CN107698339A - A kind of production method of water soluble fertilizer - Google Patents
A kind of production method of water soluble fertilizer Download PDFInfo
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- CN107698339A CN107698339A CN201711092746.XA CN201711092746A CN107698339A CN 107698339 A CN107698339 A CN 107698339A CN 201711092746 A CN201711092746 A CN 201711092746A CN 107698339 A CN107698339 A CN 107698339A
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- fertilizer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
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Abstract
The invention provides a kind of production method of water soluble fertilizer, its step is：The mixture of first 1~3% polyvinyl alcohol that its weight is added in the aqueous solution of humic-acid kind compound, polyvinyl acetate and polyvinylpyrrolidone reacts to obtain reactant a, then reactant a and nitrogenous fertilizer, phosphate fertilizer, potash fertilizer hybrid reaction, reactant b is obtained, water-soluble fertilizer then is obtained to reactant b dehydrations granulation drying；The water-soluble fertilizer can provide the nutrient of general equilibrium for crop, and can increase fertilizer application effect, promote crop to the Nutrient Absorption in soil, the stable state for keeping fertilizer in soil, promotion and help plant growth and, significantly improve the complete water soluble fertilizer of utilization rate of fertilizer, moreover it is possible to realize the effect of sustained release.
Description
Technical field
The invention belongs to fertilizer production field, more particularly to a kind of production method of water soluble fertilizer.
Background technology
Water soluble fertilizer (Water Soluble Fertilizer, abbreviation WSF), be it is a kind of can be with completely soluble more
Element compound fertilizer, it can promptly be dissolved in the water, it is easier to it is absorbed by crops, and also its absorption rate is of a relatively high, more
For crucially it can apply to the industrialized agricultures such as sprinkling irrigation, drip irrigation, realize water-fertilizer integral, reach the effect that water-saving saves fertile saving of labor
Energy.In general, water soluble fertilizer can containing whole nutrients required for plant growth, as N, P, K, Ca, Mg, S with
And trace element etc..Water soluble fertilizer is a quick-acting fertilizer, and grower can be allowed to see effect and the performance of fertilizer faster,
Fertilizer formula can be adjusted according to the different growing ways of crop at any time.Also, the application process of water soluble fertilizer is very simple
Just, it can include applying fertilizer when the modes such as sprinkling irrigation, drip irrigation are irrigated with irrigation water, both saved water, saved work again
Power, this today grown to even greater heights in labor cost are obvious using the effect of water soluble fertilizer.Due to water-soluble fertilizer
The application process of material is application with irrigation water so that fertilising it is extremely uniform, this also for improve the yield and quality established it is solid
Basis.
, many defects be present in current existing water soluble fertilizer technology：As including nutrient is not comprehensive, it is impossible to for crop or
Soil supplements organic nutrition or organic matter, available nutrient content are low, and nutrient structure is unreasonable, it is impossible to provides balanced support for crop
Point, effective ingredient is unstable after being manured into soil, easily leaching loss or volatilization loss, and fertilizer synergistic is not made after being manured into soil, is kept
Stable state, promotion plant growth and the effect that strengthens crop anti-adversity of the fertilizer in soil, it is required to be only to provide crop institute
Nutrient.So water soluble fertilizer utilization rate cannot get due raising.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of production method of water soluble fertilizer, it passes through following skill
Art scheme is achieved.
The invention provides a kind of production method of water soluble fertilizer, its method is：First in the water of humic-acid kind compound
The mixture that 1~3% polyvinyl alcohol of its weight, polyvinyl acetate and polyvinylpyrrolidone are added in solution reacts
To reactant a, then reactant a and nitrogenous fertilizer, phosphate fertilizer, potash fertilizer hybrid reaction, obtain reactant b, and then reactant b is dehydrated
Granulation drying obtains water-soluble fertilizer；The mixed proportion of wherein reactant and nitrogenous fertilizer, phosphate fertilizer, potash fertilizer is：0.5-1：0.5-1.5∶
0.9-2.5: 1-3, and the described and mixture of polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone mixed proportion
For 2-4:0.5-1:1-3；Contain 20~30% ammonium carbonate in described nitrogenous fertilizer；Contain 40~50% carbon in described potash fertilizer
Sour potassium.
Further, described humic-acid kind compound derives from weathered coal, lignite, peat or plant fermentation.
