CN106748531A - Alkaline land modifying agent and saline and alkali land improvement method based on spent bleaching clay and plant ash - Google Patents
Alkaline land modifying agent and saline and alkali land improvement method based on spent bleaching clay and plant ash Download PDFInfo
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- CN106748531A CN106748531A CN201710041903.8A CN201710041903A CN106748531A CN 106748531 A CN106748531 A CN 106748531A CN 201710041903 A CN201710041903 A CN 201710041903A CN 106748531 A CN106748531 A CN 106748531A
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- bleaching clay
- spent bleaching
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- plant ash
- alkaline land
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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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- 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
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
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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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- Organic Chemistry (AREA)
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Abstract
The invention provides a kind of alkaline land modifying agent and modification method based on spent bleaching clay and plant ash, the composition of raw materials of modifying agent includes spent bleaching clay, complex micro organism fungicide, humic acid, plant ash and binding agent, wherein complex micro organism fungicide are that bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, bacillusmusilaginosiengineering are 1 by nutrient solution volume ratio:1.2‑1.6:0.5‑0.7:1.2‑1.5:The mixtures of 0.6 0.9 compositions, the mass percent of complex micro organism fungicide, spent bleaching clay in composition of raw materials is respectively 0.5% 2% and 35% 80%.Alkaline land improving can be effectively realized using modifying agent of the present invention and with reference to modification method of the present invention, the improvement requirement in salt-soda soil is fundamentally solved, while low cost of the present invention, is capable of achieving resource reutilization, environmental pollution is reduced.
Description
Technical field
The present invention relates to a kind of soil conditioner, more particularly to a kind of alkaline land modifying agent.
Background technology
The salinization of soil is destroyed than larger to soil physico-chemical property, and pole is unfavorable for the growth of many crops, easily causes work
Thing is short of seedling or dead, so as to hinder the development of agricultural economy.Salt-soda soil is more due to salt content, and organic quality is few, and acid-base value is high, makes
Agron suffers leaching loss, and soil texture is destroyed, and is sticked when showing as wet, and hard when doing, native table often has white salinity accumulation,
Ventilation, it is permeable bad, serious meeting cause plant wilt, poisoning and rotten death.In addition, surface soil alkalinity is too big, soil is had influence on
The validity of the nutrients such as phosphorus, iron, manganese, boron, zinc in earth, easily causes a large amount of nitrogen, phosphorus, potassium essential element and iron, calcium, boron
Deng the shortage of trace element.According to statistics, Chinese saline-alkali soil area there are about more than 20 ten thousand square kilometres, constitute about China's territory total area
2.1%.Up to the present China about also have 80% or so saline-alkali soil not to be developed.It is increasingly tight in land resource
The today opened, the exploitation of large area saline-alkali wasteland and the preventing and treating of the salinization of soil have become influence China's economy and society
The major issue of sustainable development.
Existing conventional modification method has chemical modifying, physically improved, organic fertilizer improvement and biological modification etc..Soil
The kind of modifying agent has such as mineral substance, organic matter, artificial synthesized macromolecular compound, effective microorganism preparation, sulphur-bentonite
Deng.These modifying agents are generally common liquid body fertilizer material ﹑ farm manures or organic matter, and nutrient content is than relatively low, though can be supplemented for soil
Certain nutrient, but the improvement of soil physico-chemical property is have ignored, nutrient is difficult release, neither takes stopgap measures nor effects a permanent cure.Beneficial micro- life
Thing type of preparation is various, and the improved effect of most of microbial bacterial agents reported or produced is general, mainly microbial bacterial agent
Be difficult to survive and breed under alkaline land soil environment and played so as to limit its effect, although some microbial bacterial agent effects compared with
It is good, but it is expensive.
