base fertilizer is particle nitrogen fertilizer, granulated phosphate fertilizer and powdery potash fertilizer; Complementary basic material is powdery humic acids and attapulgite, for mixing with powdery potash fertilizer; Coated fertilizer is particle nitrogen fertilizer coating liquid, particle nitrogen fertilizer coating powder and granulated phosphate fertilizer coating liquid; Granulated material is powdery potash fertilizer granulation liquid and powdery potash fertilizer pelletizing;
The composition of described particle nitrogen fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 0.1-3%, urea 1-20%, zinc sulfate 0.3-3%, manganous sulfate 0.1-2.5%, boric acid 0.1-0.8%, Sodium orthomolybdate 0.1-0.3%, sodium nitrophenolate 0.1-0.3%, citric acid 0.1-0.5%, ammonium citrate 0.5-1%, magnesium sulfate 0.1-1%, water are surplus;
The composition of particle nitrogen fertilizer coating powder is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1-0.3 part, vitamin B6 0.1-0.3 part, vitamin B12 0.1-0.3 part, Sodium Selenite 0.1-0.3 part, calcium pantothenate 0.1-1 part, para-aminotoluene acid 0.1-0.3 part, treated starch 0.1-2 part, cobalt chloride 0.1-0.3 part;
The composition of granulated phosphate fertilizer coating liquid is expressed as follows with mass percent: animal amino acid 0.1-3%, urea 1 – 20%, zinc chloride 0.1-0.3%, Manganous chloride tetrahydrate 0.1 – 0.3%, boric acid 0.1-0.2%, magnesium chloride 0.1-0.2%, water are surplus;
The composition of powdery potash fertilizer granulation liquid is expressed as follows with mass percent: animal amino acid 0.1-3%, urea 1 – 20%, iron protochloride 0.1-10%, zinc chloride 0.1 – 0.3%, Manganous chloride tetrahydrate 0.1-0.3%, boric acid 0.1 – 0.2%, ammonium citrate 0.1-0.5%, sodium nitrophenolate 0.1-0.3%, magnesium chloride 0.1 – 0.2%, water are surplus;
The composition of powdery potash fertilizer pelletizing is expressed as follows with ratio of quality and the number of copies: vitaminB10 .1 – 0.3 part, vitamin B6 0.1-0.3 part, vitamin B12 0.1 – 0.3 part, calcium pantothenate 0.1-1 part, sequestrant EDTA-2Na 0.1-2 part;
Particle nitrogen fertilizer coating liquid consumption is the 0.5%-0.7% of particle nitrogen fertilizer quality, and particle nitrogen fertilizer coating powder consumption is the 0.3%-0.5% of particle nitrogen fertilizer quality; Granulated phosphate fertilizer coating liquid consumption is the 2%-3% of granulated phosphate fertilizer quality; Powdery humic acids consumption is the 5-10% of powdery potash fertilizer and complementary basic material quality summation; Attapulgite consumption is the 30-40% of powdery potash fertilizer and complementary basic material quality summation; Powdery potash fertilizer granulation liquid consumption is the 5%-7% of powdery potash fertilizer and complementary basic material quality summation, and powdery potash fertilizer pelletizing consumption is the 2-4% of powdery potash fertilizer and complementary basic material quality summation.
2. the functional bulk blended fertilizer of humic acid type according to claim 1, it is characterized in that: the composition of described particle nitrogen fertilizer coating liquid is expressed as follows with mass percent: animality amino acid/11 .5%, urea 18%, zinc sulfate 2.5%, manganous sulfate 2.0%, boric acid 0.5%, Sodium orthomolybdate 0.1%, sodium nitrophenolate 0.1%, citric acid 0.1%, ammonium citrate 0.5%, magnesium sulfate 0.2%, water is surplus;
The composition of particle nitrogen fertilizer coating powder is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1 part, vitamin B6 0.1 part, vitamin B12 0.1 part, Sodium Selenite 0.1 part, calcium pantothenate 0.3 part, para-aminotoluene acid 0.1 part, treated starch 1.5 parts, cobalt chloride 0.1 part;
The composition of granulated phosphate fertilizer coating liquid is expressed as follows with mass percent: animality amino acid 2%, urea 16%, zinc chloride 0.3%, Manganous chloride tetrahydrate 0.3%, boric acid 0.1%, magnesium chloride 0.2%, water are surplus;
The composition of powdery potash fertilizer granulation liquid is expressed as follows with mass percent: animality amino acid/11 %, urea 5%, iron protochloride 5%, zinc chloride 0.2%, Manganous chloride tetrahydrate 0.2%, boric acid 0.1%, ammonium citrate 0.2%, sodium nitrophenolate 0.1%, magnesium chloride 0.2%, water are surplus;
The composition of powdery potash fertilizer pelletizing is expressed as follows with ratio of quality and the number of copies: VITMAIN B1 0.1 part, vitamin B6 0.1 part, vitamin B12 0.1 part, calcium pantothenate 0.5 part, sequestrant EDTA-2Na 1 part.
