CN106900194A - A kind of soil improvement method - Google Patents
A kind of soil improvement method Download PDFInfo
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- CN106900194A CN106900194A CN201710060411.3A CN201710060411A CN106900194A CN 106900194 A CN106900194 A CN 106900194A CN 201710060411 A CN201710060411 A CN 201710060411A CN 106900194 A CN106900194 A CN 106900194A
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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- 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
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C213/00—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
- C07C213/02—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions involving the formation of amino groups from compounds containing hydroxy groups or etherified or esterified hydroxy groups
-
- 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
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- 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
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- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pest Control & Pesticides (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a kind of soil improvement method, the method includes scraping off the thick topsoils of the 10cm of orchard surface soil 1, and the topsoil is mixed with soil conditioner, then tiles again in returning to orchard earth's surface.The method can effectively improve the fertilizer efficiency of lean soil, and can continue to improve the pH value of acidified soil.
Description
Technical field
The invention belongs to technical field of land improvement, and in particular to a kind of method of utilization charcoal improved soil, especially
It is the method using charcoal improved soil fertilizer efficiency and pH value.
Background technology
With the raising of Agricultural Mechanization Degree, traditional organic fertilizer is progressively substituted by agrochemical, causes soil
Fertility is gradually reduced.The balance of soil nutrient how is maintained, improves soil texture and physicochemical property, increase soil fertility, improved
Crop yield, receives extensive concern.As the extension of continuous cropping time, orchard soil acidifying are constantly serious, orchard is caused to produce
Power declines year by year, disease takes place frequently, fruit quality declines.Therefore, how to improve soil environment, culture fertility is to ensure that apple is high
Product, high-quality, the key point of sustainable development.
Charcoal is applied in soil, the physicochemical property of soil can be improved to a certain extent.Containing charcoal
After being applied fertilizer in soil, charcoal can adsorb a part of nutrient fertilizer, increase exchange capacity of absorption of the soil to nutrient fertilizer, from
And delay the release of fertilizer nutrient, and the leaching loss loss of soil nutrient is reduced, increase the utilization rate of nutrient fertilizer, mitigate fertilizer to water
The pollution of domain environment.Apply effectively improve soil water holding capacity after charcoal simultaneously, increase soil aperture, reduce the soil weight
Degree etc., and then increase soil fertility, increase crop yield.Charcoal is to the mechanism of improvement of soil, and the adaptability of soil fits charcoal, rationally sharp
With to improving the crop yields such as grain, the crisis in food that solution current social is faced has important realistic meaning.
CN105075444A discloses a kind of soil improvement method, realizes that the soil in soil to be improved changes by two years
It is good, in First Year, soil to be improved is not carried out into crop-planting, but still provide for including that rotary tillage, fertilising, cultivating for irrigation are arranged
Apply;During rotary tillage, natural soil conditioner is used;During fertilising, application of organic fertilizers;In Second Year, will be to be improved
Soil green manuring crop, and application of organic fertilizers.
CN102823355B discloses a kind of soil improvement method, comprises the following steps:A. organic materials is crushed laggard
Row compost fermentation becomes thoroughly decomposed, the organic fertilizer that must be become thoroughly decomposed;B. the organic fertilizer for becoming thoroughly decomposed and phosphate fertilizer are sufficiently mixed, are uniformly spread fertilizer over the fields in smooth mistake
Earth's surface, and plough under soil, wherein the Rate of Organic Fertilizer for becoming thoroughly decomposed is 800-1500kg/ mu, Phosphorus Fertilizer Rates are 50-100kg/ mus.
CN104641753A discloses soil improver and soil improvement method, and soil improver includes frame, is arranged at
Topsoil process assembly and deep soil processing assembly in frame, topsoil process assembly include topsoil cutter assembly, top layer
Native elevator and topsoil conveyer, topsoil conveyer convey soil backward;Deep soil processing assembly is cut including deep soil
Component, deep soil elevator and deep soil conveyer are cut, deep soil conveyer conveys soil backward;It is arranged at the position in frame
In the deep soil spreading plate at deep soil cutter assembly rear;It is arranged at the topsoil positioned at deep soil spreading plate rear in frame
Spreading plate;The distance between deep soil cutter assembly bottom and earth's surface more than between topsoil cutter assembly bottom and earth's surface away from
From the distance between topsoil spreading plate bottom and ground end are more than the distance between deep soil spreading plate and ground end.The present invention will
Topsoil and deep soil are dug out successively, and topsoil is buried, and deep soil is embedded on topsoil, reach the purpose that soil changes layer.
