CN104098395A - Preparation method of water-soluble fertilizer - Google Patents
Preparation method of water-soluble fertilizer Download PDFInfo
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Abstract
The invention discloses a preparation method of water-soluble fertilizer. The method comprises that the water-soluble fertilizer is formed by mixing of raw materials such as urea, monopotassium phosphate, potassium nitrate, biochemical fulvic acid, a laundry detergent and biogas slurry. According to the method, an anaerobic fermentation residue, namely, the biogas slurry, is used as a raw material and prepared into the water-soluble fertilizer containing a humic acid, and the water-soluble fertilizer conforms to requirements of the agricultural standard NY1106-2010 and is high in safety, low in toxicity, capable of utilizing waste and nontoxic to seed germination; the water-soluble fertilizer is best for increase of the seed germination index when being diluted by 400 times; and the technological operation is simple, technological conditions are easy to control, and the prepared water-soluble fertilizer is sable in quality.
Description
Technical field
The invention belongs to the research field of fertilizer and preparation method thereof, particularly a kind ofly take waste---water soluble fertilizer that natural pond liquid is main raw material and preparation method thereof.
Background technology
Natural pond liquid contains a certain amount of organic matter, macroelement, trace element, amino acid, VITAMIN etc.Not only can, for plant provides nutrient, can also reach the effect of sterilization and pre-preventing disease and pest.Thereby natural pond liquid directly as fertilizer sources use, but its nutrient content is less, causes transportation cost larger, and the soil that the needs generation far fewer than natural pond liquid of dissolving nearby.Thereby natural pond liquid as fertilizer sources directly use restricted larger.
Studies have reported that: use organic natural pond liquid bio-fertilizer and can make the microorganism total amount in soil increase by 500.The Zhao Ye composite fertilizer of the people such as Zhang Fengmei development can obviously promote the growth of tomato in plastic greenhouse plant, and tomato yield and the fruit quality of using Zhao Ye composite fertilizer obviously raise.People's screenings such as Bai Xin composite PGPR root circle growth-promoting bacterium are in the liquid of natural pond, make organic natural pond liquid bio-fertilizer, applying this fertile capsicum, tomato, cucumber fruits Vc content increases respectively 31%, 46.6% and 56.8% than processing CK, and soluble sugar content improves respectively 32.4%, 45%, 84.2%.The natural pond liquid fertilizer of the different proportionings of the people such as Liu Dejiang research shows the impact of leaf vegetables output and quality, adds after the nitrogen, phosphorus, potassium fertilizer of different ratios in the liquid of natural pond, and its effect of increasing production is all higher than former natural pond liquid, and take N: P: K ratio was the best as 2: 1: 4.Visible natural pond liquid is developed into fertilizer not only can natural pond liquid is concentrated, reduce its transportation cost, the waste of having dissolved---natural pond liquid; preserve the ecological environment; and increased the nutritive element content in the liquid of natural pond, make the more effective absorption of plant, thereby improve crop yield and quality.
In addition, with regard to the more fertilizer of current use, no matter urea, Repone K, calcium magnesium phosphorus or Nitrogen, Phosphorus and Potassium, its chemical constitution is simple substance element.And the water-soluble fertilizer being made with natural pond liquid is except containing N, P, K three elements, separately contain in some, trace element, belong to all nutrition type fertilizer, can meet the demand of plant normal growth in the time of infertility to nutrient.Containing humic acid water-soluble fertilizer, it is a class multifunctional water-soluble compound fertilizer.Have and strengthen plant resistance, delay plant senesecence, regulate and nourish and grow and reproductive growth, promotion bud differentiation and growth, raising the bud quality, improve the multi-function actions such as crop quality, degrading pesticide residues.
Thereby the present invention selects anaerobic fermentation residues---natural pond liquid is as the mother liquor of preparing water-soluble fertilizer, object is that natural pond liquid is concentrated and makes macroelement water-soluble fertilizer, trace element water-soluble fertilizer and contain humic acid water-soluble fertilizer, thereby reducing on the basis of fertilizer transportation cost, make full use of beneficial element and material in the liquid of natural pond.
Summary of the invention
The object of the invention is to prepare for the existing natural pond liquid that utilizes technical problem and deficiency that water soluble fertilizer exists, a kind of method of utilizing natural pond liquid to prepare water soluble fertilizer is provided, water soluble fertilizer prepared by the inventive method provides necessary nutritive element and micro-beneficial element for plant-growth, fertilizer quality characteristic is stable, meet the requirement of agricultural industry criteria NY1106-2010, and water soluble fertilizer of the present invention is safe, toxicity is little, to the equal nontoxicity of seed germination, germination index is high.
