CN108794143A - A kind of soil conditioner and preparation method thereof - Google Patents
A kind of soil conditioner and preparation method thereof Download PDFInfo
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- CN108794143A CN108794143A CN201810371070.6A CN201810371070A CN108794143A CN 108794143 A CN108794143 A CN 108794143A CN 201810371070 A CN201810371070 A CN 201810371070A CN 108794143 A CN108794143 A CN 108794143A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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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
-
- 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
Abstract
The invention belongs to technical field of land improvement, a kind of soil conditioner and preparation method thereof is specifically disclosed.The soil conditioner of the present invention by weight, mainly receives 3-6 parts of graft copolymer by 25-40 part of ammonium phosphate, 12-25 part of potassium chloride, 4-7 part of magnesium chloride, 10-20 parts of humic acid potassium, 2-4 parts of potassium para-nitrophenate, 5-9 parts of calcium nitrate, 3-7 parts of wilfordine, 6-10 parts of zinc chloride, 8-15 parts of bentonite, 4-7 parts of itaconic acid, 3-6 parts of polyvinyl alcohol, 2-4 parts of polyethylene glycol oxide and Starch with Acrylic Acid and passes through mixing granulation, mixed dissolution to film and spray to dry and be made.The present invention soil conditioner is easy to maintain, long shelf-life, and improvement duration is long after applying, and improved effect is good, can be effectively improved soil property, improves soil fertilizer water holding capacity and effectively improve the yield of crop.
Description
【Technical field】
The present invention relates to technical field of land improvement, and in particular to a kind of soil conditioner and preparation method thereof.
【Background technology】
Soil fertility is to reflect an important indicator of fertile soil, it is to weigh soil to be capable of providing plant growth institute
The ability of the various nutrients needed.Influence many because being known as of soil fertility, such as the matter of the thickness of plough horizon, topsoil soils
The nutrient contents such as ground and structure, soil organic matter content, Soil Nitrogen, phosphorus, potassium, soil acidity or alkalinity etc..But in current agricultural
In plantation, long-term excess applies chemical fertilizer, chemical pesticide etc. and soil property is changed, and soil fertility reduces even salt
Alkalization, so that the various nutrients needed for it can not be provided for the growth of crop.Therefore, there is an urgent need for a kind of soil conditioners of development to change
Become present situation.
Although being reported at present about the research of soil conditioner more, there is a problem of different degrees of, such as be not easy
It preserves, improve duration is poor, effective time is short etc. after vulnerable and application.And one disclosed in Chinese patent CN103694028A
Kind of soil conditioner, the soil conditioner is by following mass percent at being grouped as：Ammonium sulfate 15%, ammonium chloride 10%, phosphorus
Sour monoammonium 5%, potassium chloride 10%, magnesium sulfate 5%, sodium humate 45%, compound sodium nitrophenolate 0.1%, calcium powder 5%, alkaloid 1%,
Calcium superphosphate 5%, although the soil conditioner of the invention, it is reasonable to prepare, and dissolubility is good, can effectively enhance soil texture,
Improve soil property, increase soil fertility, make soil that kilter be presented, is conducive to plant growth, however there is institutes after application
The relatively low problem of the yield of the crops of acquisition.
【Invention content】
The goal of the invention of the present invention is：In view of the above problems, a kind of soil conditioner and its preparation side are provided
Method.The present invention soil conditioner is easy to maintain, long shelf-life, and improvement duration is long after applying, and improved effect is good, can effectively change
Kind soil property improves soil fertilizer water holding capacity and effectively improves the yield of crop.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of soil conditioner includes the raw material components of following parts by weight：25-40 parts of ammonium phosphate, 12-25 parts of potassium chloride,
4-7 parts of magnesium chloride, 10-20 parts of humic acid potassium, 2-4 parts of potassium para-nitrophenate, 5-9 parts of calcium nitrate, 3-7 parts of wilfordine, zinc chloride 6-
10 parts, 8-15 parts of bentonite, 4-7 parts of itaconic acid, 3-6 parts of polyvinyl alcohol, 2-4 parts of polyethylene glycol oxide and Starch with Acrylic Acid are received and are connect
3-6 parts of graft copolymer.