3. the functional bulk blended fertilizer of humic acid type according to claim 1, is characterized in that: described particle nitrogen fertilizer is granular urea, and the particle size range of granular urea is 2-4.75 millimeter; Granulated phosphate fertilizer is one or both the mixture in monoammonium phosphate, diammonium phosphate; Powdery potash fertilizer is the mixture of one or more in Repone K, potassium sulfate, kiln ash potash fertilizer, saltpetre, potassic-magnesian fertilizer.
4. the preparation method of the functional bulk blended fertilizer of the humic acid type according to any one of claim 1-3, is characterized in that comprising the following steps:
(1) preparation of coating and granulated material:
1) preparation of particle nitrogen fertilizer coating liquid: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Simultaneously at other reactor having injected water by zinc sulfate, manganous sulfate, boric acid, citric acid, ammonium citrate, magnesium sulfate trace element 65-75 DEG C of dissolving, and add urea, after fully reacting, inject the animal amino acid aqueous solution, and stir, after temperature drops to 45-60 DEG C, then add sodium nitrophenolate, Sodium orthomolybdate, for subsequent use after filtering;
2) preparation of particle nitrogen fertilizer coating powder: VITMAIN B1, vitamin B6, vitamin B12, Sodium Selenite, calcium pantothenate, para-aminotoluene acid, treated starch and cobalt chloride are stirred, for subsequent use;
3) preparation of granulated phosphate fertilizer coating liquid: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Zinc chloride, Manganous chloride tetrahydrate, boric acid, magnesium chloride trace element 65-75 DEG C of dissolving, and are added urea, after fully reacting by the reactor simultaneously having injected water at other, inject the animal amino acid aqueous solution, and stir, treat that temperature drops to 45-60 DEG C, for subsequent use after filtering;
4) preparation of powdery potash fertilizer granulation liquid: animal amino acid is put into the reactor having injected a small amount of water, be progressively heated to 65-75 DEG C, and keep stirring, obtain the animal amino acid aqueous solution, stand-by; Simultaneously at other reactor having injected water by iron protochloride, zinc chloride, Manganous chloride tetrahydrate, boric acid, ammonium citrate, magnesium chloride trace element 65-75 DEG C of dissolving, and add urea, after fully reacting, inject the animal amino acid aqueous solution, and stir, sodium nitrophenolate is added again after temperature drops to 45-60 DEG C, for subsequent use after filtering;
5) preparation of powdery potash fertilizer pelletizing: VITMAIN B1, vitamin B6, vitamin B12, calcium pantothenate and sequestrant EDTA-2Na are stirred, for subsequent use;
(2) coating, granulation, blending:
1) preparation of coated granule nitrogenous fertilizer: with particle nitrogen fertilizer coating liquid, parcel process is carried out to particle nitrogen fertilizer in coating machine, enable particle nitrogen fertilizer coating liquid evenly be wrapped in particle nitrogen fertilizer surface, in the process of parcel, particle nitrogen fertilizer coating powder is evenly added; Particle nitrogen fertilizer drying process after parcel, makes coated granule nitrogenous fertilizer;
2) preparation of coated granule phosphate fertilizer: with granulated phosphate fertilizer coating liquid, parcel process is carried out to granulated phosphate fertilizer in coating machine, enable granulated phosphate fertilizer coating liquid evenly be wrapped in granulated phosphate fertilizer surface; Granulated phosphate fertilizer drying process after parcel, makes coated granule phosphate fertilizer;
3) preparation of granular potash fertilizer: the mixing of powdery potash fertilizer, powdery humic acids and attapulgite is mixed thoroughly, then enters in tablets press, spraying powdery potash fertilizer granulation liquid, forms particle, in the process of granulation, is evenly added by powdery potash fertilizer pelletizing; Or the mixing of powdery potash fertilizer, powdery humic acids, attapulgite and powdery potash fertilizer pelletizing mixed thoroughly, then enter in tablets press, spraying powdery potash fertilizer granulation liquid, forms particle; Potash fertilizer drying after granulation, cooling, screening, make granular potash fertilizer;
4) by above-mentioned obtained coated granule nitrogenous fertilizer, coated granule phosphate fertilizer and granular potash fertilizer even blend, metering packing.
CN201410739755.3A 2014-12-08 2014-12-08 Humic acid type functional blended fertilizer and preparation method thereof Active CN104447010B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410739755.3A CN104447010B (en) 2014-12-08 2014-12-08 Humic acid type functional blended fertilizer and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410739755.3A CN104447010B (en) 2014-12-08 2014-12-08 Humic acid type functional blended fertilizer and preparation method thereof

