CN104893741A - Soil conditioner as well as preparation method and application of soil conditioner - Google Patents
Soil conditioner as well as preparation method and application of soil conditioner Download PDFInfo
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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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
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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
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Abstract
The invention discloses a mildly-saline-alkali soil conditioner as well as a preparation method and application of the mildly-saline-alkali soil conditioner, wherein the soil conditioner comprises the following components in parts by weight: 60-70 parts of calcium salt, 15-20 parts of biomass cokes, 5-8 parts of a biomass water solution and 5-10 parts of an organic fertilizer. The soil conditioner can be used for rapidly and effectively solving various problems such as high soil alkalization degree, low fertility, high soil pH value and soil agglomeration, and is low in price and low in heavy metal content.
Description
Technical field
The present invention relates to agriculture field, particularly, relate to soil improvement amendment and its preparation method and application, more specifically, relate to soil improvement amendment, prepare soil improvement amendment method and improve the method for slight salinized soil.
Background technology
China is distributed with large stretch of saltings, and the degree of salinization expands.Saline Land not only makes a large amount of underproduction of the agricultural of China, causes very large loss, being on the rise also due to salinization and alkalization, makes tract become useless ground gradually.Transformation salinity ground also improves the agriculture production amount of Saline, is one of vital task of China's agricultural development.
China's alkaline land improving with a long history, developed multiple modification method and technology, the agronomy related to or engineering techniques mainly can be divided into: physically improved (as prepartion of land, deep ploughing is suned the earth which has been ploughed up, raised fields improves the soil), water conservancy improvement (as fill with row wash grind, hidden pipe salt discharge etc.), chemical modifying (as gypsuming, phosphogypsum, humic acid etc.) and biological modification (as salt-tolerant plant plantation, microorganism improvement etc.).These improving technologies all have certain effect, also there is certain deficiency.As the fresh water desalinization of soil by flooding or leaching can reduce soil salt content, but remarkable to the effect of basicity reduction, and water loss is large, easily causes plant to grow required mineral element and runs off.Biological modification universality is poor, and take effect slow, cost is relatively high.
The research and development of soil improvement agent are the cores of chemical modifying technology.Chinese patent application CN101624523 disclosed " a kind of saline soil ", form than by Tai-Ace S 150, ferrous ammonium sulphate and magnesium sulfate mixed preparing by Different Weight, make this modifying agent and need a large amount of chemical raw materials, instead of utilize trade waste, cost is higher.Chinese patent application CN1377936A disclosed " utilizing waste gypsum plate to produce method of saline-alkali soil conditioner and products thereof and application ", utilize the exchangeable sodium in the calcium sulfate displacement soil in gypsum, but need waste gypsum plate to carry out to process fragmentation and just can be used for improveing soil.If modifying agent granularity is large after broken, be then unfavorable for that ion exchange is reacted, improved effect is poor; Very little to modifying agent granularity after fragmentation, then want the energy of at substantial, the cost of soil improvement height cannot be born to peasant.Patent CN201110124738.5 disclosed " improveing the composition of salt affected soil with power plant's waste and peat, weathered coal resource " utilizes the power plant such as desulfurated plaster, flyash waste and weathered coal resource mixture as modifying agent, because the heavy metal content in flyash is higher, the heavy metal in soil after improvement and hazardous trace elements can be caused to exceed the permissible value of national standard.Some patents, as CN03111936.0, CN200910117619.X etc., relate to modifying agent component formula complicated.
Therefore, current soil improvement agent awaits further research.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, it is good that one object of the present invention is to propose a kind of biological modification universality, instant effect, cheap, and the soil improvement agent that heavy metal content is low, this soil improvement agent is suitable for the improvement of salinized soil, is particularly useful for the improvement of slight salinized soil.
According to an aspect of the present invention, the invention provides a kind of soil improvement amendment.According to embodiments of the invention, this soil improvement amendment comprises: the calcium salt of 60-70 weight part, the biomass coke of 15-20 weight part, the biomass water solution of 5-8 weight part and the organic chemical fertilizer of 5-10 weight part.