Further, a kind of soil conditioner, includes the raw material components of following parts by weight：30 parts of ammonium phosphate, chlorination
It is 18 parts of potassium, 5 parts of magnesium chloride, 14 parts of humic acid potassium, 3 parts of potassium para-nitrophenate, 6 parts of calcium nitrate, 6 parts of wilfordine, 8 parts of zinc chloride, swollen
11 parts of profit soil, 6 parts of itaconic acid, 5 parts of polyvinyl alcohol, 3 parts of polyethylene glycol oxide, Starch with Acrylic Acid receive 5 parts of graft copolymer.
Further, a kind of soil conditioner, includes the raw material components of following parts by weight：38 parts of ammonium phosphate, chlorination
It is 22 parts of potassium, 6 parts of magnesium chloride, 17 parts of humic acid potassium, 3 parts of potassium para-nitrophenate, 8 parts of calcium nitrate, 5 parts of wilfordine, 7 parts of zinc chloride, swollen
14 parts of profit soil, 5 parts of itaconic acid, 4 parts of polyvinyl alcohol, 3 parts of polyethylene glycol oxide, Starch with Acrylic Acid receive 4 parts of graft copolymer.
Further, the preparation method of a kind of soil conditioner, includes the following steps：
(1) by weight, each raw material components are weighed, it is spare；
(2) by the ammonium phosphate weighed, potassium chloride, magnesium chloride, humic acid potassium, potassium para-nitrophenate, calcium nitrate, wilfordine and
After 1.5-2.5h is mixed in zinc chloride, pelletizes and drying to water content is 4-5%, obtain compound fertilizer granules；
(3) itaconic acid weighed and polyvinyl alcohol are added in reaction kettle under room temperature by the speed of 300-400r/min
After stirring 20-30min, it is warming up to 80-85 DEG C, continues to stir to polyvinyl alcohol by the speed of 300-400r/min and is completely dissolved
Afterwards, the bentonite, polyethylene glycol oxide and the Starch with Acrylic Acid that have weighed are added while stirring and receives graft copolymer, continues to be warming up to
85-90 DEG C, 1-1.5h is stirred by the speed of 600-800r/min, stops heating at this time, continues stirring to feed liquid and is cooled to room temperature,
Obtain coating feed liquid；
(4) compound fertilizer granules that step (2) obtains are put into the rotary drum of rotation, using high-pressure spray-painted rifle by step (3)
In after coating feed liquid obtained is equably sprayed on the compound fertilizer granules surface, air drying to water content less than 1% to get
The soil conditioner.
Further, in step (2), the mixing speed of the stirring is 300-500r/min.
Further, in step (4), temperature of the coating feed liquid in spraying is 58-75 DEG C, improves coating feed liquid
To the coating uniformity of the compound fertilizer granules.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The soil conditioner of the present invention is mainly made of mixed fertilizer with the film liquid for being wrapped in efficient mixed fertilizer surface, the two
In conjunction with so that the soil conditioner has the characteristics that easy to maintain, long shelf-life, relative to the compound fertilizer granules not wrapped up, originally
The extended shelf-life of invention soil conditioner 1-1.5, and improvement duration is long after being applied to soil, improved effect is good, can
It is effectively improved soil property, improve soil fertilizer water holding capacity and effectively improves the yield of crop.On the one hand, ammonium phosphate, chlorine
Change potassium, magnesium chloride, calcium nitrate, zinc chloride and potassium humate and be combined into mixed fertilizer so that soil conditioner of the invention has height
Multi-functional feature is imitated, after being used in soil, nutrient content, aeration status, moisture and the temperature of soil can be effectively improved
Spend situation；Potassium para-nitrophenate is as conditioning agent, and after magnesium chloride and zinc chloride effect, nutrient is greatly facilitated in soil to plant
Permeability to improve the utilization rate of nutrient in soil, and then promotes the growth of plant；Wilfordine as insecticide,
It is highly effective for prevention cabbage caterpillar, pine moth etc., it can effectively prevent soil insect pest, also, wilfordine and potassium para-nitrophenate, corruption
