CN103664359B - High-phosphorus high-zinc liquid compound fertilizer and preparation method thereof - Google Patents
High-phosphorus high-zinc liquid compound fertilizer and preparation method thereof Download PDFInfo
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- CN103664359B CN103664359B CN201310610909.4A CN201310610909A CN103664359B CN 103664359 B CN103664359 B CN 103664359B CN 201310610909 A CN201310610909 A CN 201310610909A CN 103664359 B CN103664359 B CN 103664359B
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Abstract
The invention discloses a high-phosphorus high-zinc liquid compound fertilizer and a preparation method thereof. The compound fertilizer comprises the following raw materials in parts by weight: 0.8-1.2 parts of disodium octoborate tetrahydrate, 0.7-1.1 parts of EDTA-Mn, 8-12 parts of zinc fertilizer, 0.6-1 part of magnesium fertilizer, 40-46 parts of phosphate, 5-7 parts of urea, 0.8-1.2 parts of ammonium nitrate, 1.5-2.5 parts of urea phosphate, 1.5-2.5 parts of ammonium polyphosphate, 4-6 parts of potassium hydroxide, 1.5-2.5 parts of potassium chloride, 1.5-2.5 parts of a cosolvent and 20-30 parts of water. The compound fertilizer is a three-element liquid fertilizer containing trace elements, is high in overall nutrient content, stable in physical and chemical shape, and free from the phenomena of crystallization, precipitation and layering under the high-temperature, low-temperature and ordinary temperature conditions, can obviously improve the fertilization efficiency, and meanwhile avoids the zinc deficiency symptoms of plants.
Description
Technical field
The invention belongs to technical field of fertilizer production, be specifically related to a large amount of of a kind of farm crop application and secondary and micro-element fertilizers, especially a kind of compound fertilizer and preparation method thereof.
Background technology
Along with the continuous promotion and application of the Integration of Water into Fertilizer, liquid fertilizer starts to popularize gradually in China.At present, the liquid fertilizer of China is also in the research of preliminary study stage, particularly high density, high compound liquid fertilizer, is blank at home substantially.Liquid fertilizer, because of its advantage such as instant, even, is the first-selected fertilizer of irrigation equipment fertilising.Due to its i.e. property used, without the need to stirring and dissolving, be applicable to very much automatization fertilising.In the country that irrigation technique and automatization fertilising are popularized, liquid fertilizer is widely used.
In order to the nutrient allowing Crop arrive balance, the various a large amount of and Meso-and micro-nutrients needed for plant-growth can be added in general liquid compound fertilizer, as nitrogen, phosphorus, potassium, calcium, magnesium, sulphur, zinc, boron etc.But in the liquid phase of liquid fertilizer, phosphorus is easy to and the metal ion generation precipitin reaction such as zinc, calcium, magnesium, forms a large amount of water-insolubles, causes the nutrient availability of phosphorus and metal ion significantly to reduce, thus reduce the plant recovery of nutrient of fertilizer.And the precipitation of these indissolubles is easy to strainer and the water dropper of clogging drip irrigation system, results in greater loss.At present, in fertiliser production general by chelating technology by metal ion-chelants such as the sequestrants such as EDTA and zinc, calcium, magnesium, and then by chelated metal ions and phosphorous higher fertilizer liquid phase mixture, avoid metal ion to be directly combined with phosphate anion and produce and precipitate.But the cost of this technology is higher, the price of general chelated metal ions is several times even tens times of plain metal ion.And owing to the addition of sequestrant in chelated metal ions, the content of its metal ion is obviously declined, be the content being difficult to improve metal ion utilizing chelated metal ions and phosphorous fertilizer liquid phase mixture.
Zinc is the one trace element generally lacked in soil, during plant zinc deficiency, plant is short and small, and the tissue differentiation of leaf is obstructed, and hyperplasia, when a lot of plant seedlings lacks zinc, can occur " little leaf disease ", sometimes in the shape that clusters, chlorosis yellow between blade arteries and veins, there is brown spot, and be expanded into tan necrotic spot gradually.Therefore, if zinc nutrition element can not be supplemented in time on the soil of scarce zinc, the yield and quality of crop can be had a strong impact on.But in the liquid fertilizer of high phosphorus, zinc is easy to the precipitation producing indissoluble with phosphorus.So during liquid fertilizer is at home produced, the liquid composite fertilizer that phosphorous and zinc is higher is blank substantially simultaneously.Therefore, develop phosphorus, Zn content is higher and nutritive element is complete liquid fertilizer has important Social and economic benef@.