Further, described humic-acid kind compound is ulmic acid, humic acid, fulvic acid and its monovalent soluble
One or more in salt.
Further, the component of the described following parts by weight of humic-acid kind compound：20~30 parts of ulmic acids, 10~20 parts
Humic acid, 10~15 parts of fulvic acids, 5~10 parts of ulmic acid potassium, 0.5~1 part of ulmic acid sodium, 1~3 part of humic acid magnesium, 2~5 parts
Humic acid potassium.
Further, reactant a is with nitrogenous fertilizer, phosphate fertilizer, potash fertilizer hybrid reaction, being additionally added adding for its gross weight 5~10%
Add agent, described additive includes the component of following parts by weight：20~30 parts of kaolin, 5~10 parts of carboxymethyl celluloses, 1~3
Part potassium methyl silicate, 1~3 part of alginic acid, 1~3 part of ATS (Ammonium thiosulphate), 0.5~1 part of boric acid.
Further, its production method is：
1) 1~3% polyvinyl alcohol, the polyvinyl acetate of its weight are first added in the aqueous solution of humic-acid kind compound
The mixture of ester and polyvinylpyrrolidone is added in reactor, and temperature is adjusted to 35~40 DEG C, and pressure is adjusted to 2~4 big
Air pressure, 3~5h of stirring reaction, obtain reactant a；
2) potassium carbonate in the first ammonium carbonate that nitrogenous fertilizer is added in reactant a, potash fertilizer, is stirred under 2~4 atmospheric pressure of normal temperature
3~5h is reacted, additive normal temperature and pressure is then added and reacts 1~2h；It is eventually adding remaining nitrogenous fertilizer, phosphate fertilizer and remaining potassium
Fertilizer obtains reactant b in 40~45 DEG C of 0.5~1h of synthesis under normal pressure；
3) water-soluble fertilizer is obtained to reactant b dehydrations granulation drying.
Further, before reactant b drying, it is mixed into 3~5% calcium monohydrogen phosphate of its weight and 0.03~0.05% micro-
Secondary element.
The beneficial effects of the present invention are：Water-soluble fertilizer addition polyvinyl alcohol produced by the invention, polyvinyl acetate and
The mixture of polyvinylpyrrolidone reacts with humic-acid kind compound, can realize the effect of sustained release；Add kaolin, carboxylic first
The additive that base cellulose, potassium methyl silicate, alginic acid, ATS (Ammonium thiosulphate) and boric acid form can slow down point of water-soluble fertilizer
Solution, increases its holding time；And by the rational design of production method, the generation calcium carbonate when adding calcareous fertilisers is effectively avoided to sink
Form sediment so that each element in raw material is reasonably utilized；The water-soluble fertilizer can provide the nutrition member of general equilibrium for crop
Element, and can increase fertilizer application effect, promote crop to the Nutrient Absorption in soil, keep stable shape of the fertilizer in soil
State, promotion and help plant growth and, significantly improve the complete water soluble fertilizer of utilization rate of fertilizer, moreover it is possible to realize the work of sustained release
With.
Meanwhile in order to prove beneficial effects of the present invention, present invention also offers tests below example：
Experiment：
Experimental group one：The water solubility fertilizer that the following example one~tetra- makes is selected, respectively marked as A1, A2, A3, A4, is divided
Wheat Yong Yu not planted；And the calcium monohydrogen phosphate of A1, A2, A3 addition 4% and 0.04% trace element.
Experimental group two：The water solubility fertilizer that the following example one~tetra- makes is selected, respectively marked as B1, B2, B3, B4,
Placed 50 days under normal temperature, be then respectively used to plant wheat；And the calcium monohydrogen phosphate of B1, B2, B3 addition 4% and 0.04% micro
Element.
Experimental group three：The water solubility fertilizer that the following example one~tetra- makes is selected, respectively marked as C1, C2, C3, C4,
Placed 100 days under normal temperature, be then respectively used to plant wheat；And the calcium monohydrogen phosphate of C1, C2, C3 addition 4% and 0.04% micro-
Secondary element.
Experimental group four：The water solubility fertilizer that the following example one~tetra- makes is selected, respectively marked as D1, D2, D3, D4,
Placed 150 days under normal temperature, be then respectively used to plant wheat；And the calcium monohydrogen phosphate of C1, C2, C3 addition 4% and 0.04% micro-
Secondary element.