Publications (2)

Publication Number Publication Date
CN104447010A true CN104447010A (en) 2015-03-25
CN104447010B CN104447010B (en) 2017-02-22

Family

ID=52893853

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410739755.3A Active CN104447010B (en) 2014-12-08 2014-12-08 Humic acid type functional blended fertilizer and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104447010B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106116949A (en) * 2016-06-24 2016-11-16 苏州市泰盛农业科技有限公司 A kind of planting loquat long-acting coated slow-release compound fertilizer and preparation method thereof
CN108117440A (en) * 2016-11-30 2018-06-05 丹阳市大丰收苗木专业合作社 A kind of Chinese rose quick-acting fertilizer
WO2020121164A1 (en) 2018-12-11 2020-06-18 Sabic Global Technologies B.V. Organic chelated zinc coated fertilizer for better crops and soil health
WO2021198914A1 (en) 2020-03-31 2021-10-07 Sabic Global Technologies B.V. Zinc coated urea fertilizer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992217A1 (en) * 2007-04-25 2008-11-19 Nu3 B.V. Fertilizer for potting soil
CN101353285A (en) * 2008-08-29 2009-01-28 薛立成 Natural multifunctional mineral compound fertilizer
CN101362662A (en) * 2008-09-03 2009-02-11 阎宗彪 Coating sustained-released disposable fertilizer
CN101857490A (en) * 2010-05-18 2010-10-13 张超 Slow/controlled-release compound fertilizer suitable for field crops
CN102531759A (en) * 2010-12-13 2012-07-04 王海炜 Slow-release composite fertilizer
CN103113157A (en) * 2013-02-01 2013-05-22 兰州熙瑞化工科技有限公司 Slow-release water-retaining compound fertilizer composition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992217A1 (en) * 2007-04-25 2008-11-19 Nu3 B.V. Fertilizer for potting soil
CN101353285A (en) * 2008-08-29 2009-01-28 薛立成 Natural multifunctional mineral compound fertilizer
CN101362662A (en) * 2008-09-03 2009-02-11 阎宗彪 Coating sustained-released disposable fertilizer
CN101857490A (en) * 2010-05-18 2010-10-13 张超 Slow/controlled-release compound fertilizer suitable for field crops
CN102531759A (en) * 2010-12-13 2012-07-04 王海炜 Slow-release composite fertilizer
CN103113157A (en) * 2013-02-01 2013-05-22 兰州熙瑞化工科技有限公司 Slow-release water-retaining compound fertilizer composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106116949A (en) * 2016-06-24 2016-11-16 苏州市泰盛农业科技有限公司 A kind of planting loquat long-acting coated slow-release compound fertilizer and preparation method thereof
CN108117440A (en) * 2016-11-30 2018-06-05 丹阳市大丰收苗木专业合作社 A kind of Chinese rose quick-acting fertilizer
WO2020121164A1 (en) 2018-12-11 2020-06-18 Sabic Global Technologies B.V. Organic chelated zinc coated fertilizer for better crops and soil health
WO2021198914A1 (en) 2020-03-31 2021-10-07 Sabic Global Technologies B.V. Zinc coated urea fertilizer

Also Published As

Publication number Publication date
CN104447010B (en) 2017-02-22

Similar Documents

Publication Publication Date Title
CN101362662B (en) Coating sustained-released disposable fertilizer
CN101633587B (en) Saline-alkali land improving and fertilizing agent and preparation method thereof
CN101805616B (en) Disease-resistant synergy-type conditioner of protected horticultural vegetable field soil and preparation method thereof
CN103951509B (en) Functional ecological potash fertilizer for agriculture and preparation method thereof
CN101570455B (en) Method for preparing particle ammonium sulfate product by organic-inorganic binder
CN101948349B (en) Preparation process for organic-inorganic compound fertilizer
CN104447009A (en) Humic acid type functional compound fertilizer and preparation method thereof
CN103483110B (en) Whole process is for nutrient compound manure and preparation method thereof
CN105439697A (en) Water-retention and synergism compound fertilizer and preparation method thereof
CN108976018A (en) Middle microelement intermixture and the preparation method for wrapping up secondary and micro-element fertilizers
CN103265381A (en) Green environment-friendly compound fertilizer prepared from three kinds of organic-inorganic nitrogen and preparation method thereof
CN104387210B (en) granular soil conditioner containing microbial bacteria and preparation method thereof
CN101293792B (en) Fertilizer special for organic, inorganic mix wheat
CN104496696A (en) Medium element calcium fertilizer for preventing physiological diseases and preparation method of medium element calcium fertilizer
CN104447010B (en) Humic acid type functional blended fertilizer and preparation method thereof
CN101723733B (en) Method for producing diammonium phosphate product added with trace elements
CN103382140A (en) Environment-friendly nitrogen potassium dressing fertilizer containing various nitrogen elements and preparation method thereof
CN105237295A (en) Special humic acid chelated slow-release fertilizer for wheat and preparation method thereof
CN109824396A (en) A kind of preparation method of organic and inorganic environmental protection and public nuisance free fertilizer special for vegetable material
CN109627106A (en) A kind of high-activity humic acid ecology compound fertilizer
CN106748517B (en) Function-enhanced granular composite soil conditioner
CN105646106A (en) Humic acid type functionality organic-inorganic compound fertilizer and preparing method thereof
CN103724062A (en) Large-grained inorganic coated fertilizer and production method thereof
CN105272590A (en) Special humic acid chelated slow-release fertilizer for corn and preparation method of slow-release fertilizer
CN105272518A (en) Humic acid chelating slow release fertilizer special for rice and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant