CN106146110A - A kind of long-acting slow-release liquid fertilizer rich in trace element and preparation method thereof - Google Patents
A kind of long-acting slow-release liquid fertilizer rich in trace element and preparation method thereof Download PDFInfo
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- CN106146110A CN106146110A CN201610441218.XA CN201610441218A CN106146110A CN 106146110 A CN106146110 A CN 106146110A CN 201610441218 A CN201610441218 A CN 201610441218A CN 106146110 A CN106146110 A CN 106146110A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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Abstract
The invention discloses a kind of long-acting slow-release liquid fertilizer rich in trace element and preparation method thereof, belong to liquid type Water soluble fertilizer production technical field.It is prepared from the following materials: carbamide, ammonium nitrate, industrial monoammonium phosphate, APP, potassium dihydrogen phosphate, PTPP (potassium tripolyphosphate), potassium chloride, potassium formate, EDTA chelated zinc, EDTA chelated iron, EDTA Chelated Manganese, Borax, seven water ammonium molybdates, ferrous sulfate heptahydrate, zinc sulfate monohydrate, anhydrous cupric sulfate, water.The present invention can make robust plant, and strain shape is compact, and can strengthen the anti-adversity abilities such as cold-resistant, drought resisting, Resistant, has dual quick-acting Yu the long-acting effect of trace element and a great number of elements simultaneously.
Description
Technical field
The invention belongs to liquid type Water soluble fertilizer production technical field, particularly to a kind of high nitrogen type rich in trace element,
Long-acting slow-release liquid fertilizer.
Background technology
China's annual agricultural irrigation water total amount is about 3600 billion cubic meters, and chemical fertilizer application total amount reaches 58,000,000 tons.Plough
The ground resource constraint such as minimizing, water resources shortage is becoming tight day by day, and water and fertilizer utilization is the highest, broad irrigation, excessive fertilization phenomenon also than
More universal.In recent years, agricultural sectors at different levels in order to improve water resource and utilization rate of fertilizer, Demonstration And Extension water-fertilizer integral skill
Art, takes to irrigate and fertilising combination, it is achieved water and fertilizer synchronization manages and efficiently utilizes.
Water-fertilizer integral is the strategic direction that liquid manure utilization ratio is greatly improved.Water-fertilizer integral is also called fertigation,
Just be made by pressure irrigation system, fertilizer dissolved into solution, while irrigating solution is transported to crop root soil or
Person's plant leaf surface, meets crop timely and appropriately to moisture and the demand of nutrient.Accomplishing that precision is applied fertilizer, crop needs anything to mend
What fills, and absorption rate increases substantially.Water-fertilizer integral according to planting scheme, crop to the demand of nutrient, real-time planting
Strain and Soil K+adsorption result, crop reaction and market determine fertilizer variety and fertilization time to the demand of agricultural product, enhance
Control level and ability to agricultural production.China's water-fertilizer integral is mainly used in installment agriculture growth, orchard and vegetable etc.
Land for growing field crops industrial crops, and other crops of better economic benefit, such as Inner Mongol Rhizoma Solani tuber osi, cotton in Xinjiang etc..Actual application card
Bright, industrial crops use the Integration of Water into Fertilizer, can improve utilization rate of fertilizer 50%, joint fertile more than 30%, product volume increase and quality
Significantly improve.
In liquid fertilizer (the most highly enriched clear liquid type fertilizer), each component be combined with each other, and defines a stable body
System, nutrition content is high, even concentration, and nutritional labeling contained in each fertilizer in the product that same batch produces is complete
Unanimously, balanced in nutrition, effect stability, absorption rate height, safer, more green, more environmentally friendly, right with water-fertilizer integral perfection
Connecing, wide market, the country universal in irrigation technique and automatization's fertilising is used widely.U.S.'s liquid fertilizer accounts for entirely
The 55% of portion's fertilizer, Israel's field almost all Liquid Fertilizer.Along with the popularization of the Integration of Water into Fertilizer, particularly irrigate and set
That executes is universal, and liquid fertilizer has the huge market demand.
Nutrient soluble in water, plant is easier to absorb.Inhale as a example by fertilizer by root system, during inhaling fertilizer, near root
Easily absorbing, the nutrient relative concentration away from root is the highest.And there is a diffusion process, highly concentrated away from root system in nature
Degree fertilizer, can be diffused into root system along with soil, and spread the participation needing water.Fertilizer is inhaled on blade face, it is also desirable to the participation of water.Water solublity
The best, spray application to blade face, crop is easier to absorb, and therefore Liquid Fertilizer just can accomplish the at utmost absorption of fertilizer.