CN106278705A discloses a kind of alkaline land improving fertilizer special for organic and its preparation method and application, organic fertilizer by
Following components in percentage by weight is constituted：Edible oil and fat decolouring spent bleaching clay 90%~92%, middle micro- 1%~6%, it is saline and alkaline
Ground improved materials 2%~9%；Middle trace element is consisted of the following components in percentage by weight：Potassium sulfate 35~65%, ammonium sulfate
30~60%, zinc sulfate 1~4%, borax 0.5~2%；Alkaline land improving material is consisted of the following components in percentage by weight：
Desulfurization gypsum powder 70~100%, sofril 0~30%.The preparation method of organic fertilizer is：By edible oil and fat decolourize spent bleaching clay, in
, according to described percentage by weight mixing and stirring, the pH of dilution is passed through in then addition for trace element and alkaline land improving material
The acid conditioner of value, is uniformly mixed, and the pH value for adjusting mixture is 3~4, obtains alkaline land improving fertilizer special for organic, pH value
Acid conditioner is consisted of the following components in percentage by weight：Gustatory production wastewater 60~80%, steel and iron industry H2SO4 pickling are given up
Liquid 10~20%, steel and iron industry HCL pickle liquors 10~20%, the consumption of pH value acidity conditioner is the 5- of total weight of the mixture
20%.The organic fertilizer of the patent uses edible oil and fat decolouring spent bleaching clay in alkaline land improving first, but it is not to edible
The content of grease is illustrated in grease-decolor spent bleaching clay.Meanwhile, it uses steel and iron industry hydrochloric acid and sulphur pickle liquor regulation pH,
Because Cr is contained in iron and steel pickling waste liquid the inside, this can cause substantial amounts of cr to enter soil, cause the secondary pollution of soil, and past
Hydrochloric acid and sulfuric acid waste are added in spent bleaching clay, the microorganism in spent bleaching clay are all killed, destroy the environment of the growth of microorganism,
Unnecessary grease in spent bleaching clay can not be decomposed by the microorganisms, while the nutrients that plant easily absorbs can not be converted it into
Matter, the macronutrient in spent bleaching clay can not be absorbed and used by plants.Additionally, spent bleaching clay addition is up to more than 90%, and
, without consumption, containing substantial amounts of nutrient, single fertilization is excessive, can cause the excessive growth of plant, hinders flower_bud formation for grease
With bloom, be formulated be unfavorable on the whole that soil granular is formed in addition.For summary, although the organic fertilizer of the patent is using spent bleaching clay
It is raw material, but but spent bleaching clay is not utilized well, it is impossible to fundamentally solves the improvement requirement in salt-soda soil.
CN103320137B discloses a kind of composite microbiological bacteriocin saline-alkali soil improver, and described modifying agent includes micro- life
Thing, organic liquor and matrix.Described microorganism includes bacillus subtilis (Bacillussubtilis) and bacillus megaterium
(Bacillusmegaterium), the ratio of weight and number of described bacillus subtilis and bacillus megaterium is：Withered grass gemma
Bacillus 60~80；Bacillus megaterium 20~40, the bacillus subtilis is that the bacillus subtilis is bacillus subtilis
Bacterium CGMCC7296, bacillus subtilis CGMCC7297, the mixture of bacillus subtilis CGMCC7298；The huge gemma
Bacillus is CGMCC 7337.Described organic liquor includes the protease that described microbial bacterial agent fermentation is produced, lipase, α-
Amylase, amino acid.Described matrix includes chicken manure or cow dung, lignite, ground phosphate rock, medical stone.Described chicken manure or cow dung pass through
Cross 200~400 DEG C of high-temperature sterilizations；Described lignite is containing 20% humic acid；The ground phosphate rock, medical stone are more than 300 mesh.
The patent formulation is complicated, production inconvenience, with the addition of the nutriment that a large amount of growth of microorganism need, relatively costly, and salt-soda soil
Hardened environment under, growth of microorganism and breeding are limited, and regulation effect is not good.
The content of the invention
An object of the present invention is to provide a kind of improved alkaline land modifying agent based on spent bleaching clay and plant ash, and this changes
Good dose can effectively realize alkaline land improving, the improvement requirement in salt-soda soil fundamentally be solved, while low cost of the present invention.
The present invention also provides a kind of modification method in salt-soda soil simultaneously, and the method is easy to operate and can effectively realize salt-soda soil
Improvement.
To achieve the above object, a kind of technical scheme that the present invention takes is as follows for the present invention：
A kind of alkaline land modifying agent based on spent bleaching clay and plant ash, its composition of raw materials includes spent bleaching clay, complex microorganism
Microbial inoculum, humic acid, plant ash and binding agent, wherein complex micro organism fungicide are bacillus subtilis, bacillus licheniformis, side
Spore bacillus, Streptomyces jingyangensis, bacillusmusilaginosiengineering are 1 by nutrient solution volume ratio:1.2-1.6:0.5-0.7:1.2-
1.5:The mixture of 0.6-0.9 compositions, the mass percent difference of the complex micro organism fungicide, spent bleaching clay in composition of raw materials
It is 0.5%-2% and 35%-80%.