CN103718689A discloses a kind of tobacco field soil improvement method, main to include taking deep ploughing Subsoiling, is spaced
Crop rotation is planted, straw-returning, is irrigated and is improved, Rational Application fertilizer, development conservation tillage, and regulation soil acidity or alkalinity etc. is adapted to roasting
Cigarette grows measure, mixes good tobacco growth soil, reaches the purpose for improving quality of tobacco and benefit.
CN 106116934A disclose a kind of method for improveing acid soil, the described method comprises the following steps:Step 1:
Biomass carbon is prepared using forest and agricultural biomass, prepare fine grain mushroom slag;Step 2:The biomass carbon that to prepare, mushroom slag with
Acid soil is sufficiently mixed uniformly, obtains soil mixture;Step 3:Soil mixture is carried out into biochemical culture.
CN103828507A discloses a kind of method improved by Snow Agent contaminated soil, and the method is included mushroom bran and sea
It is laid on by Snow Agent contaminated soil surface after afrodite is well mixed.The gas permeability of soil after being improved using the inventive method is good
It is strong with moisture holding capacity, strengthen soil fertility, regulation soluble salt composition.The growth of amended soil suitable for plant is improved, to green
Good facilitation is played in the growth of color plant.
CN104789226A discloses a kind of charcoal base microbe soil conditioner, and it is made up of following component:80~
85 weight portion charcoals, 10~13 weight portion complex microbial communities and 1~2 weight portion oxidized starch adhesive, composite microbial
Strain includes in thing flora:Photosynthetic bacteria, actinomyces, lactic acid bacteria, saccharomycete, bacillus subtilis and bacillus thuringiensis.
" soil local improving combines influence of the short anvil intensive culture to old apple orchard more new effects ", beam blog article etc., China
Gardening meeting Annual Conference thesis summary set in 2014,2014, by soil local improving combination inter-row green covering, spindle high
The control measures such as pruning, inquire into it to apple orchard soil pH value, soil nutrient status, Growth status development and fruit after improvement
The change of soil microbial community composition before and after the influence of real quality, and improvement, updates to aged apple orchard and rebuilds and overcome
Continuous cropping obstacle has important directive significance.
However, in the above prior art, being usually free of the consistency problem for recognizing charcoal and soil, and lead to
Often not having concurrently improves the effect of soil pH value.This area needs a kind of excellent compatibility, fixed nitrogen getting fat that can have with soil
Efficiency power is strong and can improve the soil improvement method of soil pH value.
The content of the invention
To solve the above problems, by further investigation and many experiments, the improvement that fully have studied soil will for the present inventor
The performance of summation charcoal, the especially characteristic of the worsening reason of continuous cropping apple orchard soil and straw charcoal, it is proposed that following technology
Scheme.
In one aspect of the invention, there is provided a kind of soil improvement method, the method includes:By orchard surface soil 1-
10cm is thick, and preferably 3-8cm thick topsoil is scraped off, and the topsoil is mixed with soil conditioner, and then tiling again returns to
In the earth's surface of orchard.
Preferably, the orchard is the old orchard of continuous cropping more than 10 years.It is highly preferred that the orchard is continuous cropping more than 20 years
Old orchard.
Further, the gross weight meter based on topsoil Yu soil conditioner, the content of soil conditioner is 0.5-
3.0%, preferably 1.0-2.0%.
For the method for the present invention, it is preferable that water was applied every 5 days 1 time, water is applied for field capacity, continue 30 days.
Preferably, the soil conditioner includes charcoal, and charcoal is the charcoal derived from stalk.
Preferably, the soil conditioner includes compatilizer.
The soil conditioner further preferably includes calcium magnesium phosphate.
Preferably, the ratio of the calcium magnesium phosphate and charcoal is 1:5-1:100.
The orchard can be apple orchard.
