CN110078566A - A kind of modifying agent and preparation method thereof for soil of for beach saline-alkali planting trees - Google Patents
A kind of modifying agent and preparation method thereof for soil of for beach saline-alkali planting trees Download PDFInfo
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- CN110078566A CN110078566A CN201910479994.2A CN201910479994A CN110078566A CN 110078566 A CN110078566 A CN 110078566A CN 201910479994 A CN201910479994 A CN 201910479994A CN 110078566 A CN110078566 A CN 110078566A
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- 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
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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
- C05G3/80—Soil conditioners
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Abstract
The invention discloses a kind of modifying agents and preparation method thereof of soil of for beach saline-alkali planting trees, and the modifying agent that soil is planted trees for beach saline-alkali includes following raw materials: 30-36 parts of blocking agent, 0.01-0.03 parts of acid regulator, 7-10 parts of organic fertilizer, 0.2-0.8 parts of sedimentation agent and 0.01-0.03 parts of microbial bacterial agent.The invention has the benefit that the modifying agent of soil of the present invention of planting trees for beach saline-alkali is with can improveing beach saline-alkali, by the fixed free sodium ion of Halophiles in remaining cellulose surface difficult to degrade, the alkali in soil is neutralized by the effect of Halophiles and blocking agent, promote the formation of soil aggregate structure, adjust the pore structure of soil, the soil fertility in salt-soda soil can also be significantly improved simultaneously by reducing alkalization of soils degree, increase the content of salt-soda soil organic matter, achieve the purpose that improve salt-soda soil, improves the survival rate of greening and afforestation.
Description
Technical field
The present invention relates to soil conditioner technical fields, and in particular to a kind of improvement for soil of for beach saline-alkali planting trees
Agent and preparation method thereof.
Background technique
China's overuse of chemical fertilizer bring soil hardening for a long time, soil fertility decline, environmental pollution, ecology are broken
Bad and agricultural and sideline product quality decline problem, the deep great attention by national correlation department and agricultural science and technology circle, chemical fertilizer
A large amount of applications, cause soil hardening, the drawbacks of fertility decline and agriculture production cost are continuously improved.Exist in China a large amount of
Salt-soda soil, the yield that crops are planted in these soils is very low, or even total crop failure, if not planting crops on salt-soda soil, lets alone
Regardless of, the soil that salt-soda soil can become better slowly corrodes, and the area in salt-soda soil can be increasing, so salt-soda soil is administered and improves,
It is very urgent thing.
In order to improve the situation in salt-soda soil, prevents saline alkali land area from continuing to expand, also for the landforms in beautification salt-soda soil, need
It to plant trees on salt-soda soil, but prevent from planting trees on salt-soda soil using traditional tree planting, survival rate is very low.
Summary of the invention
The object of the present invention is to provide it is a kind of can improve sapling survival rate improvement beach saline-alkali soil of planting trees formula and
Preparation method.
A kind of modifying agent for soil of for beach saline-alkali planting trees, the modifying agent of the soil of planting trees for beach saline-alkali
Raw material including following weight parts: 30-36 parts of blocking agent, 7-10 parts of organic fertilizer, sinks at 0.01-0.03 parts of acid regulator
0.2-0.8 parts and microbial bacterial agent 0.01-0.03 parts of depressant prescription.
Further, the modifying agent of the soil of planting trees for beach saline-alkali, the soil of planting trees for beach saline-alkali
The modifying agent of earth includes the raw material of following weight parts: 33 parts of blocking agent, 0.02 part of acid regulator, 8.6 parts of organic fertilizer, sedimentation
0.5 part of agent, 0.02 part of microbial bacterial agent.
Further, the blocking agent is made of inorganic nano material and filler；The inorganic nano material and filler
Weight ratio is 15:18；The inorganic nano material is flyash；The filler is zeolite powder.
Further, the acid regulator is zinc sulfate；The sedimentation agent is ferrous sulfate；The organic fertilizer is by corruption
Grow acid, yellow humic acid and calcium superphosphate composition；Humic acid, yellow humic acid, calcium superphosphate weight ratio be 8:0.2:0.4.
Further, the microorganism contained in the microbial bacterial agent includes Natrinema altunense sp and bacillus.
