CN104987213A - Universal anil slow-release blended fertilizer and preparation method thereof - Google Patents
Universal anil slow-release blended fertilizer and preparation method thereof Download PDFInfo
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Abstract
The invention provides universal anil slow-release blended fertilizer which is prepared by mixing early-stage fertilizer, medium-term fertilizer and later-period fertilizer. The early-stage fertilizer is particles composed of early-stage fertilizer inorganic fertilizer nuclear bodies and early-stage fertilizer hydrogel layers wrapping the early-stage fertilizer inorganic fertilizer nuclear bodies. The medium-term fertilizer is particles composed of medium-term fertilizer inorganic fertilizer nuclear bodies, and medium-term fertilizer chicken manure organic fertilizer layers and medium-term fertilizer hydrogel layers which wrap the medium-term fertilizer inorganic fertilizer nuclear bodies from inside to outside. The later-period fertilizer is particles composed of later-period fertilizer inorganic fertilizer nuclear bodies, and later-period fertilizer chicken manure organic fertilizer layers, later-period fertilizer inorganic fertilizer diatom layers and later-period fertilizer hydrogel layers which wrap the later-period fertilizer inorganic fertilizer nuclear bodies from inside to outside. The invention provides a preparation method of the universal anil slow-release blended fertilizer, necessary fertilizer nutrients can be better obtained during the whole growth circles of plants, and normal growth of the plants at all growth stages can be promoted.
Description
Technical field
The present invention relates to inorganic mixed organic manure technical field of fertilizers, especially adopt coated release-controlled, adsorption sustained-release with universal bulk blending slow release fertilizer of a kind of anil reaching comprehensive slow release effect and preparation method thereof.
Background technology
At modern agriculture,, in the production of the association areas such as livestock industry, there is many new-type fertilizers in forestry, have composite fertilizer, fertilizer, bio-fertilizer, compound organic and inorganic fertilizer, biological organic fertilizer, Organic-inorganic biological fertilizer, slow-release fertilizer, Controlled Release Fertilizer, these fertilizer differ from one another.Composite fertilizer has that nutrient content is high, minor component is few, utilization rate of fertilizer is high, the advantages such as convenient are used in storage, in promotion higher yield of crops stable yields, play important role.
Coated slow-release composite fertilizer is a kind of important classification in composite fertilizer, the research emphasis of Ye Shi China Growth of Chemical Fertilizer Industry, its slowly-releasing principle is the hydrophobic substance at fertiliser granulates Surface coating thin layer, thus the nutrient of inside is discharged in soil slowly, constantly to plant-growth supply nutrient, effectively raise the utilization ratio of fertilizer.But existing slow-release compound fertilizer also exists certain shortcoming, be mainly manifested in nutrients ratio relatively fixing, be difficult to meet plant, particularly anil, Different growth phases to the demand of nutrition, thus reduces fertilizer efficiency, affect plant-growth, cause the underproduction reduction of income.
Summary of the invention
Technical problem to be solved by this invention is to provide universal bulk blending slow release fertilizer of a kind of anil and preparation method thereof, existing fertilizer nutrient ratio can be solved relatively fixing, be difficult to meet the defect of plant Different growth phases to the demand of nutrition, anil can be made better to obtain required fertilizer nutrient in growth cycle whole process, promote that anil is at the normal growth growing each stage.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the universal bulk blending slow release fertilizer of a kind of anil,
This bulk blending slow release fertilizer by early stage fertilizer, mid-term fertilizer and later stage fertilizer mixed preparing form, the weight percent of three kinds of fertilizer is respectively:
Early stage fertilizer 15-25%, mid-term fertilizer 25-35%, later stage fertilizer 40-55%;
Wherein, early stage, fertilizer was by fertilizer inorganic fertilizer nucleome and the particle that early stage, fertilizer hydrogel layer formed that is wrapped in outside fertilizer inorganic fertilizer nucleome in early stage in early stage;
Mid-term fertilizer be by mid-term fertilizer inorganic fertilizer nucleome, be wrapped in fertilizer chicken manure organic fertilizer layer and particle that mid-term, fertilizer hydrogel layer formed in mid-term outside fertilizer inorganic fertilizer nucleome in mid-term from the inside to the outside;
Later stage fertilizer is by later stage fertilizer inorganic fertilizer nucleome, is wrapped in the particle that later stage fertilizer chicken manure organic fertilizer layer, later stage fertilizer diatomite layer and later stage fertilizer hydrogel layer outside later stage fertilizer inorganic fertilizer nucleome form from the inside to the outside.
The weight percent of three kinds of fertilizer is respectively fertilizer 20% in early stage, mid-term fertilizer 30%, later stage fertilizer 50%.