It is particularly preferred that the soil conditioner includes charcoal and compatilizer, the wherein weight of charcoal and compatilizer
Than being 200:1-50:1, the compatilizer is the compound shown in lower formula (I):
Preferably, the charcoal is the charcoal derived from stalk, it is highly preferred that the charcoal is derived from cotton
The charcoal of stalk.
The compatilizer contains strong adsorptivity group hydroxy, and contains ammonium ion, can be by Hyarogen-bonding and just
Negative electrical charge active force it is strong be adsorbed in the surface of clay surface and charcoal, so as to strengthen the combination of the two, improve soil and change
Good effect.In addition, through research it has also been found that, the compatilizer also have special adsorption, the compatilizer can enter soil clay crystal layer between,
Generation intercalation is adsorbed, and because it contains cation and hydroxyl base that hydrogen bond and Van der Waals force can be formed with bentonite surface
Group, therefore the hydrone between the bentonite crystal layer that can drain, effectively suppress the lattice dilatation of improved soil.
The compatilizer can easily be synthesized by following method:Measure triethanolamine add reaction vessel in,
50-80 DEG C of required temperature is risen to after logical nitrogen, bromopropene is subsequently adding and is kept condensing reflux to react 1-6 hours, by reaction system
Room temperature is cooled to, using ethyl acetate and absolute ethyl alcohol mixed solvent (1:3-3:1 volume ratio) recrystallize to obtain white powder, vacuum
Dry, obtain final product compatilizer finished product.
Nitrogen-atoms can also be chelated with the polluted heavy metals ion in soil in the compatilizer, so as to by heavy metal
Ion is fixed, it is to avoid it is migrated into crop.
Preferably, the soil conditioner also includes calcium magnesium phosphate.The ratio of the calcium magnesium phosphate and charcoal is 1:5-
1:100.Available phosphorus content (the P of the calcium magnesium phosphate2O5) it is preferably greater than 16.0%.
In the present invention, charcoal can also play synergistic effect to calcium magnesium phosphate, and calcium magnesium phosphate can be promoted water-soluble
The release of phosphorus, improves its Phosphorus supply capacity, more preferably meets absorption of the crop to phosphorus.
The charcoal is preferably the charcoal derived from cotton stalk.The charcoal can be obtained by the following method,
The method is comprised the following steps:(1) cotton stalk is cut into a section material, the average length of section material is 0.5cm-2cm, preferably 0.5-
1.0cm, most preferably 0.8cm;(2) cotton stalk section material is immersed in NH4In Cl solution, 1-5h is soaked at 50-80 DEG C;(3)
The soaking cotton stalk section material of step (2) is taken out, is drained;(4) the cotton stalk section material after draining is placed in container,
The vapor (also making water vapour) that temperature is 150-400 DEG C is passed through, 2-6h is heated;(5) room temperature is subsequently cooled to, hydrochloric acid solution is used
Carbonizing production is fully washed, then with distillation water washing, until the pH of wash solution is 6-7, is then dried, obtain final product charcoal.
Preferably, the vapor is not oxygenous.
The vapor is preferably contained in the nitrogen of vapor stereometer 10-50v%.
In the method for the invention, the NH4Cl solution is the aqueous solution, and its concentration is 0.1-0.5mol/L.
Preferably, the temperature of the vapor is 350 DEG C.
The cotton stalk and NH4The mass ratio of Cl solution is preferably 1:2-1:5.
Optionally and preferably, before step (1), also including being pre-processed to cotton stalk, the pretreatment includes
Remove the cotton leaf and levant cotton exocarp on cotton stalk.
The container can be charing container.The charing container is preferably tube furnace or tunnel type heating container.
It is particularly preferred that the vapor in step (4) contains the NH based on vapor stereometer 5-10v%3。
Charcoal obtained in the inventive method with frequently with destructive distillation (thermal decomposition) or using inert gas for example nitrogen work
Compared for carrier gas carries out decomposing obtained charcoal, because high-temperature vapor has high osmosis, carbonization temperature is relatively low and the time is short,
Using for high-temperature vapor causes that the charcoal for preparing has abundant pore structure, and compared with art methods, can
Retain and obtain higher amount organic matter so that biomass carbon when as soil improvement composition with fertilizer efficiency higher.