N P and K NPK, compared with straight fertilizer, can preferably meet the nutrient need in crop cycle
Ask, it is to avoid the excess of elements in Soil and the phenomenon of shortage nutrition, balance fertilizing, yield is higher.
The effect of trace element is the most increasingly paid close attention to by people, plays more and more heavier in agricultural modernization produces
The role wanted, plays the most important effect.The punching containing trace element water-soluble fertilizer is executed can increase root system of plant and trace unit
The contact of element, improves utilization rate of fertilizer.Carrying out foliage-spray containing trace element water-soluble fertilizer, plant leaf blade can directly absorb fertilizer
In trace element, solve the nutritional deficiency symptom of plant quickly.
At present, the Liquid Fertilizer product on market is how based on trace element, functional type fertilizer, big in this invention product
Secondary element combines with trace element, preferably meets demand of plant growth, not only in a great number of elements containing have immediate effect with long-acting become
Point, trace element being also adopted by the mode that quick-acting state combines with long-acting state, so makes product fertilizer efficiency more longlasting, crop yield is more
Height, quality is more preferable.
Summary of the invention
It is an object of the invention to provide a kind of long-acting slow-release liquid fertilizer rich in trace element and preparation method thereof, with suitable
Answer the development of the industrial crops water-fertilizer integrals such as fruit and vegerable vegetable, improve utilization rate of fertilizer.
A kind of long-acting slow-release liquid fertilizer rich in trace element, it is characterised in that raw material components weight portion is as follows: carbamide
200-500 part, ammonium nitrate 20-100 part, industrial monoammonium phosphate 1-80 part, APP 50-200 part, potassium dihydrogen phosphate 20-120
Part, PTPP (potassium tripolyphosphate) 80-200 part, potassium chloride 20-120 part, potassium formate 20-150 part, EDTA chelated zinc 1-6 part, EDTA chelating
Ferrum 1-6 part, EDTA Chelated Manganese 1-6 part, Borax 1-10 part, seven water ammonium molybdate 0.1-5 parts, ferrous sulfate heptahydrate 1-5 part, a water sulfur
Acid zinc 1-5 part, anhydrous cupric sulfate 1-5 part, water 400-600 part；
Above-mentioned raw materials is commercially available, wherein:
Carbamide is small particle urea, nitrogenous >=46.4%；
Ammonium nitrate is nitrogenous >=and 34%；
Industrial monoammonium phosphate is nitrogenous >=and 12%, phosphorus pentoxide >=61%；
APP is nitrogenous >=and 24%, phosphorus pentoxide >=45%；
Potassium dihydrogen phosphate contains phosphorus pentoxide >=52%, potassium oxide >=34%；
PTPP (potassium tripolyphosphate) contains phosphorus pentoxide >=47.4%, potassium oxide >=52.4%；
Potassium chloride contains potassium oxide >=62%；
Potassium formate contains potassium oxide >=56%；
EDTA Chelated Manganese contains manganese >=13%；
EDTA chelated zinc contains zinc >=15%；
EDTA chelated iron iron content >=13%
Borax boracic >=10%；
Seven water ammonium molybdates contain molybdenum >=54%；
Ferrous sulfate heptahydrate iron content >=20；
Zinc sulfate monohydrate contains zinc >=33；
Anhydrous cupric sulfate cupric >=40.
A kind of long-acting slow-release liquid fertilizer rich in trace element of the present invention, further preferred raw material components weight portion is such as
Under: carbamide 350-450 part, ammonium nitrate 30-50 part, industrial monoammonium phosphate 10-40 part, APP 80-120 part, biphosphate
Potassium 30-120 part, PTPP (potassium tripolyphosphate) 100-150 part, potassium chloride 50-70 part, potassium formate 40-60 part, EDTA chelated zinc 2-4 part,
EDTA chelated iron 1-3 part, EDTA Chelated Manganese 1-3 part, Borax 4-6 part, seven water ammonium molybdate 0.1-1 parts, ferrous sulfate heptahydrate 1-3
Part, zinc sulfate monohydrate 2-4 part, anhydrous cupric sulfate 1-3 part, water 420-520 part.