Further, the adding proportion of Natrinema altunense sp and bacillus is 3-5:1.The work of the microbial bacterial agent
Bacterium total amount is greater than 1.0 × 108cfu/g。
Further, the Natrinema altunense sp is Aspergillus terreus bacterial strain, and the bacillus is bacillus licheniformis and side
Spore bacillus.
Aspergillus terreus carries out vegetative propagation in water, carries out sexual reproduction in the soil.It is discharged after cleistothecium rupture
Ascospore, ascospore is sprouted to form mycelia under suitable condition, wraps up soil particle with reticular structure, is formed with bioactivity
Soil aggregate structure.Aspergillus terreus biochemical function: firstly, generating efficient cellulose degraded stalk, soil is increased
The organic matter of earth；And the micropore of about 30-50 microns of size is then formd in those cellulose surfaces difficult to degrade, it can fix
Free sodium ion；Secondly, saline and alkaline condition can induce Halophiles to synthesize a variety of organic acids, such as gallic acid, gluconic acid, lemon
Lemon acid etc., these organic acids can both neutralize the alkali in soil, can also be with complexation of metal ions.In addition, the mitogenetic spore of Halophiles
Son can also be enriched with a part of salt ion in spore.
The cell wall of Natrinema altunense sp by being formed rich in the glycoprotein of acidic amino acid, this cell wall structure it is complete by
Ionic bond maintains, and high Na+ concentration keeps cyto-architectural integrality to be the combination between its cell wall protein subunit
It is required.After going to low-salt environment from hypersaline environment, one side cell wall protein depolymerization is protein monomers, loses cell wall
Completely；Another aspect intraor extracellular ion concentration balance is broken, and cell water swelling finally causes cell wall to rupture, and thallus is complete
Self-dissolving.Using Aspergillus terreus bacterial strain in the embodiment of the present invention, it is micro- to be preserved in China for specially cotton-shaped Aspergillus terreus JYJ-5 bacterial strain
Biological inoculum preservation administration committee common micro-organisms center, deposit number are CGMCC 15368.With the alkaline-resisting spy of salt resistance
Property, can the long-term good growth in sodium salt environment and alkaline environment, wherein sodium salt concentration be 5-15% (grams per milliliter)
High salt conditions under and pH be 7-12 alkaline condition under good can grow, can sodium salt concentration be 5-15%
Long-term good growth in the environment of (grams per milliliter), and organic acid can be secreted, it can be used for being transformed the saline and alkaline of sodium salt environment
Ground.The present inventor takes soil within the scope of soil plough horizon 30cm depth in the acquisition for locality carrying out sample using five point sampling, fills
Entering the vial of sterilization treatment, to take back laboratory spare.Using method of dilution butteron on plate, soil supernatant clear after dilution is applied
It is distributed on the potato dextrose agar (PDA) of addition NaCl to 150.0g/L, is cultivated 4 days under the conditions of pH=10,
One plant of cotton-shaped Aspergillus terreus JYJ-5 of the alkaline-resisting fungal bacterial strain-of salt resistance, this bacterial strain patent applied for are separated to by 3 wheel screenings.
The alkaline-resisting Aspergillus terreus bacterial strain of salt resistance provided by the invention can be grown in the environment of pH is 2.5-12, be in pH
Good growth under the alkaline condition of 7-12.
Bacillus (Bacillus), a section for bacterium, Bacteriaceae can form bacillus or the ball of gemma (endospore)
Bacterium.Including bacillus, Sporolactobacillus, fusobacterium, Desulfotomaculum and Sporosarcina etc..They are externally
Boundary's injurious factor resistance is strong, and distribution is wide, is present in soil, water, air and animal intestinal tract etc..It is adopted in the embodiment of the present invention
It is bacillus licheniformis and bacillus laterosporus, bacillus licheniformis BL06 is purchased in Chinese microorganism strain preservation pipe
Reason committee common micro-organisms center, culture presevation number are CGMCC NO.13462, can promote plant growth；Side spore gemma bar
In China Committee for Culture Collection of Microorganisms's common micro-organisms center, culture presevation number is CGMCC NO.1755 for bacterium buying,
It can be used as microbial manure, improve crop resistance, there is obvious resistance to a variety of viruses, into soil can be effectively improved in soil
Micro-ecological environment increases the humus content of the soil.
Further, the weight ratio that need to improve soil and the modifying agent is 1:3-3:1.