Cotton stalk pyrolysis charring refers to that cotton stalk is pyrolyzed under the conditions of uniform temperature, by carbonization condition
Control, after the larger molecular organicses inside raw material is heated decompose, ultimately generate solid product charcoal and/or other height be attached
Value-added product.Cotton stalk has the biochemistry antidecomposition of height through the charcoal that anaerobic high temperature pyrolysis are obtained, and direct
Also the stability that can significantly lift carbon base in soil is compared in field.Therefore cotton stalk charing is considered as a kind of important CO2
Emission reduction and increase the approach of extra earning.
By the inventive method, additionally it is possible to obtain the Carbon yield that obtains higher, the yield of the charcoal of the inventive method is 50-
70%, preferably 60%.In contrast, in the method thermally decomposed for carrier gas is employed nitrogen as, Carbon yield or
It is for about 40% to obtain charcoal rate.
In prepared by existing general charcoal, zinc chloride is added as chemical activating agent.However, the inventors discovered that,
Existing charcoal is substantially and prepares what is made for absorption activated carbon, if biomass carbon obtained in this method used
In soil improvement or reparation, then can be to undesirable zinc ion be introduced in soil, zinc ion can enter in planted crop, enter
And bring harm to human body.Therefore, the present inventor is by research, using NH4Used as activator, its activation effect compares zinc chloride to Cl
It is lower slightly, but harm will not be brought to soil, and the ammonium for remaining can also bring the nitrogen of fertility synergy to soil.Using
NH4Cl is as activator in the prior art there is not yet report.
For the present invention, compared with simple vapor is carbonized, the presence of nitrogen can improve the calorific value of charing medium, carry
The efficiency of heating surface high is so as to improve charing efficiency, while the consumption of steam can also be saved, in addition, the addition for passing through nitrogen, and can be with
Partial vapour pressure needed for regulation, makes technological operation more flexible.
The present inventor also found through research, if being crushed cotton stalk according to conventional practices to carry out charcoal
Change, its cellulose texture can be influenceed, and then the form and structure of obtained charcoal can be influenceed in carbonization process.For soil
The charcoal of improvement and the activated carbon for other purposes such as adsorbent, there is different requirements, research hair in property and form
The undesirable charing of charcoal for being now used for soil improvement is complete, as the possible effect of not thorough carbonizing production more preferably, in this feelings
Can either be delivered under condition charcoal porous a little, can retain what the biological nutrient of biomass was for example not exclusively carbonized again
Organic matter such as cellulose etc..If crush and then being carbonized cotton stalk, easily make the complete charcoal of cotton stalk
Change, and increased process energy consumption and cost.When being carbonized using section shape cotton stalk using the method for the present invention, from straw
To outside, gradually more fully, i.e., outer layer charcoal protects internal not exclusively carbonizing production, can be by charcoal and biology for charing at the center of stalk
The advantage of nutritional ingredient is fully combined.Even if the product that will be obtained is crushed, it is also possible to retain enough ASI systematic approach.
If it will be understood by those skilled in the art that not doing truncation, cannot effectively impregnate and carbonize, very hemp is carried out to process bands
It is tired.Research shows that the average length of section material is the most favourable when being 0.5cm-2cm, preferably 0.5-1.0cm, higher or lower than the model
To enclose all be difficult to and obtain preferably activation or charred effect.
The carbonizing production obtained according to the inventive method is can be seen that by the sem analysis of charcoal remain certain fibre
The plain form of dimension.In addition, can be seen that obtained charcoal and there is surface area high from its irregular and matte finish.In charing
During, the evaporation of ammonium chloride leaves abundant hole in charcoal.
Because charcoal of the invention is rich in organic carbon, soil organic carbon can be increased, after being manured into soil, it can be made
Keep stabilization for a long time and be difficult to be decomposed by the microorganisms in a short time, its organic carbon can major part preserve, and can reduce
By the nitrogen nutrition that the mineralization of carbon is consumed, so as to compared with straw-returning and using hog manure and common carbonization product energy
Enough significantly improve soil organic matter and total nitrogen content.
In the step (4), pressure is preferably 0.1-0.5MPa.