A kind of long-acting slow-release liquid fertilizer rich in trace element of the present invention, most preferably raw material components weight portion is as follows: urine
Element 390 parts, ammonium nitrate 35 parts, industrial monoammonium phosphate 30 parts, APP 100 parts, potassium dihydrogen phosphate 40 parts, PTPP (potassium tripolyphosphate)
120 parts, 63 parts of potassium chloride, potassium formate 48 parts, EDTA chelated zinc 3 parts, EDTA chelated iron 1.5 parts, EDTA Chelated Manganese 1.5 parts, boron
6 parts of sand, seven water ammonium molybdate 0.5 part, ferrous sulfate heptahydrate 1.5 parts, zinc sulfate monohydrate 3 parts, anhydrous cupric sulfate 1.5 parts, water 500
Part.
A kind of long-acting slow-release liquid fertilizer rich in trace element of the present invention uses full-automatic dispensing equipment production technology, tool
Body step is as follows:
(1) by carbamide, ammonium nitrate, industrial monoammonium phosphate, APP, potassium dihydrogen phosphate, PTPP (potassium tripolyphosphate), potassium formate, chlorination
Potassium, water, after metering, are conveyed in agitator, stirring and dissolving；
(2) by EDTA chelated iron, EDTA Chelated Manganese, EDTA chelated zinc, Borax, seven water ammonium molybdates, zinc sulfate monohydrate, seven water sulphuric acid
After ferrous iron, anhydrous cupric sulfate are respectively through metering, send in agitator according to proportioning, use Double helix fan blade type stirring technique to enter
Row stirring, is sufficiently mixed at 85 DEG C；
(3) deliver to normal-pressure liquid packer after the liquid mixed is delivered to cooling bath cooling and carry out fill,.
Using method of the present invention is to drip to execute or spray every mu of each 5-10L or every mu of 10-15L executed by base, be mainly used in through
Ji crop, can make robust plant, and strain shape is compact；And the anti-adversity abilities such as cold-resistant, drought resisting, Resistant can be strengthened.The present invention's is useful
Effect is specific as follows:
(1) present invention contains the nitrogen sources such as carbamide, ammonium nitrate, industrial monoammonium phosphate, APP, amidonitrogen and ammonium nitrogen, nitre
State nitrogen is reasonably combined, additionally, the slow nitrogen that APP contains, makes formula have quick-acting fertilizer and the double effects of delayed fertilizer, logical
The means such as sprinkling irrigation, drip irrigation and mechanical deep fertilizing of crossing are used, and utilization rate is up to 60%-80%, and wherein moisture also provides for crops
Extra irrigation；
(2) present invention with the addition of the trace element such as the required zinc of plant growth, manganese, boron, molybdenum, ferrum, can strengthen root of the crop, stem, leaf
Resistance against diseases, increase crop photosynthesis, improve enzyme activity, and then improve crop yield and quality；
(3) present invention contains inorganic states trace element and chelated microelements simultaneously, can use and rush outside foliage-spray and root
The fertilization mode executed, plays the quick-acting and long-acting of trace element；
(4) have employed APP in products material of the present invention, APP has slow-release nitrogen, phosphorus；Trace element in chelating；Poly-
The backbone of ammonium phosphate, is difficult to the advantages such as burn seedlings, serves dual quick-acting Yu the long-acting work of trace element and a great number of elements
With；
(5) raw material that the present invention uses is the most molten in cold water, can effectively prevent from blocking spray orifice when spray or drip irrigation, be suitable for water saving agriculture
Industry fertigation use, is particularly suitable for the water-deficient area industrial crops such as Xinjiang and uses.
Detailed description of the invention
Embodiment 1
The preparation of the present invention most preferably proportioning fertilizer:
Prescription: 390 parts of carbamide, ammonium nitrate 35 parts, industrial monoammonium phosphate 30 parts, APP 100 parts, potassium dihydrogen phosphate 40 parts,
PTPP (potassium tripolyphosphate) 120 parts, 63 parts of potassium chloride, potassium formate 48 parts, EDTA chelated zinc 3 parts, EDTA chelated iron 1.5 parts, EDTA chelate
1.5 parts of manganese, Borax 6 parts, seven water ammonium molybdate 0.5 part, ferrous sulfate heptahydrate 1.5 parts, zinc sulfate monohydrate 3 parts, anhydrous cupric sulfate 1.5
Part, 500 parts of water.
