CN110205136A - A kind of nanometer of humic acid preparation and its application in alkaline land improving - Google Patents
A kind of nanometer of humic acid preparation and its application in alkaline land improving Download PDFInfo
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- CN110205136A CN110205136A CN201910433773.1A CN201910433773A CN110205136A CN 110205136 A CN110205136 A CN 110205136A CN 201910433773 A CN201910433773 A CN 201910433773A CN 110205136 A CN110205136 A CN 110205136A
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- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000004021 humic acid Substances 0.000 title claims abstract description 89
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 239000002689 soil Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000243 solution Substances 0.000 claims abstract description 29
- 239000003077 lignite Substances 0.000 claims abstract description 24
- 239000003595 mist Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000010790 dilution Methods 0.000 claims abstract description 8
- 239000012895 dilution Substances 0.000 claims abstract description 8
- 230000003213 activating effect Effects 0.000 claims abstract description 7
- 239000003112 inhibitor Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 14
- 230000001376 precipitating effect Effects 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 9
- 230000008595 infiltration Effects 0.000 claims description 9
- 238000001764 infiltration Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 239000012047 saturated solution Substances 0.000 claims description 5
- 229930183111 sapindoside Natural products 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 230000001976 improved effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000003384 small molecules Chemical class 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940079920 digestives acid preparations Drugs 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 methoxyl group Chemical group 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 125000004151 quinonyl group Chemical group 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/32—Prepolymers; Macromolecular compounds of natural origin, e.g. cellulosic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The present invention provides a kind of nanometer of humic acid preparation, and the nanometer humic acid preparation is made of nanometer humic acid solution and impervious surface's activating agent；The present invention also provides application of a kind of nanometer of humic acid preparation in alkaline land improving, nanometer humic acid preparation is diluted with water 20 times, obtain a nanometer humic acid inhibitor dilutions, then it is sprayed 1-2 times wait improve mist on salt-soda soil, the mist discharge rate of loam is 10 kgs/acre, and the mist discharge rate of sandy soil is 20 kgs/acre；The humic acid solution that the present invention is extracted from lignite, partial size are less than 100nm, pH 7, solid content Han Liang≤2%；High pressure is not taken, is added without lye, is extracted using micro-electrolytic water, is pure physical means, and environment-friendly high-efficiency, humic acid utilization rate is high, and formation partial size is smaller, and diffusional area is wider in the soil, and dosage is few, acts in soil, and humic acid activity is bigger, and improved effect is good.
Description
Technical field
The present invention relates to a kind of nanometer of humic acid preparation and its applications in alkaline land improving, belong to the application of humic acid
Technical field.
Background technique
Humic acid is animals and plants remains, mainly the remains of plant, by the decomposition and conversion of microorganism and geochemical
A kind of organic substance that a series of processes learned are caused and accumulated.Its total amount is surprisingly big, and number is in terms of trillion tons.Rivers
Hu Hai, soil coal mine have its trace in most of earth's surface.Due to being widely present for it, so influence to the earth is also very
Greatly, it is related to the circulation of carbon, mineral migrate accumulation, soil fertility, the ecological balance etc..
Humic acid is the larger molecular organics matter being widely present in nature, and the basic structure of humic acid macromolecular is aromatic ring
And alicyclic ring, the functional groups such as carboxyl, hydroxyl, carbonyl, quinonyl, methoxyl group are connected on ring；Humic acid can be used for the soil in salt-soda soil
Improvement, but existing humic acid is usually the black powder of 60-80 mesh, i.e., partial size is 0.18-0.25mm, and partial size is larger, than
Surface area is small, and in soil improvement, usage amount is big, and improved effect is bad.
Those skilled in the art want the approach such as to reduce the partial size of humic acid, for example pass through grinding or crush always, but are grinding
Or crush when, humic acid powder be easy to agglomeration, it is tacky, lead to not be reduced to Nano grade.
