CN103664359A - 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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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 fertilizer production technology field, be specifically related to a kind of a large amount of and secondary and micro-element fertilizers of farm crop application, high zinc liquid composite fertilizer of especially a kind of high phosphorus 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 the research in preliminary study stage, particularly high density, high compound liquid fertilizer also, 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 stirring and dissolving, be applicable to very much automatization fertilising.In irrigation technique and the automatization universal country of applying fertilizer, liquid fertilizer is widely used.
In order to allow Crop arrive the nutrient of balance, in general liquid compound fertilizer, can add the required various a large amount of and Meso-and micro-nutrients of plant-growth, 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, thereby has reduced 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, result in greater loss.At present, in fertiliser production generally by chelating technology by metal ion-chelants such as the sequestrants such as EDTA and zinc, calcium, magnesium, and then chelated metal ions and phosphorous higher fertilizer liquid phase are mixed, avoid metal ion to be directly combined with phosphate anion and produce precipitation.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 having added sequestrant in chelated metal ions, the content of its metal ion is obviously declined, utilizing chelated metal ions and phosphorous fertilizer liquid phase to be mixed, be the content that is difficult to improve metal ion.
Zinc is a kind of trace element generally lacking 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 lack zinc, can occur " little leaf disease ", sometimes be the shape that clusters, chlorosis yellow between blade arteries and veins, there is brown spot, and be expanded into gradually tan necrotic spot.Therefore,, if zinc nutrition element can not be supplemented in time on the soil that lacks zinc, can have a strong impact on the yield and quality of crop.But in the liquid fertilizer of high phosphorus, zinc is easy to produce with phosphorus the precipitation of indissoluble.So during liquid fertilizer is at home produced, the phosphorous and higher liquid composite fertilizer of zinc is blank substantially simultaneously.Therefore, exploitation phosphorus, zinc content is higher and nutritive element is complete liquid fertilizer have important society and economic benefit.
Summary of the invention
The object of the invention is easily in high phosphorus liquid fertilizer, to produce the technological deficiency of indissoluble precipitation with phosphorus in order to overcome zinc in prior art, provide a kind of high phosphorus high zinc liquid composite fertilizer, coordinate trace element in nitrogen, potassium and magnesium, boron, manganese etc. simultaneously, when meeting crop growth needs, can effectively prevent that it from the symptom of zinc occurring to lack.
Another object of the present invention is to provide the preparation method of the high zinc liquid composite fertilizer of a kind of high phosphorus.
Object of the present invention is achieved by the following technical programs:
The high zinc liquid composite fertilizer of high phosphorus, comprises each components 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, tetradecyl dimethyl 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.Phosphoric acid of the present invention source can be with phosphoric acid by wet process or thermal phosphoric acid.
The preparation method of the high zinc liquid composite fertilizer of high phosphorus, comprises the steps: as mentioned above
S1. after four water eight Sodium Tetraboratees, EDTA-Mn and urea is water-soluble by compound manure formula as mentioned above, obtain mother liquor;
S2. in mother liquor, add zinc fertilizer, limit edged is stirred to and forms slimy suspension;
S3. in suspension, add phosphoric acid, at 75～85 ℃ of following edgeds of condition, stir the fluid that forms thickness clarification;
S4. under 50～60 ℃ of conditions, in fluid, add fast respectively in order ammonium nitrate, Ureaphil and ammonium polyphosphate, be stirred to the fluid that forms clear;
S5. fertiliser containing magnesium is added in the fluid of S4, limit edged stirs, and allows the temperature of fluid naturally reduce;
S6. the temperature until fluid in S5 is reduced to after room temperature, slowly adds potassium hydroxide, and limit edged stirs, and keeping temperature of reaction is 70～80 ℃;
S7. keep temperature of reaction in S6 in the time of 50～60 ℃, slowly to add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature and obtains compound manure after mixing.
By contriver's exploration discovery, 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, must control the speed of adding phosphoric acid, keeping temperature of reaction is 75～85 ℃, limit edged stirs, because when adding phosphoric acid, phosphoric acid can with S2 in suspension there is violent thermopositive reaction, 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 temperature in step S5 to add again potassium hydroxide after dropping to room temperature completely, and control the speed of adding potassium hydroxide, keeping temperature of reaction is 70～80 ℃, limit edged stirs, because when adding potassium hydroxide, potassium hydroxide can with liquid phase in phosphoric acid, Ureaphil generation thermopositive reaction, phosphorus and the zinc stability in liquid phase that all can affect too high or too low for temperature.