A preparation method for the universal bulk blending slow release fertilizer of above-mentioned anil, the method comprises the following steps:
1) early stage fertilizer preparation:
1-1) prepare the raw material of following weight part:
Urea 16-20 part, monoammonium phosphate 15-17 part, potassium sulfate 8-10 part, 80-100 order starch 10-15 part, environment sensitive type hydrogel 10-20 part;
1-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
1-3) starch of above-mentioned weight part is added step 1-2) in the mixing solutions made, heat, until again fully dissolve, be uniformly mixed solution and make it form colloid;
1-4) by step 1-3) colloid made pours on moulding male and female mold and cools, condense into particle, form fertilizer inorganic fertilizer nucleome in early stage to it;
1-5) by step 1-4) the inorganic fertilizer nucleome made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making inorganic fertilizer nucleome be wrapped up rear formation fertilizer hydrogel layer in early stage completely by hydrogel, oven drying at low temperature,
I.e. obtained fertilizer in earlier stage;
2) mid-term fertilizer preparation:
2-1) prepare the raw material of following weight part:
Urea 10-13 part, monoammonium phosphate 11-13 part, potassium sulfate 16-21 part, 80-100 order starch 10-15 part, fowl dung fermentation fertilizer powder 30-50 part, environment sensitive type hydrogel 10-20 part;
2-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
2-3) starch of above-mentioned weight part is added step 2-2) in the mixing solutions made, heat, until again fully dissolve, be uniformly mixed solution and make it form colloid;
2-4) by step 2-3) colloid made pours on moulding male and female mold and cools, condense into particle, form fertilizer inorganic fertilizer nucleome in mid-term to it;
2-5) by step 2-4) the fertilizer inorganic fertilizer nucleome in mid-term made adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in fertilizer inorganic fertilizer core surface formation in mid-term fertilizer chicken manure organic fertilizer layer in mid-term completely;
2-6) by step 2-5) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation fertilizer in mid-term hydrogel layer completely by hydrogel, oven drying at low temperature,
Namely fertilizer in mid-term is obtained;
3) preparation of later stage fertilizer:
3-1) prepare the raw material of following weight part:
Urea 10-13 part, monoammonium phosphate 15-18 part, potassium sulfate 11-15 part, 80-100 order starch 10-15 part, fowl dung fermentation fertilizer powder 40-60 part, diatomite powder 20-25 part, environment sensitive type hydrogel 10-20 part;
3-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
3-3) starch of above-mentioned weight part is added step 3-2) in the mixing solutions made, heat, until again fully dissolve, be uniformly mixed solution and make it form colloid;
3-4) by step 3-3) colloid made pours on moulding male and female mold and cools, condense into particle, form later stage fertilizer inorganic fertilizer nucleome to it;
3-5) by step 3-4) the later stage fertilizer inorganic fertilizer nucleome made adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in later stage fertilizer inorganic fertilizer nucleome outside surface completely form later stage fertilizer chicken manure organic fertilizer layer;
3-6) by step 3-5) obtained fertiliser granulates adds in the diatomite powder of above-mentioned weight part, put into granulating disc to carry out second time and to roll granulation, diatomite is wrapped in completely later stage fertilizer chicken manure organic fertilizer layer outside surface and forms later stage fertilizer diatomite layer;
3-7) by step 3-6) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation later stage fertilizer hydrogel layer completely by hydrogel, oven drying at low temperature,
I.e. obtained later stage fertilizer;
4) by above-mentioned three kinds of obtained fertilizer by weight percentage
Early stage fertilizer 15-25%, mid-term fertilizer 25-35%, the ratio mixed preparing of later stage fertilizer 40-55%, the i.e. obtained universal bulk blending slow release fertilizer of above-mentioned anil.
Step 1-5) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
Step 2-6) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
Step 3-7) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
Step 1-4), 2-4) and 3-4) in, the moulding male and female mold of employing is: the hemispherical-shaped aperture (11) the plate face of plate body (10) evenly offering multiple indent.
Environment sensitive type hydrogel is:
Take polymerization single polymerization monomer as raw material, N, N'-methylene-bisacrylamide is linking agent, and 2-oxoglutaric acid is light trigger, and polyvinyl alcohol or chitosan solution are polymeric additive, adopts environment sensitive type hydrogel prepared by light initiation polymerization method;
Wherein, polymerization single polymerization monomer is any one in diacetone-acryloamide(DAA), acrylamide or vinylformic acid or multiple mixture.
The preparation method of above-mentioned environment sensitive type hydrogel is:
A, preparation pre-gathering solutions
With following raw material for solute:
Polymerization single polymerization monomer 75-99.7 weight part, 2-oxoglutaric acid 0.1-1 weight part, N, N'-methylene-bisacrylamide 0.1-25 weight part, polymeric additive 0.1-10 weight part;
Take deionized water as solvent, the mass ratio of solute and solvent is 1:50;
Be mixed with pre-gathering solutions;
Under b, the pre-gathering solutions made by step a are placed in ultraviolet radiation, expose direct polymerization after 5-30 minute and become cross-linked polymer;
C, the cross-linked polymer made by step b put into the apparatus,Soxhlet's deionized water extracting 20-28 hour boiled, and put into vacuum drying oven dry after taking-up, i.e. obtained described environment sensitive type hydrogel.
Universal bulk blending slow release fertilizer of a kind of anil provided by the invention and preparation method thereof, its formula and composition are according to soil available nutrient contamination characteristic and anil desired nutritional composition, quantity and regulation of fertilizer requirement thereof, and design by the predetermined target output of Different Crop, its beneficial effect is as follows:
1, existing fertilizer nutrient ratio can be solved relatively fixing, be difficult to meet the defect of plant Different growth phases to the demand of nutrition, reduce the difficulty that slow-release fertilizer makes, solve slow-release fertilizer and how to control slow release speed in each period of plant-growth, ensure that the timely and sufficient key problem in technology of each growth phase nutrient supply, overcome the problem that slow-release fertilizer cost is high.