CN107266690A discloses a kind of nanometer of humic acid potassium and its production method, by one of weathered coal and lignite
Or the mixture of two kinds of arbitrary proportions crushes, and is added to the water, and obtains suspension, and dispersing agent is added, then carries out cracking reaction, splits
Solution reaction temperature is 60 DEG C hereinafter, pressure is 15-20MPa, time 30-45min, grinds 5-15min after cracking, in suspension
Solid particle size is reduced to 2 μm hereinafter, potassium hydroxide is added, and normal-temperature reaction 30-45min obtains slurry, is spray-dried, obtained
To average grain diameter 100-500nm nanometer humic acid potassium.It needs that dispersing agent is added, and avoids reuniting；It is split using high pressure
Solution, then grinds, solid material partial size is reduced to 2 μm or less；Dual folded activating technology is recycled, by adding alkali to react, is extracted
Small molecule carbochain and middle microelement in raw material, small molecule carbochain generate shorter organic carbochain after reaction；Meanwhile having
Machine carbochain generates chelatropic reaction with the middle microelement extracted, obtains humic acid potassium.
Deficiency existing for the patent are as follows:
(1) it needs to be cracked using extra-high voltage, at high cost, energy consumption is high, the high requirements on the equipment；
(2) it needs to be added lye, extracts the small molecule carbochain in raw material, and then obtain shorter organic carbochain, but it is prepared
Humic acid potassium, in alkalinity, change the acid-base property of humic acid；
(3) when being added without lye, solid material partial size is only lowered to 2 μm in extracting solution, and nanometer is not achieved in the partial size of humic acid
Grade.
In addition, humic acid is not readily dissolved in water, when being applied to alkaline land improving, diffusivity is poor in the soil, limits
Its application effect in salt-soda soil.
Summary of the invention
To solve the shortcomings of the prior art, the present invention provides a kind of nanometer of humic acid preparation and its in alkaline land improving
In application, realize following goal of the invention:
(1) when extracting humic acid solution from lignite, high pressure is not taken, is added without lye, the nanometer humic acid solution of preparation, grain
Diameter is less than 100nm, pH 7；
(2) the nanometer humic acid preparation, permeability is strong, diffusivity is good in improvement alkaline land soil, and dosage is few, effect is big.
For achieving the above object, using following technical scheme:
A kind of nanometer of humic acid preparation, the nanometer humic acid preparation, by nanometer humic acid solution and impervious surface's activating agent
Composition.
It is further improvement to above-mentioned technical proposal below:
The mass ratio of the nanometer humic acid solution and impervious surface's activating agent is 95-105:1；The impervious surface is living
Property agent be sapindoside.
The nanometer humic acid solution, pH 7, wherein quality Han Liang≤2% of humic acid；Partial size 10-100nm, 50-
100nm or less particle size content reaches 80% or more.
The preparation method of the nanometer humic acid solution, comprising the following steps: drying crushes, infiltration, and grinding, precipitating are cut
It cuts, precipitate.
The drying, crushing by lignite drying, are crushed to 10 μm hereinafter, obtaining brown coal powder；The lignite, humic acid contain
Amount is in 30wt% or more.
The infiltration is added micro-electrolytic water and carries out infiltration 1.8-2.2 hours to brown coal powder；The micro-electrolytic water and brown coal powder
Volume ratio be 2:1.
The micro-electrolytic water, pH 13.8 have -800mv current potential below.
The grinding, precipitating, continuously add micro-electrolytic water, and the volume ratio of micro-electrolytic water and brown coal powder is 14-19:1, grinding
1-2 hours, then precipitating for 24 hours, take upper layer saturated solution.
Saturated solution is warming up to 55-65 DEG C, then shears 2-3h under 4000-6000r/min again by the shearing, precipitating,
Until pH value of solution is 9, a nanometer humic acid solution is obtained after precipitating 48h.
Nanometer humic acid preparation is diluted with water 20 times by application of a kind of nanometer of humic acid preparation in alkaline land improving,
A nanometer humic acid inhibitor dilutions are obtained, mist sprays in salt-soda soil to be improved, and the mist discharge rate of loam is 10 kgs/acre, sandy soil
Mist discharge rate be 20 kgs/acre, general period primary wait improve on salt-soda soil mist spray, turns over, then mist spray is primary, then irrigates
Water, rainy season set spray 1 time before or before snowing.