For realizing object of the present invention, one aspect of the present invention provides a kind of preparation method of water soluble fertilizer, comprises raw material urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid and natural pond liquid are mixed.
Wherein, the proportioning of described raw material is: every 1L natural pond liquid comprises urea 15-25g, potassium primary phosphate 147-180g, saltpetre 90-95g, biochemical fulvic acid 120-160g, washing liquid 8-13ml.
Particularly, the proportion optimization of described raw material is that every 1L natural pond liquid comprises urea 15-20g, potassium primary phosphate 170-175g, saltpetre 90-95g, biochemical fulvic acid 140-160g, washing liquid 8-10ml.
Especially, the proportioning of described raw material more preferably every 1L natural pond liquid comprises urea 20g, potassium primary phosphate 172.25g, saltpetre 90.6g, biochemical fulvic acid 155g, washing liquid 10ml.
Wherein, the dirty rinse water of the feces of livestock and poultry that described natural pond liquid is livestock and poultry farm and excrement forms through hybrid anaerobic fermentation.
Particularly, described natural pond liquid is chosen as ox natural pond liquid, pig natural pond liquid or pig ox natural pond liquid, is preferably ox natural pond liquid.
Especially, the ox natural pond liquid that the dirty anaerobically fermenting of described natural pond liquid selection diary farm excrement produces.
Particularly, described ox natural pond liquid has a physico-chemical property as described below:
Wherein, described washing liquid possesses good water-soluble.
Washing liquid possesses the effect of broken wax, degrease, and the effect that adds washing liquid is the effects such as dissolution solution and infiltration, broken wax.
Particularly, described washing liquid is selected the blue moon washing liquid of Guangzhou Blue Moon Industrial Co, the Tide washing liquid of the profound washing liquid of Unilever, company limited of P&G (China) or Na Aisi group superly plants emerald green low foam laundry liquid, and what be preferably Na Aisi group superly plants emerald green low foam laundry liquid.
Wherein, content >=55% of xanthohumic acid in described biochemical fulvic acid.
Particularly, described biochemical fulvic acid is selected Yi Nong biochemical technology company limited, Sheng Hua bio tech ltd, Shenzhen, the ten thousand state's biochemistry biochemical fulvic acid that xanthohumic acid company limited produces of benefiting mankind.
Particularly, described water soluble fertilizer is water miscible leaf leaven.
Especially, in described water soluble fertilizer, contain washing liquid and can effectively abolish the wax of leaf surface layer, thereby make fertilizer infiltrate fast performance fertilizer efficiency in plant leaf surface.
Particularly, described water soluble fertilizer is water-soluble plant foliage fertilizer.
The present invention improves a kind of preparation method of water soluble fertilizer on the other hand, comprises as follows step in sequence:
1) according to following proportioning, get the raw materials ready
2) in the liquid of natural pond, add successively urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, carry out stir process, dissolve, mix and get final product.
Wherein, proportioning raw materials step 1) is preferably every 1L natural pond liquid and comprises urea 15-20g, potassium primary phosphate 170-175g, saltpetre 90-95g, biochemical fulvic acid 140-160g, washing liquid 8-10ml.
Particularly, the proportioning of described raw material more preferably every 1L natural pond liquid comprises urea 20g, potassium primary phosphate 172.25g, saltpetre 90.6g, biochemical fulvic acid 155g, washing liquid 10ml.
Wherein, the dirty rinse water of the feces of livestock and poultry that described natural pond liquid is livestock and poultry farm and excrement forms through hybrid anaerobic fermentation.
Particularly, described natural pond liquid is chosen as ox natural pond liquid, pig natural pond liquid or pig ox natural pond liquid, is preferably ox natural pond liquid.
Especially, the ox natural pond liquid that the dirty anaerobically fermenting of described natural pond liquid selection diary farm excrement produces.
Wherein, described washing liquid possesses good water-soluble.
Washing liquid possesses the effect of broken wax, degrease, and the effect that adds washing liquid is the effects such as dissolution solution and infiltration, broken wax.
Particularly, described washing liquid selects that described washing liquid selects the blue moon washing liquid of Guangzhou Blue Moon Industrial Co, the Tide washing liquid of the profound washing liquid of Unilever, company limited of P&G (China) or Na Aisi group superly plants emerald green low foam laundry liquid, and what be preferably Na Aisi group superly plants emerald green low foam laundry liquid.
Wherein, content >=55% of xanthohumic acid in described biochemical fulvic acid.