Sour potassium collocation is grown, so that the killing rate of the soil conditioner of the present invention is improved 2.8-3.5%, but also make the soil of the present invention
The fungistatic effect that earth modifying agent has had, especially to the inhibiting rate of bacillus anthracis, clostridium tetani respectively up to 89.3% and
87.9% or more, to effectively reduce influence of the soil-borne disease to crop of soil, improve the yield and quality of crop；Separately
On the one hand, received based on graft copolymer with polyethylene glycol oxide and Starch with Acrylic Acid, the two coordinate so that the coating liquid have it is good
Good stickiness and ductility, so as to uniformly be coated on the compound fertilizer granules, polyvinyl alcohol and bentonite cooperation, dispersion
Property it is good so that the component homogeneity that the coating liquid has had, and the itaconic acid added is used to adjust the pH of the coating liquid, with
Upper each component cooperation so that the physical property that the coating liquid has had, tensile strength and tearing strength are respectively
54.2MPa and 57.4MPa, water absorption rate 2.2%, after it is buried 4 months in the soil, average weight-loss ratio reaches 14.32%,
Biodegradability is good, meanwhile, after being wrapped on the compound fertilizer granules, can fertilizer described in Effective Regulation release speed
The 10d preparations of rate, N, P and K of the present invention are respectively that 38.9%, 32.1% and 35.4%, 40d preparations are respectively
68.3%, 58.9% and 57.1%, to effectively improve the utilization rate of nutrient, promote the growth of crop.
【Specific implementation mode】
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1
A kind of soil conditioner, is prepared by following methods：
(1) by weight, following raw materials according component is weighed：25 parts of ammonium phosphate, 12 parts of potassium chloride, 4 parts of magnesium chloride, humic acid
10 parts of potassium, 2 parts of potassium para-nitrophenate, 5 parts of calcium nitrate, 3 parts of wilfordine, 6 parts of zinc chloride, 8 parts of bentonite, 4 parts of itaconic acid, polyethylene
3 parts of alcohol, 2 parts of polyethylene glycol oxide and Starch with Acrylic Acid receive 3 parts of graft copolymer.
(2) by the ammonium phosphate weighed, potassium chloride, magnesium chloride, humic acid potassium, potassium para-nitrophenate, calcium nitrate, wilfordine and
After 1.5h is mixed by the speed of 300r/min in zinc chloride, pelletizes and drying to water content is 4%, obtain compound fertilizer granules；
(3) itaconic acid weighed and polyvinyl alcohol are added in reaction kettle under room temperature and are stirred by the speed of 300r/min
After 20min, 80 DEG C are warming up to, after continuing to stir to polyvinyl alcohol by the speed of 300r/min and being completely dissolved, is added while stirring
Bentonite, polyethylene glycol oxide and the Starch with Acrylic Acid weighed receives graft copolymer, continues to be warming up to 85 DEG C, by 600r/min
Speed stir 1h, at this time stop heating, continue stirring be cooled to room temperature to feed liquid, obtain coating feed liquid；
(4) compound fertilizer granules that step (2) obtains are put into the rotary drum of rotation, by the coating feed liquid liter in step (3)
Temperature is to after 58 DEG C, after coating feed liquid is equably sprayed on the compound fertilizer granules surface using high-pressure spray-painted rifle, air drying
To water content less than 1% to get the soil conditioner.
Embodiment 2
A kind of soil conditioner, is prepared by following methods：
(1) by weight, following raw materials according component is weighed：30 parts of ammonium phosphate, 18 parts of potassium chloride, 5 parts of magnesium chloride, humic acid
14 parts of potassium, 3 parts of potassium para-nitrophenate, 6 parts of calcium nitrate, 6 parts of wilfordine, 8 parts of zinc chloride, 11 parts of bentonite, 6 parts of itaconic acid, poly- second
5 parts of enol, 3 parts of polyethylene glycol oxide, Starch with Acrylic Acid receive 5 parts of graft copolymer.