Concrete production technology is as follows:
(1) by carbamide, ammonium nitrate, industrial monoammonium phosphate, APP, PTPP (potassium tripolyphosphate), potassium dihydrogen phosphate, potassium chloride, formic acid
Potassium, water, after metering, are conveyed in agitator, stirring and dissolving；
(2) by EDTA chelated iron, EDTA Chelated Manganese, EDTA chelated zinc, Borax, seven water ammonium molybdates, zinc sulfate monohydrate, seven water sulphuric acid
After ferrous iron, anhydrous cupric sulfate are respectively through metering, send in agitator according to proportioning, use Double helix fan blade type stirring technique to enter
Row stirring, is sufficiently mixed at 85 DEG C；
(3) deliver to normal-pressure liquid packer after the liquid mixed is delivered to cooling bath cooling and carry out fill,.
The product specification obtained is high nitrogen type 220-140-140g/L.
Embodiment 2
The preparation of arbitrary proportioning fertilizer in the scope of the invention:
Prescription:. 450 parts of carbamide, ammonium nitrate 30 parts, industrial monoammonium phosphate 10 parts, APP 80 parts, potassium dihydrogen phosphate 30 parts,
PTPP (potassium tripolyphosphate) 100 parts, 60 parts of potassium chloride, potassium formate 100 parts, EDTA chelated zinc 2 parts, EDTA chelated iron 1 part, EDTA Chelated Manganese
1 part, Borax 4 parts, seven water ammonium molybdate 0.1 part, ferrous sulfate heptahydrate 1 part, zinc sulfate monohydrate 2 parts, anhydrous cupric sulfate 1 part, water 420
Part.
Concrete production technology such as embodiment 1.
The product specification obtained is high nitrogen type 240-110-150g/L.
Embodiment 3
. the preparation of arbitrary proportioning fertilizer in the scope of the invention:
Prescription: 450 parts of carbamide, ammonium nitrate 50 parts, industrial monoammonium phosphate 35 parts, APP 50 parts, potassium dihydrogen phosphate 120 parts,
PTPP (potassium tripolyphosphate) 50 parts, 50 parts of potassium chloride, potassium formate 60 parts, EDTA chelated zinc 4 parts, EDTA chelated iron 3 parts, EDTA Chelated Manganese 3
Part, Borax 6 parts, seven water ammonium molybdate 1 part, ferrous sulfate heptahydrate 3 parts, zinc sulfate monohydrate 4 parts, anhydrous cupric sulfate 3 parts, 520 parts of water.
Concrete production technology such as embodiment 1.
The product specification obtained is high nitrogen type 240-130-130g/L.
Embodiment 4
The preparation of common fertilizer:
Prescription: 395 parts of carbamide, ammonium nitrate 70 parts, MAP 110 parts, potassium dihydrogen phosphate 35 parts, 80 parts of potassium chloride, potassium formate
85 parts, EDTA chelated zinc 3 parts, EDTA chelated iron 1.5 parts, EDTA Chelated Manganese 1.5 parts, Borax 6 parts, seven water ammonium molybdate 0.5 part, seven
Aqueous ferrous sulfate 1.5 parts, zinc sulfate monohydrate 3 parts, anhydrous cupric sulfate 1.5 parts, 500 parts of water.
Concrete production technology is with embodiment 1.
The product specification obtained is high nitrogen type 220-140-140g/L, containing trace element such as zinc, boron, manganese, ferrum, imitates without slow release
Really.
Embodiment 5
The preparation of common fertilizer:
Prescription: 390 parts of carbamide, ammonium nitrate 35 parts, industrial monoammonium phosphate 30 parts, APP 100 parts, potassium dihydrogen phosphate 40 parts,
PTPP (potassium tripolyphosphate) 120 parts, 63 parts of potassium chloride, potassium formate 48 parts, 500 parts of water.
Concrete production technology is with embodiment 1.
The product specification obtained is high nitrogen type 220-140-140g/L, without trace element such as zinc, boron, manganese, ferrum, without slow release
Effect.
Manure trial
Practice ground
Stanley (Dutch) modern agriculture Demonstration Garden is positioned at the south of a city, Linshu County, Linyi, Demonstration Garden area 2000 mu.
Test material and design
For examination soil nutrient content it is: organic 0.79%, alkali-hydrolyzable nitrogen 126mg/kg, rapid available phosphorus (P2O5) 12mg/kg, available potassium
(K2O) 145mg/kg.
