CN106336314A - Preparation method of biological compound slow-release fertilizer - Google Patents
Preparation method of biological compound slow-release fertilizer Download PDFInfo
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- CN106336314A CN106336314A CN201610774993.7A CN201610774993A CN106336314A CN 106336314 A CN106336314 A CN 106336314A CN 201610774993 A CN201610774993 A CN 201610774993A CN 106336314 A CN106336314 A CN 106336314A
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
-
- 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
-
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a preparation method of a biological compound slow-release fertilizer. The preparation method comprises the following steps: a) mixing bone glue, soybean phospholipids, soybean oil, soybean meal and iso-octyl palmitate, and then carrying out ultrasonic dispersion; b) uniformly coating a mixed solution on the surface of a fertilizer master batch A by using a way of vacuum spraying, then drying and cooling to room temperature to obtain fertilizer granules; c) taking a fertilizer master batch B and gelatinized starch to be mixed with the fertilizer granules, thus preparing compound fertilizer granules; d) taking starch sodium octenyl succinate and a potassium carbonate solution, mixing and stirring into paste, then adding to the compound fertilizer granules, stirring, drying and cooling to the room temperature to obtain the biological compound slow-release fertilizer. The preparation method disclosed by the invention is suitable for preparing the water-soluble slow-release fertilizer, and the material of a coating layer is a degradable material, so as to have no pollution to soil, furthermore, the preparation method is simple in process, convenient to operate and short in technical process cycle, and does not produce waste, so as to be in line with the concept of greenness and environmental protection of the atomic economy, and conducive to industrialized popularization and application.
Description
Technical field
The present invention relates to technical field of fertilizer manufacture, especially relate to a kind of preparation method of biology composite slow release chemical fertilizer.
Background technology
Chemical fertilizer occupies very important status in agricultural production.China is as a large agricultural country, right in agricultural production
The demand of chemical fertilizer is very high, and chemical fertilizer has become as maximum material investment in agricultural production according to statistics, accounts for full scale production and props up
50% about going out.The fertilizer production of China and usage amount are the first in the world, and wherein yield accounts for the 20% of world Fertilizer yield,
Usage amount has accounted for the 28% of world Fertilizer consumption；However, the property due to chemical fertilizer and the requirement to soil environment, then lead to
Soil physical properties constantly deteriorates, and so not only affects the raising of crops, and environment be also result in huge pollution；Cause
This, improve chemical fertilizer utilization ratio, reduces fertilising excessive, it is to avoid it is in the urgent need to address that environmental pollution has become as Developing Sustainable Agriculture
Problem.Slow release fertilizer just arises at the historic moment also known as release and release control fertilizer (control release fertilizers).
Slow release chemical fertilizer has a following advantage: 1) reduces nutrient loss, improves chemical fertilizer utilization ratio, 2) and make to cause plant in soil not
Can be reduced using the chemistry and biological fixation effect of form, 3) the nitrogen unit that decreases denitrification and nitrogen Nitrification and cause
Element loss；However, existing slow release chemical fertilizer there are the following problems: 1) integument film forming matter mostly is synthesising macromolecule copolymer, is difficult
Biodegradation；2) directly chemical adhesive parcel, slow release cycle is short or slow release are added using pure starch or various plant straw powder
Speed is difficult to control to；3) expensive such as silane, titanate esters or Aluminate etc. the coupling agent of coating matter used by, high cost is unfavorable for
Large-scale promotion application.