Preferably, complex micro organism fungicide is by bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Jingyang chain
Mould, bacillusmusilaginosiengineering nutrient solution are 1 by nutrient solution volume ratio:1.4-1.5:0.5-0.6:1.2-1.3:0.8-0.9 groups
Into mixture.Most preferably, bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, gel-shaped
The volume ratio of bacillus nutrient solution is 1:1.5:0.6:1.3:0.8.
According to the present invention, the spent bleaching clay is useless white grease-decolor treatment.In oil and fat refining process, typically add atlapulgite
Decolourized, the oil that the carclazyte being separated after grease-decolor treatment contains 20-30%.Contain 20-30%'s for these
The carclazyte of oil, some producers can carry out secondary deep squeezing, obtain the oil-containing spent bleaching clay of miscella and oil-containing 5-8%.The present invention
Can be using the spent bleaching clay of these spent bleaching clays or oil-containing 5-8% containing 20-30% oil.However, as preferred scheme of the invention,
It is preferred that it is the spent bleaching clay of 12wt%-15wt% to use oil content, on the one hand, show by inventor's lot of experiments, oil-containing
Rate provides good growing environment for the breeding that the spent bleaching clay of 10wt%-18wt% can be good at described complex microorganism,
Mixed with microorganism with the spent bleaching clay that oil content is 5-8%, not enough support the growth of long-term microorganism, it is necessary to additionally add battalion again
The normal growth that material just can guarantee that microorganism is supported, is such as mixed with microorganism with the spent bleaching clay without after-treatment, applied
To in alkaline land soil, microbes have little time to decompose, and cause substantial amounts of grease to be full of in soil, can so cause substantial amounts of
Air can not come in, and cause microorganism and be unable to normal growth.On the other hand, inventor is had found by by containing after decolouring
The spent bleaching clay of 20-30% can obtain the spent bleaching clay that oil content is 12-15% by normal temperature physical squeezing.It is therefore especially preferred that 12-
15% spent bleaching clay is used as raw material of the invention, it is possible to achieve minimization of cost is (in oil and fat refining process, usually using oil weight 2-
5% carclazyte is decolourized, by the general grease for being adsorbed with 20-50% in the spent bleaching clay after decolouring, then again to decolouring after
Spent bleaching clay carry out after-treatment, reduce the content of the inside grease, the handling process of existing market mainly has solvent extraction, height
The treated spent bleaching clay of warm physical squeezing method, wherein solvent extraction, oil content inside it than relatively low, substantially grease all by
Extract, but using and wasting for substantial amounts of solvent can be caused, simultaneously because using a large amount of solvents, increasing substantial amounts of being processed into
This, causes treatment spent bleaching clay economic benefit not high；Spent bleaching clay is processed by high-temperature physics milling process, the oil content inside it is general
In 5-8% or so, this method needs to use heated by natural gas, can also increase processing cost, can be big using normal temperature physical squeezing
Width reduces cost) while obtain optimal effect.
Further, binding agent of the present invention is preferably 1,3 pairs of methylolureas, xanthans, polyvinyl alcohol and ureaformaldehydes
In one or more of combination.It is further preferred that the binding agent is the combination of 1,3 pairs of methylolureas and xanthans or is
The combination of polyvinyl alcohol and ureaformaldehyde.
Further, the mass percent of the humic acid, plant ash and binding agent in the composition of raw materials is respectively
5-20%, 5-20% and 9-35%.
One of the invention specific and preferred aspect, the composition of raw materials of the modifying agent is spent bleaching clay 35-40%, rotten
Grow sour 15-20%, complex micro organism fungicide 0.5-1%, plant ash 15-20%, 1,3 couple of methylolurea 1-5%, xanthans 14-
33.5%.The characteristics of formula is：It is good slow-release fertilizer that 1,3 pair of methylolurea and xanthans are engaged, can for plant and
The growth of microorganism provides long-term nutriment, while xanthans can promote structure in the group of soil to be formed, and this two
Plant material and be decomposed by the microorganisms the nutriment for changing into plant growth, do not result in the secondary pollution of soil；Plant ash is plant
The growth of thing provides substantial amounts of potassium element, while plant ash can also promote the crumb structure of soil to be formed.