For examination Herba Apii graveolentis kind it is: texts and pictures draw Herba Apii graveolentis.
The test of Water soluble fertilizer Herba Apii graveolentis booth sets 7 process altogether, and each process repeats for 3 times, and random district group arranges.Each duplicate packages
Include two furrow, every furrow 9.1m2(1.3m × 7m), every furrow plant 4 row, spacing in the rows 25cm, and mu plants 7500 strains.
Process 1(N1): blank, does not applies fertilizer.
Process 2(N2): habits fertilization, every mu of base is executed 14-6-10 compound organic and inorganic fertilizer 40 kilograms, is imposed sulfenyl in four times
Fertile (15-15-15), every mu of 5.5 kilograms/time.
Process 3(N3): 14-6-10 compound organic and inorganic fertilizer 40 kilograms executed by every mu of base, and embodiment 1 preparation is executed in punching in four times
Sustained release liquid of the present invention fertile (220-140-140), every mu 5L/ time.
Process 4(N4): 14-6-10 compound organic and inorganic fertilizer 40 kilograms executed by every mu of base, and embodiment 2 preparation is executed in punching in four times
Sustained release liquid of the present invention fertile (240-110-150), every mu 5L/ time.
Process 5(N5): 14-6-10 compound organic and inorganic fertilizer 40 kilograms executed by every mu of base, and embodiment 3 preparation is executed in punching in four times
Sustained release liquid of the present invention fertile (240-130-130), every mu 5L/ time.
Process 6(N6): 14-6-10 compound organic and inorganic fertilizer 40 kilograms executed by every mu of base, and embodiment 4 preparation is executed in punching in four times
Common fertilizer (220-140-140), every mu 5L/ time.
Process 7(N7): 14-6-10 compound organic and inorganic fertilizer 40 kilograms executed by every mu of base, and embodiment 5 preparation is executed in punching in four times
Common fertilizer (220-140-140), every mu 5L/ time.
Herba Apii graveolentis was transplanted on October 3rd, 2015, and on January 7th, 2016 gathers in the crops, and trophophase is 95 days, from November 1, often
Topdressing once every 15 days, fertilizing type is that punching is executed.Each process between other field management measures such as irrigation, weeding, the prevention and control of plant diseases, pest control
Unanimously.Measure each process plant height in the celery growth phase, during results, measure each process plant height, stem number and fresh weight respectively.
Measurement index and method
Herba Apii graveolentis plant height measures: measure the average plant height of each process, unit cm.
Result of the test and analysis
The impact on Herba Apii graveolentis plant height of table 1 different fertilization
As seen from Table 1, in the whole trophophase of Herba Apii graveolentis, all use the sustained release liquid of the present invention fertilizer of embodiment 1 preparation with N3
(220-140-140g/L) Herba Apii graveolentis plant height is the highest, and N4 uses the fertile (240-110-of sustained release liquid of the present invention of embodiment 2 preparation
150 g/L) and N5 use the sustained release liquid of the present invention fertile (240-130-130 g/L) of embodiment 3 preparation and take second place, be all remarkably higher than
N6 process, N7 process.When finally gathering in the crops, N3 processes plant height and is significantly higher than other process, uses the common of embodiment 4 preparation than N6
Fertilizer (220-140-140 g/L) processes high 3.1cm；High 11.5cm is processed than N2 conventional fertilizer application；Do not apply fertilizer than N1 blank
Process high 17.5cm；The common fertilizer (220-140-140 g/L) using embodiment 5 preparation than N7 processes high 2.9cm.
N3, N4, N5 process growing way plant height apparently higher than other process, illustrate the present invention rich in trace element high nitrogen type,
The fertilizer efficiency of long-acting slow-release liquid fertilizer is substantially good than prior art.
Other fruit and vegerable and crops are done manure trial, all achieves effect same or analogous with above manure trial.