2, after using, early stage, the inorganic fertilizer nucleome of fertilizer first dissolved by a certain percentage, ensure that each nutritive ingredient is fully dissolved in plant-growth early stage, compensate for anil growth phase not enough because fertilizer first will be dissolved in the fertilizer that water causes by plant utilization again, mid-term, fertilizer added fowl dung fermentation fertilizer fertilizer integument on fertilizer inorganic fertilizer nucleome in mid-term top layer, except the trace elements such as supplementary n-p-k element and calcium magnesium sulphur, reach slow release effect by parcel; Later stage fertilizer adds diatomite layer, and diatomite adsorption performance is comparatively strong, can control the release of nutrient further, and anil can be made better to obtain required fertilizer nutrient in growth cycle whole process, promotes that anil is at the normal growth growing each stage.
3, preparation method's technical difficulty is little, and production cost is low, easy to use, and preparation flexibly, is easily promoted.
4, the change that obtained environment sensitive type hydrogel self energy sensing external environment is small or stimulation, and can corresponding physical structure be produced and chemical property even suddenlys change, initial form can be returned to after deformation, can long-term role, the minor alteration of soil physico-chemical property can better be responded, thus delay control slowly-releasing more targetedly.
5, formula Raw wide material sources, take full advantage of raw material common in daily life production, while reduction production cost, improve the single fixing phenomenon of conventional composite fertilizer nutrient, mode preparation method adopting three class fertilizer mix-with inorganic nitrogen, phosphorus, potassium is the fertilizer in early stage of core, with inorganic nitrogen, phosphorus, potassium is core, with containing a large amount of organic and multiple in, the fowl dung fermentation fertilizer of trace element is the fertilizer and with inorganic nitrogen in mid-term of carrier, phosphorus, potassium is core, with containing a large amount of organic and multiple in, the fowl dung fermentation fertilizer of trace element is carrier, at bag by diatomaceous later stage fertilizer, coordinate functional adjustment release function of cohering material, the high efficiency of inorganic fertilizer and the long-lasting of fertilizer are in one, thus reach the effect of breeding combination and agricultural sustainable development.
6, achieve " the three fertile unifications " of bulk blending slow release fertilizer, fertilizer and inorganic fertilizer; Also be simultaneously be means with slowly-releasing, controlled release efficient, long-acting, synergy are " triple effect unification " all over the body.Compared with common Chemical Mixed Fertilizer, the most outstanding feature of the present invention to be applied fertilizer to magnolia targetedly, ensure that nutrient is sufficient simultaneously, in good time suitablely, also have in addition and reduce fertilizer amount, improve chemical fertilizer utilization ratio, improve quality of agricultural product, reduce production cost, to preserve the ecological environment and as advantages such as pollution-free food production data; There is equilibrium the effects such as nutrition, culture fertility, the resistance of enhancing crop, the objectionable impurities improved in quality of agricultural product and reduction agricultural-food are provided, thus ensure the supply of nutrient at each growth period, fertilizer efficiency is more lasting, for the whole period of plant growth provides good growing environment, improve soil vitality, reduce disease and pest.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of the present invention's fertiliser granulates in early stage;
Fig. 2 is the structural representation of fertiliser granulates in mid-term of the present invention;
Fig. 3 is the structural representation of fertiliser granulates in mid-term of the present invention;
The structural representation of moulding male and female mold of Fig. 4 for adopting in preparation method of the present invention.
Embodiment
Embodiment one
As Figure 1-3, the universal bulk blending slow release fertilizer of a kind of anil,
This bulk blending slow release fertilizer by early stage fertilizer, mid-term fertilizer and later stage fertilizer mixed preparing form, the weight percent of three kinds of fertilizer is respectively:
Early stage fertilizer 20%, mid-term fertilizer 30%, later stage fertilizer 50%;
Wherein, early stage, fertilizer was by fertilizer inorganic fertilizer nucleome 1 and be wrapped in the particle that the fertilizer hydrogel layer 2 in early stage outside fertilizer inorganic fertilizer nucleome 1 in early stage forms in early stage, as shown in Figure 1;
Mid-term fertilizer be by mid-term fertilizer inorganic fertilizer nucleome 3, be wrapped in fertilizer chicken manure organic fertilizer layer 4 and particle that mid-term, fertilizer hydrogel layer 5 formed in mid-term outside fertilizer inorganic fertilizer nucleome 3 in mid-term from the inside to the outside, as shown in Figure 2;
Later stage fertilizer is by later stage fertilizer inorganic fertilizer nucleome 6, is wrapped in the particle that later stage fertilizer chicken manure organic fertilizer layer 7, later stage fertilizer diatomite layer 8 and later stage fertilizer hydrogel layer 9 outside later stage fertilizer inorganic fertilizer nucleome 6 form from the inside to the outside, as shown in Figure 3.
The weight percent of three kinds of fertilizer is respectively
Early stage, the particle diameter of fertiliser granulates was 3.0-3.5 millimeter;
Mid-term, the particle diameter of fertiliser granulates was 3.5-5.0 millimeter;
The particle diameter of later stage fertiliser granulates is 5.0-6.5 millimeter.