Blocking agent is also receptor antagonist, and referring to can be in conjunction with receptor, and can prevent a kind of ligand of agonist generation effect
Substance；Flyash is the fine ash that catching is got off from the flue gas after coal combustion, is the primary solids waste of coal-burning power plant's discharge.
Flyash has good physicochemical properties, can be widely used in that rich clay, the raw-soil, acid soil and saline and alkaline is transformed
Soil makes up the viscous defect of its thin plate of acid, contains nutrition necessary to the crops such as a large amount of water-soluble silicons, calcium, magnesium, phosphorus in flyash
Element.
Zeolite powder is that natural zeolite grinding carefully forms, and color is light green color, white, rough surface and the porous knot having
Structure makes it have stronger carrying capability, so that material is equably adsorbed on surface, and can be adsorbed onto hole and channel
Interior, the utilizability for improving material also substantially improves the uniformity of mixing, while when the release of micro constitutent can be appropriately extended
Between be more advantageous to crop absorption.
Nutrient contained by organic fertilizer is in organic state more, and crop is difficult to directly utilize, through microbial action, slowly
Various nutrient elements are released, continuously by nutrient supply crop, application of organic fertilizers material can improve soil texture, effectively
Coordinate water, the fertilizer, air and heat in soil, increases soil fertility and fertility.
Humic acid is the larger molecular organics matter being widely present in nature, mainly plant remains, by microorganism
It decomposes and conversion, humic acid can be conducive to nutrient and transmit to crop, and can improve soil with the metal ion clutch in water
Structure is conducive to the growth of crops.
Yellow humic acid is exactly that potassium fulvate is a kind of pure natural minerals activity potassium element fertilizer, and potassium fulvate includes micro member
The multiple nutritional components such as element, rare earth element, plant growth regulator, viral inhibitors, make nutrient it is more sufficient, supply it is more reasonable,
So as to avoid crop due to lacking element caused by various physiological disturbances generation, keep the more vigorous leaf color of crop plant type denseer
Green, lodging tolerance is stronger.Potassium fulvate can timely supplement the nutrient being lost in soil, make soil activating, have life
Power, reduces nutrient continuous cropping disease caused by taken in excess in soil, and product can replace the identical potassium sulfate of content completely
Or potassium chloride and potassium magnesium sulfate, and natural, environmental protection.
Calcium superphosphate is to use sulfuric acid decomposition phosphorus ore phosphate fertilizer directly obtained, and main useful constituent is the hydration of calcium dihydrogen phosphate
Object and phosphoric acid free on a small quantity, also contain sewage calcium sulfate component, belong to water soluble quick-acting phosphate fertilizer.Plant phosphorus, calcium, sulphur can be supplied
Equal elements have improvement basic soil effect.It can be used as base manure, foliage top dressing, foliage spray, be used in mixed way with nitrogenous fertilizer, had solid
Nitrogen effect, reduces the loss of nitrogen, can promote the germination of plant, long root, branch, solid and mature, can be used as producing compound fertilizer
Raw material.
The preparation method of the modifying agent of the soil of planting trees for beach saline-alkali, comprising the following steps:
(1) it is weighed according to the parts by weight of each component spare；
(2) all blocking agents spare in step (1) are mixed, acid regulator and organic is added after mixing
Fertilizer is uniformly mixed and reacts to form mixed material；
(3) sedimentation agent is added in the mixed material obtained to step (2), keeps room temperature reaction 3.5-4.0 hours,
Compounding is granulated, and obtains granule；
(4) microbial bacterial agent is added in the granule that step (3) obtains, is uniformly mixed, obtain described be directed to
It plants trees to beach saline-alkali the modifying agent of soil.
Further, in step (1), the condition for being 25-30 DEG C in whipping temp by acid regulator and organic fertilizer
Under, stirring 40-60min is mixed evenly；In step (2), reaction temperature is 25-30 DEG C, reaction time 3-5h.
Further, the microbial bacterial agent the preparation method comprises the following steps: prepare culture medium, adjustings pH be 7.0-8.0, be inoculated with
Microorganism, culture formed microbial bacterial agent after 5-7 days.
Culture medium are as follows: beef extract agar medium comprising 0.3 part of beef extract, 1 part of peptone, 0.5 part of sodium chloride, fine jade
1 part of rouge, 100 parts of water.