According to embodiments of the invention, soil improvement amendment of the present invention fast and effeciently can improve that the alkalization degree of soil is high, fertility is low, soil pH value is high and the various problems such as aggravation of soil.And this soil improvement amendment is cheap, and organic content is high, and heavy metal content is low.
According to a further aspect in the invention, the invention provides a kind of method preparing soil improvement amendment.According to embodiments of the invention, the method comprises: mixed with calcium salt by biomass organism, to obtain the first mixture; Heat-treated by described first mixture, to obtain thermal treatment solid product and thermal treatment liquid product, wherein, described thermal treatment solid product comprises: biomass coke and calcium salt; Described thermal treatment liquid product is carried out stratification and water phase separated, and described aqueous phase forms described biomass water solution; In described thermal treatment solid product, add organic chemical fertilizer, carry out the first stir process, to obtain the second mixture; And described biomass water solution is added in described second mixture, carry out the second stir process, to obtain described soil improvement amendment.
According to embodiments of the invention, utilize method of the present invention, directly heat-treat by calcium salt with after mixing with biomass organism, without the need to carrying out broken pre-treatment to biomass organism, simplifying production technique, the productive rate of coke can also be improved, and, calcium salt adds Thermal release water, and after condensation is reclaimed, the productive rate collecting the thermal treatment liquid product obtained also improves.Meanwhile, method production technique of the present invention is simple, and production cost is low, and the organic content of the soil improvement amendment prepared is high, and heavy metal content is low, can strengthen soil fertility quickly and efficiently.
In accordance with a further aspect of the present invention, the invention provides a kind of method improveing slight salinized soil.According to embodiments of the invention, the method uses aforementioned soil improvement amendment to described slight salinized soil.
According to embodiments of the invention, utilize soil improvement amendment of the present invention fast and effeciently to improve slight salinized soil, this soil improvement amendment effectively can reduce the basicity of soil, strengthens the fertility of soil, reduce the pH value of soil, and improve the crumb structure of soil.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schema preparing soil improvement amendment according to an embodiment of the invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Soil improvement amendment
According to an aspect of the present invention, the invention provides a kind of soil improvement amendment.According to embodiments of the invention, this soil improvement amendment comprises: the calcium salt of 60-70 weight part, the biomass coke of 15-20 weight part, the biomass water solution of 5-8 weight part and the organic chemical fertilizer of 5-10 weight part.
According to embodiments of the invention, the calcium ion (Ca in calcium salt of the present invention
2+) ion-exchange can be carried out with the replaceability sodium ion on soil colloid, sodium ion is entered with oozing irrigation water or draining via discharge channel after the soil solution from soil colloid, thus, reduce the basicity of soil, improve the crumb structure of soil.According to embodiments of the invention, biomass coke of the present invention, it is the rich carbon polymer of porous, slightly in alkalescence, can adsorb and the salt ion in fixing soil and moisture, keep soil humidity, for soil microorganisms breeding provides place, block capillary channel to a certain extent simultaneously, reduce soil particle salt, improve Soil structure and saline-alkali soil particle agglomeration characteristic.According to embodiments of the invention, containing a large amount of acetic acid, propionic acid, acetone etc. in biomass water solution, the organic content of soil can be improved, in conjunction with organic fungi-manure, increase soil fertility, for plant growth provides nutrition, and the pH value of alkaline earth can be reduced, improve the alkalization situation of soil.Thus, soil improvement amendment of the present invention can be improved for the various problems of soil, and this soil improvement agent effectively can reduce the basicity of soil, strengthens the fertility of soil, reduces the pH value of soil, improves the crumb structure of soil.And this soil improvement amendment is cheap, and organic content is high, and heavy metal content is low, soil fertility can be strengthened quickly and efficiently.