Another specific and preferred aspect of the invention, the composition of raw materials of the modifying agent is spent bleaching clay 68-78.5%,
Humic acid 5-10%, complex micro organism fungicide 0.5-1%, ureaformaldehyde 5-7%, plant ash 5-10%, polyvinyl alcohol 4-6%.Should
The characteristics of formula is：It is good slow-release fertilizer that ureaformaldehyde urea and polyvinyl alcohol are engaged, and can be the growth of plant and microorganism
Long-term nutriment is provided, while xanthans can promote structure in the group of soil to be formed, and both materials are by micro- life
Thing decomposition and inversion does not result in the secondary pollution of soil into the nutriment of plant growth；Plant ash is provided for the growth of plant
Substantial amounts of potassium element, while plant ash can also promote the crumb structure of soil to be formed.
According to the present invention, each component for constituting above-mentioned raw materials formula is individually packed.
The present invention also provides a kind of saline and alkali land improvement method, and it uses the present invention above-mentioned based on spent bleaching clay and plant ash
Alkaline land modifying agent, and comprise the following steps：
(1) complex micro organism fungicide agent is added in spent bleaching clay, controls temperature to be kept for 3-5 weeks for 28-35 DEG C, make micro- life
Thing is bred, and obtains modifying agent component A；
(2) it is uniformly sprinkling upon saline and alkaline the earth's surface as modifying agent B component for humic acid and plant ash, is then carried out
Water is turned over and spread, is kept for 5-15 days；
(3) modifying agent component A is uniformly sprinkling upon the saline and alkaline the earth's surface processed by step (2), and is turned over, make to mix
Close uniform, kept for 5-10 days；
(4) binding agent is uniformly sprinkling upon the saline and alkaline the earth's surface processed by step (3), and is turned over, keep 5-10
My god.
The preparation method of the complex microbial inoculum is：By bacillus subtilis, bacillus licheniformis, side spore gemma bar
Bacterium, Streptomyces jingyangensis, the bacterium powder of bacillusmusilaginosiengineering are made respective nutrient solution after being cultivated respectively through activation and domestication, so
Nutrient solution is well mixed afterwards is obtained final product.Bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, jelly
The bacterium powder of sample bacillus has learned that, can activate and domestication and culture method is according to simultaneously known journey by commercially available
Sequence or the mode of producer's suggestion are carried out.
Preferably, in every gram of modifying agent component A, bacillus subtilis, bacillus licheniformis, bacillus laterosporus,
Streptomyces jingyangensis, the viable count of bacillusmusilaginosiengineering are respectively greater than 3.5x108、2.8x108、3.5x107、3.0x108With
2.0x108。
Further, in step (1), during holding, 3-4 ventilation is stirred weekly.And preferably kept for 3 weeks.
Further, in step (2), ploughed depth is 18-25cm, preferably from about 20cm.Water is spread so that soil layer of turning over is wet
Profit.Preferably, kept for 5-10 days in the step.
Further, in step (3), ploughed depth is 18-25cm, preferably from about 20cm.Preferably, kept in the step
5-7 days.
Compared with prior art, beneficial effects of the present invention are as follows：
(1) spent bleaching clay can be neutralized in acidity with the salt-soda soil in alkalescence, coordinate the use of microorganism, can be effective
Reduce the pH value of alkaline land soil, at the same spent bleaching clay can be microorganism in the soil provide nutrient required for breeding and
Do not result in excessive fertilization and cause plant excessive growth simultaneously.
(2) present invention pass through experimental studies have found that, by bacillus subtilis, bacillus licheniformis, bacillus laterosporus, river rising in Ningxia and flowing into central Shaanxi
After positive streptomycete, bacillusmusilaginosiengineering mix in specific proportions, can be reached in the environment in salt-soda soil in the presence of spent bleaching clay
To symplastic growth and breeding, if lacking jelly bacillus, bacillus licheniformis, bacillus laterosporus and Jingyang in microbial inoculum
Streptomycete cannot survive discovery substantially, if removing bacillus licheniformis, be had when mix bacterium agent is mixed substantial amounts of miscellaneous
Bacterium produces, so as to suppress the growth of beneficial bacterium in microbial inoculum, causes the quality of microbial inoculum between a batch unstable, causes to saline and alkaline
Ground repairing effect does not reach requirement, the compounding of this several microbial inoculum, it is possible to increase its collaboration resistance alkali ability, can be in salt-soda soil soil
Fermented well in earth, support the growth in saline and alkaline aerial plant.