Particularly, described biochemical fulvic acid is selected Yi Nong biochemical technology company limited, Sheng Hua bio tech ltd, Shenzhen, the ten thousand state's biochemistry biochemical fulvic acid that xanthohumic acid company limited produces of benefiting mankind.
Wherein, step 2) described in, in stir process process, whipping temp is 40-60 ℃, is preferably 40-50 ℃, more preferably 45 ℃; Stirring velocity is 150-350rpm, is preferably 180-300rpm; Churning time is 10-30min, is preferably 20min.
Particularly, adding stir speed (S.S.) in the process of urea is 200-300rpm, is preferably 250rpm; Temperature is 40-60 ℃, is preferably 40-50 ℃, more preferably 45 ℃; Churning time is 10-30min, is preferably 20min;
Adding stir speed (S.S.) in the process of potassium primary phosphate is 200-300rpm, is preferably 250rpm; Temperature is 40-60 ℃, is preferably 40-50 ℃, more preferably 45 ℃; Churning time is 10-30min, is preferably 20min;
Adding stir speed (S.S.) in the process of saltpetre is 180-250rpm, is preferably 200rpm; Temperature is 40-60 ℃, is preferably 40-50 ℃, more preferably 45 ℃; Churning time is 10-30min, is preferably 20min;
Adding stir speed (S.S.) in the process of biochemical fulvic acid is 200-250rpm, is preferably 200rpm; Temperature is 40-60 ℃, is preferably 40-50 ℃, more preferably 45 ℃; Churning time is 10-30min, is preferably 20min;
Adding stir speed (S.S.) in the process of washing liquid is 200-300rpm, is preferably 200rpm; Temperature is 40-60 ℃, is preferably 40-50 ℃, more preferably 45 ℃; Churning time is 10-30min, is preferably 20min.
The inventive method tool has the following advantages:
1, the water soluble fertilizer that prepared by the inventive method provides comprehensive nutritive element for plant strain growth, and the proportioning of each nutritive element is scientific and reasonable, and solvability is good, effective constituent solubility and good dispersity, be easy to plant and absorb, promote that the effect of plant growth is remarkable, output improves, quality improving.
2, the water soluble fertilizer that prepared by the inventive method usings that anaerobic fermentation residues----natural pond liquid, as the mother liquor of preparing water soluble fertilizer, contains humic acids in the water-soluble fertilizer of making, and water soluble fertilizer meets the requirement of agricultural industry criteria NY1106-2010.
3, the water soluble fertilizer quality that prepared by the present invention is stable, and standing storage is without precipitation and crystallization; And safe to use, toxicity is little, to the equal nontoxicity of seed germination; And best to improving seed germination index while diluting 400 times.
4, simple, the manufacturing condition of the preparation method of water soluble fertilizer of the present invention is easily controlled, and process for preparation Raw adds successively and guaranteed product solution homogeneous, and stability is high, does not produce precipitation, constant product quality, low production cost.
5, water soluble fertilizer of the present invention is the water soluble fertilizer containing humic acids, reducing on the basis of fertilizer transportation cost, makes full use of beneficial element and material in the liquid of natural pond.
6, the present invention utilizes agricultural wastes---and natural pond liquid, the pollutent of dissolving, is conducive to preserve the ecological environment.
Embodiment
Below in conjunction with specific embodiment, further describe the present invention, advantage and disadvantage of the present invention will be more clear along with description.But these embodiment are only exemplary, scope of the present invention are not formed to any restriction.It will be understood by those skilled in the art that lower without departing from the spirit and scope of the present invention and can the details of technical solution of the present invention and form be modified or be replaced, but these modifications and replacement all fall within the scope of protection of the present invention.