The control of the present invention by the technique of particular order and special reaction condition can make phosphorus and zinc Simultaneous Stabilization and be dissolved in liquid, avoids producing the precipitation of the indissolubles such as zinc phosphate.Particularly, the present invention is by zinc oxide direct hydrolysis under acidic conditions, generate zinc phosphate complex body with high concentration phosphorus acid-respons, making phosphorus and zinc Simultaneous Stabilization is dissolved in liquid, avoid producing the precipitation of the indissolubles such as zinc phosphate, the present invention has overcome zinc in prior art and easily in high phosphorus liquid fertilizer, has produced with phosphorus the technological deficiency that indissoluble precipitates, cost is high, metal ion content is low.
The high zinc liquid composite fertilizer of high phosphorus of the present invention can be according to dissimilar and growth regulator concentration of need to adding of crop different growing, the high zinc liquid composite fertilizer of described high phosphorus also can mix use 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 the high zinc liquid composite fertilizer of high phosphorus of the present invention is: drench while executing, 200～300 times of crops seedling stage dilutions, dilute At All Other Times 100～200 times, directly drench in crop root, according to determining the breeding time of crop to drench, execute number of times, the timed interval is 10～15 days, and vegetables can suitably increase application times, and fruit tree can suitably be strengthened amount of application; While spraying, 800～1000 times of vegetables and field crop dilutions, 500～800 times of fruit tree dilutions, are sprayed on blade surface, and pros and cons all will spray, till being sprayed onto blade and just dripping; While using by drip irrigation, seedling stage, concentration was 200～300 times, middle and later periods is 100～200 times, general can dripping for every 7～10 days executed once, during drip irrigation, must get hold of fertilization time, the crop that root system is more shallow, fertilization time must be controlled in 30 minutes, the crop that root system is dark, and fertilization time is controlled at 1～1.5 hour.
Compared with prior art, the present invention has following beneficial effect:
(1) the high zinc liquid composite fertilizer of high phosphorus of the present invention total nutrient content is high, physics and chemistry dimensionally stable, under high temperature, low temperature and normal temperature condition without phenomenons such as crystallization, precipitation, layerings.
(2) the high zinc liquid composite fertilizer of high phosphorus of the present invention belongs to clear liquid type liquid fertilizer, can foliage-spray, drench and execute, also can be 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 and the zinc content in the high zinc liquid composite fertilizer of high phosphorus of the present invention is higher, by adding phosphoric acid, provides acidic conditions, makes phosphorus and zinc Simultaneous Stabilization and is dissolved in liquid, avoids producing the precipitation of 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 obviously improve fertilising efficiency.
(5) the invention provides the ternary liquid fertilizer containing middle trace element, nutritive element is comprehensive, for crop provides grow required macroelement and middle trace element simultaneously, wherein the feature of the high zinc of high phosphorus of the present invention can promote crop root growth, Accelerate bloom, the while can effectively prevent the zinc deficiency symptom of crop.
(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 People's Republic of China's agricultural industry criteria (NY/T1973-2010) " macroelement water-soluble fertilizer (microelement type) liquid " product quality indicator, can reach again " trace element water-soluble fertilizer liquid " product quality indicator, 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 the high zinc liquid composite fertilizer of high phosphorus provided by the invention, and the tribute mandarin orange blade that lacks zinc has jaundice spot, and young leaves can not normally launch, and blade is less than normal, is a bunch shape;
Fig. 2 is for spraying tribute mandarin orange aspect graph after the high zinc liquid composite fertilizer of high phosphorus 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 is made further and being elaborated, but embodiment does not limit in any form the present invention.