(3) humic acid is added in inventive formulation, on the one hand can reduces the PH of alkaline land soil, on the other hand may be used
To improve living environment of the microorganism in salt-soda soil, while substantial amounts of growth elements can also be provided for the growth of plant.Formula
In plant ash can be with plant ash as plant growth substantial amounts of potassium element is provided, while plant ash can also promote the group of soil
Burl is configured to；Specific binding agent is added in formula, spent bleaching clay, plant ash etc. can be promoted with the quick formation of salt-soda soil reaction
Spherulitic texture, the quick sodium ion for reducing soil, whole mutually coordinated cooperations of component can effectively improve salt-soda soil.
(4) whole raw materials used in the present invention or the direct nutrient or last being converted into of providing can be plant
Thing growth improves the product of nutrient, does not result in the secondary pollution of soil, and it is sharp again wherein to realize the resource of spent bleaching clay
With, contribute to reduce environmental pollution.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail, and unreceipted condition is in embodiment
The conventional condition in this area.When the consumption or dosage or content of material is addressed, unless stated otherwise, weight is referred both to.Below
The complex micro organism fungicide used in embodiment, preparation method is as follows：Microbial bacteria by commercially available, and using it is preceding according to
Known program or producer suggestion mode enter line activating and domestication cultivate, then by bacillus subtilis, bacillus licheniformis,
Bacillus laterosporus, Streptomyces jingyangensis, bacillusmusilaginosiengineering nutrient solution are according to volume ratio 1:1.5:0.6:1.3:0.8 compounding exists
Together, control temperature is at 28-32 DEG C.
Embodiment 1
This example provides a kind of alkaline land modifying agent, and by weight percentage, its composition of raw materials includes spent bleaching clay 35%, is combined
Microbial bacterial agent 1%, humic acid 18%, 18%, 1,3 pairs of methylolureas 3% of plant ash, xanthans 25%, wherein spent bleaching clay contain
Oil cut rate is for about 13-14%.Each component independent packaging.
Embodiment 2
This example provides a kind of alkaline land modifying agent, and by weight percentage, its composition of raw materials includes spent bleaching clay 40%, is combined
Microbial bacterial agent 1%, humic acid 16%, 20%, 1,3 pairs of methylolureas 2% of plant ash, xanthans 21%, wherein spent bleaching clay contain
Oil cut rate is for about 13-14%.Each component independent packaging.
Embodiment 3
This example provides a kind of alkaline land modifying agent, and by weight percentage, its composition of raw materials includes spent bleaching clay 35%, is combined
Microbial bacterial agent 1%, humic acid 15%, 15%, 1,3 pairs of methylolureas 2% of plant ash, xanthans 32%, wherein spent bleaching clay contain
Oil cut rate is for about 13-14%.Each component independent packaging.
Embodiment 4
This example provides a kind of alkaline land modifying agent, its substantially with embodiment 1, unlike, wherein spent bleaching clay oil content is
About 6-8%.
Embodiment 5
This example provides a kind of alkaline land modifying agent, its substantially with embodiment 1, unlike, wherein spent bleaching clay oil content is
About 20-22%.
Comparative example 1
This example provides a kind of alkaline land modifying agent, its substantially with embodiment 1, unlike, wherein complex micro organism fungicide
It is bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis in proportion 1:1.5:0.6:1.3 mixing groups
Into.
Comparative example 2
This example provides a kind of alkaline land modifying agent, its substantially with embodiment 1, unlike, wherein complex micro organism fungicide
It is bacillus subtilis, bacillus laterosporus, Streptomyces jingyangensis, jelly bacillus in proportion 1:0.6:1.3:0.8 mixing group
Into.
Comparative example 3
This example provides a kind of alkaline land modifying agent, its substantially with embodiment 1, unlike, be free of xanthans in its formula,
1,3 pairs of methylolurea contents are 28%.