Urea, potassium primary phosphate, saltpetre, biochemical fulvic acid (being purchased from ten thousand state's biochemistry xanthohumic acid company limited that benefits mankind, xanthohumic acid >=55% wherein, amino acid >=15%); Washing liquid is the super emerald green low foam laundry liquid (production of Na Aisi group) of planting; Natural pond liquid is taken from the dirty anaerobic fermented liquid storage pond of south, Beijing mouthful diary farm, northern agriculture Technology Park excrement, and its physico-chemical property is as shown in table 1:
Table 1 is for the basic physical and chemical of examination natural pond liquid
Super plant emerald green low foam laundry liquid of the washing liquid using in the embodiment of the present invention except using Na Aisi group to produce, other are all applicable to the present invention as the Tide washing liquid of the profound washing liquid of the blue moon washing liquid of Guangzhou Blue Moon Industrial Co, Unilever, company limited of P&G (China) etc.; The natural pond liquid using is except taking from south, Beijing mouthful dirty anaerobic fermented liquid storage pond of diary farm, northern agriculture Technology Park excrement plant, and other natural pond liquid with following physico-chemical property are all applicable to the present invention, specific as follows:
Embodiment 1
1, according to following proportioning, get the raw materials ready
Biochemical fulvic acid (bfa) is the Yi Ge branch of xanthohumic acid, and xanthohumic acid is the Yi Ge branch of humic acid, to utilize biotechnology to take agricultural tankage as raw material, utilize different floras under low temperature, middle temperature and high temperature, multistage fermentation and the product that generates, it measures effective content is xanthohumic acid 51%, nucleic acid 16%, and amino acid (25 kinds) 9.3% also has other various active material.Biochemical fulvic acid is alkaline soluble, water, acid, has both had general feature and the character of mineral resources xanthohumic acid, has again the not available feature of general xanthohumic acid.The molecular weight of biochemical fulvic acid, thereby easily by bio-absorbable, utilized; The functional group content of biochemical fulvic acid is less, higher than the physiologically active of general xanthohumic acid; Biochemical fulvic acid can be directly water-soluble, and its aqueous solution is slightly acidic, and humic acid is water insoluble, and need to change the univalent metal salts such as potassium, sodium or ammonium salt into could be water-soluble, and the aqueous solution of these salt is all alkalescence, is unfavorable for that plant absorbs and utilizes.
Washing liquid possesses good water-soluble; Meanwhile, washing liquid all possesses the effect of broken wax, degrease.
The object that adds washing liquid in the present invention is that this foliage fertilizer can effectively be abolished the wax of leaf surface layer when the liquid fertilizer of preparation is done foliage fertilizer, thereby infiltrates performance fertilizer efficiency effect in plant materials.
2, mixing, dissolution process
The beaker that natural pond liquid is housed is placed in thermostat water bath, keeping bath temperature is 45 ℃, and under whipped state, in the liquid of natural pond, add successively while stirring urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, after adding a kind of material to stir, be uniformly dissolved, add again another material, in whipping process, keeping temperature is 45 ℃, wherein:
Adding stir speed (S.S.) in the process of urea is 250rpm, and the time is 20min, and whipping temp remains 45 ℃; Adding stir speed (S.S.) in the process of potassium primary phosphate is 250rpm, time is 20min, and whipping temp remains 45 ℃, and the solubleness of potassium primary phosphate is less than saltpetre, and the amount adding is larger than saltpetre, thereby first add potassium primary phosphate to guarantee that potassium primary phosphate can dissolve; Adding stir speed (S.S.) in the process of saltpetre is 200rpm, and the time is 20min, and whipping temp remains 45 ℃; Adding stir speed (S.S.) in the process of biochemical fulvic acid is 200rpm, and the time is 20min, and whipping temp remains 45 ℃, and the solubleness of biochemical fulvic acid can reach more than 90% in the time of 40 ℃, although thereby the amount adding larger, still can finally add; Adding stir speed (S.S.) in the process of washing liquid is 200rpm, and the time is 20min, and whipping temp remains 45 ℃, and washing liquid is liquid, and in all substances that add, aequum is minimum and the most soluble, thereby finally adds;
After washing liquid dissolves, stop adding heating, be cooled to room temperature (15-35 ℃), obtain water soluble fertilizer of the present invention.
Stirring object is to make the raw material adding in the liquid of natural pond, accelerate and dissolve fully, accelerates solid-liquid and mixes and dissolve.
The present invention prepares in water soluble fertilizer process and adds successively according to the order of urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, first can alleviate the burden that raw material dissolves in the liquid of natural pond, next adds a kind of raw material if there is dissolving the phenomenons such as incomplete, crystal is separated out, can comparatively be easy to analyze its former therefore place, thereby adjust preparation scheme.And raw material is added in the liquid of natural pond disorderly, cannot accomplish 2 above points; simultaneously And urea is dissolved in after the liquid of natural pond, there is the effect that increases material dissolution, promote the dissolving of raw material, urea easily produces ammoniacal liquor after being first dissolved in natural pond liquid, the ammoniacal liquor generating also can dissolve a part of potassium primary phosphate and saltpetre, promote the solubleness of potassium primary phosphate, saltpetre, increase the content of the macroelement of the water soluble fertilizer of preparing; And other raw materials to add object in the liquid of natural pond be to allow it dissolve, dissolution equilibrium form complex compound in mixing solutions, increases the solubleness of each element.In this research, by raw material, add the various ion in the liquid of natural pond to comprise NH
4+, PO
4 3-, K
+, NO
3 -, these ions all can coexist and precipitin reaction not occur in solution.