For the present invention, it is described drain with this area to drain implication essentially identical, refer to drip except most of water, no
Influence subsequent operation.
In a preferred embodiment, the BET specific surface area (S of charcoal of the inventionBET) it is 200-1800m2/ g,
Preferably 1400-1800m2/g。
It is highly preferred that biological carbon surface of the invention is rich in oxygen-containing functional group.Can be dramatically increased rich in oxygen-containing functional group
The adsorption capacity and exchange activity of charcoal, so as to increase Cation Exchange Capacity in Soils, promote the slow release of nutriment, drop
Low nutrient drip washing, improves plant recovery of nutrient.
Research finds, when introducing NH in vapor3When, it is at high temperature by the carbonyl or hydroxyl with biological carbon surface
Reaction, can produce nitrogen-containing functional group in activated carbon, so that obtained charcoal can provide good nitrogen unit to soil
Element.Course of reaction can be as shown in following equation:
-OH+NH3→-NH2+H2O
With it, the nitrogen content of obtained charcoal can be made than not introducing NH in vapor3When 15-30% high.
Apple orchard soil is in highly acid, and mean ph value is usually 4.5-5.5, the orchard of the continuous cropping for many years such as Shandong Qixia having
Some orchard soils are in extremely strong acidity, and pH value is even below 4.5, and has downward trend year by year.Orchard soil acidifying aggravation,
Orchard productivity is caused to decline year by year, disease takes place frequently, taste of fruit and quality decline.In charcoal of the invention preparation, lead to
Cross and NH is introduced in vapor3, make biomass carbon in stronger alkalescence, and the alkalescence has slow releasing function, i.e., with long-term
Sustainability, so as to the pH value for being very beneficial for highly acid orchard improves.
Specific embodiment
As skilled in the art to understand, the specific surface area of charcoal can be determined according to standard BET method, and nutrient is determined
Soil Analysis in Agricultural Chemistry conventional method can be used.Soil pH value is according to soil:Water=1:3.0th, combination electrode method is determined, Exchange alkalinity
With 1.0mol/L Klorvess Liquid drip washing, determined using alkali titration.
Embodiment 1
Cotton stalk takes from Shanghe County of Jinan City, takes the ripe cotton stalk after the harvesting of current year cotton, removes defoliation, shell, nothing
Side shoot need to be removed, experiment chamber ventilated cool place is deposited in stand-by.Cotton stalk is cut into a section material, section material average length is 0.8cm, will
The cotton stalk for blocking is immersed in NH4In Cl solution, 3h is soaked at 60 DEG C, soaking cotton stalk is then taken out into drip
Dry, the cotton stalk after draining is placed in tube heater (from Li Hua Mechanology Inc. of Gongyi City), is passed through temperature for 350 DEG C
Vapor, pressure is 0.3MPa, heats 5h, is subsequently cooled to room temperature, is taken out, with the abundant washed product of 35% hydrochloric acid solution,
Again with distillation water washing, between the pH of wash solution is for 6-7, then dry, obtain final product charcoal.By the charcoal and formula
(I) compatilizer is with 150 shown in:1 weight is obtained soil conditioner than well mixed.
Embodiment 2
Take 17 years thick topsoil 10kg of apple garden earth's surface 5cm of a piece of continuous cropping of Shandong Province's Mengyin and cross air-drying for 2mm sieves
The soil conditioner that soil and 200g embodiments 1 are obtained tiles back original place again after mixing.Selection growing way it is similar, by base fertilizer nutrition
2 tip 10-20 piece leaf dwarfing stocks apple seedlings (coming from Baoji Hua Shengguo industry Co., Ltd) after 7 days precultures of liquid are planted in bucket
In, every barrel is colonized 1 plant, carries out daily management, and cultivation cycle is 12 months, and base fertilizer is 100g urea+200g calcium superphosphate+50g
Potassium sulfate.The pH value of the topsoil is to cultivate within 4.1,45 days the pH value for terminating rear topsoil for culture in 4.75,60 days is tied
The pH value of topsoil is that the pH value that culture in 5.01,90 days terminates rear topsoil is 5.10 after beam.