Content of the invention
For solving the above problems, the invention provides a kind of reliable and stable, low cost, total nutrient height, soil can be improved
Nitrogen fixing capacity, and material therefor is biodegradable, does not change the preparation method of the degradable controlled release fertilizer of soil environment.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of preparation method of biology composite slow release chemical fertilizer, comprises the following steps:
A) in parts by weight, by 150 parts of osseocolla, 100～120 parts of soybean phospholipids, 140～160 parts of soybean oils, 20～22 parts of bean cake
After powder and 60～70 parts of iso-octyl palmitate mixing, ultrasonic disperse 50～60 minutes, obtain mixed liquor；
B) take fertilizer master batch a, the mixed liquor of fertilizer master batch a weight 26～28% is coated uniformly on by the way of airless spraying
The surface of fertilizer master batch a, is cooled to room temperature after being dried 40～50 minutes afterwards, prepared chemical fertilizer granule at 60～70 DEG C；
C) the fertilizer master batch b of chemical fertilizer granule weight 66～68% and the gelatinized starch of chemical fertilizer granule weight 20～22% and chemical fertilizer material are taken
Granule mixes, stirring mixing 30～40 minutes, prepared composite chemical fertilizer granule at 50～60 DEG C；
D) starch sodium octenyl succinate of composite chemical fertilizer particle weight 20～30% and composite chemical fertilizer particle weight 2～10% are taken
Concentration is the solution of potassium carbonate of 0.1～0.12mol/l, is first mixed into solution of potassium carbonate and starch sodium octenyl succinate
Pasty state, is subsequently adding composite chemical fertilizer granule, stirs 80～120 minutes at 30～40 DEG C, after being dried and be cooled to room temperature afterwards,
Biology composite slow release chemical fertilizer is obtained.
The slow-release fertilizer of this preparation method preparation is the slow-release fertilizer with 4 Rotating fields, wherein has two slow release layers and two
Chemical fertilizer layer, can make the onset time of this chemical fertilizer more long；Ecto-entad be successively by starch sodium octenyl succinate be mainly former
The outermost slow release layer of material, starch sodium octenyl succinate is a kind of good covering material, can form bag with multiple compounds
Knot complex so as to stable, solubilized, slow release, emulsifying, antioxidation, antidecomposition, insulation, protection against the tide so that chemical fertilizer stores up at ordinary times
Deposit process and will not lose efficacy because of the reason such as water or in the air dioxygen oxidation after application it is ensured that slow-release fertilizer is when longer
Interior preservation；Although, starch sodium octenyl succinate will not be decomposed under water or air or illumination condition, in cladding
After the slow-release fertilizer having starch sodium octenyl succinate is applied, in soil, intrinsic microbes gradually decompose the pungent of slow-release fertilizer surface
Starch alkenyl succinate sodium, so that chemical fertilizer therein comes out, so that chemical fertilizer comes into force, increases the fertility of soil；Octene
It is the fertilizer layer being made up of fertilizer master batch b inside base succinic acid starch sodium, fertilizer master batch b is only with the difference of fertilizer master batch a
Its particle diameter is different, and the particle diameter of fertilizer master batch b is about the 1/10 about of fertilizer master batch a particle diameter, and this is in order to fertilizer master batch b can be more
Readily it is coated on the outside of fertilizer master batch a, but outermost slow release layer starch sodium octenyl succinate is by the micro- life in soil
After thing decomposes, fertilizer master batch b comes out, and fish protein contained therein is fertile, fixed nitrogen bacteria preparation and phosphatic manure start onset, for soil
Earth provides fertility, is mainly the nitrogen fixing bacteria of azotobacter in fixed nitrogen bacteria preparation, and it can utilize the nitrogen of in the air to generate
The nitrogen compound that can be absorbed by plant；Simultaneously, have by osseocolla, soybean phospholipid and soybean oil due to inside fertilizer master batch b
For raw material be obtained second layer slow release layer, now inner side fertilizer master batch a protected by the second slow release layer, do not discharge fertility；
After fertilizer master batch b releases fertility and is decomposed, the second slow release layer starts to decompose, and then, when the second slow release layer is divided completely
Xie Hou, fertilizer master batch a starts onset, until finally whole slow-release fertilizer releases fertility.This process can be held under normal circumstances
Continue several thoughtful some months.Osseocolla, soybean phospholipid, soybean oil and bean cake powder be obtained mixed liquor as the second slow release layer raw material,
This mixture can ensure that the fertilizer master batch a of inner side keeps stable in a longer time, and iso-octyl palmitate is then
As emulsifying agent so as to remaining the more uniform of four kinds of raw materials mixing, and make emulsifying mixture it is easier to be coated on fertilizer master batch a
Outside；Airless spraying technology simultaneously, can promote adhesive ability outside fertilizer master batch a for the mixed liquor；In step c, adopt
Fertilizer master batch b is bonded in the outside of the fertilizer master batch a after modern cladding by gelatinized starch as binding agent.