The property indices of the water soluble fertilizer of preparation detects as follows, and measurement result is as shown in table 2:
PH value: first use wide pH value detection paper, then measure with pH meter;
Organic content: detect the 6th part according to agricultural industry criteria < < soil: the mensuration of the soil organism (NY/T1121.6-2006) > > is that potassium bichromate titrimetric method is measured;
N nutrient content: measure according to the mensuration of national standard < < water quality total nitrogen-alkaline alkaline potassium per-sulfate digestion ultraviolet spectrophotometry (GB11894-89) > >;
P nutrient content: according to the mensuration of national standard < < water quality total phosphorus--ammonium molybdate spectrophotometry (GB/T11893-89) > > method is measured;
K nutrient content: measure according to mensuration atomic absorption spectrophotometry (GB/T11904-89) the > > method of national standard < < water quality potassium and sodium;
Water-soluble fertilizer humic acids content: measure according to mensuration (NY/T1971-2010) the > > method of agricultural industry criteria < < water-soluble fertilizer humic acids content;
Micronutrient levels: adopt atomic absorption spectroscopy to measure;
Lead, chromium, cadmium, arsenic, mercury content: according to mensuration (NY/T1978-2010) the > > method of agricultural industry criteria < < fertilizer mercury, arsenic, cadmium, lead, chromium content, measure, adopt AFS DETERMINATION.
Table 2 embodiment 1 prepares the indices assay result of water soluble fertilizer
The detected result of table 2 shows: the physico-chemical property of water soluble fertilizer of the present invention is: macroelement is (with N, P
2o
5, K
2o meter) total amount is 219.66g/L, and its nutrient content is than being N:P
2o
5: K
2o=1:9.89:13.04; PH=5.57; Humic acids content is 53.17g/L; Color is brownish black, has microprecipitation, does not affect the fertilizer efficiency of water-soluble fertilizer.Water soluble fertilizer prepared by the present invention meets agricultural industry criteria < < containing the requirement of humic acid water-soluble fertilizer (NY1106-2010) > >.
Embodiment 2
1, according to following proportioning, get the raw materials ready
2, mixing, dissolution process
The beaker that natural pond liquid is housed is placed in thermostat water bath, keeping bath temperature is 50 ℃, and under whipped state, in the liquid of natural pond, add successively while stirring urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, after adding a kind of material to stir, be uniformly dissolved, add again another material, in whipping process, keeping temperature is 50 ℃, wherein:
Adding stir speed (S.S.) in the process of urea is 200rpm, and the time is 30min, and whipping temp remains 50 ℃; Adding stir speed (S.S.) in the process of potassium primary phosphate is 300rpm, and the time is 30min, and whipping temp remains 40 ℃; Adding stir speed (S.S.) in the process of saltpetre is 180rpm, and the time is 10min, and whipping temp remains 50 ℃; Adding stir speed (S.S.) in the process of biochemical fulvic acid is 200rpm, and the time is 10min, and whipping temp remains 50 ℃; Adding stir speed (S.S.) in the process of washing liquid is 300rpm, and the time is 30min, and whipping temp remains 40 ℃, and washing liquid is liquid, and in all substances that add, aequum is minimum and the most soluble, thereby finally adds;
After washing liquid dissolves, stop adding heating, be cooled to room temperature (15-35 ℃), obtain water soluble fertilizer of the present invention.
The property indices of the water soluble fertilizer of preparation detects as follows, and measurement result is as shown in table 3:
Table 3 embodiment 2 prepares the indices assay result of water soluble fertilizer
The detected result of table 3 shows: the physico-chemical property of water soluble fertilizer of the present invention is: macroelement is (with N, P
2o
5, K
2o meter) total amount is 201.05g/L, and its nutrient content is than being N:P
2o
5: K
2o=1:11.11:14.06; PH=6.14; Humic acids content is 55.8g/L; Color is brownish black, has microprecipitation, does not affect the fertilizer efficiency of water-soluble fertilizer.Water soluble fertilizer prepared by the present invention meets agricultural industry criteria < < containing the requirement of humic acid water-soluble fertilizer (NY1106-2010) > >.