Embodiment two
As Figure 1-3, the universal bulk blending slow release fertilizer of a kind of anil,
This bulk blending slow release fertilizer by early stage fertilizer, mid-term fertilizer and later stage fertilizer mixed preparing form, the weight percent of three kinds of fertilizer is respectively:
Early stage fertilizer 15%, mid-term fertilizer 25%, later stage fertilizer 40%;
Wherein, early stage, fertilizer was by fertilizer inorganic fertilizer nucleome 1 and be wrapped in the particle that the fertilizer hydrogel layer 2 in early stage outside fertilizer inorganic fertilizer nucleome 1 in early stage forms in early stage, as shown in Figure 1;
Mid-term fertilizer be by mid-term fertilizer inorganic fertilizer nucleome 3, be wrapped in fertilizer chicken manure organic fertilizer layer 4 and particle that mid-term, fertilizer hydrogel layer 5 formed in mid-term outside fertilizer inorganic fertilizer nucleome 3 in mid-term from the inside to the outside, as shown in Figure 2;
Later stage fertilizer is by later stage fertilizer inorganic fertilizer nucleome 6, is wrapped in the particle that later stage fertilizer chicken manure organic fertilizer layer 7, later stage fertilizer diatomite layer 8 and later stage fertilizer hydrogel layer 9 outside later stage fertilizer inorganic fertilizer nucleome 6 form from the inside to the outside, as shown in Figure 3.
The weight percent of three kinds of fertilizer is respectively fertilizer 20% in early stage, mid-term fertilizer 30%, later stage fertilizer 50%.
Early stage, the particle diameter of fertiliser granulates was 3.0-3.5 millimeter;
Mid-term, the particle diameter of fertiliser granulates was 3.5-5.0 millimeter;
The particle diameter of later stage fertiliser granulates is 5.0-6.5 millimeter.
Embodiment three
As Figure 1-3, the universal bulk blending slow release fertilizer of a kind of anil,
This bulk blending slow release fertilizer by early stage fertilizer, mid-term fertilizer and later stage fertilizer mixed preparing form, the weight percent of three kinds of fertilizer is respectively:
Early stage fertilizer 25%, mid-term fertilizer 35%, later stage fertilizer 55%;
Wherein, early stage, fertilizer was by fertilizer inorganic fertilizer nucleome 1 and be wrapped in the particle that the fertilizer hydrogel layer 2 in early stage outside fertilizer inorganic fertilizer nucleome 1 in early stage forms in early stage, as shown in Figure 1;
Mid-term fertilizer be by mid-term fertilizer inorganic fertilizer nucleome 3, be wrapped in fertilizer chicken manure organic fertilizer layer 4 and particle that mid-term, fertilizer hydrogel layer 5 formed in mid-term outside fertilizer inorganic fertilizer nucleome 3 in mid-term from the inside to the outside, as shown in Figure 2;
Later stage fertilizer is by later stage fertilizer inorganic fertilizer nucleome 6, is wrapped in the particle that later stage fertilizer chicken manure organic fertilizer layer 7, later stage fertilizer diatomite layer 8 and later stage fertilizer hydrogel layer 9 outside later stage fertilizer inorganic fertilizer nucleome 6 form from the inside to the outside, as shown in Figure 3.
The weight percent of three kinds of fertilizer is respectively fertilizer 20% in early stage, mid-term fertilizer 30%, later stage fertilizer 50%.
Early stage, the particle diameter of fertiliser granulates was 3.0-3.5 millimeter;
Mid-term, the particle diameter of fertiliser granulates was 3.5-5.0 millimeter;
The particle diameter of later stage fertiliser granulates is 5.0-6.5 millimeter.
Embodiment four
A preparation method for the universal bulk blending slow release fertilizer of above-mentioned anil, the method comprises the following steps:
1) early stage fertilizer preparation:
1-1) prepare the raw material of following weight part:
16 parts, urea, monoammonium phosphate 15 parts, potassium sulfate 8 parts, 80-100 order starch 10 parts, environment sensitive type hydrogel 10 parts;
1-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
1-3) starch of above-mentioned weight part being added step 1-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
1-4) by step 1-3) colloid made pours on moulding male and female mold and carries out cooling 3-5 minute, condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 1 in early stage;
1-5) by step 1-4) the inorganic fertilizer nucleome 1 made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making inorganic fertilizer nucleome 1 be wrapped up rear formation fertilizer hydrogel layer in early stage 2 completely by hydrogel, oven drying at low temperature,
I.e. obtained fertilizer in earlier stage;
2) mid-term fertilizer preparation:
2-1) prepare the raw material of following weight part:
10 parts, urea, monoammonium phosphate 11 parts, potassium sulfate 16 parts, 80-100 order starch 10 parts, fowl dung fermentation fertilizer powder 30 parts, environment sensitive type hydrogel 10 parts;
2-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
2-3) starch of above-mentioned weight part being added step 2-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
2-4) by step 2-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 3 in mid-term;
2-5) by step 2-4) the fertilizer inorganic fertilizer nucleome in mid-term made 3 adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in surface formation in fertilizer inorganic fertilizer nucleome in mid-term (3) fertilizer chicken manure organic fertilizer layer in mid-term 4 completely;
2-6) by step 2-5) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation fertilizer in mid-term hydrogel layer 5 completely by hydrogel, oven drying at low temperature,
Namely fertilizer in mid-term is obtained;
3) preparation of later stage fertilizer:
3-1) prepare the raw material of following weight part:
10 parts, urea, monoammonium phosphate 15 parts, potassium sulfate 11 parts, 80-100 order starch 10 parts, fowl dung fermentation fertilizer powder 40 parts, diatomite powder 20 parts, environment sensitive type hydrogel 10 parts;
3-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
3-3) starch of above-mentioned weight part being added step 3-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
3-4) by step 3-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condense into particle, form later stage fertilizer inorganic fertilizer nucleome 6 to it;
3-5) by step 3-4) the later stage fertilizer inorganic fertilizer nucleome 6 made adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in later stage fertilizer inorganic fertilizer nucleome (6) outside surface completely form later stage fertilizer chicken manure organic fertilizer layer 7;
3-6) by step 3-5) obtained fertiliser granulates adds in the diatomite powder of above-mentioned weight part, put into granulating disc to carry out second time and to roll granulation, diatomite is wrapped in completely later stage fertilizer chicken manure organic fertilizer layer 7 outside surface and forms later stage fertilizer diatomite layer 8;
3-7) by step 3-6) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation later stage fertilizer hydrogel layer 9 completely by hydrogel, oven drying at low temperature,
I.e. obtained later stage fertilizer;
4) by above-mentioned three kinds of obtained fertilizer by weight percentage
Early stage fertilizer 15%, mid-term fertilizer 30%, the ratio mixed preparing of later stage fertilizer 55%, the i.e. obtained universal bulk blending slow release fertilizer of above-mentioned anil.