Embodiment 6
This example provides a kind of alkaline land modifying agent, and by weight percentage, its composition of raw materials includes spent bleaching clay 70%, humic
Acid 7%, complex micro organism fungicide 1%, ureaformaldehyde 6%, plant ash 10%, polyvinyl alcohol 6%, wherein spent bleaching clay oil content is for about
14-15%.
Embodiment 7
This example provides a kind of alkaline land modifying agent, and by weight percentage, its composition of raw materials includes spent bleaching clay 75%, humic
Acid 9%, complex micro organism fungicide 1%, ureaformaldehyde 5%, plant ash 5%, polyvinyl alcohol 5%, wherein spent bleaching clay oil content is for about
14-15%.
Embodiment 8
This example provides a kind of alkaline land modifying agent, and by weight percentage, its composition of raw materials includes spent bleaching clay 75%, humic
Acid 9%, complex micro organism fungicide 1%, ureaformaldehyde 5%, plant ash 10%, wherein spent bleaching clay oil content are for about 14-15%.
Embodiment 9
Alkaline land improving experiment is carried out using the modifying agent of embodiment 1-8 and comparative example 1-3, it is specific as follows：
1. salt-soda soil situation is tested：Lan Yu forts village of Datong City, Shanxi Province Tianzhen County San Shipu townshiies moderate salt affected soil, its pH
Salt-soda soil is divided into 12 homalographic regions, 0.05 mu of each region by value 8.5 or so.
2. for studying thing：Corn, in late April, 2016 sowing, late August harvests.
3. method for testing is supplied：First salt-soda soil is improved, then long-term cropping on the soil after improvement, wherein improvement side
Method is as follows：Complex micro organism fungicide agent in each formula is added in spent bleaching clay, control temperature is for about 30-32 DEG C and is kept for 3 weeks,
Modifying agent component A is obtained, wherein viable count is surveyed, as a result referring to table 1；Using the humic acid and plant ash in each formula as modifying agent
B component, it is uniformly sprinkling upon saline and alkaline the earth's surface, is then carried out turning over 20cm and is spread water (wetting), holding 7 days, then
Modifying agent component A is uniformly sprinkling upon saline and alkaline the earth's surface, and is turned over, make to be well mixed, kept for 7 days, in being finally formulated
Binding agent be uniformly sprinkling upon saline and alkaline the earth's surface, and carry out the 20cm that turns over, kept for 7 days, the betterment of land is to complete.Detection soil is each
Item index, as a result referring to table 2.
Table 1
Table 2
General planting and fertilizing management further are carried out according to conventional crop to the soil after the completion of improvement, is broadcast in corn
Before kind, with reference to site preparation, commercially available 15-25 kgs/acre of common organic fertilizer of disposably spreading manuer in holes notices that seed and fertilizer separate 5- during sowing
7 centimetres, in order to avoid burn seedlings, field management and water management are detected by regular job to the indices of crop, as a result referring to
Table 3.
Table 3
| Sequence number | Plant height (cm) | Spike length (cm) | Fringe is thick (cm) | Tassel row number (OK) | Effective fringe (grain) | Per mu yield (kg) |
| Blank soil | 240.7 | 19.36 | 3.89 | 9.36 | 1635 | 790 |
| Embodiment 1 | 270.5 | 24.56 | 5.86 | 16.78 | 3498 | 1580 |
| Embodiment 2 | 272.6 | 23.98 | 5.45 | 17.21 | 3469 | 1469 |
| Embodiment 3 | 269.8 | 23.56 | 5.98 | 16.87 | 3478 | 1502 |
| Embodiment 4 | 262.8 | 21.56 | 5.02 | 15.87 | 2998 | 1312 |
| Embodiment 5 | 263.9 | 20.45 | 4.96 | 15.31 | 2901 | 1282 |
| Comparative example 1 | 259.6 | 21.19 | 4.49 | 10.23 | 2004 | 906 |
| Comparative example 2 | 258.6 | 20.79 | 4.14 | 10.01 | 1968 | 856 |
| Comparative example 3 | 254.4 | 21.89 | 4.19 | 10.56 | 2103 | 965 |
| Embodiment 6 | 272.8 | 24.69 | 5.65 | 16.26 | 3468 | 1470 |
| Embodiment 7 | 271.4 | 23.45 | 5.62 | 17.01 | 3478 | 1498 |
| Embodiment 8 | 273.3 | 22.98 | 5.78 | 16.54 | 3498 | 1563 |
Above result of the test shows, successfully realizes changing salt-soda soil using the modifying agent and modification method of inventive formulation
Good, improved effect is notable.