Summary of the invention
The object of the invention is in high phosphorus liquid fertilizer, easily to produce to overcome zinc in prior art the technological deficiency that indissoluble precipitates with phosphorus, a kind of compound fertilizer is provided, coordinate the medium trace element such as nitrogen, potassium and magnesium, boron, manganese simultaneously, can effectively prevent it from the symptom of zinc occurring to lack while meeting crop growth needs.
Another object of the present invention is to provide a kind of preparation method of compound fertilizer.
Object of the present invention is achieved by the following technical programs:
A kind of compound fertilizer, comprises each component of following parts by weight: 0.8 ~ 1.2 part of four water eight Sodium Tetraborate, 0.7 ~ 1.1 part of EDTA-Mn, 8 ~ 12 parts of zinc fertilizers, 0.6 ~ 1 part of fertiliser containing magnesium, 40 ~ 46 parts of phosphoric acid, 5 ~ 7 parts of urea, 0.8 ~ 1.2 part of ammonium nitrate, 1.5 ~ 2.5 parts of Ureaphils, 1.5 ~ 2.5 parts of ammonium polyphosphates, 4 ~ 6 parts of potassium hydroxide, 1.5 ~ 2.5 parts of Repone K, 1.5 ~ 2.5 parts of solubility promoters and 20 ~ 30 parts of water.
Described zinc fertilizer is one or more in zinc oxide, zinc sulfate, zinc chloride, EDTA-Zn or zinc nitrate.
Described fertiliser containing magnesium is one or more in magnesium oxide, magnesium sulfate, magnesium chloride or magnesium nitrate.
Described potassium hydroxide can partly use salt of wormwood, potassium primary phosphate or dipotassium hydrogen phosphate to replace.
Described solubility promoter is one or more in benzaminic acid, sodium salicylate, Sodium dodecylbenzene sulfonate, glycerine, dodecyldimethylamine base tertiary amine, glycol ether or diethylene glycol monoethyl ether.
Preferably, described compound manure comprises each component of following parts by weight: 0.8 ~ 1.2 part of four water eight Sodium Tetraborate, 0.7 ~ 1.1 part of EDTA-Mn, 8 ~ 12 parts of zinc oxide, 0.6 ~ 1 part of magnesium oxide, 40 ~ 46 parts of phosphoric acid, 5 ~ 7 parts of urea, 0.8 ~ 1.2 part of ammonium nitrate, 1.5 ~ 2.5 parts of Ureaphils, 1.5 ~ 2.5 parts of ammonium polyphosphates, 4 ~ 6 parts of potassium hydroxide, 1.5 ~ 2.5 parts of Repone K, 1.5 ~ 2.5 parts of solubility promoters and 20 ~ 30 parts of water.
More preferably, described compound manure comprises each component of following parts by weight: 1 part of four water eight Sodium Tetraborate, 0.8 part of EDTA-Mn, 10 parts of zinc oxide, 0.7 part of magnesium oxide, 43 parts of phosphoric acid, 6 parts of urea, 1 part of ammonium nitrate, 2 parts of Ureaphils, 2 parts of ammonium polyphosphates, 5 parts of potassium hydroxide, 2 parts of Repone K, 2 parts of solubility promoters and 24.5 parts of water.Phosphate source of the present invention can with phosphoric acid by wet process or thermal phosphoric acid.