According to a particular embodiment of the invention, biomass coke and biomass water solution are obtained by following steps: mixed with calcium salt by biomass organism, obtain the first mixture; Heat-treated by this first mixture, obtain thermal treatment solid product and thermal treatment liquid product, wherein, thermal treatment solid product comprises: biomass coke and calcium salt; Thermal treatment liquid product is carried out stratification and water phase separated, and this aqueous phase forms biomass water solution.Contriver is surprised to find, directly heat-treat by calcium salt with after mixing with biomass organism, the thermal treatment of biomass organism generates the coke of small volume, thus, eliminate and broken pretreated process is carried out to biomass organism, simplify production technique, can also improve the productive rate of coke, and calcium salt adds Thermal release water, condensation is collected the biomass water solution yield obtained and is also improved after reclaiming.
Wherein, it should be noted that, calcium salt there will be dehydration in heat treatment process, in the present invention, calcium salt after dehydration and the calcium salt soil improvement amendment all used in the present invention without processed, on the composition of soil improvement amendment without impact, and on the improved effect of soil also without impact.
According to a particular embodiment of the invention, biomass organism is at least one being selected from sawdust, wood chip and agricultural crop straw, and wherein, agricultural crop straw can be the waste of the agriculture productions such as maize straw, wheat stalk, rice straw.Thus, sawdust, wood chip and agricultural crop straw etc. is utilized to produce the raw material of waste as soil improvement amendment, can to the utilization of waste material of producing, and the cost of soil improvement amendment is low.
According to some embodiments of the present invention, calcium salt is desulfurated plaster.Wherein, it should be noted that, desulfurated plaster is the by product of coal-burning power plant's limestone-gypsum method flue gas wet desulphurization process, effective constituent CaSO
42H
2the content of O in desulfurated plaster is 60-92%.Calcium ion (Ca in desulfurated plaster
2+) can exchange with the replaceability sodium ion on soil colloid, make sodium ion enter with oozing irrigation water or draining via discharge channel after the soil solution from soil colloid, reduce the basicity of soil, and improve the crumb structure of soil.
According to embodiments of the invention, the weight ratio of biomass organism and calcium salt is not particularly limited, can according to the problem resize ratio of soil, such as, soil alkalization problem serious, the ratio of calcium salt can be improved, the salt of soil is high, and aggravation of soil is serious, then can provide biomass organic ratio, preferably, the weight ratio of biomass organism and calcium salt is 0.4-1.1:1.Thus, the soil improvement amendment be mixed with in this ratio can effectively reduce alkalization of soils degree, improves Soil structure and soil particle reunion situation.
According to a particular embodiment of the invention, the particle diameter of calcium salt is 50 microns at the most.Thus, the contact area of calcium salt and soil is large, promotes that the replaceability sodium ion in calcium ion and soil carries out ion exchange reaction, good to the improved effect of soil.
According to a particular embodiment of the invention, thermal treatment for curing, destructive distillation or pyrolysis.Thus, the productive rate of the coke that thermal treatment obtains and thermal treatment liquid product is high, and thermal effectiveness is good.
According to a particular embodiment of the invention, thermal treatment is 280-500 DEG C in temperature, carries out under the condition of inert atmosphere, and wherein, inert atmosphere is flue gas or rare gas element.Thus, the product that thermal treatment obtains is not easily oxidized, and the productive rate of coke and thermal treatment liquid product is high, and thermal effectiveness is good.
According to a particular embodiment of the invention, the pH value of biomass water solution is less than 7, directly can reduce the pH value of alkaline earth.Further, biomass water solution can also contain a large amount of acetic acid, propionic acid, acetone etc., and the organic content of soil improvement amendment is high, in conjunction with organic fungi-manure, is conducive to increasing soil fertility, for plant growth provides nutrition.
According to some embodiments of the present invention, organic chemical fertilizer is beneficial flora fermentation chemical fertilizer, namely in commercially available organic chemical fertilizer, adds beneficial flora and ferments, the chemical fertilizer of acquisition.Thus, containing a large amount of beneficial flora tunning in this organic chemical fertilizer, the fertility of organic chemical fertilizer is high.
According to a particular embodiment of the invention, beneficial flora be selected from addicted to salt alkali bacillus, milk-acid bacteria, acetic bacteria, yeast and photosynthetic bacteria one of at least.Thus, the ferment effect of beneficial flora is good, and containing tunning useful in a large number in organic chemical fertilizer, the fertility of organic chemical fertilizer is high.