Control group：Wheat is planted from the azophoska of routine, nitrogenous fertilizer therein, phosphate fertilizer, the mixed proportion of potash fertilizer are：
0.8：1∶1.5∶2.
The other factors such as above-mentioned experimental group and the fertilizer amount, soil, wheat breed of control group are identical.
Count wheat ten days, the height of seedling of 30 days, yield, table specific as follows：
By upper table, water-soluble fertilizer produced by the invention is in the early stage of fertilising, after wheat planting 30 days, its seedling
Height does more than 4cm than traditional fertilizer, and the per mu yield of its wheat does more than 38kg than tradition, and to water-soluble after preserving 150 days
Property fertilizer fertilizer efficiency influence it is little.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
Embodiment one
A kind of production method of water soluble fertilizer is present embodiments provided, is comprised the following steps：
1) 1~3% polyvinyl alcohol, the polyvinyl acetate of its weight are first added in the aqueous solution of humic-acid kind compound
The mixture of ester and polyvinylpyrrolidone, reactant a is obtained in normal temperature and pressure reaction 5h,
In above-mentioned, described humic-acid kind compound derives from weathered coal, lignite, peat or plant fermentation, humic-acid kind
Compound is the one or more in ulmic acid, humic acid, fulvic acid and its monovalence soluble-salt；The present embodiment is preferred
For the component of following parts by weight：20~30 parts of ulmic acids, 10~20 parts of humic acids, 10~15 parts of fulvic acids, 5~10 parts of ulmic acids
Potassium, 0.5~1 part of ulmic acid sodium, 1~3 part of humic acid magnesium, 2~5 parts of humic acid potassium；More preferably 25 parts of ulmic acids, 15 parts of black corruption
Acid, 12 parts of fulvic acids, 7 parts of ulmic acid potassium, 0.8 part of ulmic acid sodium, 2 parts of humic acid magnesium, 4 parts of humic acid potassium；
The mixed proportion of the mixture of polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone is 2-4:0.5-1:1-
3；The dosage of the present embodiment preferably mixture is 2%, the mixing of polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone
The mixed proportion of thing is 3:0.7:2；
In this step, polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone are in the middle part of humic-acid kind compound
Divide hydrolysis, form the soluble-salt compared with gimmal, realize the effect of efficiency slow release, and have the function that to emulsify and bond；
2) and then reactant a and nitrogenous fertilizer, phosphate fertilizer, potash fertilizer hybrid reaction, 5h is reacted at normal temperatures and pressures and obtains reactant
B, water-soluble fertilizer then is obtained to reactant b dehydrations granulation drying；Wherein reactant and nitrogenous fertilizer, phosphate fertilizer, the mixed proportion of potash fertilizer
For：0.5-1：0.5-1.5: 0.9-2.5: 1-3, the present embodiment is preferably：0.8：1∶1.5∶2；Also, contain in described nitrogenous fertilizer
20~30% ammonium carbonate, the present embodiment are preferably 25% ammonium carbonate；Containing 40~50% potassium carbonate in described potash fertilizer,
The present embodiment is preferably 45% potassium carbonate；
In above-mentioned, the ammonium carbonate and potassium carbonate contained in fertilizer is aobvious alkaline, in reactant a hybrid reactions, makes humic acid
Class compound is partially converted into humic acid salts compound, improves the fertilizer efficiency of product, and avoids generation sediment；And
Making in water solubility fertilizer, the mixture that adding has polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone is reacted,
Longer slow releasing function can be realized.
Embodiment two
The place that the present embodiment is different from embodiment one exists：Reactant a is with nitrogenous fertilizer, phosphate fertilizer, potash fertilizer hybrid reaction, also adding
Enter the additive of its gross weight 5~10%, the present embodiment is preferably 7% additive；Described additive includes following weight
The component of part：20~30 parts of kaolin, 5~10 parts of carboxymethyl celluloses, 1~3 part of potassium methyl silicate, 1~3 part of alginic acid and 1
~3 parts of ATS (Ammonium thiosulphate), 0.5~1 part of boric acid, the present embodiment are preferably 25 parts of kaolin, 8 parts of carboxymethyl celluloses, 2 parts of methyl
Potassium silicate, 2 parts of alginic acids, 2 parts of ATS (Ammonium thiosulphate), 0.7 part of boric acid.