The invention has the benefit that
1, the modifying agent of soil of the present invention of planting trees for beach saline-alkali with can improveing beach saline-alkali, passes through thermophilic salt
The fixed free sodium ion of bacterium in cellulose surface difficult to degrade, by the effect of Halophiles and blocking agent remove metal ion and
Chloride ion promotes the formation of soil aggregate structure, adjusts the pore structure of soil, and reducing alkalization of soils degree can also obviously mention simultaneously
The soil fertility on high salinity ground increases the content of salt-soda soil organic matter, achievees the purpose that improve salt-soda soil, improves greening and afforestation
Survival rate.The organic combination of inert material and organic metabolites improves the soil texture, arable layer curing is accelerated, in plough sole
Saline and alkaline separation layer is spontaneously formed, inhibition is saline and alkaline repeatedly, prevents rehabilitating soil salination once again.
2, the modifying agent of soil of the present invention of planting trees for beach saline-alkali also can effectively improve the pH value of soil, can
Improve the permeability of soil, organic conveying with inorganic nutrients in activating soil increases nutrient availability；Promote the micro- life of rhizosphere
Object activity, effectively breaks soil hardening, improves the respiration of soil, and soil of the present invention of planting trees for beach saline-alkali
Modifying agent there is extremely strong antagonism to the pathogenic microorganism in soil, can be effectively suppressed the growth of pathogenic microorganism with it is numerous
It grows, prevents and reduce soil in soil and pass harm of the microorganism to being used as, achieve the purpose that improve crop quality and yield.
3, by the collective effect of microorganism and blocking agent, acid regulator, sedimentation agent, the mesh in radical cure salt-soda soil is realized
's.
Specific embodiment
Embodiment one
A kind of modifying agent for soil of for beach saline-alkali planting trees, including following raw materials: blocking agent 30kg, acid regulator
0.03kg, organic fertilizer 7kg, sedimentation agent 0.8kg and microbial bacterial agent 0.01kg.
The preparation method of the modifying agent of the soil of planting trees for beach saline-alkali, comprising the following steps:
(1) acid regulator and organic fertilizer are mixed evenly, obtain mixed material；
(2) blocking agent, sedimentation agent are sequentially added into mixed material, is stirred and is reacted, and are compounded to the end of reacting
It is granulated, obtains granule；
(3) microbial bacterial agent is added into granule obtained by step (2), is uniformly mixed, obtain it is described for beach saline-alkali
The modifying agent of tree planting soil.When using the modifying agent, the weight ratio that need to improve soil and the modifying agent is 1:3.
Embodiment two
A kind of modifying agent for soil of for beach saline-alkali planting trees, including following raw materials: blocking agent 36kg, acid regulator
0.01kg, organic fertilizer 10kg, sedimentation agent 0.2kg and microbial bacterial agent 0.03kg.
The blocking agent is made of inorganic nano material and filler, and the weight ratio of inorganic nano material and filler is 2:3；
The organic fertilizer is made of humic acid, yellow humic acid, calcium superphosphate；Humic acid, yellow humic acid, calcium superphosphate
Weight ratio is 8:0.2:0.4；
The microbial bacterial agent is made of Natrinema altunense sp and bacillus；The addition ratio of Natrinema altunense sp and bacillus
Example is 3:1；The viable bacteria total amount of the microbial bacterial agent is 6.0 × 108cfu/g。
The preparation method of the modifying agent of the soil of planting trees for beach saline-alkali, comprising the following steps:
(1) by acid regulator and organic fertilizer under conditions of temperature is 25 DEG C, stirring 40min is mixed evenly,
Obtain mixed material；
(2) blocking agent, sedimentation agent are sequentially added into mixed material, are stirred reaction 3h at being 25 DEG C in temperature, to
Reaction terminates compounding and is granulated, and obtains granule.
(3) culture medium is prepared, adjusts pH7.0, microbe inoculation, culture formed microbial bacterial agent after 5 days, by microbial bacteria
Agent is added in granule, is uniformly mixed, and the modifying agent of the soil of planting trees for beach saline-alkali is obtained.Using the improvement
When agent, the weight ratio that need to improve soil and the modifying agent is 1:3.