Comparative example 1
The operation of embodiment 2 is repeated, is differed only in soil conditioner not comprising compatilizer shown in formula (I).Topsoil
The pH value of earth is to cultivate within 4.1,45 days the pH value for terminating rear topsoil for 4.45,60 days cultivate the pH value for terminating rear topsoil
It is that the pH value that culture in 4.51,90 days terminates rear topsoil is 4.55.
During final results, the overall growing way of dwarfing stock apple seedling shows as:Apple seedling in charcoal added with compatilizer is whole
Body is better than the corresponding situation for being not added with compatilizer, and plant is averagely higher by 40%.In addition, when compatilizer is added without, charcoal
Isolated with soil, particularly after watering, isolation situation it is more serious, so as to cause the two cannot effective integration, cause soil
The pH of earth cannot be effectively improved, and the nutrition for also additionally resulting in plant receiving is unbalanced, and upgrowth situation is poor.Add compatilizer
When, soil and charcoal compatibility are good so that the pH value effect of charcoal can obtain continuous and effective release.
This written description discloses the present invention, including optimal mode using example, and also enables those skilled in the art
Manufacture and use the present invention.It is of the invention can patentable scope limited by its appending claims, and can include
Other examples that those skilled in the art expect.If this other examples have literal language not different from claims
Structural element, or if this other examples include equivalent structure of the literal language without substantial differences with claims
Element, then this other examples intention is within the scope of claims.In the case where inconsistent degree is not resulted in, pass through
It is incorporated herein with reference to by all references part of reference herein.
Claims (10)
1. a kind of soil improvement method, the method includes:Surface soil 1-10cm thick topsoils in orchard are scraped off, by the table
Layer soil mixes with soil conditioner, then tiles again in returning to orchard earth's surface.
2. method according to claim 1, the orchard is the old orchard of continuous cropping more than 10 years.
3. method according to claim 2, the orchard is the old orchard of continuous cropping more than 20 years.
4. method according to claim 1 and 2, wherein the gross weight meter based on topsoil Yu soil conditioner, soil
The content of modifying agent is 0.5-3.0%.
5. the method according to any one of preceding claims, water was applied every 5 days 1 time, applied water for field capacity, was continued
30 days.
6. the method according to any one of preceding claims, the soil conditioner includes charcoal, and charcoal is to derive
From the charcoal of stalk.
7. the method according to any one of preceding claims, the soil conditioner includes compatilizer.
8. the method according to any one of preceding claims, the soil conditioner includes calcium magnesium phosphate.
9. the ratio of method according to claim 8, the calcium magnesium phosphate and charcoal is 1:5-1:100.
10. the method according to any one of preceding claims, the orchard is apple orchard.
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CN110663504A (en) * | 2019-11-20 | 2020-01-10 | 江苏省农业科学院 | Urban garden soil improvement method |
CN112167006A (en) * | 2020-09-23 | 2021-01-05 | 中国农业科学院都市农业研究所 | Method for changing facility agriculture organic waste into culture medium by using superheated steam |
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CN106929027A (en) * | 2017-01-25 | 2017-07-07 | 北京凯风泰智能技术研究有限公司 | A kind of soil improvement method |
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CN102671931A (en) * | 2012-05-23 | 2012-09-19 | 青岛贝尔卡环境生物工程有限公司 | Method for improving north acidified soil by utilizing biochar |
CN103444294A (en) * | 2013-09-10 | 2013-12-18 | 武汉市农业科学研究所 | Acid soil improvement method |
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CN106116935A (en) * | 2016-06-08 | 2016-11-16 | 中冶华天工程技术有限公司 | The method of improvement dry land acidic soil |
CN106034459A (en) * | 2016-06-21 | 2016-10-26 | 上海博大园林建设发展有限公司 | Songnen plain saline-alkali soil comprehensive improvement method |
CN106929027A (en) * | 2017-01-25 | 2017-07-07 | 北京凯风泰智能技术研究有限公司 | A kind of soil improvement method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110663504A (en) * | 2019-11-20 | 2020-01-10 | 江苏省农业科学院 | Urban garden soil improvement method |
CN112167006A (en) * | 2020-09-23 | 2021-01-05 | 中国农业科学院都市农业研究所 | Method for changing facility agriculture organic waste into culture medium by using superheated steam |
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