Embodiment 3
1, according to following proportioning, get the raw materials ready
2, mixing, dissolution process
The beaker that natural pond liquid is housed is placed in thermostat water bath, keeping bath temperature is 45 ℃, and under whipped state, in the liquid of natural pond, add successively while stirring urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, after adding a kind of material to stir, be uniformly dissolved, add again another material, in whipping process, keeping temperature is 45 ℃, wherein:
Adding stir speed (S.S.) in the process of urea is 300rpm, and the time is 10min, and whipping temp remains 40 ℃; Adding stir speed (S.S.) in the process of potassium primary phosphate is 200rpm, and the time is 10min, and whipping temp remains 50 ℃; Adding stir speed (S.S.) in the process of saltpetre is 250rpm, and the time is 30min, and whipping temp remains 40 ℃; Adding stir speed (S.S.) in the process of biochemical fulvic acid is 250rpm, and the time is 30min, and whipping temp remains 40 ℃; Adding stir speed (S.S.) in the process of washing liquid is 200rpm, and the time is 10min, and whipping temp remains 50 ℃;
After washing liquid dissolves, stop adding heating, be cooled to room temperature (15-35 ℃), obtain water soluble fertilizer of the present invention.
The property indices of the water soluble fertilizer of preparation detects as follows, and measurement result is as shown in table 4:
Table 4 embodiment 3 prepares the indices assay result of water soluble fertilizer
The detected result of table 4 shows: the physico-chemical property of water soluble fertilizer of the present invention is: macroelement is (with N, P
2o
5, K
2o meter) total amount is 221.92g/L, and its nutrient content is than being N:P
2o
5: K
2o=1:10.54:13.78; PH=5.83; Humic acids content is 49.8g/L; Color is brownish black, has microprecipitation, does not affect the fertilizer efficiency of water-soluble fertilizer.Water soluble fertilizer prepared by the present invention meets agricultural industry criteria < < containing the requirement of humic acid water-soluble fertilizer (NY1106-2010) > >.
Embodiment 4
1, according to following proportioning, get the raw materials ready
2, mixing, dissolution process
The beaker that natural pond liquid is housed is placed in thermostat water bath, keeping bath temperature is 45 ℃, and under whipped state, in the liquid of natural pond, add successively while stirring urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, after adding a kind of material to stir, be uniformly dissolved, add again another material, in whipping process, keeping temperature is 45 ℃, wherein:
Adding stir speed (S.S.) in the process of urea is 200rpm, and the time is 20min, and whipping temp remains 60 ℃; Adding stir speed (S.S.) in the process of potassium primary phosphate is 200rpm, and the time is 10min, and whipping temp remains 60 ℃; Adding stir speed (S.S.) in the process of saltpetre is 200rpm, and the time is 20min, and whipping temp remains 60 ℃; Adding stir speed (S.S.) in the process of biochemical fulvic acid is 250rpm, and the time is 20min, and whipping temp remains 45 ℃; Adding stir speed (S.S.) in the process of washing liquid is 200rpm, and the time is 20min, and whipping temp remains 60 ℃;
After washing liquid dissolves, stop adding heating, be cooled to room temperature (15-35 ℃), obtain water soluble fertilizer of the present invention.
The property indices of the water soluble fertilizer of preparation detects as follows, and measurement result is as shown in table 5:
Table 5 embodiment 4 prepares the indices assay result of water soluble fertilizer
The detected result of table 5 shows: the physico-chemical property of water soluble fertilizer of the present invention is: macroelement is (with N, P
2o
5, K
2o meter) total amount is 218.78g/L, and its nutrient content is than being N:P
2o
5: K
2o=1:11.75:15.72; PH=6.17; Humic acids content is 56.1g/L; Color is brownish black, has microprecipitation, does not affect the fertilizer efficiency of water-soluble fertilizer.Water soluble fertilizer prepared by the present invention meets agricultural industry criteria < < containing the requirement of humic acid water-soluble fertilizer (NY1106-2010) > >.
Embodiment 5
1, according to following proportioning, get the raw materials ready
2, mixing, dissolution process
The beaker that natural pond liquid is housed is placed in thermostat water bath, keeping bath temperature is 45 ℃, and under whipped state, in the liquid of natural pond, add successively while stirring urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, after adding a kind of material to stir, be uniformly dissolved, add again another material, in whipping process, keeping temperature is 45 ℃, wherein:
Adding stir speed (S.S.) in the process of urea is 250rpm, and the time is 20min, and whipping temp remains 45 ℃; Adding stir speed (S.S.) in the process of potassium primary phosphate is 250rpm, and the time is 20min, and whipping temp remains 45 ℃; Adding stir speed (S.S.) in the process of saltpetre is 250rpm, and the time is 20min, and whipping temp remains 45 ℃; Adding stir speed (S.S.) in the process of biochemical fulvic acid is 200rpm, and the time is 20min, and whipping temp remains 60 ℃; Adding stir speed (S.S.) in the process of washing liquid is 300rpm, and the time is 20min, and whipping temp remains 45 ℃;
After washing liquid dissolves, stop adding heating, be cooled to room temperature (15-35 ℃), obtain water soluble fertilizer of the present invention.