(2) by the ammonium phosphate weighed, potassium chloride, magnesium chloride, humic acid potassium, potassium para-nitrophenate, calcium nitrate, wilfordine and
After 1.8h is mixed by the speed of 370r/min in zinc chloride, pelletizes and drying to water content is 4%, obtain compound fertilizer granules；
(3) itaconic acid weighed and polyvinyl alcohol are added in reaction kettle under room temperature and are stirred by the speed of 350r/min
After 25min, 83 DEG C are warming up to, after continuing to stir to polyvinyl alcohol by the speed of 350r/min and being completely dissolved, is added while stirring
Bentonite, polyethylene glycol oxide and the Starch with Acrylic Acid weighed receives graft copolymer, continues to be warming up to 87 DEG C, by 650r/min
Speed stir 1.3h, at this time stop heating, continue stirring be cooled to room temperature to feed liquid, obtain coating feed liquid；
(4) compound fertilizer granules that step (2) obtains are put into the rotary drum of rotation, by the coating feed liquid liter in step (3)
Temperature is to after 65 DEG C, after coating feed liquid is equably sprayed on the compound fertilizer granules surface using high-pressure spray-painted rifle, air drying
To water content less than 1% to get the soil conditioner.
Embodiment 3
A kind of soil conditioner, is prepared by following methods：
(1) by weight, following raw materials according component is weighed：38 parts of ammonium phosphate, 22 parts of potassium chloride, 6 parts of magnesium chloride, humic acid
17 parts of potassium, 3 parts of potassium para-nitrophenate, 8 parts of calcium nitrate, 5 parts of wilfordine, 7 parts of zinc chloride, 14 parts of bentonite, 5 parts of itaconic acid, poly- second
4 parts of enol, 3 parts of polyethylene glycol oxide, Starch with Acrylic Acid receive 4 parts of graft copolymer.
(2) by the ammonium phosphate weighed, potassium chloride, magnesium chloride, humic acid potassium, potassium para-nitrophenate, calcium nitrate, wilfordine and
After 2h is mixed by the speed of 420r/min in zinc chloride, pelletizes and drying to water content is 4.5%, obtain compound fertilizer granules；
(3) itaconic acid weighed and polyvinyl alcohol are added in reaction kettle under room temperature and are stirred by the speed of 380r/min
After 27min, 83 DEG C are warming up to, after continuing to stir to polyvinyl alcohol by the speed of 380r/min and being completely dissolved, is added while stirring
Bentonite, polyethylene glycol oxide and the Starch with Acrylic Acid weighed receives graft copolymer, continues to be warming up to 87 DEG C, by 720r/min
Speed stir 1.5h, at this time stop heating, continue stirring be cooled to room temperature to feed liquid, obtain coating feed liquid；
(4) compound fertilizer granules that step (2) obtains are put into the rotary drum of rotation, by the coating feed liquid liter in step (3)
Temperature is to after 70 DEG C, after coating feed liquid is equably sprayed on the compound fertilizer granules surface using high-pressure spray-painted rifle, air drying
To water content less than 1% to get the soil conditioner.
Embodiment 4
A kind of soil conditioner, is prepared by following methods：
(1) by weight, following raw materials according component is weighed：40 parts of ammonium phosphate, 25 parts of potassium chloride, 7 parts of magnesium chloride, humic acid
20 parts of potassium, 4 parts of potassium para-nitrophenate, 9 parts of calcium nitrate, 7 parts of wilfordine, 10 parts of zinc chloride, 15 parts of bentonite, 7 parts of itaconic acid, poly- second
6 parts of enol, 4 parts of polyethylene glycol oxide and Starch with Acrylic Acid receive 6 parts of graft copolymer.