The additive of the present embodiment addition, plays the effect of stable water soluble fertilizer, solves water-soluble fertilizer in the prior art
Holding time is not grown, the problem of easy decomposed metamorphic.
Embodiment three
A kind of production method of water soluble fertilizer is present embodiments provided, is comprised the following steps：
1) 1~3% polyvinyl alcohol, the polyvinyl acetate of its weight are first added in the aqueous solution of humic-acid kind compound
The mixture of ester and polyvinylpyrrolidone is added in reactor, and temperature is adjusted to 35~40 DEG C, and pressure is adjusted to 2~4 big
Air pressure, 3~5h of stirring reaction, obtain reactant a；
The present embodiment selection humic-acid kind compound for following parts by weight component：20~30 parts of ulmic acids, 10~20
Part humic acid, 10~15 parts of fulvic acids, 5~10 parts of ulmic acid potassium, 0.5~1 part of ulmic acid sodium, 1~3 part of humic acid magnesium, 2~5
Part humic acid potassium；More preferably 25 parts of ulmic acids, 15 parts of humic acids, 12 parts of fulvic acids, 7 parts of ulmic acid potassium, 0.8 part of ulmic acid
Sodium, 2 parts of humic acid magnesium, 4 parts of humic acid potassium；
The mixed proportion of the mixture of polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone is 2-4:0.5-1:1-
3；The dosage of the present embodiment preferably mixture is 2%, the mixing of polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone
The mixed proportion of thing is 3:0.7:2；
2) and then reactant a and nitrogenous fertilizer, phosphate fertilizer, potash fertilizer hybrid reaction, 5h is reacted at normal temperatures and pressures and obtains reactant
B, water-soluble fertilizer then is obtained to reactant b dehydrations granulation drying；Wherein reactant and nitrogenous fertilizer, phosphate fertilizer, the mixed proportion of potash fertilizer
For：0.5-1：0.5-1.5: 0.9-2.5: 1-3, the present embodiment is preferably：0.8：1∶1.5∶2；Also, contain in described nitrogenous fertilizer
20~30% ammonium carbonate, the present embodiment are preferably 25% ammonium carbonate；Containing 40~50% potassium carbonate in described potash fertilizer,
The present embodiment is preferably 45% potassium carbonate
In above-mentioned, concretely comprise the following steps：Potassium carbonate in the first ammonium carbonate that nitrogenous fertilizer is added in reactant a, potash fertilizer, in normal temperature 2
3~5h of stirring reaction under~4 atmospheric pressure, then add additive normal temperature and pressure and react 1~2h；It is eventually adding remaining nitrogen
Fertilizer, phosphate fertilizer and remaining potash fertilizer obtain reactant b in 40~45 DEG C of 0.5~1h of synthesis under normal pressure；The reaction causes carbonate to convert
For bicarbonate radical or meeting generating portion carbon dioxide, it is anti-with the solubility calcium in soil when applying to effectively prevent carbonate
Precipitation should be generated, causes soil hardening；
3) water-soluble fertilizer is obtained to reactant b dehydrations granulation drying.
Example IV
The place of the present embodiment difference embodiment three is：Before reactant b drying, 3~5% phosphorus of its weight is mixed into
Sour hydrogen calcium and 0.03~0.05% trace element, the present embodiment is preferably 4% calcium monohydrogen phosphate and 0.05% trace element, described
Trace element have copper, zinc, iron, manganese etc., its element and its ratio are same as routine techniques；The present embodiment is supplemented with calcareous fertilisers and micro
Element, in reactant b generating process, it, which reacts, causes carbonate to be converted into bicarbonate radical, effectively prevent to form calcium carbonate
Precipitation；The present embodiment make it that manufactured water-soluble each nutrient of fertilizer is complete, and reasonable mixture ratio, when in use, it is not necessary to add again
Add other fertilizer, you can meet plant growth.