Embodiment three
A kind of modifying agent for soil of for beach saline-alkali planting trees, including following raw materials: blocking agent 33kg, acid regulator
0.02kg, organic fertilizer 8.6kg, sedimentation agent 0.5kg, microbial bacterial agent 0.02kg；
The blocking agent is made of flyash and zeolite powder, and the weight ratio of flyash and zeolite powder is 15:18；
The organic fertilizer is made of humic acid, yellow humic acid, calcium superphosphate；Humic acid, yellow humic acid, calcium superphosphate
Weight ratio is 8:0.2:0.4；
The microbial bacterial agent is made of Natrinema altunense sp and bacillus.The Natrinema altunense sp is Aspergillus terreus bacterial strain,
The bacillus is bacillus licheniformis and bacillus laterosporus.The adding proportion of Natrinema altunense sp and bacillus is 5:1；
The viable bacteria total amount of the microbial bacterial agent is 8.0 × 108cfu/g。
The preparation method of the modifying agent of the soil of planting trees for beach saline-alkali, comprising the following steps:
(1) by acid regulator and organic fertilizer under conditions of temperature is 28 DEG C, stirring 50min is mixed evenly,
Obtain mixed material；
(2) blocking agent, sedimentation agent are sequentially added into mixed material, are stirred reaction 4h at being 28 DEG C in temperature, to
Reaction terminates compounding and is granulated, and obtains granule；
(3) culture medium is prepared, adjusts pH7.5, microbe inoculation, culture formed microbial bacterial agent after 6 days, by microbial bacteria
Agent is added in granule, is uniformly mixed, and the modifying agent of the soil of planting trees for beach saline-alkali is obtained.Using the improvement
When agent, the weight ratio that need to improve soil and the modifying agent is 1:1.
Example IV
A kind of modifying agent for soil of for beach saline-alkali planting trees, including following raw materials: blocking agent 33kg, acid regulator
0.02kg, organic fertilizer 8.6kg, sedimentation agent 0.5kg, microbial bacterial agent 0.02kg；
The blocking agent is made of flyash and zeolite powder, and the weight ratio of flyash and zeolite powder is 15:18；
The organic fertilizer is made of humic acid, yellow humic acid, calcium superphosphate；Humic acid, yellow humic acid, calcium superphosphate
Weight ratio is 8:0.2:0.4；
The microbial bacterial agent is made of Natrinema altunense sp and bacillus.The Natrinema altunense sp is Aspergillus terreus bacterial strain,
The bacillus is bacillus licheniformis and bacillus laterosporus.
The preparation method of the modifying agent of the soil of planting trees for beach saline-alkali, comprising the following steps:
(1) by acid regulator and organic fertilizer under conditions of temperature is 30 DEG C, stirring 60min is mixed evenly,
Obtain mixed material；
(2) blocking agent, sedimentation agent are sequentially added into mixed material, are stirred reaction 5h at being 30 DEG C in temperature, to
Reaction terminates compounding and is granulated, and obtains granule；
(3) culture medium is prepared, adjusts pH8.0, microbe inoculation, culture formed microbial bacterial agent after 7 days, by microbial bacteria
Agent is added in granule, is uniformly mixed, and the modifying agent of the soil of planting trees for beach saline-alkali is obtained.Using the improvement
When agent, the weight ratio that need to improve soil and the modifying agent is 3:1.
A kind of application method of the modifying agent of soil of for beach saline-alkali planting trees of the present invention are as follows:
(1) preparation of seedling root reason liquid: microbial bacterial agent is diluted with fresh water, by the microbial bacterial agent after dilution, the present invention
The modifying agent and soil of the soil of planting trees for beach saline-alkali, are uniformly mixed and mud are made, and obtain seedling root reason liquid；
(2) achievement cave is dug, and takes a small amount of modifying agent of the present invention for planting trees soil for beach saline-alkali to shed and is setting
The native wall surface in cave；
(3) soil that step (2) is dug out is mixed with the modifying agent of soil of the present invention of planting trees for beach saline-alkali
It stirs evenly, it is spare to obtain composite soil；
Wherein the dosage of modifying agent can be with are as follows: modifying agent dosage (min)=plant hole volume=plant hole depth3=(soil ball is straight
Diameter+20cm)3, wherein soil ball diameter=diameter of a cross-section of a tree trunk 1.3 meters above the ground * 8
Modifying agent dosage (max)=plant hole volume=plant hole depth3=(soil ball diameter+20cm)3, wherein soil ball diameter=
Diameter of a cross-section of a tree trunk 1.3 meters above the ground * 10
(4) the sapling root that need to be planted is immersed in the resulting seedling root reason liquid of step (1), it is ensured that it is equal that seedling root manages liquid
It is attached to Miao Genshang evenly；
(5) soil of the step (3) after soil conditioner is improved is backfilling into plant pit, backfill depth is about 1-
Then the sapling for being stained with seedling root reason liquid is planted in plant pit, and backfills remaining composite soil by 1.5cm；It has been planted to sapling
Finish, remaining composite soil is disposably shed in tree planting area, and be watered with root water in time.