The preparation method of compound fertilizer described above, comprises the steps:
S1. compound manure formula obtains mother liquor after water-soluble to four water eight Sodium Tetraboratees, EDTA-Mn and urea as described above;
S2. in mother liquor, add zinc fertilizer, limit edged is stirred to and forms slimy suspension;
S3. in suspension, add phosphoric acid, stir at 75 ~ 85 DEG C of following edgeds of condition the fluid forming thickness clarification;
S4. under 50 ~ 60 DEG C of conditions, in fluid, add ammonium nitrate, Ureaphil and ammonium polyphosphate fast respectively in order, be stirred to the fluid forming clear;
S5. add in the fluid of S4 by fertiliser containing magnesium, limit edged stirs, and allows the temperature of fluid naturally reduce;
S6. after the temperature of fluid is reduced to room temperature in S5, slowly add potassium hydroxide, limit edged stirs, and keeps temperature of reaction to be 70 ~ 80 DEG C;
S7. keep temperature of reaction in S6 50 ~ 60 DEG C time, slowly to add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature and namely obtains compound manure after mixing.
By the exploration discovery of contriver, described in step S2, churning time is preferably 20 ~ 25min; Churning time described in step S3 is 10 ~ 15min; Churning time described in step S4 is 10 ~ 15 minutes; The churning time of step S5 is 20 ~ 25min; The churning time of step S6 is 15 ~ 20min; The churning time of step S7 is 20 ~ 25 minutes.
In above-mentioned steps S3, the speed of adding phosphoric acid must be controlled, keep temperature of reaction to be 75 ~ 85 DEG C, limit edged stirs, because when adding phosphoric acid, can there is violent thermopositive reaction with the suspension in S2 in phosphoric acid, the activity that all can affect metal ion in liquid phase too high or too low for temperature.
In above-mentioned steps S6, must wait the temperature in step S5 drop to room temperature completely after add potassium hydroxide again, and control the speed of adding potassium hydroxide, temperature of reaction is kept to be 70 ~ 80 DEG C, limit edged stirs, because when adding potassium hydroxide, potassium hydroxide can with the phosphoric acid in liquid phase, Ureaphil generation thermopositive reaction, too high or too low for temperaturely all can affect phosphorus and zinc stability in the liquid phase.
The present invention is dissolved in liquid with can making phosphorus and zinc Simultaneous Stabilization by the control of the technique of particular order and special reaction condition, avoids the precipitation producing the indissolubles such as zinc phosphate.Particularly, the present invention is by zinc oxide direct hydrolysis in acid condition, zinc phosphate complex body is generated with high concentration phosphorus acid-respons, be dissolved in liquid with making phosphorus and zinc Simultaneous Stabilization, avoid the precipitation producing the indissolubles such as zinc phosphate, instant invention overcomes zinc in prior art and easily in high phosphorus liquid fertilizer, produce with phosphorus the technological deficiency that indissoluble precipitates, cost is high, metal ion content is low.
Compound fertilizer of the present invention can need according to crop different growing the growth regulator adding dissimilar and concentration, described compound fertilizer also can be used in combination with the organic raw material such as xanthohumic acid, Ulmic acids or ulmic acid, improves the utilization ratio of fertilizer nutrient.
The using method of compound fertilizer of the present invention is: when pouring is executed, crops seedling stage dilution 200 ~ 300 times, dilute 100 ~ 200 times At All Other Times, directly drench in crop root, determine that number of times is executed in pouring according to the breeding time of crop, the timed interval is 10 ~ 15 days, and vegetables suitably can increase application times, and fruit tree suitably can strengthen amount of application; When spraying, vegetables and field crop dilution 800 ~ 1000 times, fruit tree dilution 500 ~ 800 times, be sprayed on blade surface, pros and cons all will spray, and is sprayed onto till blade just drips; When being used by drip irrigation, seedling stage, concentration was 200 ~ 300 times, middle and later periods is 100 ~ 200 times, generally within every 7 ~ 10 days, can drip executes once, during drip irrigation, must get hold of fertilization time, the crop that root system is more shallow, fertilization time must control within 30 minutes, the crop that root system is dark, and fertilization time controlled at 1 ~ 1.5 hour.
Compared with prior art, the present invention has following beneficial effect:
(1) compound fertilizer total nutrient content of the present invention is high, physics and chemistry dimensionally stable, the phenomenon such as nodeless mesh, precipitation, layering under high temperature, low temperature and normal temperature condition.