Claims (7)
1. a kind of production method of water soluble fertilizer, it is characterised in that its step is：First in the aqueous solution of humic-acid kind compound
The mixture of middle 1~3% polyvinyl alcohol for adding its weight, polyvinyl acetate and polyvinylpyrrolidone reacts to obtain instead
Thing a is answered, then reactant a and nitrogenous fertilizer, phosphate fertilizer, potash fertilizer hybrid reaction, obtain reactant b, and then reactant b is dehydrated and is granulated
Drying obtains water-soluble fertilizer；Wherein reactant a and the mixed proportion of nitrogenous fertilizer, phosphate fertilizer, potash fertilizer are：0.5-1：0.5-1.5∶0.9-
2.5: 1-3, and the mixed proportion of the mixture of the polyvinyl alcohol, polyvinyl acetate and polyvinylpyrrolidone is 2-4:
0.5-1:1-3；Contain 20~30% ammonium carbonate in described nitrogenous fertilizer；Contain 40~50% potassium carbonate in described potash fertilizer.
2. the production method of water soluble fertilizer as claimed in claim 1, it is characterised in that：Described humic-acid kind compound is come
Come from weathered coal, lignite, peat or plant fermentation.
3. the production method of water soluble fertilizer as claimed in claim 1, it is characterised in that：Described humic-acid kind compound is
One kind in ulmic acid and its monovalent soluble salt, humic acid and its monovalent soluble salt, fulvic acid and its monovalent soluble salt
It is or a variety of.
4. the production method of water soluble fertilizer as claimed in claim 3, it is characterised in that：Described humic-acid kind compound with
The component of lower parts by weight：20~30 parts of ulmic acids, 10~20 parts of humic acids, 10~15 parts of fulvic acids, 5~10 parts of ulmic acid potassium,
0.5~1 part of ulmic acid sodium, 1~3 part of humic acid magnesium, 2~5 parts of humic acid potassium.
5. the production method of water soluble fertilizer as claimed in claim 1, it is characterised in that：Reactant a and nitrogenous fertilizer, phosphate fertilizer, potassium
In fertile hybrid reaction, the additive of its gross weight 5~10% is additionally added, described additive includes the component of following parts by weight：
20~30 parts of kaolin, 5~10 parts of carboxymethyl celluloses, 1~3 part of potassium methyl silicate, 1~3 part of alginic acid, 1~3 part of thio sulphur
Sour ammonium, 0.5~1 part of boric acid.
6. the production method of water soluble fertilizer as claimed in claim 5, it is characterised in that：Comprise the following steps：
1) first added in the aqueous solution of humic-acid kind compound 1~3% polyvinyl alcohol of its weight, polyvinyl acetate and
The mixture of polyvinylpyrrolidone is added in reactor, and temperature is adjusted to 35~40 DEG C, and pressure is adjusted to 2~4 atmospheric pressure,
3~5h of stirring reaction, obtain reactant a；
2) potassium carbonate in the first ammonium carbonate that nitrogenous fertilizer is added in reactant a, potash fertilizer, the stirring reaction under 2~4 atmospheric pressure of normal temperature
3~5h, then add 1~2h of additive normal temperature and pressure stirring reaction；It is eventually adding remaining nitrogenous fertilizer, phosphate fertilizer and remaining potassium
Fertilizer reacts 0.5~1h in 40~45 DEG C of atmospheric agitations, obtains reactant b；
3) water-soluble fertilizer is obtained to reactant b dehydrations granulation drying.
7. the production method of the water soluble fertilizer as described in claim 1 or 6, it is characterised in that：Before reactant b drying, mix
Enter 3~5% calcium monohydrogen phosphate and 0.03~0.05% trace element of its weight.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110988270A (en) * | 2019-12-24 | 2020-04-10 | 南通中智检测服务有限公司 | Method for measuring content of quick-acting metal in solid water-insoluble fertilizer |
| WO2023146420A1 (en) * | 2022-01-26 | 2023-08-03 | Zbigniew Zubala Przedsiębiorstwo Produkcyjno-Handlowe "Ekodarpol" | Manufacturing method of encapsulated organic and mineral fertilizer, with an extended action, in granular form |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110988270A (en) * | 2019-12-24 | 2020-04-10 | 南通中智检测服务有限公司 | Method for measuring content of quick-acting metal in solid water-insoluble fertilizer |
| WO2023146420A1 (en) * | 2022-01-26 | 2023-08-03 | Zbigniew Zubala Przedsiębiorstwo Produkcyjno-Handlowe "Ekodarpol" | Manufacturing method of encapsulated organic and mineral fertilizer, with an extended action, in granular form |
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