Compared with prior art, technical solution of the present invention has the advantages that
(1) humic acid solution that the present invention is extracted from lignite, partial size are less than 100nm, pH 7, solid content Han Liang≤2%；No
It takes high pressure, be added without lye, extracted using micro-electrolytic water, be pure physical means, environment-friendly high-efficiency, humic acid utilization rate is high, shape
Smaller at partial size, diffusional area is wider in the soil, and dosage is few, acts in soil, and humic acid activity is bigger, improved effect
It is good；It is scaled a nanometer dosage for humic acid preparation are as follows: loam is 0.5 kg/acre, and sandy soil are 1 kg/acre, is sprayed 1-2 times.
(2) nanometer humic acid preparation of the present invention, after improvement 2-3 months, alkaline land soil PH drops to from 9.0
7.9；Salinity drops to 1.244 ‰ from 2.80 ‰.
Specific embodiment
1 a kind of nanometer of humic acid preparation of embodiment
The nanometer humic acid preparation, is made of nanometer humic acid solution and impervious surface's activating agent, mass ratio 95-
105:1；
Impervious surface's activating agent is sapindoside；Sapindoside accelerates nanometer humic acid as soil permeability agent
Preferably diffusion in the soil, reduces the dosage of humic acid.
The nanometer humic acid solution, pH 7, wherein mass content Wei≤2% of humic acid, partial size 10-100nm,
The particle size content of 50-100nm reaches 80% or more.
The nanometer humic acid solution the preparation method comprises the following steps:
(1) it dries, crush
By lignite drying, 10 μm are crushed to, obtains brown coal powder；
The lignite, humic acid content is in 30wt% or more.
(2) it infiltrates
Micro-electrolytic water is added, infiltration 2 hours or so is carried out to brown coal powder；The volume ratio of the micro-electrolytic water and brown coal powder is 2:1；
The micro-electrolytic water is that tap water is made after electrolysis, the micro-electrolytic water obtained after electrolysis, PH 13.8, have-
800mv current potential below, dispersion force is big, and penetration is strong, is beneficial to the better extraction and application of micro-nutrient element in lignite.
(3) it grinds, precipitate
Continuously add micro-electrolytic water, the volume ratio of micro-electrolytic water and brown coal powder is 14-19:1, and grinding, then precipitating for 24 hours, takes
Layer saturated solution；
Lapping mode be it is wet grind, using universal grinding machine, grind 1-2 hours.
(4) it shears, precipitate
Saturated solution is warming up to 60 DEG C, then shears 2-3h under 4000-6000r/min again, until pH value of solution is 9, precipitating
A nanometer humic acid solution is obtained after 48h.
For this patent using the negative potential that has of micro-electrolytic water, it is deep brown that absorption dispersion humic acid particle, which forms aaerosol solution,
Color viscous solution, stabilization do not precipitate, and humic acid partial size is between 10-100nm.
The present invention extracts humic acid using micro-electrolytic water, dissolves compared to being infiltrated with lye, and lignite humic acid utilization rate is high, more
High-efficiency environment friendly, it is at low cost, and not will form the humate of alkalinity.
The present invention is physics green means, and process simplification is more environmentally-friendly, and low energy consumption.
Application of the 2 above-mentioned nanometers of humic acid preparations of embodiment in alkaline land improving
A, general period
Nanometer humic acid preparation is diluted with water 20 times, a nanometer humic acid inhibitor dilutions are obtained, then in salt-soda soil to be improved
Upper mist spray is primary, turns over, then mist spray is primary, then sprinkles profoundly water.
The usage amount of nanometer humic acid inhibitor dilutions are as follows: the mist discharge rate of loam is 10 kgs/acre, and the mist discharge rate of sandy soil is
20 kgs/acre；
Requirement to level of ground water: 4 meters of loam is hereinafter, 3 meters of sandy soil or less；
After improveing 2-3 months, alkaline land soil PH drops to 7.8 from 9.1；Salinity drops to 1.033 ‰ from 2.83 ‰.