Test example 1
Practice ground: this, which is experimental field selected, is located at Yancheng, Jiangsu Province, and the Soil K+adsorption in the region is the results show that soil averagely contains
Salt amount is in 12 ‰ or more, pH value 8.4, and organic matter: 4.18g/kg belongs to the barren type salt-soda soil in severe strand, on this place
Mountain China fir, zelkova schneideriana, metasequoia cannot survive substantially in plantation.
Test method: in March, 2016: digging plant pit 90 on the Yancheng, Jiangsu Province soil, and stochastic averagina is divided into 3 groups,
Mountain China fir, second group of plantation zelkova schneideriana, third group plant metasequoia in first group of plantation, improve, change to plant pit soil before planting
Good recipe method are as follows: by the soil dug out in plant pit and the embodiment of the present invention 3 obtain described in plant trees for beach saline-alkali soil
Modifying agent be mixed evenly composite soil is spare, and dig out soil and the soil conditioner of planting trees for beach saline-alkali
Weight ratio is 1:1, when planting trees, need to dilute microbial bacterial agent with fresh water, (weight ratio 100 of fresh water and microbial bacterial agent:
1) by after dilution microbial bacterial agent, of the present invention plant trees for beach saline-alkali the modifying agent of soil and soil is stirred
It is even that mud (weight ratio of microbial bacterial agent, modifying agent and soil after dilution is 50:1:1) is made, obtain seedling root reason liquid；It will need to plant
The sapling root of plant is immersed in seedling root reason liquid, it is ensured that seedling root reason liquid is uniformly adhered to Miao Genshang；It then will on a small quantity originally
The modifying agent of the invention soil of planting trees for beach saline-alkali sheds the native wall surface in plant pit, and the thickness that modifying agent is shed can
For 1cm or so, after the completion of work to be prepared, the soil after soil conditioner is improved is backfilling into plant pit, backfill depth is big
It needs plant pit surrounding uniform compaction (finally ensuring rhizome after generally backfilling for 1-1.5cm (sapling is bigger, and backfill composite soil is fewer)
Portion, which is located at, at 2-3cm, guarantees that tree root comes into full contact with soil below native table) then the sapling for being stained with seedling root reason liquid is planted in
In plant pit, and remaining composite soil is backfilled, when backfill backfills in two times, pays attention to the method for " three bury two step on one mention seedling ", pays attention to simultaneously
Mass of soil is protected in order to avoid damaging, is finished to all tree species plantations in blocks, remaining composite soil is disposably sprinkling upon tree planting area, is watered in time
Root water, while other farming operations can be carried out (such as kind barley or the other industrial crops of plantation).
The modifying agent of soil of the present invention of planting trees for beach saline-alkali is set in terms of improveing soil and after improvement soil
The research of shoot survival percent randomly selects 2 from every group of plant pit, and measures salt content, pH and the organic matter of 6 plant pits respectively
Content: measurement method are as follows: measure in soil improvement for these three projects, be 2017 3 in soil improvement latter year
The moon measures again for these three projects, and the results are shown in Table 1:
Table 1 administers front and back measurement result
Alkalization of soils degree can be reduced by the modifying agent that table 1 can obtain soil of the present invention of planting trees for beach saline-alkali, had
Effect improves the pH of soil, increases the content of soil with organic matter, achievees the purpose that improve salt-soda soil.