Claims (10)
1. a kind of alkaline land modifying agent based on spent bleaching clay and plant ash, its composition of raw materials includes spent bleaching clay, it is characterised in that：Institute
The composition of raw materials for stating alkaline land modifying agent also includes complex micro organism fungicide, humic acid, plant ash and binding agent, and described answers
Conjunction microbial bacterial agent is bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, gel-shaped gemma bar
Bacterium is 1 by nutrient solution volume ratio:1.2-1.6:0.5-0.7:1.2-1.5:The mixture of 0.6-0.9 compositions, the composite microbial
The mass percent of thing microbial inoculum, the spent bleaching clay in the composition of raw materials is respectively 0.5%-2% and 35%-80%.
2. the alkaline land modifying agent based on spent bleaching clay and plant ash according to claim 1, it is characterised in that：It is described compound
Microbial bacterial agent is by bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, bacillusmusilaginosiengineering
Nutrient solution is 1 by nutrient solution volume ratio:1.4-1.5:0.5-0.6:1.2-1.3:The mixture of 0.8-0.9 compositions.
3. the alkaline land modifying agent based on spent bleaching clay and plant ash according to claim 1, it is characterised in that：It is described useless white
Soil processes spent bleaching clay for grease-decolor, and its oil content is 12wt%-15wt%.
4. the alkaline land modifying agent based on spent bleaching clay and plant ash according to claim 1, it is characterised in that：The bonding
Agent is the combination of one or more in 1,3 pairs of methylolureas, xanthans, polyvinyl alcohol and ureaformaldehydes.
5. the alkaline land modifying agent based on spent bleaching clay and plant ash according to claim 4, it is characterised in that：The bonding
Agent is the combination or the combination for polyvinyl alcohol and ureaformaldehyde of 1,3 pairs of methylolureas and xanthans.
6. the alkaline land modifying agent based on spent bleaching clay and plant ash according to claim 1, it is characterised in that：The humic
Acid, the mass percent of plant ash and binding agent in the composition of raw materials are respectively 5-20%, 5-20% and 9-35%.
7. the alkaline land modifying agent based on spent bleaching clay and plant ash according to any one of claims 1 to 3 claim,
It is characterized in that：The composition of raw materials of the modifying agent is spent bleaching clay 35-40%, humic acid 15-20%, complex micro organism fungicide
0.5-1%, plant ash 15-20%, 1,3 couple of methylolurea 1-5%, xanthans 14-33.5%.
8. the alkaline land modifying agent based on spent bleaching clay and plant ash according to any one of claims 1 to 3 claim,
It is characterized in that：The composition of raw materials of the modifying agent is spent bleaching clay 68-78.5%, humic acid 5-10%, complex micro organism fungicide
0.5-1%, ureaformaldehyde 5-7%, plant ash 5-10%, polyvinyl alcohol 4-6%.
9. a kind of saline and alkali land improvement method, it is characterised in that：The method is using such as any one of claim 1 to 8 claim
The described alkaline land modifying agent based on spent bleaching clay and plant ash, and comprise the following steps：
(1) complex micro organism fungicide agent is added in spent bleaching clay, controls temperature to be kept for 3-5 weeks for 28-35 DEG C, make microorganism numerous
Grow, obtain modifying agent component A；
(2) it is uniformly sprinkling upon saline and alkaline the earth's surface as modifying agent B component for humic acid and plant ash, is then turned over
With spread water, kept for 5-15 days；
(3) modifying agent component A is uniformly sprinkling upon the saline and alkaline the earth's surface processed by step (2), and is turned over, make mixing equal
It is even, kept for 5-10 days；
(4) binding agent is uniformly sprinkling upon the saline and alkaline the earth's surface processed by step (3), and is turned over, kept for 5-10 days.
10. saline and alkali land improvement method according to claim 9, it is characterised in that：It is withered in every gram of modifying agent component A
Careless bacillus, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, the viable count of bacillusmusilaginosiengineering distinguish big
In 3.5x108、2.8x108、3.5x107、3.0x108And 2.0x108。
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