(2) compound fertilizer of the present invention belongs to clear liquid type liquid fertilizer, can foliage-spray, drench and execute, also may be used for sprinkling irrigation and drip irrigation system, easy to use, have save time, saving of labor, the advantage such as province is fertile, fertilizer efficiency is fast.
(3) phosphorus in compound fertilizer of the present invention and Zn content higher, providing acidic conditions by adding phosphoric acid, being dissolved in liquid with making phosphorus and zinc Simultaneous Stabilization, avoid the precipitation producing the indissolubles such as zinc phosphate.
(4) good fluidity of the present invention, and nutrient is highly enriched, is applicable to the automatization fertilising operation that area is larger, can significantly improves fertilising efficiency.
(5) the invention provides the ternary liquid fertilizer containing medium trace element, nutritive element is comprehensive, for crop provides grow required macroelement and medium trace element simultaneously, wherein the feature of high phosphorus height zinc of the present invention can promote crop root growth, Accelerate bloom, effectively can prevent the zinc deficiency symptom of crop simultaneously.
(6) N+P in liquid fertilizer provided by the invention
2o
5+ K
2o>500g/L, Zn>100g/L, Mg+B+Mn>5g/L, nutrient content wherein both can reach " macroelement water-soluble fertilizer (microelement type) liquid " product quality indicator of People's Republic of China's agricultural industry criteria (NY/T1973-2010), " trace element water-soluble fertilizer liquid " product quality indicator can be reached again, for fertilizer output enterprise provides splendid convenience at the flexible production and selling of liquid fertilizer.
Figure of description
Fig. 1 is for spraying tribute mandarin orange aspect graph before compound fertilizer provided by the invention, and the tribute mandarin orange blade lacking zinc has jaundice spot, and young leaves can not normally launch, and blade is less than normal, in tufted;
Fig. 2 is for spraying tribute mandarin orange aspect graph after compound fertilizer provided by the invention, tribute mandarin orange leaf dark green, and young leaves can normally launch, and leaf area obviously increases.
Embodiment
Below in conjunction with Figure of description and specific embodiment the present invention made and elaborating further, but embodiment does not limit in any form the present invention.
Embodiment 1
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, urea water-soluble stirring 10min, the mother liquor of clear is obtained;
S2. zinc oxide is slowly added the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added the suspension in S2, limit edged stirs, and keeps stable reaction at 80 DEG C, forms the fluid of thickness clarification after 10min;
S4. keep reacting the temperature of generation at 55 DEG C in S3, add ammonium nitrate, Ureaphil and ammonium polyphosphate fast respectively in order, stir 10min, form the fluid of clear;
S5. magnesium oxide is slowly added the fluid of the clear in S4, limit edged stirs, the relief fluid naturally cooling of 25min;
S6. after the fluid in S5 is cooled to room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 DEG C, stirs 20min;
S7. keep reacting the temperature of generation at 60 DEG C in S6, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 20min, finished product sealing is filled in the liquid storing barrel of 30L.
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 2
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, urea water-soluble stirring 12min, the mother liquor of clear is obtained;
S2. zinc oxide is slowly added the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added the suspension in S2, limit edged stirs, and keeps stable reaction at 85 DEG C, forms the fluid of thickness clarification after 15min;
S4. keep reacting the temperature of generation at 60 DEG C in S3, add Ureaphil, ammonium nitrate and ammonium polyphosphate fast respectively in order, stir 10min, form the fluid of clear;
S5. magnesium oxide is slowly added the fluid of the clear in S4, limit edged stirs, the relief fluid naturally cooling of 20min;
S6. after the fluid in S5 is cooled to room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps being stabilized in 75 DEG C, stirs 15min;
S7. keep reacting the temperature of generation at 55 DEG C in S6, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 20min, finished product sealing is filled in the liquid storing barrel of 30L.