Embodiment 1
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, the water-soluble stirring of urea 10min, obtain the mother liquor of clear;
S2. zinc oxide is slowly added to the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added to the suspension in S2, limit edged stirs, and keeps stable reaction at 80 ℃, forms the fluid of thickness clarification after 10min;
S4. keep the temperature of reaction generation in S3 at 55 ℃, add fast respectively in order ammonium nitrate, Ureaphil and ammonium polyphosphate, stir 10min, form the fluid of clear;
S5. magnesium oxide is slowly added to the fluid of the clear in S4, limit edged stirs, and allows fluid naturally cooling after 25min;
S6. until the fluid in S5, be cooled to after room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 ℃, stirs 20min;
S7. keep the temperature of reaction generation in S6 at 60 ℃, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 20min, and 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
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, the water-soluble stirring of urea 12min, obtain the mother liquor of clear;
S2. zinc oxide is slowly added to the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added to the suspension in S2, limit edged stirs, and keeps stable reaction at 85 ℃, forms the fluid of thickness clarification after 15min;
S4. keep the temperature of reaction generation in S3 at 60 ℃, add fast respectively in order Ureaphil, ammonium nitrate and ammonium polyphosphate, stir 10min, form the fluid of clear;
S5. magnesium oxide is slowly added to the fluid of the clear in S4, limit edged stirs, and allows fluid naturally cooling after 20min;
S6. until the fluid in S5, be cooled to after room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps being stabilized in 75 ℃, stirs 15min;
S7. keep the temperature of reaction generation in S6 at 55 ℃, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 20min, and 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
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, the water-soluble stirring of urea 15min, obtain the mother liquor of clear;
S2. zinc oxide is slowly added to the mother liquor in S1, limit edged stirs, and forms slimy suspension after 25min;
S3. phosphoric acid is slowly added to the suspension in S2, limit edged stirs, and keeps stable reaction at 75 ℃, forms the fluid of thickness clarification after 10min;
S4. keep the temperature of reaction generation in S3 at 50 ℃, add fast respectively in order ammonium polyphosphate, Ureaphil and ammonium nitrate, stir 15min, form the fluid of clear;
S5. magnesium oxide is slowly added to the fluid of the clear in S4, limit edged stirs, and allows fluid naturally cooling after 23min;
S6. until the fluid in S5, naturally cool to after room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps being stabilized in 70 ℃, stirs 17min;
S7. keep the temperature of reaction generation in S6 at 50 ℃, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 25min, and 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
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus 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
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus 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
Each component that described in the present embodiment, the high zinc liquid composite fertilizer of high phosphorus contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, the water-soluble stirring of urea 10min, obtain the mother liquor of clear;
S2. zinc oxide is slowly added to the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. monoammonium phosphate is slowly added to the suspension in S2, limit edged stirs, and keeps stable reaction at 80 ℃, forms the fluid of thickness clarification after 10min;
S4. keep the temperature of reaction generation in S3 at 55 ℃, add fast respectively in order ammonium nitrate, Ureaphil and ammonium polyphosphate, stir 10min, form the fluid of clear;
S5. magnesium oxide is slowly added to the fluid of the clear in S4, limit edged stirs, and allows fluid naturally cooling after 25min;
S6. until the fluid in S5, be cooled to after room temperature, slowly add potassium hydroxide, limit edged stirs, and keeps being stabilized in 80 ℃, stirs 20min;
S7. keep the temperature of reaction generation in S6 at 60 ℃, slowly add Repone K and solubility promoter, limit edged stirs, and is cooled to room temperature after 20min, and 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
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, the water-soluble stirring of urea 10min, obtain the mother liquor of clear;
S2. zinc oxide and zinc chloride are slowly added to the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added to the suspension in S2, limit edged stirs, and keeps stable reaction at 80 ℃, forms the fluid of thickness clarification after 10min;
S4. keep the temperature of reaction generation in S3 at 55 ℃, add fast respectively in order ammonium nitrate, Ureaphil and ammonium polyphosphate, stir 10min, form the fluid of clear;
S5. magnesium oxide and magnesium sulfate are slowly added to the fluid of the clear in S4, limit edged stirs, and allows fluid naturally cooling after 25min;
S6. until the fluid in S5, be cooled to after room temperature, slowly add potassium hydroxide and Repone K, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 ℃, stirs 20min;
S7. keep the temperature of reaction generation in S6 at 60 ℃, slowly add Repone K and glycerine, limit edged stirs, and is cooled to room temperature after 20min, and 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
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, the water-soluble stirring of urea 10min, obtain the mother liquor of clear;