(2) by the ammonium phosphate weighed, potassium chloride, magnesium chloride, humic acid potassium, potassium para-nitrophenate, calcium nitrate, wilfordine and
After 2.5h is mixed by the speed of 500r/min in zinc chloride, pelletizes and drying to water content is 5%, obtain compound fertilizer granules；
(3) itaconic acid weighed and polyvinyl alcohol are added in reaction kettle under room temperature and are stirred by the speed of 400r/min
After 30min, 85 DEG C are warming up to, after continuing to stir to polyvinyl alcohol by the speed of 400r/min and being completely dissolved, is added while stirring
Bentonite, polyethylene glycol oxide and the Starch with Acrylic Acid weighed receives graft copolymer, continues to be warming up to 90 DEG C, by 800r/min
Speed stir 1.5h, at this time stop heating, continue stirring be cooled to room temperature to feed liquid, obtain coating feed liquid；
(4) compound fertilizer granules that step (2) obtains are put into the rotary drum of rotation, by the coating feed liquid liter in step (3)
Temperature is to after 75 DEG C, after coating feed liquid is equably sprayed on the compound fertilizer granules surface using high-pressure spray-painted rifle, air drying
To water content less than 1% to get the soil conditioner.
Comparative example 1
It is identical as the preparation process of embodiment 1, unlike prepare in the raw material of soil conditioner and lack bentonite, clothing health
Acid, polyvinyl alcohol, polyethylene glycol oxide, starch graft acrylic acid sodium.
Comparative example 2
It is identical as the preparation process of embodiment 1, unlike prepare in the raw material of soil conditioner and lack bentonite.
Comparative example 3
It is identical as the preparation process of embodiment 1, unlike prepare in the raw material of soil conditioner and lack itaconic acid.
Comparative example 4
It is identical as the preparation process of embodiment 1, unlike prepare in the raw material of soil conditioner and lack polyvinyl alcohol.
Comparative example 5
It is identical as the preparation process of embodiment 1, unlike prepare in the raw material of soil conditioner and lack polyethylene glycol oxide.
Comparative example 6
It is identical as the preparation process of embodiment 1, unlike prepare in the raw material of soil conditioner and lack starch-grafted third
Olefin(e) acid sodium.
Comparative example 7
Using the soil conditioner in the Chinese patent disclosed embodiment 1 of Patent No. CN103694028A.
Compliance test result：10 pieces of almost the same plot of planning condition, wherein 8 pieces of ground plantation same breeds and specification basic one
The sweet potato of cause applies the soil conditioner in embodiment 1 and comparative example 1-7, per 1m respectively2Respectively apply 0.5 kilogram of soil in soil
Modifying agent after sweet potato maturation, detects per mu yield；Another 2 pieces of ground plantation same breed and the almost the same corn of specification, respectively
Using the soil conditioner in embodiment 1 and comparative example 7, after corn maturation, per mu yield is detected.Above-mentioned testing result difference
As shown in Table 1 and Table 2：
The per mu yield of 1 each group sweet potato of table
| Test group | Per mu yield (kg) |
| Embodiment 1 | 3242.47 |
| Comparative example 1 | 2318.19 |
| Comparative example 2 | 2656.21 |
| Comparative example 3 | 2798.35 |
| Comparative example 4 | 2855.68 |
| Comparative example 5 | 2876.51 |
| Comparative example 6 | 2871.37 |
| Comparative example 7 | 2292.56 |
The per mu yield of 2 each group corn of table
| Test group | Per mu yield (kg) |
| Embodiment 1 | 988.37 |
| Comparative example 7 | 875.42 |
By the combination table 2 of table 1 it is found that the per mu yield of embodiment 1 is apparently higher than comparative example 1-7, illustrate the soil of the present invention
Earth modifying agent can effectively promote the yield of crop, and the effect that soil conditioner is reached in the present invention is that all raw materials are matched jointly
Close obtain as a result, the per mu yield of crop can be influenced by lacking a certain ingredient.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the claims of the present invention.
Claims (6)
1. a kind of soil conditioner, which is characterized in that include the raw material components of following parts by weight：25-40 parts of ammonium phosphate, potassium chloride
12-25 parts, 4-7 parts of magnesium chloride, 10-20 parts of humic acid potassium, 2-4 parts of potassium para-nitrophenate, 5-9 parts of calcium nitrate, 3-7 parts of wilfordine,
6-10 parts of zinc chloride, 8-15 parts of bentonite, 4-7 parts of itaconic acid, 3-6 parts of polyvinyl alcohol, 2-4 parts of polyethylene glycol oxide and starch-the third
Olefin(e) acid receives 3-6 parts of graft copolymer.