Embodiment five
A preparation method for the universal bulk blending slow release fertilizer of above-mentioned anil, the method comprises the following steps:
1) early stage fertilizer preparation:
1-1) prepare the raw material of following weight part:
20 parts, urea, monoammonium phosphate 17 parts, potassium sulfate 10 parts, 80-100 order starch 15 parts, environment sensitive type hydrogel 20 parts;
1-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
1-3) starch of above-mentioned weight part being added step 1-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
1-4) by step 1-3) colloid made pours on moulding male and female mold and carries out cooling 3-5 minute, condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 1 in early stage;
1-5) by step 1-4) the inorganic fertilizer nucleome 1 made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making inorganic fertilizer nucleome 1 be wrapped up rear formation fertilizer hydrogel layer in early stage 2 completely by hydrogel, oven drying at low temperature,
I.e. obtained fertilizer in earlier stage;
2) mid-term fertilizer preparation:
2-1) prepare the raw material of following weight part:
13 parts, urea, monoammonium phosphate 13 parts, potassium sulfate 21 parts, 80-100 order starch 15 parts, fowl dung fermentation fertilizer powder 50 parts, environment sensitive type hydrogel 20 parts;
2-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
2-3) starch of above-mentioned weight part being added step 2-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
2-4) by step 2-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 3 in mid-term;
2-5) by step 2-4) the fertilizer inorganic fertilizer nucleome in mid-term made 3 adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in surface formation in fertilizer inorganic fertilizer nucleome in mid-term (3) fertilizer chicken manure organic fertilizer layer in mid-term 4 completely;
2-6) by step 2-5) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation fertilizer in mid-term hydrogel layer 5 completely by hydrogel, oven drying at low temperature,
Namely fertilizer in mid-term is obtained;
3) preparation of later stage fertilizer:
3-1) prepare the raw material of following weight part:
13 parts, urea, monoammonium phosphate 18 parts, potassium sulfate 15 parts, 80-100 order starch 15 parts, fowl dung fermentation fertilizer powder 60 parts, diatomite powder 25 parts, environment sensitive type hydrogel 20 parts;
3-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
3-3) starch of above-mentioned weight part being added step 3-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
3-4) by step 3-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condense into particle, form later stage fertilizer inorganic fertilizer nucleome 6 to it;
3-5) by step 3-4) the later stage fertilizer inorganic fertilizer nucleome 6 made adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in later stage fertilizer inorganic fertilizer nucleome (6) outside surface completely form later stage fertilizer chicken manure organic fertilizer layer 7;
3-6) by step 3-5) obtained fertiliser granulates adds in the diatomite powder of above-mentioned weight part, put into granulating disc to carry out second time and to roll granulation, diatomite is wrapped in completely later stage fertilizer chicken manure organic fertilizer layer 7 outside surface and forms later stage fertilizer diatomite layer 8;
3-7) by step 3-6) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation later stage fertilizer hydrogel layer 9 completely by hydrogel, oven drying at low temperature,
I.e. obtained later stage fertilizer;
4) by above-mentioned three kinds of obtained fertilizer by weight percentage
Early stage fertilizer 20%, mid-term fertilizer 30%, the ratio mixed preparing of later stage fertilizer 55%, the i.e. obtained universal bulk blending slow release fertilizer of above-mentioned anil.