Preferably, in step a, during ultrasonic disperse, supersonic frequency is 80～90mhz, temperature is 120～130 DEG C.
Preferably, fertilizer master batch a pass through following steps be obtained: in parts by weight, take 200 parts of conch meals, 40～50 parts
Starch, 16～20 parts of fish protein fertilizer, 20～40 parts of fixed nitrogen bacteria preparations, 46～50 parts of phosphorus source, 20～22 parts of dicyandiamides, 20～30 parts
Starch is first mixed by carboxymethyl cellulose, 60～100 parts of water and 16～20 parts of sodium lignin sulfonates with water, sodium lignin sulfonate
Stir into pasty state, being subsequently added into carboxymethyl cellulose and dicyandiamide in rotating speed is to stir 4～6 minutes under 10～20rpm, Ran Houjia
Entering fish protein fertilizer, fixed nitrogen bacteria preparation and phosphorus source in rotating speed is that 20～40rpm stirs 4～6 minutes, adds conch meal afterwards in rotating speed
Stir 8～10 minutes for 30～50rpm, last drying and crushing to 60～80 mesh, prepared fertilizer master batch a.
Mainly with the addition of in order to the conch meal with reference to various raw materials in fertilizer master batch a, this kind of conch meal is by shell via alkali
Process and be obtained after processing with high-temperature calcination, it has stronger absorption property, can be enriched in the various raw materials of fertilizer master batch a
In less volume；It is difficult absorbed nitro nitrogenous fertilizer because the aminoacid in fish protein fertilizer easily becomes under Nitrification,
In order to prevent the generation of this kind of reaction, add appropriate nitrification inhibitor dicyandiamide in the feed；Starch can be used as one kind can
The fertilizer of degraded as npk fertilizer a load so as to can be adhered to by shell powder, but can also be unlikely to
It is adsorbed in the duct within shell powder；Sodium lignin sulfonate makes various feed distribution more uniform as dispersant,
Simultaneously work as the effect of each emulsifying raw material；Carboxymethyl cellulose then plays the effect of thickening, makes soluble nitrogenous P-K fertilizer
It is unlikely to quickly to run off.
Preferably, the raw material of fertilizer master batch b is identical with fertilizer master batch a, the preparation method of fertilizer master batch b removes last pulverizing
Outer identical with the preparation method of fertilizer master batch a to 140～160 mesh.
Fertilizer master batch b is only that its particle diameter is different from the difference of fertilizer master batch a, and the particle diameter of fertilizer master batch b is about fertilizer mother
The 1/10 about of grain a particle diameter, this is in order to fertilizer master batch b easier can be coated on the outside of fertilizer master batch a.
Preferably, conch meal is obtained by following steps: shell collection cleaning-drying is crushed to 10～20 mesh, then will
Shell after pulverizing soaks 40～60 minutes in the potassium hydroxide solution of 0.5～1mol/l, and taking-up afterwards is cleaned with water, then
At 600～800 DEG C, calcining was cooled to room temperature after 1～2 hour, was then crushed to 200～240 mesh, prepared conch meal.
Shell is first crushed to the so larger granule of 10～20 mesh, soaks in alkaline solution, removes the albumen on epicarpium Castaneae
Matter etc. organize, afterwards in high temperature calcining and activating shell absorption property, make epicarpium Castaneae make powder and be added to fertilizer master batch raw material
The more fertilizer of nitrogenous phosphorus potassium element and various effective additive can be adsorbed when middle.