Claims (4)
1. the long-acting slow-release liquid fertilizer rich in trace element, it is characterised in that raw material components weight portion is as follows: carbamide
200-500 part, ammonium nitrate 20-100 part, industrial monoammonium phosphate 1-80 part, APP 50-200 part, potassium dihydrogen phosphate 20-120
Part, PTPP (potassium tripolyphosphate) 80-200 part, potassium chloride 20-120 part, potassium formate 20-150 part, EDTA chelated zinc 1-6 part, EDTA chelating
Ferrum 1-6 part, EDTA Chelated Manganese 1-6 part, Borax 1-10 part, seven water ammonium molybdate 0.1-5 parts, ferrous sulfate heptahydrate 1-5 part, a water sulfur
Acid zinc 1-5 part, anhydrous cupric sulfate 1-5 part, water 400-600 part；
Above-mentioned raw materials is commercially available, wherein:
Described carbamide is small particle urea, nitrogenous >=46.4%；
Described ammonium nitrate is nitrogenous >=and 34%；
Described industrial monoammonium phosphate is nitrogenous >=and 12%, phosphorus pentoxide >=61%；
Described APP is nitrogenous >=and 24%, phosphorus pentoxide >=45%；
Described potassium dihydrogen phosphate contains phosphorus pentoxide >=52%, potassium oxide >=34%；
Described PTPP (potassium tripolyphosphate) contains phosphorus pentoxide >=47.4%, potassium oxide >=52.4%；
Described potassium chloride contains potassium oxide >=62%；
Described potassium formate contains potassium oxide >=56%；
Described EDTA Chelated Manganese contains manganese >=13%；
Described EDTA chelated zinc contains zinc >=15%；
Described EDTA chelated iron iron content >=13%；
Described Borax boracic >=10%；
Described seven water ammonium molybdates contain molybdenum >=54%；
Described ferrous sulfate heptahydrate iron content >=20；
Described zinc sulfate monohydrate contains zinc >=33.
2. as claimed in claim 1 rich in the long-acting slow-release liquid fertilizer of trace element, it is characterised in that raw material components weight
Part is as follows: carbamide 350-450 part, ammonium nitrate 30-50 part, industrial monoammonium phosphate 10-40 part, APP 80-120 part, phosphoric acid
Potassium dihydrogen 30-120 part, PTPP (potassium tripolyphosphate) 100-150 part, potassium chloride 50-70 part, potassium formate 40-60 part, EDTA chelated zinc 2-4
Part, EDTA chelated iron 1-3 part, EDTA Chelated Manganese 1-3 part, Borax 4-6 part, seven water ammonium molybdate 0.1-1 parts, ferrous sulfate heptahydrate 1-
3 parts, zinc sulfate monohydrate 2-4 part, anhydrous cupric sulfate 1-3 part, water 420-520 part.
3. as claimed in claim 2 rich in the long-acting slow-release liquid fertilizer of trace element, it is characterised in that raw material components weight
Part as follows: 390 parts of carbamide, ammonium nitrate 35 parts, industrial monoammonium phosphate 30 parts, APP 100 parts, potassium dihydrogen phosphate 40 parts, three
PA 800K 120 parts, 63 parts of potassium chloride, potassium formate 48 parts, EDTA chelated zinc 3 parts, EDTA chelated iron 1.5 parts, EDTA Chelated Manganese
1.5 parts, Borax 6 parts, seven water ammonium molybdate 0.5 part, ferrous sulfate heptahydrate 1.5 parts, zinc sulfate monohydrate 3 parts, anhydrous cupric sulfate 1.5
Part, 500 parts of water.
4. the long-acting slow-release liquid fertilizer rich in trace element as described in claim 1-3 is arbitrary, it is characterised in that by as follows
Preparation method prepares:
(1) by carbamide, ammonium nitrate, industrial monoammonium phosphate, APP, potassium dihydrogen phosphate, PTPP (potassium tripolyphosphate), potassium formate, chlorination
Potassium, water, after metering, are conveyed in agitator, stirring and dissolving；
(2) by EDTA chelated iron, EDTA Chelated Manganese, EDTA chelated zinc, Borax, seven water ammonium molybdates, zinc sulfate monohydrate, seven water sulphuric acid
After ferrous iron, anhydrous cupric sulfate are respectively through metering, send in agitator according to proportioning, use Double helix fan blade type stirring technique to enter
Row stirring, is sufficiently mixed at 85 DEG C；
(3) deliver to normal-pressure liquid packer after the liquid mixed is delivered to cooling bath cooling and carry out fill,.
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| CN109588219A (en) * | 2018-12-28 | 2019-04-09 | 广西壮族自治区林业科学研究院 | Different growing stages bamboo fertilizer npk nutrient precisely matches applying method |
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| CN111153734A (en) * | 2018-10-22 | 2020-05-15 | 夏逸雨 | Alkaline fertilizer with chelating slow-release synergism and soil improvement effects and preparation method thereof |
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