Embodiment six
A preparation method for the universal bulk blending slow release fertilizer of above-mentioned anil, the method comprises the following steps:
1) early stage fertilizer preparation:
1-1) prepare the raw material of following weight part:
18 parts, urea, monoammonium phosphate 16 parts, potassium sulfate 9 parts, 80-100 order starch 12 parts, environment sensitive type hydrogel 15 parts;
1-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
1-3) starch of above-mentioned weight part being added step 1-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
1-4) by step 1-3) colloid made pours on moulding male and female mold and carries out cooling 3-5 minute, condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 1 in early stage;
1-5) by step 1-4) the inorganic fertilizer nucleome 1 made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making inorganic fertilizer nucleome 1 be wrapped up rear formation fertilizer hydrogel layer in early stage 2 completely by hydrogel, oven drying at low temperature,
I.e. obtained fertilizer in earlier stage;
2) mid-term fertilizer preparation:
2-1) prepare the raw material of following weight part:
11 parts, urea, monoammonium phosphate 12 parts, potassium sulfate 18 parts, 80-100 order starch 12 parts, fowl dung fermentation fertilizer powder 40 parts, environment sensitive type hydrogel 15 parts;
2-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
2-3) starch of above-mentioned weight part being added step 2-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
2-4) by step 2-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 3 in mid-term;
2-5) by step 2-4) the fertilizer inorganic fertilizer nucleome in mid-term made 3 adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in surface formation in fertilizer inorganic fertilizer nucleome in mid-term (3) fertilizer chicken manure organic fertilizer layer in mid-term 4 completely;
2-6) by step 2-5) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation fertilizer in mid-term hydrogel layer 5 completely by hydrogel, oven drying at low temperature,
Namely fertilizer in mid-term is obtained;
3) preparation of later stage fertilizer:
3-1) prepare the raw material of following weight part:
12 parts, urea, monoammonium phosphate 17 parts, potassium sulfate 13 parts, 80-100 order starch 12 parts, fowl dung fermentation fertilizer powder 50 parts, diatomite powder 22 parts, environment sensitive type hydrogel 15 parts;
3-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
3-3) starch of above-mentioned weight part being added step 3-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
3-4) by step 3-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condense into particle, form later stage fertilizer inorganic fertilizer nucleome 6 to it;
3-5) by step 3-4) the later stage fertilizer inorganic fertilizer nucleome 6 made adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in later stage fertilizer inorganic fertilizer nucleome (6) outside surface completely form later stage fertilizer chicken manure organic fertilizer layer 7;
3-6) by step 3-5) obtained fertiliser granulates adds in the diatomite powder of above-mentioned weight part, put into granulating disc to carry out second time and to roll granulation, diatomite is wrapped in completely later stage fertilizer chicken manure organic fertilizer layer 7 outside surface and forms later stage fertilizer diatomite layer 8;
3-7) by step 3-6) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation later stage fertilizer hydrogel layer 9 completely by hydrogel, oven drying at low temperature,
I.e. obtained later stage fertilizer;
4) by above-mentioned three kinds of obtained fertilizer by weight percentage
Early stage fertilizer 25%, mid-term fertilizer 35%, the ratio mixed preparing of later stage fertilizer 40%, the i.e. obtained universal bulk blending slow release fertilizer of above-mentioned anil.
Embodiment seven
A preparation method for the universal bulk blending slow release fertilizer of above-mentioned anil, the method comprises the following steps:
1) early stage fertilizer preparation:
1-1) prepare the raw material of following weight part:
19 parts, urea, monoammonium phosphate 16 parts, potassium sulfate 9 parts, 80-100 order starch 14 parts, environment sensitive type hydrogel 18 parts;
1-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
1-3) starch of above-mentioned weight part being added step 1-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
1-4) by step 1-3) colloid made pours on moulding male and female mold and carries out cooling 3-5 minute, condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 1 in early stage;
1-5) by step 1-4) the inorganic fertilizer nucleome 1 made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making inorganic fertilizer nucleome 1 be wrapped up rear formation fertilizer hydrogel layer in early stage 2 completely by hydrogel, oven drying at low temperature,
I.e. obtained fertilizer in earlier stage;
2) mid-term fertilizer preparation:
2-1) prepare the raw material of following weight part:
12 parts, urea, monoammonium phosphate 12 parts, potassium sulfate 20 parts, 80-100 order starch 13 parts, fowl dung fermentation fertilizer powder 35 parts, environment sensitive type hydrogel 15 parts;
2-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
2-3) starch of above-mentioned weight part being added step 2-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
2-4) by step 2-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condenses into particle to it, forms fertilizer inorganic fertilizer nucleome 3 in mid-term;
2-5) by step 2-4) the fertilizer inorganic fertilizer nucleome in mid-term made 3 adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in surface formation in fertilizer inorganic fertilizer nucleome in mid-term (3) fertilizer chicken manure organic fertilizer layer in mid-term 4 completely;
2-6) by step 2-5) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation fertilizer in mid-term hydrogel layer 5 completely by hydrogel, oven drying at low temperature,
Namely fertilizer in mid-term is obtained;
3) preparation of later stage fertilizer:
3-1) prepare the raw material of following weight part:
11 parts, urea, monoammonium phosphate 16 parts, potassium sulfate 14 parts, 80-100 order starch 14 parts, fowl dung fermentation fertilizer powder 45 parts, diatomite powder 22 parts, environment sensitive type hydrogel 15 parts;
3-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
3-3) starch of above-mentioned weight part being added step 3-2) in the mixing solutions made, heat, Heating temperature is 95-100 degree Celsius, until again fully dissolve, is uniformly mixed solution and makes it form colloid;
3-4) by step 3-3) colloid made pours on moulding male and female mold and carries out cooling (3-5 minute), condense into particle, form later stage fertilizer inorganic fertilizer nucleome 6 to it;
3-5) by step 3-4) the later stage fertilizer inorganic fertilizer nucleome 6 made adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in later stage fertilizer inorganic fertilizer nucleome (6) outside surface completely form later stage fertilizer chicken manure organic fertilizer layer 7;
3-6) by step 3-5) obtained fertiliser granulates adds in the diatomite powder of above-mentioned weight part, put into granulating disc to carry out second time and to roll granulation, diatomite is wrapped in completely later stage fertilizer chicken manure organic fertilizer layer 7 outside surface and forms later stage fertilizer diatomite layer 8;
3-7) by step 3-6) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation later stage fertilizer hydrogel layer 9 completely by hydrogel, oven drying at low temperature,
I.e. obtained later stage fertilizer;
4) by above-mentioned three kinds of obtained fertilizer by weight percentage
Early stage fertilizer 22%, mid-term fertilizer 25%, the ratio mixed preparing of later stage fertilizer 53%, the i.e. obtained universal bulk blending slow release fertilizer of above-mentioned anil.