Preferably, phosphorus source is calcium superphosphate.
Preferably, starch is one of potato starch, corn starch or sweet potato starch.
Therefore, the method have the advantages that
(1), compared with manufacturing slow-release fertilizer casing with existing use amylan with powder timber residue, the present invention can make up because of powder
Shape wood residue granule and space is excessive chemical fertilizer is wrapped up uneven, slow-release time is short and uppity deficiency；
(2) this method is applicable to the preparation of various water-soluble slow-releasing chemical fertilizer, and the material of clad used be can be completely raw
Thing degradable material, pollution-free to soil, do not change soil environment；
(3) used by, coating is all biodegradable, with existing using various synthesis macromolecular adhesive do parcel glued membrane compared with, can
Make up the deficiency that synthesis macromolecule is not biodegradable, to soil and environmental pollution；
(4) process is simple of the present invention, easy to operate, and technological cycle is short, and energy consumption is low, and does not produce garbage, meets former
The theory of subeconomy environmental protection, beneficial to industrial application.
Specific embodiment
With reference to specific embodiment, technical scheme is further described.
Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, all other reality that those of ordinary skill in the art are obtained under the premise of not making creative work
Apply example, broadly fall into the scope of protection of the invention.
Embodiment 1
A kind of preparation method of biology composite slow release chemical fertilizer, comprises the following steps:
A) in parts by weight, by 150 parts of osseocolla, 100 parts of soybean phospholipids, 140 portions of soybean oils, 20 parts of bean cake powders and 60 parts of Palmic acids
After different monooctyl ester mixing, ultrasonic disperse 50 minutes, obtain mixed liquor；During ultrasonic disperse, supersonic frequency is 80mhz, and temperature is 120 DEG C；
B) take fertilizer master batch a, the mixed liquor of fertilizer master batch a weight 26% is coated uniformly on fertilizer by the way of airless spraying
The surface of master batch a, is cooled to room temperature after being dried 40 minutes afterwards, prepared chemical fertilizer granule at 60 DEG C；
C) the fertilizer master batch b of chemical fertilizer granule weight 66% and the gelatinized starch of chemical fertilizer granule weight 20% is taken to mix with changing fertiliser granulates
Close, stirring mixing 30 minutes, prepared composite chemical fertilizer granule at 50 DEG C；
D) starch sodium octenyl succinate of composite chemical fertilizer particle weight 20% and the concentration of composite chemical fertilizer particle weight 2% is taken to be
Solution of potassium carbonate and starch sodium octenyl succinate are first mixed into pasty state, Ran Houjia by the solution of potassium carbonate of 0.1mol/l
Enter composite chemical fertilizer granule, stir at 30 DEG C 80 minutes, after being dried and be cooled to room temperature afterwards, biology composite slow release is obtained
Fertile；
Wherein, fertilizer master batch a passes through following steps and is obtained: in parts by weight, take 200 parts of conch meals, 40 parts of potato starch, 16
Part fish protein is fertile, 20 parts of fixed nitrogen bacteria preparations, 46 parts of calcium superphosphate, 20 parts of dicyandiamides, 20 parts of carboxymethyl celluloses, 60 parts of water and 16
Potato starch and water, sodium lignin sulfonate are first mixed into pasty state, are subsequently added into carboxymethyl cellulose by part sodium lignin sulfonate
Element and dicyandiamide stir 4 minutes under rotating speed is for 10rpm, are subsequently adding fish protein fertilizer, fixed nitrogen bacteria preparation and calcium superphosphate and are turning
Speed stirs 4 minutes for 20rpm, adds conch meal to stir 8 minutes for 30rpm in rotating speed afterwards, last drying and crushing to 60 mesh, system
Obtain fertilizer master batch a；The raw material of fertilizer master batch b is identical with fertilizer master batch a, and the preparation method of fertilizer master batch b is removed and is finally crushed to 140
Mesh is outer identical with the preparation method of fertilizer master batch a；
Conch meal is obtained by following steps: shell collection cleaning-drying is crushed to 10 mesh, then the shell after pulverizing exists
Soak 40 minutes in the potassium hydroxide solution of 0.5mol/l, taking-up afterwards is cleaned with water, after then calcining 1 hour at 600 DEG C
It is cooled to room temperature, be then crushed to 200 mesh, prepared conch meal.