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 3
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, urea water-soluble stirring 15min, the mother liquor of clear is obtained;
S2. zinc oxide is slowly added the mother liquor in S1, limit edged stirs, and forms slimy suspension after 25min;
S3. phosphoric acid is slowly added the suspension in S2, limit edged stirs, and keeps stable reaction at 75 DEG C, forms the fluid of thickness clarification after 10min;
S4. keep reacting the temperature of generation at 50 DEG C in S3, add ammonium polyphosphate, Ureaphil and ammonium nitrate fast respectively in order, stir 15min, form the fluid of clear;
S5. magnesium oxide is slowly added the fluid of the clear in S4, limit edged stirs, the relief fluid naturally cooling of 23min;
S6. after the fluid in S5 naturally cools to room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps being stabilized in 70 DEG C, stirs 17min;
S7. keep reacting the temperature of generation at 50 DEG C in S6, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 25min, finished product sealing is filled in the liquid storing barrel of 30L.
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 4
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer is with embodiment 3
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 5
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer is with embodiment 2
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 6
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, urea water-soluble stirring 10min, the mother liquor of clear is obtained;
S2. zinc oxide is slowly added the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. monoammonium phosphate is slowly added the suspension in S2, limit edged stirs, and keeps stable reaction at 80 DEG C, forms the fluid of thickness clarification after 10min;
S4. keep reacting the temperature of generation at 55 DEG C in S3, add ammonium nitrate, Ureaphil and ammonium polyphosphate fast respectively in order, stir 10min, form the fluid of clear;
S5. magnesium oxide is slowly added the fluid of the clear in S4, limit edged stirs, the relief fluid naturally cooling of 25min;
S6. after the fluid in S5 is cooled to room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps being stabilized in 80 DEG C, stirs 20min;
S7. keep reacting the temperature of generation at 60 DEG C in S6, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 20min, finished product sealing is filled in the liquid storing barrel of 30L.
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 7
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, urea water-soluble stirring 10min, the mother liquor of clear is obtained;
S2. zinc oxide and zinc chloride are slowly added the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added the suspension in S2, limit edged stirs, and keeps stable reaction at 80 DEG C, forms the fluid of thickness clarification after 10min;
S4. keep reacting the temperature of generation at 55 DEG C in S3, add ammonium nitrate, Ureaphil and ammonium polyphosphate fast respectively in order, stir 10min, form the fluid of clear;
S5. magnesium oxide and magnesium sulfate are slowly added the fluid of the clear in S4, limit edged stirs, the relief fluid naturally cooling of 25min;
S6. after the fluid in S5 is cooled to room temperature, slowly add potassium hydroxide and Repone K, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 DEG C, stirs 20min;
S7. keep reacting the temperature of generation at 60 DEG C in S6, slowly add Repone K and glycerine, limit edged stirs, and is cooled to room temperature after 20min, finished product sealing is filled in the liquid storing barrel of 30L.
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 8
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, urea water-soluble stirring 10min, the mother liquor of clear is obtained;
S2. zinc oxide and zinc nitrate are slowly added the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added the suspension in S2, limit edged stirs, and keeps stable reaction at 80 DEG C, forms the fluid of thickness clarification after 10min;
S4. keep reacting the temperature of generation at 55 DEG C in S3, add ammonium nitrate, Ureaphil and ammonium polyphosphate fast respectively in order, stir 10min, form the fluid of clear;
S5. magnesium oxide and magnesium chloride are slowly added the fluid of the clear in S4, limit edged stirs, the relief fluid naturally cooling of 25min;
S6. after the fluid in S5 is cooled to room temperature, slowly add potassium hydroxide and dipotassium hydrogen phosphate, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 DEG C, stirs 20min;
S7. keep reacting the temperature of generation at 60 DEG C in S6, slowly add Repone K, dodecyldimethylamine base tertiary amine and glycol ether, limit edged stirs, and is cooled to room temperature after 20min, finished product sealing is filled in the liquid storing barrel of 30L.