In above-described embodiment four-seven,
Step 1-5) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
Step 2-6) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
Step 3-7) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
Step 1-4), 2-4) and 3-4) in, the moulding male and female mold of employing is: the hemispherical-shaped aperture 11 plate face of plate body 10 evenly offering multiple indent, as shown in Figure 4;
Environment sensitive type hydrogel is:
Take polymerization single polymerization monomer as raw material, N, N'-methylene-bisacrylamide is linking agent, and 2-oxoglutaric acid is light trigger, and polyvinyl alcohol or chitosan solution are polymeric additive, adopts environment sensitive type hydrogel prepared by light initiation polymerization method;
Wherein, polymerization single polymerization monomer is any one in diacetone-acryloamide(DAA), acrylamide or vinylformic acid or multiple mixture.
The preparation method of above-mentioned environment sensitive type hydrogel is:
A, preparation pre-gathering solutions
With following raw material for solute:
Polymerization single polymerization monomer 75-99.7 weight part, 2-oxoglutaric acid 0.1-1 weight part, N, N'-methylene-bisacrylamide 0.1-25 weight part, polymeric additive 0.1-10 weight part;
Take deionized water as solvent, the mass ratio of solute and solvent is 1:50;
Be mixed with pre-gathering solutions;
Under b, the pre-gathering solutions made by step a are placed in ultraviolet radiation, expose direct polymerization after 5-30 minute and become cross-linked polymer;
C, the cross-linked polymer made by step b put into the apparatus,Soxhlet's deionized water extracting 20-28 hour boiled, and put into vacuum drying oven dry after taking-up, i.e. obtained described environment sensitive type hydrogel.
The moulding male and female mold adopted as shown in Figure 4.
Claims (9)
1. the universal bulk blending slow release fertilizer of anil, is characterized in that:
This bulk blending slow release fertilizer by early stage fertilizer, mid-term fertilizer and later stage fertilizer mixed preparing form, the weight percent of three kinds of fertilizer is respectively:
Early stage fertilizer 15-25%, mid-term fertilizer 25-35%, later stage fertilizer 40-55%;
Wherein, fertilizer was by fertilizer inorganic fertilizer nucleome in early stage (1) and was wrapped in the particle formed fertilizer inorganic fertilizer nucleome (1) fertilizer hydrogel layer in early stage (2) outward in early stage early stage;
Fertilizer was by fertilizer inorganic fertilizer nucleome in mid-term (3), was wrapped in the particle formed in outer fertilizer chicken manure organic fertilizer layer in mid-term (4) in fertilizer inorganic fertilizer nucleome in mid-term (3) and fertilizer hydrogel layer in mid-term (5) from the inside to the outside mid-term;
Later stage fertilizer is by later stage fertilizer inorganic fertilizer nucleome (6), is wrapped in the particle that later stage fertilizer chicken manure organic fertilizer layer (7) outward in later stage fertilizer inorganic fertilizer nucleome (6), later stage fertilizer diatomite layer (8) and later stage fertilizer hydrogel layer (9) form from the inside to the outside.
2. the universal bulk blending slow release fertilizer of a kind of anil according to claim 1, is characterized in that: the weight percent of three kinds of fertilizer is respectively fertilizer 20% in early stage, mid-term fertilizer 30%, later stage fertilizer 50%.