Embodiment 2
A kind of preparation method of biology composite slow release chemical fertilizer, comprises the following steps:
A) in parts by weight, by 150 parts of osseocolla, 110 parts of soybean phospholipids, 150 portions of soybean oils, 21 parts of bean cake powders and 65 parts of Palmic acids
After different monooctyl ester mixing, ultrasonic disperse 55 minutes, obtain mixed liquor；During ultrasonic disperse, supersonic frequency is 85mhz, and temperature is 125 DEG C；
B) take fertilizer master batch a, the mixed liquor of fertilizer master batch a weight 27% is coated uniformly on fertilizer by the way of airless spraying
The surface of master batch a, is cooled to room temperature after being dried 45 minutes afterwards, prepared chemical fertilizer granule at 65 DEG C；
C) the fertilizer master batch b of chemical fertilizer granule weight 67% and the gelatinized starch of chemical fertilizer granule weight 21% is taken to mix with changing fertiliser granulates
Close, stirring mixing 35 minutes, prepared composite chemical fertilizer granule at 55 DEG C；
D) starch sodium octenyl succinate of composite chemical fertilizer particle weight 25% and the concentration of composite chemical fertilizer particle weight 26% is taken to be
Solution of potassium carbonate and starch sodium octenyl succinate are first mixed into pasty state, Ran Houjia by the solution of potassium carbonate of 0.11mol/l
Enter composite chemical fertilizer granule, stir at 35 DEG C 100 minutes, after being dried and be cooled to room temperature afterwards, biology composite slow release is obtained
Fertile；
Wherein, fertilizer master batch a passes through following steps and is obtained: in parts by weight, take 200 parts of conch meals, 45 parts of corn starchs, 18
Part fish protein is fertile, 30 parts of fixed nitrogen bacteria preparations, 48 parts of calcium superphosphate, 21 parts of dicyandiamides, 25 parts of carboxymethyl celluloses, 80 parts of water and 18
Corn starch and water, sodium lignin sulfonate are first mixed into pasty state, are subsequently added into carboxymethyl cellulose by part sodium lignin sulfonate
Element and dicyandiamide stir 5 minutes under rotating speed is for 15rpm, are subsequently adding fish protein fertilizer, fixed nitrogen bacteria preparation and calcium superphosphate and are turning
Speed stirs 5 minutes for 30rpm, adds conch meal to stir 9 minutes for 40rpm in rotating speed afterwards, last drying and crushing to 70 mesh, system
Obtain fertilizer master batch a；The raw material of fertilizer master batch b is identical with fertilizer master batch a, and the preparation method of fertilizer master batch b is removed and is finally crushed to 150
Mesh is outer identical with the preparation method of fertilizer master batch a；
Conch meal is obtained by following steps: shell collection cleaning-drying is crushed to 15 mesh, then the shell after pulverizing exists
Soak 50 minutes in the potassium hydroxide solution of 0.7mol/l, taking-up afterwards is cleaned with water, then calcine 1.5 hours at 700 DEG C
After be cooled to room temperature, be then crushed to 220 mesh, prepared conch meal.