B, particular time
Before rainy season set or before snowing, nanometer humic acid preparation is diluted with water 20 times, obtains a nanometer humic acid preparation
Dilution, then primary wait improve mist spray on salt-soda soil；
The usage amount of nanometer humic acid inhibitor dilutions are as follows: the mist discharge rate of loam is 10 kgs/acre, and the mist discharge rate of sandy soil is 20 public
Pound/acre；
Requirement to level of ground water: 4 meters of loam is hereinafter, 3 meters of sandy soil or less；
After improveing 2-3 months, alkaline land soil PH drops to 7.9 from 9.0；Salinity drops to 1.244 ‰ from 2.80 ‰.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
It, for those skilled in the art, still can be with although describing the invention in detail with reference to the foregoing embodiments
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of nanometer of humic acid preparation, it is characterised in that: the nanometer humic acid preparation, by nanometer humic acid solution and infiltration
Property surfactant composition.
2. a kind of nanometer of humic acid preparation according to claim 1, it is characterised in that: the nanometer humic acid solution and infiltration
The mass ratio of permeability surfactant is 95-105:1；Impervious surface's activating agent is sapindoside.
3. a kind of nanometer of humic acid preparation according to claim 1, it is characterised in that: the nanometer humic acid solution, pH
It is 7, wherein quality Han Liang≤2% of humic acid；Partial size 10-100nm, 50-100nm or less particle size content can achieve 80% with
On.
4. a kind of nanometer of humic acid preparation according to claim 1, it is characterised in that: the system of the nanometer humic acid solution
Preparation Method, comprising the following steps: drying crushes, infiltration, grinding, precipitating, shearing, precipitating.
5. a kind of nanometer of humic acid preparation according to claim 4, it is characterised in that: lignite is dried in the drying, crushing
It does, be crushed to 10 μm hereinafter, obtaining brown coal powder；The lignite, humic acid content is in 30wt% or more.
6. a kind of nanometer of humic acid preparation according to claim 4, it is characterised in that: micro-electrolytic water is added in the infiltration
Infiltration 1.8-2.2 hours is carried out to brown coal powder；The volume ratio of the micro-electrolytic water and brown coal powder is 2:1.
7. a kind of nanometer of humic acid preparation according to claim 6, it is characterised in that: the micro-electrolytic water, pH 13.8,
With -800mv current potential below.
8. a kind of nanometer of humic acid preparation according to claim 4, it is characterised in that: the grinding, precipitating continuously add
The volume ratio of micro-electrolytic water, micro-electrolytic water and brown coal powder is 14-19:1, grinds 1-2 hours, then precipitating for 24 hours, takes upper layer to be saturated
Solution.
9. a kind of nanometer of humic acid preparation according to claim 8, it is characterised in that: the shearing, precipitating will be saturated molten
Liquid is warming up to 55-65 DEG C, then shears 2-3h under 4000-6000r/min again, until pH value of solution is 9, obtains after precipitating 48h
Nanometer humic acid solution.
10. application of a kind of nanometer of humic acid preparation in alkaline land improving, it is characterised in that: nanometer humic acid preparation is added water
20 times of dilution, obtains a nanometer humic acid inhibitor dilutions, then sprays 1-2 times wait improve mist on salt-soda soil, the mist discharge rate of loam
It is 10 kgs/acre, the mist discharge rate of sandy soil is 20 kgs/acre；General period once, turns over wait improve mist spray on salt-soda soil, then
Mist spray is primary, then sprinkles profoundly water；It is sprayed 1 time before rainy season set or before snowing.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114671714A (en) * | 2022-04-27 | 2022-06-28 | 山东艾科农业科技有限公司 | Preparation method and application of mineral humic acid |
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| CN105801307A (en) * | 2016-04-25 | 2016-07-27 | 浙江丰瑜生态科技有限公司 | Method for producing nanometer humus refined powder |
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| CN105801307A (en) * | 2016-04-25 | 2016-07-27 | 浙江丰瑜生态科技有限公司 | Method for producing nanometer humus refined powder |
| CN106281339A (en) * | 2016-08-15 | 2017-01-04 | 四川安达农森科技股份有限公司 | One is loosened the soil, water conservation fertilizer conservation soil conditioner |
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Inventor after: Lang Wenpei Inventor after: Wei Yongyang Inventor before: Wei Yongyang Inventor before: Lang Wenpei |
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Application publication date: 20190906 |