The property indices of the water soluble fertilizer of preparation detects as follows, and measurement result is as shown in table 6:
Table 6 embodiment 5 prepares the indices assay result of water soluble fertilizer
The detected result of table 6 shows: the physico-chemical property of water soluble fertilizer of the present invention is: macroelement is (with N, P
2o
5, K
2o meter) total amount is 225.31g/L, and its nutrient content is than being N:P
2o
5: K
2o=1:9.16:10.44; PH=5.52; Humic acids content is 37.4g/L; Color is brownish black, has microprecipitation, does not affect the fertilizer efficiency of water-soluble fertilizer.Water soluble fertilizer prepared by the present invention meets agricultural industry criteria < < containing the requirement of humic acid water-soluble fertilizer (NY1106-2010) > >.
The stability test of test example 1 water soluble fertilizer
The lower static placement of water soluble fertilizer room temperature (15-35 ℃) prepared by embodiment 1-4 30 days, does not observe precipitation, crystal is separated out.
Test-results shows the good stability of water soluble fertilizer prepared by the inventive method, at room temperature places and does not produce precipitation, without crystallization.
In water soluble fertilizer of the present invention, not only comprise macroelement that plant is required and in, trace element, also containing abundant humic acid, is a class multifunctional water-soluble compound fertilizer, and the element in fertilizer is solution state, plant can directly utilize, and improves the assimilated efficiency of fertilizer.The humic acid containing in fertilizer can strengthen plant resistance, delays plant senesecence, regulate and nourish and grow and reproductive growth, promotion bud differentiation and growth, raising the bud quality, improve the multi-function actions such as crop quality, degrading pesticide residues.
Test example 2 seed germination index tests
" new No. three of Beijing " Chinese cabbage seed of usining detects the germination characteristic of the water soluble fertilizer of the embodiment of the present invention 1 preparation as experiment seed, wherein with the natural pond liquid of embodiment 1-4 example 2, deionized water example 1 in contrast in contrast.
Germination test is carried out according to national standard < < crop seeds inspection procedure > > GB/T3543.4-1995.Testing sequence is as follows:
(1) with deionized water, process Chinese cabbage seed, example 1 in contrast; With the natural pond liquid of embodiment 1-4, process Chinese cabbage seed, example 2 in contrast; After the water soluble fertilizer of embodiment 1 preparation is diluted to 100 times, 200 times, 400 times, 500 times, 800 times with deionized water, process respectively Chinese cabbage seed, be denoted as C1, C2, C3, C4, C5;
(2) at the bottom of culture dish, place two of filter paper, in each culture dish, 20 seeds are evenly placed respectively, get each 5ml of aforesaid liquid in culture dish, wetting filter paper, covers culture dish, be put in 25 ℃ of constant incubators and cultivate 24h, then with deionized water in contrast, percentage of germination and the root of measuring seed are long, and each is processed after counterpoise is answered 3 times and is averaging, and obtain the seed germination index that each is processed, seed germination assessment of indices result is as shown in table 7.
The measurement result of table 7 Chinese cabbage seed percentage of germination, germination index
| ? | Germination index (GI) | Percentage of germination (%) |
| Reference examples 1 | —— | 98.3 |
| Reference examples 2 | —— | 6.7 |
| C1 | 0 | 96.9 |
| C2 | 1.022 | 98.1 |
| C3 | 0.9302 | 97.2 |
| C4 | 1.0521 | 98.7 |
| C5 | 0.9293 | 97.6 |
The measurement result of table 7 can be found out:
1) the water soluble fertilizer that prepared by the present invention dilution aftertreatment Chinese cabbage seed carries out germination test, and the percentage of germination of seed is up to 98.3%, and with the rate of emergence of natural pond liquid processing, only has 6.7% separately;
2) process seed with deionized water and compare, the seed germination index of natural pond liquid is 0, illustrates that the direct natural pond immersion bubble seed toxicity of using is very large, is unfavorable for seed germination;
3) the water soluble fertilizer dilution aftertreatment seed that adopts the present invention to prepare, the germination index of seed is all more than 0.8, explanation is soaked seed by after 100 times, 200 times, 400 times, 500 times, 800 times of water soluble fertilizer of the present invention dilutions, to the equal nontoxicity of seed germination;
4) by 400 times of aftertreatment seeds of water soluble fertilizer dilution of the present invention, the germination index of seed reaches 1.0521, higher than the seed germination index of 100 times, 200 times, 500 times, 800 times of dilutions, illustrate 400 times of water soluble fertilizer dilutions of the present invention best to improving seed germination index.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify and all should be equivalent substitute mode, within being included in protection scope of the present invention.