Embodiment 3
A kind of preparation method of biology composite slow release chemical fertilizer, comprises the following steps:
A) in parts by weight, by 150 parts of osseocolla, 120 parts of soybean phospholipids, 160 portions of soybean oils, 22 parts of bean cake powders and 70 parts of Palmic acids
After different monooctyl ester mixing, ultrasonic disperse 60 minutes, obtain mixed liquor；During ultrasonic disperse, supersonic frequency is 90mhz, and temperature is 130 DEG C；
B) take fertilizer master batch a, the mixed liquor of fertilizer master batch a weight 28% is coated uniformly on fertilizer by the way of airless spraying
The surface of master batch a, is cooled to room temperature after being dried 50 minutes afterwards, prepared chemical fertilizer granule at 70 DEG C；
C) the fertilizer master batch b of chemical fertilizer granule weight 68% and the gelatinized starch of chemical fertilizer granule weight 22% is taken to mix with changing fertiliser granulates
Close, stirring mixing 40 minutes, prepared composite chemical fertilizer granule at 60 DEG C；
D) starch sodium octenyl succinate of composite chemical fertilizer particle weight 30% and the concentration of composite chemical fertilizer particle weight 10% is taken to be
Solution of potassium carbonate and starch sodium octenyl succinate are first mixed into pasty state, Ran Houjia by the solution of potassium carbonate of 0.12mol/l
Enter composite chemical fertilizer granule, stir at 40 DEG C 120 minutes, after being dried and be cooled to room temperature afterwards, biology composite slow release is obtained
Fertile；
Wherein, fertilizer master batch a passes through following steps and is obtained: in parts by weight, take 200 parts of conch meals, 50 parts of sweet potato starch, 20
Part fish protein is fertile, 40 parts of fixed nitrogen bacteria preparations, 50 parts of calcium superphosphate, 2 parts of dicyandiamides, 30 parts of carboxymethyl celluloses, 100 parts of water and
Sweet potato starch and water, sodium lignin sulfonate are first mixed into pasty state by 20 parts of sodium lignin sulfonates, are subsequently added into carboxymethyl fine
Dimension element and dicyandiamide stir 6 minutes under rotating speed is for 20rpm, are subsequently adding fish protein fertilizer, fixed nitrogen bacteria preparation and calcium superphosphate and exist
Rotating speed stirs 6 minutes for 40rpm, adds conch meal to stir 10 minutes for 50rpm in rotating speed afterwards, last drying and crushing to 80
Mesh, prepared fertilizer master batch a；The raw material of fertilizer master batch b is identical with fertilizer master batch a, and the preparation method of fertilizer master batch b removes last pulverizing
Outer identical with the preparation method of fertilizer master batch a to 160 mesh；
Conch meal is obtained by following steps: shell collection cleaning-drying is crushed to 20 mesh, then the shell after pulverizing exists
Soak 60 minutes in the potassium hydroxide solution of 1mol/l, taking-up afterwards is cleaned with water, cold after then calcining 2 hours at 800 DEG C
But to room temperature, then it is crushed to 240 mesh, prepared conch meal.
It should be appreciated that to those skilled in the art, can be improved according to the above description or be become
Change, and all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (7)
1. a kind of preparation method of biology composite slow release chemical fertilizer is it is characterised in that comprise the following steps:
A) in parts by weight, by 150 parts of osseocolla, 100～120 parts of soybean phospholipids, 140～160 parts of soybean oils, 20～22 parts of bean cake
After powder and 60～70 parts of iso-octyl palmitate mixing, ultrasonic disperse 50～60 minutes, obtain mixed liquor；
B) take fertilizer master batch a, the mixed liquor of fertilizer master batch a weight 26～28% is coated uniformly on by the way of airless spraying
The surface of fertilizer master batch a, is cooled to room temperature after being dried 40～50 minutes afterwards, prepared chemical fertilizer granule at 60～70 DEG C；
C) the fertilizer master batch b of chemical fertilizer granule weight 66～68% and the gelatinized starch of chemical fertilizer granule weight 20～22% and chemical fertilizer material are taken
Granule mixes, stirring mixing 30～40 minutes, prepared composite chemical fertilizer granule at 50～60 DEG C；
D) starch sodium octenyl succinate of composite chemical fertilizer particle weight 20～30% and composite chemical fertilizer particle weight 2～10% are taken
Concentration is the solution of potassium carbonate of 0.1～0.12mol/l, is first mixed into solution of potassium carbonate and starch sodium octenyl succinate
Pasty state, is subsequently adding composite chemical fertilizer granule, stirs 80～120 minutes at 30～40 DEG C, after being dried and be cooled to room temperature afterwards,
Biology composite slow release chemical fertilizer is obtained.