3. a preparation method for the universal bulk blending slow release fertilizer of the anil described in the claims 1 or 2, is characterized in that the method comprises the following steps:
1) early stage fertilizer preparation:
1-1) prepare the raw material of following weight part:
Urea 16-20 part, monoammonium phosphate 15-17 part, potassium sulfate 8-10 part, 80-100 order starch 10-15 part, environment sensitive type hydrogel 10-20 part;
1-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
1-3) starch of above-mentioned weight part is added step 1-2) in the mixing solutions made, heat, until again fully dissolve, be uniformly mixed solution and make it form colloid;
1-4) by step 1-3) colloid made pours on moulding male and female mold and cools, condense into particle, form fertilizer inorganic fertilizer nucleome in early stage (1) to it;
1-5) by step 1-4) the inorganic fertilizer nucleome (1) made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making inorganic fertilizer nucleome (1) be wrapped up rear formation fertilizer hydrogel layer in early stage (2) completely by hydrogel, oven drying at low temperature
I.e. obtained fertilizer in earlier stage;
2) mid-term fertilizer preparation:
2-1) prepare the raw material of following weight part:
Urea 10-13 part, monoammonium phosphate 11-13 part, potassium sulfate 16-21 part, 80-100 order starch 10-15 part, fowl dung fermentation fertilizer powder 30-50 part, environment sensitive type hydrogel 10-20 part;
2-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
2-3) starch of above-mentioned weight part is added step 2-2) in the mixing solutions made, heat, until again fully dissolve, be uniformly mixed solution and make it form colloid;
2-4) by step 2-3) colloid made pours on moulding male and female mold and cools, condense into particle, form fertilizer inorganic fertilizer nucleome in mid-term (3) to it;
2-5) by step 2-4) fertilizer inorganic fertilizer nucleome in mid-term (3) of making add in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in surface formation in fertilizer inorganic fertilizer nucleome in mid-term (3) fertilizer chicken manure organic fertilizer layer in mid-term (4) completely;
2-6) by step 2-5) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation fertilizer in mid-term hydrogel layer (5) completely by hydrogel, oven drying at low temperature,
Namely fertilizer in mid-term is obtained;
3) preparation of later stage fertilizer:
3-1) prepare the raw material of following weight part:
Urea 10-13 part, monoammonium phosphate 15-18 part, potassium sulfate 11-15 part, 80-100 order starch 10-15 part, fowl dung fermentation fertilizer powder 40-60 part, diatomite powder 20-25 part, environment sensitive type hydrogel 10-20 part;
3-2) urea of above-mentioned weight part, monoammonium phosphate and potassium sulfate are mixed, the water adding 50-60 weight part makes mixture fully dissolve formation mixing solutions;
3-3) starch of above-mentioned weight part is added step 3-2) in the mixing solutions made, heat, until again fully dissolve, be uniformly mixed solution and make it form colloid;
3-4) by step 3-3) colloid made pours on moulding male and female mold and cools, condense into particle, form later stage fertilizer inorganic fertilizer nucleome (6) to it;
3-5) by step 3-4) later stage fertilizer inorganic fertilizer nucleome (6) of making adds in fowl dung fermentation fertilizer powder, put into granulating disc and carry out rolling granulation, until fowl dung fermentation fertilizer is wrapped in later stage fertilizer inorganic fertilizer nucleome (6) outside surface completely form later stage fertilizer chicken manure organic fertilizer layer (7);
3-6) by step 3-5) obtained fertiliser granulates adds in the diatomite powder of above-mentioned weight part, put into granulating disc to carry out second time and to roll granulation, diatomite is wrapped in completely later stage fertilizer chicken manure organic fertilizer layer (7) outside surface and forms later stage fertilizer diatomite layer (8);
3-7) by step 3-6) fertiliser granulates made adds in the environment sensitive type hydrogel of above-mentioned weight part and carries out granulation, after making fertiliser granulates be wrapped up rear formation later stage fertilizer hydrogel layer (9) completely by hydrogel, oven drying at low temperature,
I.e. obtained later stage fertilizer;
4) by above-mentioned three kinds of obtained fertilizer by weight percentage
Early stage fertilizer 15-25%, mid-term fertilizer 25-35%, the ratio mixed preparing of later stage fertilizer 40-55%, the i.e. obtained universal bulk blending slow release fertilizer of above-mentioned anil.
4. the preparation method of the universal bulk blending slow release fertilizer of a kind of anil according to claim 3, is characterized in that: step 1-5) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
5. the preparation method of the universal bulk blending slow release fertilizer of a kind of anil according to claim 3, is characterized in that: step 2-6) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
6. the preparation method of the universal bulk blending slow release fertilizer of a kind of anil according to claim 3, is characterized in that: step 3-7) in, the temperature of oven drying at low temperature is 60-80 degree Celsius.
7. the preparation method of the universal bulk blending slow release fertilizer of a kind of anil according to claim 3, it is characterized in that step 1-4), 2-4) and 3-4) in, the moulding male and female mold of employing is: the hemispherical-shaped aperture (11) the plate face of plate body (10) evenly offering multiple indent.
8. the preparation method of the universal bulk blending slow release fertilizer of a kind of anil according to claim 3, is characterized in that environment sensitive type hydrogel is:
Take polymerization single polymerization monomer as raw material, N, N'-methylene-bisacrylamide is linking agent, and 2-oxoglutaric acid is light trigger, and polyvinyl alcohol or chitosan solution are polymeric additive, adopts environment sensitive type hydrogel prepared by light initiation polymerization method;
Wherein, polymerization single polymerization monomer is any one in diacetone-acryloamide(DAA), acrylamide or vinylformic acid or multiple mixture.
9. the preparation method of the universal bulk blending slow release fertilizer of a kind of anil according to claim 8, is characterized in that the preparation method of above-mentioned environment sensitive type hydrogel is:
A, preparation pre-gathering solutions
With following raw material for solute:
Polymerization single polymerization monomer 75-99.7 weight part, 2-oxoglutaric acid 0.1-1 weight part, N, N'-methylene-bisacrylamide 0.1-25 weight part, polymeric additive 0.1-10 weight part;
Take deionized water as solvent, the mass ratio of solute and solvent is 1:50;
Be mixed with pre-gathering solutions;
Under b, the pre-gathering solutions made by step a are placed in ultraviolet radiation, expose direct polymerization after 5-30 minute and become cross-linked polymer;
C, the cross-linked polymer made by step b put into the apparatus,Soxhlet's deionized water extracting 20-28 hour boiled, and put into vacuum drying oven dry after taking-up, i.e. obtained described environment sensitive type hydrogel.
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| CN111943781A (en) * | 2020-09-23 | 2020-11-17 | 广西黎塘远东化肥有限责任公司 | Production method of fertilizer special for eucalyptus |
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