This research selects anaerobic fermentation residues-natural pond liquid as the mother liquor of preparing water-soluble fertilizer, successfully prepares containing humic acid water-soluble fertilizer, and this water-soluble fertilizer meets NY1106-2010 standard substantially.Then adopt seed germination exponential method to characterize this security containing humic acid water-soluble fertilizer.Result shows: directly very large by natural pond immersion bubble seed toxicity, be unfavorable for seed germination; And soak seed after will diluting 100 times, 200 times, 400 times, 500 times, 800 times containing humic acid water-soluble fertilizer, to the equal nontoxicity of seed germination; And best to improving seed germination index while diluting 400 times.
Claims (10)
1. a preparation method for water soluble fertilizer, is characterized in that raw material urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid and natural pond liquid to mix.
2. preparation method as claimed in claim 1, the proportioning that it is characterized in that described raw material is that every 1L natural pond liquid comprises urea 15-25g, potassium primary phosphate 147-180g, saltpetre 90-95g, biochemical fulvic acid 120-160g, washing liquid 8-13ml.
3. preparation method as claimed in claim 2, the proportioning that it is characterized in that described raw material is that every 1L natural pond liquid comprises urea 15-20g, potassium primary phosphate 170-175g, saltpetre 90-95g, biochemical fulvic acid 140-160g, washing liquid 8-10ml.
4. the preparation method as described in as arbitrary in claim 1-3, is characterized in that described proportioning raw materials is that every 1L natural pond liquid comprises urea 20g, potassium primary phosphate 172.25g, saltpetre 90.6g, biochemical fulvic acid 155g, washing liquid 10ml.
5. the preparation method as described in as arbitrary in claim 1-3, is characterized in that content >=55% of xanthohumic acid in described biochemical fulvic acid.
6. the preparation method as described in as arbitrary in claim 1-3, is characterized in that feces of livestock and poultry and the dirty rinse water of excrement that described natural pond liquid is livestock and poultry farm form through anaerobically fermenting.
7. a preparation method for water soluble fertilizer, is characterized in that comprising as follows step in sequence:
1) according to following proportioning, get the raw materials ready
2) in the liquid of natural pond, add successively urea, potassium primary phosphate, saltpetre, biochemical fulvic acid, washing liquid, carry out stir process, dissolve, mix and get final product.
8. preparation method as claimed in claim 7, is characterized in that step 2) described in stir process process, whipping temp is 40-60 ℃.
9. preparation method as claimed in claim 7 or 8, is characterized in that step 2) described in stir process process, stirring velocity is 150-350rpm.
10. preparation method as claimed in claim 7 or 8, is characterized in that step 1) described in the proportioning of raw material be that every 1L natural pond liquid comprises urea 15-20g, potassium primary phosphate 170-175g, saltpetre 90-95g, biochemical fulvic acid 140-160g, washing liquid 8-10ml.
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| CN105837298A (en) * | 2016-06-21 | 2016-08-10 | 唐山明仁生物能开发有限公司 | Biogas slurry liquid organic fertilizer and preparation method and using method thereof |
| CN106518314A (en) * | 2016-10-17 | 2017-03-22 | 农业部规划设计研究院 | Method for using biogas slurry to prepare liquid manure containing humic acid |
| CN109134028A (en) * | 2017-06-15 | 2019-01-04 | 中国农业科学院农业资源与农业区划研究所 | A kind of formula and preparation method of fructus lycii special organic and inorganic composite biogas liquid fertilizer |
| CN112479791A (en) * | 2020-12-02 | 2021-03-12 | 陕西天秦农产品开发有限公司 | Water-soluble fertilizer for agricultural production and preparation method thereof |
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Effective date of registration: 20200728 Address after: 068258 Beigou, fanxiying village, fuyingzi Town, Luanping county, Chengde City, Hebei Province Patentee after: HEBEI LONGQING BIO-TECH Co.,Ltd. Address before: 102206 No. 7 Nong Road, Huilongguan, Beijing, Changping District Patentee before: BEIJING University OF AGRICULTURE |
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