2. a kind of soil conditioner according to claim 1, which is characterized in that include the raw material components of following parts by weight：Phosphorus
30 parts of sour ammonium, 18 parts of potassium chloride, 5 parts of magnesium chloride, 14 parts of humic acid potassium, 3 parts of potassium para-nitrophenate, 6 parts of calcium nitrate, 6 parts of wilfordine,
8 parts of zinc chloride, 11 parts of bentonite, 6 parts of itaconic acid, 5 parts of polyvinyl alcohol, 3 parts of polyethylene glycol oxide, Starch with Acrylic Acid receive grafting altogether
5 parts of polymers.
3. a kind of soil conditioner according to claim 1, which is characterized in that include the raw material components of following parts by weight：Phosphorus
38 parts of sour ammonium, 22 parts of potassium chloride, 6 parts of magnesium chloride, 17 parts of humic acid potassium, 3 parts of potassium para-nitrophenate, 8 parts of calcium nitrate, 5 parts of wilfordine,
7 parts of zinc chloride, 14 parts of bentonite, 5 parts of itaconic acid, 4 parts of polyvinyl alcohol, 3 parts of polyethylene glycol oxide, Starch with Acrylic Acid receive grafting altogether
4 parts of polymers.
4. according to a kind of preparation method of soil conditioner described in claim 1-3 any one, which is characterized in that including following
Step：
(1) by weight, each raw material components are weighed, it is spare；
(2) by the ammonium phosphate weighed, potassium chloride, magnesium chloride, humic acid potassium, potassium para-nitrophenate, calcium nitrate, wilfordine and chlorination
After 1.5-2.5h is mixed in zinc, pelletizes and drying to water content is 4-5%, obtain compound fertilizer granules；
(3) itaconic acid weighed and polyvinyl alcohol are added in reaction kettle under room temperature and are stirred by the speed of 300-400r/min
After 20-30min, it is warming up to 80-85 DEG C, after continuing to stir to polyvinyl alcohol by the speed of 300-400r/min and being completely dissolved, side
Stirring side is added the bentonite, polyethylene glycol oxide and the Starch with Acrylic Acid that have weighed and receives graft copolymer, continues to be warming up to 85-90
DEG C, 1-1.5h is stirred by the speed of 600-800r/min, stops heating at this time, continues stirring and is cooled to room temperature to feed liquid, must be wrapped
Coating materials liquid；
(4) compound fertilizer granules that step (2) obtains are put into the rotary drum of rotation, will be made in step (3) using high-pressure spray-painted rifle
After the coating feed liquid obtained is equably sprayed on the compound fertilizer granules surface, air drying to water content is less than 1% to get described
Soil conditioner.
5. a kind of preparation method of soil conditioner according to claim 4, which is characterized in that in step (2), the stirring
Mixing speed be 300-500r/min.
6. a kind of preparation method of soil conditioner according to claim 4, which is characterized in that in step (4), the coating
Temperature of the feed liquid in spraying is 58-75 DEG C.
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| CN109504397A (en) * | 2018-12-29 | 2019-03-22 | 贵州省草业研究所 | A kind of water-loss reducer of soil and preparation method thereof |
| CN109796983A (en) * | 2019-02-19 | 2019-05-24 | 山西唯实农业开发有限公司 | A kind of preparation of soil conditioner and method of administration |
| CN111635278A (en) * | 2020-05-28 | 2020-09-08 | 中国农业科学院茶叶研究所 | Nutrient fertilizer for improving green tea quality and efficient nutrient management method |
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| CN109504397A (en) * | 2018-12-29 | 2019-03-22 | 贵州省草业研究所 | A kind of water-loss reducer of soil and preparation method thereof |
| CN109796983A (en) * | 2019-02-19 | 2019-05-24 | 山西唯实农业开发有限公司 | A kind of preparation of soil conditioner and method of administration |
| CN111635278A (en) * | 2020-05-28 | 2020-09-08 | 中国农业科学院茶叶研究所 | Nutrient fertilizer for improving green tea quality and efficient nutrient management method |
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Application publication date: 20181113 |