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
Embodiment 9
Compound fertilizer described in the present embodiment is containing, for example each component of lower parts by weight:
The concrete preparation method of described compound fertilizer comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, urea water-soluble stirring 10min, the mother liquor of clear is obtained;
S2. zinc oxide and zinc sulfate are slowly added the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added the suspension in S2, limit edged stirs, and keeps stable reaction at 80 DEG C, forms the fluid of thickness clarification after 10min;
S4. keep reacting the temperature of generation at 55 DEG C in S3, add ammonium nitrate, Ureaphil and ammonium polyphosphate fast respectively in order, stir 10min, form the fluid of clear;
S5. magnesium oxide and magnesium nitrate are slowly added the fluid of the clear in S4, limit edged stirs, the relief fluid naturally cooling of 25min;
S6. after the fluid in S5 is cooled to room temperature, slowly add potassium hydroxide and potassium primary phosphate, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 DEG C, stirs 20min;
S7. keep reacting the temperature of generation at 60 DEG C in S6, slowly add Repone K and benzaminic acid, sodium salicylate, Sodium dodecylbenzene sulfonate, limit edged stirs, and is cooled to room temperature after 20min, finished product sealing is filled in the liquid storing barrel of 30L.
Adopt People's Republic of China's agricultural industry criteria (NY/T1973-2010) to measure the comprehensive content's index of fertilizer, be shown in Table 1.
The performance test of embodiment 10 compound fertilizer of the present invention
The compound fertilizer that described in the embodiment of the present invention 1 ~ 9, method prepares makes the phosphorus of high-content and zinc be present in the liquid phase of liquid fertilizer simultaneously, and formation total nutrient content is high, medium trace element is complete, the organic liquid fertilizer of good fluidity.People's Republic of China's agricultural industry criteria (NY/T1973-2010) is adopted to record the content's index of fertilizer in table 1 and table 2.
Table 1 suspension fertilizer quality index
Table 2 suspension fertilizer quality index
From table 1 and table 2 result: the present invention is by substituting traditional phosphate fertilizer (monoammonium phosphate) with phosphoric acid, in the temperature adding speed and reaction by strict control phosphoric acid, effectively can prevent the zinc element of the high-content in fertilizer and phosphatase reaction from forming precipitation, reduce the effective content of zinc in liquid fertilizer.
The application test of embodiment 8 compound fertilizer of the present invention
(1) spraying test
Test site: Yangxin County, Yangjiang city one Xiang fruit field
Test period: in December ,-2011 in February, 2011
Trial crops: tribute mandarin orange
Test soil: latosol
Testing program: compound fertilizer sample of the present invention and comparative example two process are chosen in this test.The oranges and tangerines dedicated liquid fertilizer (fertile containing humic acid water-soluble) that comparative example adopts Lv Xing bio tech ltd, Guangdong to produce, N+P
2o
5+ K
2o>=200g/L, humic acids>=40g/L.Compound fertilizer of the present invention arranges 5 process, be numbered the compound fertilizer that process 1(adopts the embodiment of the present invention 1 to prepare respectively), the compound fertilizer that process 2(adopts the embodiment of the present invention 2 to prepare), the compound fertilizer that process 3(adopts the embodiment of the present invention 3 to prepare), the compound fertilizer that process 4(adopts the embodiment of the present invention 4 to prepare), the compound fertilizer that process 5(adopts the embodiment of the present invention 5 to prepare).Each process liquid fertilizer respectively sprayed once respectively on February 10th, 2011, on February 20th, 2011, on March 12nd, 2011, on April 1st, 2011, on May 1st, 2011, and spraying concentration is 500 times.Comparative example sprays with same spraying concentration and time.Test-results is as shown in table 3.
Table 3 liquid fertilizer of the present invention and commercially available oranges and tangerines special fertilizer comparative result
Result shows, compares with comparative example, sprays the output that compound fertilizer of the present invention adds tribute mandarin orange all to a certain extent.Wherein the effect of increasing production of embodiment 1 is the most remarkable, and single plant yield increases 16.1kg compared with comparative example, and stimulation ratio is 28.7%.Meanwhile, spray the single fruit weight that compound fertilizer of the present invention also significantly improves tribute mandarin orange, embodiment 1,2,3,4,5 single fruit weight respectively higher than comparative example by 23.3%, 26.6%, 15.6%, 16.7%, 20.6%.Visible, compound fertilizer provided by the invention facilitates the absorption of tribute mandarin orange fruit growth and mineral nutrient, improves percentage of fertile fruit and the single fruit weight of tribute mandarin orange, thus improves the yield and quality of tribute mandarin orange.