S2. zinc oxide and zinc nitrate are slowly added to the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added to the suspension in S2, limit edged stirs, and keeps stable reaction at 80 ℃, forms the fluid of thickness clarification after 10min;
S4. keep the temperature of reaction generation in S3 at 55 ℃, add fast respectively in order ammonium nitrate, Ureaphil and ammonium polyphosphate, stir 10min, form the fluid of clear;
S5. magnesium oxide and magnesium chloride are slowly added to the fluid of the clear in S4, limit edged stirs, and allows fluid naturally cooling after 25min;
S6. until the fluid in S5, be cooled to after room temperature, slowly add potassium hydroxide and dipotassium hydrogen phosphate, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 ℃, stirs 20min;
S7. keep the temperature of reaction generation in S6 at 60 ℃, slowly add Repone K, tetradecyl dimethyl tertiary amine and glycol ether, limit edged stirs, and is cooled to room temperature after 20min, and 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
Each component that the high zinc liquid composite fertilizer of high phosphorus described in the present embodiment contains following parts by weight:
The concrete preparation method of the high zinc liquid composite fertilizer of described high phosphorus comprises the steps:
S1. by four water eight Sodium Tetraboratees, EDTA-Mm, the water-soluble stirring of urea 10min, obtain the mother liquor of clear;
S2. zinc oxide and zinc sulfate are slowly added to the mother liquor in S1, limit edged stirs, and forms slimy suspension after 20min;
S3. phosphoric acid is slowly added to the suspension in S2, limit edged stirs, and keeps stable reaction at 80 ℃, forms the fluid of thickness clarification after 10min;
S4. keep the temperature of reaction generation in S3 at 55 ℃, add fast respectively in order ammonium nitrate, Ureaphil and ammonium polyphosphate, stir 10min, form the fluid of clear;
S5. magnesium oxide and magnesium nitrate are slowly added to the fluid of the clear in S4, limit edged stirs, and allows fluid naturally cooling after 25min;
S6. until the fluid in S5, be cooled to after room temperature, slowly add potassium hydroxide and potassium primary phosphate, limit edged stirs, and keeps temperature of reaction to be stabilized in 80 ℃, stirs 20min;
S7. keep the temperature of reaction generation in S6 at 60 ℃, slowly add Repone K and benzaminic acid, sodium salicylate, Sodium dodecylbenzene sulfonate, limit edged stirs, and is cooled to room temperature after 20min, and 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 the high zinc liquid composite fertilizer of embodiment 10 high phosphorus of the present invention
The high zinc liquid composite fertilizer of high phosphorus that described in the embodiment of the present invention 1～9, method prepares is present in the liquid phase of liquid fertilizer the phosphorus of high-content and zinc simultaneously, and high, the middle trace element of formation total nutrient content is complete, the organic liquid fertilizer of good fluidity.Adopt content's index that People's Republic of China's agricultural industry criteria (NY/T1973-2010) records 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, by the temperature that adds speed and reaction of strict control phosphoric acid, zinc element and the phosphatase reaction that can effectively prevent the high-content in fertilizer form precipitation, reduce the effective content of zinc in liquid fertilizer.
The application test of the high zinc liquid composite fertilizer of embodiment 8 high phosphorus of the present invention
(1) spraying test
Test site: Yangxin County, Yangjiang city one Xiang fruit
Test period: in February, 2011-2011 year December
Trial crops: tribute mandarin orange
Test soil: latosol
Testing program: high phosphorus of the present invention high zinc liquid composite fertilizer sample and two processing of comparative example are chosen in this test.The oranges and tangerines dedicated liquid fertile (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.The high zinc liquid composite fertilizer of high phosphorus of the present invention arranges 5 processing, be numbered respectively and process the high zinc liquid composite fertilizer of high phosphorus that 1(adopts the embodiment of the present invention 1 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 2(adopts the embodiment of the present invention 2 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 3(adopts the embodiment of the present invention 3 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 4(adopts the embodiment of the present invention 4 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 5(adopts the embodiment of the present invention 5 to prepare).Each is processed liquid fertilizer and respectively sprays 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 the high zinc liquid composite fertilizer of high phosphorus of the present invention has all increased tribute mandarin orange to a certain extent.Wherein the effect of increasing production of embodiment 1 is the most remarkable, and comparing single plant yield with comparative example increases 16.1kg, and stimulation ratio is 28.7%.Meanwhile, spray the single fruit weight that the high zinc liquid composite fertilizer of high phosphorus of the present invention has also significantly improved tribute mandarin orange, embodiment 1,2,3,4,5 single fruit weights respectively higher by 23.3% than comparative example, 26.6%, 15.6%, 16.7%, 20.6%.Visible, the high zinc liquid composite fertilizer of high phosphorus provided by the invention has promoted the absorption of tribute mandarin orange fruit growth and mineral nutrient, has improved percentage of fertile fruit and the single fruit weight of tribute mandarin orange, thereby has improved the yield and quality of tribute mandarin orange.