The survival rate of 2017.03 parts of three kinds of saplings is detected, as shown in table 2:
The survival rate of 2 three kinds of saplings of table
| Tree species | Plant number in 2016 | Survival number in 2017 | Survival rate |
| Metasequoia | 30 | 23 | 77% |
| Middle mountain China fir | 30 | 21 | 70% |
| Zelkova schneideriana | 30 | 25 | 83% |
As can be seen from Table 2: after being improved using soil of the modifying agent of the present invention to plantation trees, effectively
The survival rate for improving trees cannot plant trees from pervious, and the survival rate for planting trees is zero, be increased to plantation metasequoia
Survival rate is 77%: the survival rate of mountain China fir is 70% in plantation, and the survival rate for planting zelkova schneideriana is 83%, substantially increases kind of a tree planting
The survival rate of wood.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its details, it is all that there is technical solution identical or similar to the present application,
It is within the scope of the present invention.
Claims (10)
1. a kind of modifying agent for soil of for beach saline-alkali planting trees, which is characterized in that the soil of planting trees for beach saline-alkali
The modifying agent of earth includes the raw material of following weight parts: 30-36 parts of blocking agent, 0.01-0.03 parts of acid regulator, organic fertilizer
7-10 parts, 0.2-0.8 parts of sedimentation agent and 0.01-0.03 parts of microbial bacterial agent.
2. the modifying agent for soil of planting trees according to claim 1 for beach saline-alkali, which is characterized in that described to be directed to beach
The modifying agent of salt-soda soil tree planting soil includes the raw material of following weight parts: 33 parts of blocking agent, 0.02 part of acid regulator, organic fertilizer
Expect 8.6 parts, 0.5 part of sedimentation agent, 0.02 part of microbial bacterial agent.
3. the modifying agent of soil according to claim 1 or claim 2 of planting trees for beach saline-alkali, which is characterized in that the blocking
Agent is made of inorganic nano material and filler；The weight ratio of the inorganic nano material and filler is 15:18；The inorganic nano
Material is flyash；The filler is zeolite powder.
4. the modifying agent of soil according to claim 1 or claim 2 of planting trees for beach saline-alkali, which is characterized in that the acidity
Regulator is zinc sulfate；The sedimentation agent is ferrous sulfate；The organic fertilizer is by humic acid, yellow humic acid and calcium superphosphate group
At；Humic acid, yellow humic acid, calcium superphosphate weight ratio be 8:0.2:0.4.
5. the modifying agent of soil according to claim 1 or claim 2 of planting trees for beach saline-alkali, which is characterized in that micro- life
The microorganism contained in object microbial inoculum includes Natrinema altunense sp and bacillus.
6. the modifying agent for soil of planting trees according to claim 5 for beach saline-alkali, which is characterized in that the extreme halotolerant
Bacterium is Aspergillus terreus bacterial strain, and the bacillus is bacillus licheniformis and bacillus laterosporus.
7. a kind of modifying agent for soil of for beach saline-alkali planting trees according to claim 1, which is characterized in that need conditioned soil
The weight ratio of earth and the modifying agent is 1:3-3:1.
8. a kind of preparation method of the modifying agent for soil of for beach saline-alkali planting trees, feature described in one of claim 1-7
It is, comprising the following steps:
(1) it is weighed according to the parts by weight of each component spare；
(2) all blocking agents spare in step (1) are mixed, acid regulator and organic fertilizer is added after mixing
Material is uniformly mixed and reacts to form mixed material；
(3) sedimentation agent is added in the mixed material obtained to step (2), keeps room temperature reaction 3.5-4.0 hours, compounding
It is granulated, obtains granule；
(4) microbial bacterial agent is added in the granule that step (3) obtains, is uniformly mixed, obtained described for beach
The modifying agent of salt-soda soil tree planting soil.
9. a kind of preparation method of the modifying agent for soil of for beach saline-alkali planting trees, feature exist according to claim 8
In, in step (1), by acid regulator and organic fertilizer under conditions of whipping temp is 25-30 DEG C, stirring 40-60min
It is mixed evenly；In step (2), reaction temperature is 25-30 DEG C, reaction time 3-5h.
10. a kind of preparation method of the modifying agent for soil of for beach saline-alkali planting trees, feature exist according to claim 8
In, the microbial bacterial agent the preparation method comprises the following steps: preparing culture medium, adjustings pH is 7.0-8.0, microbe inoculation, culture 5-7
Microbial bacterial agent is formed after it.
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