In addition, compound fertilizer provided by the invention obviously can alleviate the symptom that tribute mandarin orange lacks zinc, effectively prevents the generation of tribute mandarin orange " little leaf disease ".As shown in Figure 1, before spraying compound fertilizer provided by the invention, the tribute mandarin orange blade lacking zinc has jaundice spot, and young leaves can not normally launch, and blade is less than normal, in tufted, as shown in Figure 2, after spraying compound fertilizer provided by the invention, tribute mandarin orange leaf dark green, and young leaves can normally launch, leaf area obviously increases.
(2) test is executed in pouring
Test site: Sha Tou village, rock patch town, Guangzhou, Guangdong Zengcheng City
Test period: in December ,-2011 in September, 2011
Trial crops: Plantula Brassicae chinensis
Test soil: silty loam
Testing program: high phosphorus height zinc liquid composite fertilizer sample of the present invention and comparative example two process are chosen in this test.The Plantula Brassicae chinensis dedicated liquid fertilizer (macroelement Water soluble fertilizer) that comparative example adopts Lv Xing bio tech ltd, Guangdong to produce, N+P
2o
5+ K
2o>=500g/L, B+Zn>=5g/L.Compound fertilizer of the present invention arranges 5 process, be numbered the compound fertilizer that process 1(adopts the embodiment of the present invention 1 to prepare respectively), the compound fertilizer that process 2(adopts the embodiment of the present invention 2 to prepare), the compound fertilizer that process 3(adopts the embodiment of the present invention 3 to prepare), the compound fertilizer that process 4(adopts the embodiment of the present invention 4 to prepare), the compound fertilizer that process 5(adopts the embodiment of the present invention 5 to prepare).In sowing on September 6th, 2011, final singling on September 28, mu plants 30,000 strains.November 8 gathered in the crops.Each process liquid fertilizer is executed once respectively at October 5, October 15, a pouring on October 25, and it is 250 times that concentration is executed in the pouring on October 5, and it is 150 times that concentration is executed in the pouring in October 15 and October 25.Comparative example is carried out pouring with same application concentration and time and is executed.Test-results is as shown in table 4.
Table 4 liquid fertilizer of the present invention and commercially available Plantula Brassicae chinensis special fertilizer comparative result
Result shows, compares with comparative example, drenches and executes the output that compound fertilizer of the present invention adds Plantula Brassicae chinensis all to a certain extent.Wherein the effect of increasing production of embodiment 1 is the most remarkable, and every per mu yield increases 190.7kg, and stimulation ratio is 15.0%.Meanwhile, drench and execute the plant height that compound fertilizer of the present invention also significantly improves Plantula Brassicae chinensis, the plant height of embodiment 1,2,3,4,5 respectively higher than comparative example by 20.8%, 18.0%, 18.5%, 19.7%, 11.2%.Therefore, high phosphorus height zinc liquid composite fertilizer provided by the invention facilitates the growth of Plantula Brassicae chinensis and the absorption of mineral nutrient, improves the yield and quality of Plantula Brassicae chinensis.Meanwhile, liquid composite fertilizer provided by the invention obviously can promote the root growth in Plantula Brassicae chinensis seedling stage, thus improves the speed of growth of plant.
Claims (2)
1. a compound fertilizer, it is characterized in that, comprise each component of following parts by weight: 0.8 ~ 1.2 part of four water eight Sodium Tetraborate, 0.7 ~ 1.1 part of EDTA-Mn, 8 ~ 12 parts of zinc fertilizers, 0.6 ~ 1 part of fertiliser containing magnesium, 40 ~ 46 parts of phosphoric acid, 5 ~ 7 parts of urea, 0.8 ~ 1.2 part of ammonium nitrate, 1.5 ~ 2.5 parts of Ureaphils, 1.5 ~ 2.5 parts of ammonium polyphosphates, 4 ~ 6 parts of potassium hydroxide, 1.5 ~ 2.5 parts of Repone K, 1.5 ~ 2.5 parts of solubility promoters and 20 ~ 30 parts of water;
The preparation method of described compound fertilizer, comprises the steps:
S1. after water-soluble to four water eight Sodium Tetraboratees, EDTA-Mn and urea, mother liquor is obtained by described compound manure formula;
S2. in mother liquor, add zinc fertilizer, limit edged is stirred to and forms slimy suspension;
S3. in suspension, add phosphoric acid, stir at 75 ~ 85 DEG C of following edgeds of condition the fluid forming thickness clarification;
S4. under 50 ~ 60 DEG C of conditions, in fluid, add ammonium nitrate, Ureaphil and ammonium polyphosphate fast respectively in order, be stirred to the fluid forming clear;
S5. add in the fluid of S4 by fertiliser containing magnesium, limit edged stirs, and allows the temperature of fluid naturally reduce;
S6. after the temperature of fluid is reduced to room temperature in S5, slowly add potassium hydroxide, keep temperature of reaction to be 70 ~ 80 DEG C;
S7. temperature of reaction in S6 is kept 50 ~ 60 DEG C time, slowly to add Repone K and solubility promoter, be cooled to room temperature after mixing and namely obtain compound manure.