In addition, the high zinc liquid composite fertilizer of high phosphorus provided by the invention can obviously be alleviated the symptom that tribute mandarin orange lacks zinc, effectively prevents the generation of tribute mandarin orange " little leaf disease ".As shown in Figure 1, spray before the high zinc liquid composite fertilizer of high phosphorus provided by the invention, the tribute mandarin orange blade that lacks zinc has jaundice spot, and young leaves can not normally launch, and blade is less than normal, be a bunch shape, as shown in Figure 2, spray after the high zinc liquid composite fertilizer of high phosphorus provided by the invention tribute mandarin orange leaf dark green, and young leaves can normally launch, and leaf area obviously increases.
(2) drench and execute test
Test site: Sha Tou village, rock patch town, Zengcheng City, Guangzhou, Guangdong
Test period: in September, 2011-2011 year December
Trial crops: Plantula Brassicae chinensis
Test soil: silty loam
Testing program: high phosphorus of the present invention high zinc liquid composite fertilizer sample and two processing of comparative example are chosen in this test.The Plantula Brassicae chinensis dedicated liquid fertile (the water-soluble fertilizer of macroelement) that comparative example adopts Lv Xing bio tech ltd, Guangdong to produce, N+P
2o
5+ K
2o>=500g/L, B+Zn>=5g/L.The high zinc liquid composite fertilizer of high phosphorus of the present invention arranges 5 processing, be numbered respectively and process the high zinc liquid composite fertilizer of high phosphorus that 1(adopts the embodiment of the present invention 1 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 2(adopts the embodiment of the present invention 2 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 3(adopts the embodiment of the present invention 3 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 4(adopts the embodiment of the present invention 4 to prepare), process the high zinc liquid composite fertilizer of high phosphorus that 5(adopts the embodiment of the present invention 5 to prepare).In sowing on September 6th, 2011, final singling on September 28, mu is planted 30,000 strains.November 8 gathered in the crops.Each is processed liquid fertilizer and executes 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 was drenched and is executed with same application concentration and time.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, and the high zinc liquid composite fertilizer of high phosphorus of the present invention is executed in pouring has all increased the output of Plantula Brassicae chinensis 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 to execute the plant height that the high zinc liquid composite fertilizer of high phosphorus of the present invention has also significantly improved Plantula Brassicae chinensis, the plant height of embodiment 1,2,3,4,5 respectively higher by 20.8% than comparative example, 18.0%, 18.5%, 19.7%, 11.2%.Therefore, the high zinc liquid composite fertilizer of high phosphorus provided by the invention has promoted the growth of Plantula Brassicae chinensis and the absorption of mineral nutrient, has improved the yield and quality of Plantula Brassicae chinensis.Meanwhile, liquid composite fertilizer provided by the invention can obviously promote the Plantula Brassicae chinensis root growth in seedling stage, thereby improves the speed of growth of plant.
Claims (9)
1. the high zinc liquid composite fertilizer of high phosphorus, 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.
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, 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, tetradecyl dimethyl tertiary amine, glycol ether or diethylene glycol monoethyl ether.
6. according to compound manure described in claim 1 to 5 any one, 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 preparation method of the high zinc liquid composite fertilizer of high phosphorus described in claim 1, is characterized in that, comprises the steps:
S1. after four water eight Sodium Tetraboratees, EDTA-Mn and urea is water-soluble by compound manure formula described in claim 1, obtain mother liquor;
S2. in mother liquor, add zinc fertilizer, limit edged is stirred to and forms slimy suspension;
S3. in suspension, add phosphoric acid, at 75～85 ℃ of following edgeds of condition, stir the fluid that forms thickness clarification;
S4. under 50～60 ℃ of conditions, in fluid, add fast respectively in order ammonium nitrate, Ureaphil and ammonium polyphosphate, be stirred to the fluid that forms clear;
S5. fertiliser containing magnesium is added in the fluid of S4, limit edged stirs, and allows the temperature of fluid naturally reduce;
S6. the temperature until fluid in S5 is reduced to after room temperature, slowly adds potassium hydroxide, and keeping temperature of reaction is 70～80 ℃;
S7. keep temperature of reaction in S6 in the time of 50～60 ℃, slowly to add Repone K and solubility promoter, after mixing, be cooled to room temperature and obtain compound manure.
9. according to the using method of compound manure described in claims 1～7 any one, it is characterized in that, described compound manure is executed for drenching, drip irrigation or spray.
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