2. according to claim 1 a kind of biology composite slow release chemical fertilizer preparation method it is characterised in that: described step a
In, during ultrasonic disperse, supersonic frequency is 80～90mhz, and temperature is 120～130 DEG C.
3. a kind of preparation method of biology composite slow release chemical fertilizer according to claim 1 is it is characterised in that described fertilizer is female
Grain a passes through following steps and is obtained: in parts by weight, take 200 parts of conch meals, 40～50 parts of starch, 16～20 parts of fish protein fertilizer,
20～40 parts of fixed nitrogen bacteria preparations, 46～50 parts of phosphorus source, 20～22 parts of dicyandiamides, 20～30 parts of carboxymethyl celluloses, 60～100 parts
Starch and water, sodium lignin sulfonate are first mixed into pasty state, are subsequently added into carboxylic first by water and 16～20 parts of sodium lignin sulfonates
Base cellulose and dicyandiamide are to stir 4～6 minutes under 10～20rpm in rotating speed, be subsequently adding that fish protein is fertile, fixed nitrogen bacteria preparation and
Phosphorus source is that 20～40rpm stirs 4～6 minutes in rotating speed, adds conch meal to be that 30～50rpm stirs 8～10 points in rotating speed afterwards
Clock, last drying and crushing to 60～80 mesh, prepared fertilizer master batch a.
4. according to claim 1 or 3 a kind of biology composite slow release chemical fertilizer preparation method it is characterised in that: described fertilizer
The raw material of material master batch b is identical with fertilizer master batch a, and the preparation method of fertilizer master batch b is in addition to being finally crushed to 140～160 mesh and fertile
The preparation method of material master batch a is identical.
5. a kind of preparation method of biology composite slow release chemical fertilizer according to claim 3 is it is characterised in that described shell
Powder is obtained by following steps: shell collection cleaning-drying is crushed to 10～20 mesh, then by the shell after pulverizing 0.5～
Soak 40～60 minutes in the potassium hydroxide solution of 1mol/l, taking-up afterwards is cleaned with water, at 600～800 DEG C, then calcine 1
It is cooled to room temperature after～2 hours, be then crushed to 200～240 mesh, prepared conch meal.
6. according to claim 3 a kind of biology composite slow release chemical fertilizer preparation method it is characterised in that: phosphorus source is
Calcium superphosphate.
7. according to claim 3 a kind of biology composite slow release chemical fertilizer preparation method it is characterised in that: described starch
For one of potato starch, corn starch or sweet potato starch.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188677A (en) * | 2017-06-05 | 2017-09-22 | 合肥永泰新型建材有限公司 | A kind of composite environment-friendly type chemical fertilizer and preparation method thereof |
| CN108863584A (en) * | 2018-08-13 | 2018-11-23 | 湖南泰谷生态工程有限公司 | One kind poultry of dying of illness prepares bio-feritlizer and preparation method thereof |
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| CN104447029A (en) * | 2014-12-14 | 2015-03-25 | 青岛锐志农业技术服务有限公司 | Plant environment-friendly slow-release compound fertilizer |
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- 2016-08-31 CN CN201610774993.7A patent/CN106336314A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104447029A (en) * | 2014-12-14 | 2015-03-25 | 青岛锐志农业技术服务有限公司 | Plant environment-friendly slow-release compound fertilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188677A (en) * | 2017-06-05 | 2017-09-22 | 合肥永泰新型建材有限公司 | A kind of composite environment-friendly type chemical fertilizer and preparation method thereof |
| CN108863584A (en) * | 2018-08-13 | 2018-11-23 | 湖南泰谷生态工程有限公司 | One kind poultry of dying of illness prepares bio-feritlizer and preparation method thereof |
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Application publication date: 20170118 |