2. compound manure according to claim 1, is characterized in that, described zinc fertilizer is one or more in zinc oxide, zinc sulfate, zinc chloride, EDTA-Zn or zinc nitrate.
3. compound manure according to claim 1, is characterized in that, described fertiliser containing magnesium is one or more in magnesium oxide, magnesium sulfate, magnesium chloride or magnesium nitrate.
4. compound manure according to claim 1, it is characterized in that, described potassium hydroxide can partly use salt of wormwood, potassium primary phosphate or dipotassium hydrogen phosphate to replace.
5. compound manure according to claim 1, is characterized in that, described solubility promoter is one or more in benzaminic acid, sodium salicylate, Sodium dodecylbenzene sulfonate, glycerine, dodecyldimethylamine base tertiary amine, glycol ether or diethylene glycol monoethyl ether.
6. compound manure according to any one of claim 1 to 5, it is characterized in that, described compound manure comprises each component of following parts by weight: 0.8 ~ 1.2 part of four water eight Sodium Tetraborate, 0.7 ~ 1.1 part of EDTA-Mn, 8 ~ 12 parts of zinc oxide, 0.6 ~ 1 part of magnesium oxide, 40 ~ 46 parts of phosphoric acid, 5 ~ 7 parts of urea, 0.8 ~ 1.2 part of ammonium nitrate, 1.5 ~ 2.5 parts of Ureaphils, 1.5 ~ 2.5 parts of ammonium polyphosphates, 4 ~ 6 parts of potassium hydroxide, 1.5 ~ 2.5 parts of Repone K, 1.5 ~ 2.5 parts of solubility promoters and 20 ~ 30 parts of water.
7. compound manure according to claim 6, it is characterized in that, described compound manure comprises each component of following parts by weight: 1 part of four water eight Sodium Tetraborate, 0.8 part of EDTA-Mn, 10 parts of zinc oxide, 0.7 part of magnesium oxide, 43 parts of phosphoric acid, 6 parts of urea, 1 part of ammonium nitrate, 2 parts of Ureaphils, 2 parts of ammonium polyphosphates, 5 parts of potassium hydroxide, 2 parts of Repone K, 2 parts of solubility promoters and 24.5 parts of water.
8. the using method of compound manure according to any one of claims 1 ~ 7, is characterized in that, described compound manure is used for that pouring is executed, drip irrigation or spray.
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| CN104311236B (en) * | 2014-09-28 | 2016-04-13 | 成都新柯力化工科技有限公司 | A kind of Water soluble fertilizer additive and its preparation method and application |
| CN104446761A (en) * | 2014-11-13 | 2015-03-25 | 广州一翔农业技术有限公司 | High-phosphorus high-potassium liquid compound fertilizer as well as preparation method and application method thereof |
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| CN108707003A (en) * | 2018-08-07 | 2018-10-26 | 国家林业局桉树研究开发中心 | A kind of fruitlet print adds the dedicated fertilizer and preparation method thereof of fruit |
| CN113683448B (en) * | 2021-03-31 | 2023-06-02 | 郑州郑氏化工产品有限公司 | Clear-liquid type amino acid-containing high-phosphorus macroelement water-soluble fertilizer and preparation method thereof |
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