Prepare the method for soil improvement amendment
According to a further aspect in the invention, the invention provides a kind of method preparing soil improvement amendment.With reference to figure 1, the method preparing soil improvement amendment is described in detail.
S100: mixing
According to embodiments of the invention, biomass organism is mixed with calcium salt, obtain the first mixture.Thus, biomass organism and calcium salt are mixed, promote the carrying out of pyrolytic reaction, be conducive to provide the productive rate of coke and biomass water solution.
According to a particular embodiment of the invention, biomass organism is at least one being selected from sawdust, wood chip and agricultural crop straw, and wherein, agricultural crop straw can be the waste of the agriculture productions such as maize straw, wheat stalk, rice straw.Thus, utilize sawdust, wood chip and agricultural crop straw etc. to produce the raw material of waste as soil improvement amendment, can the refuse produced be utilized, and the cost of soil improvement amendment is low.
According to some embodiments of the present invention, calcium salt is desulfurated plaster.Wherein, it should be noted that, desulfurated plaster is the by product of coal-burning power plant's limestone-gypsum method flue gas wet desulphurization process, effective constituent CaSO
4the content of 2H2O in desulfurated plaster is 60-92%.Calcium ion (Ca in desulfurated plaster
2+) can exchange with the replaceability sodium ion on soil colloid, make sodium ion enter with oozing irrigation water or draining via discharge channel after the soil solution from soil colloid, reduce the basicity of soil, and improve the crumb structure situation of soil.
According to some embodiments of the present invention, the weight ratio of biomass organism and calcium salt is not particularly limited, can according to the problem resize ratio of soil, such as, soil alkalization problem serious, the ratio of calcium salt can be improved, the salt of soil is high, and aggravation of soil is serious, then can provide biomass organic ratio, preferably, the weight ratio of biomass organism and calcium salt is 0.4-1.1:1.Thus, the soil improvement amendment be mixed with in this ratio can effectively reduce alkalization of soils degree, improves Soil structure and soil particle reunion situation.
S200: thermal treatment
Heat-treated by first mixture, obtain thermal treatment solid product and thermal treatment liquid product, wherein, this thermal treatment solid product comprises: biomass coke and calcium salt.Contriver is surprised to find, heat-treated by first mixture, biomass organism generates the coke of small volume, thus, eliminate and broken pretreated process is carried out to biomass organism, simplify production technique, the productive rate of coke can also be improved, and, calcium salt adds Thermal release water, and after condensation is reclaimed, the productive rate collecting the thermal treatment liquid product obtained also improves.
Wherein, it should be noted that, calcium salt there will be dehydration in heat treatment process, in the present invention, calcium salt after dehydration and the calcium salt soil improvement amendment all used in the present invention without processed, on the composition of soil improvement amendment without impact, and on the improved effect of soil also without impact.
According to a particular embodiment of the invention, the particle diameter of calcium salt is 50 microns at the most.Thus, the contact area of calcium salt and soil is large, promotes that the replaceability sodium ion in calcium ion and soil carries out ion exchange reaction, good to the improved effect of soil.
According to a particular embodiment of the invention, thermal treatment for curing, destructive distillation or pyrolysis.Thus, the productive rate of the coke that thermal treatment obtains and biomass water solution is high, and thermal effectiveness is good.
According to a particular embodiment of the invention, thermal treatment is 280-500 DEG C in temperature, carries out under the condition of inert atmosphere, and wherein, inert atmosphere is flue gas or rare gas element.Thus, the product that thermal treatment obtains is not easily oxidized, and the productive rate of coke and biomass water solution is high, and thermal effectiveness is good.
S300: stratification
Thermal treatment liquid product is carried out stratification and water phase separated, and this aqueous phase forms biomass water solution.Thus, volatile products in heat treatment process form thermal treatment liquid product after condensation is reclaimed, this part thermal treatment liquid product can be formed two-layer after leaving standstill, one deck is water-fast tar, one deck is the aqueous phase containing a large amount of water soluble organic substance, and the aqueous phase that this one deck contains water soluble organic substance constitutes biomass water solution.Containing a large amount of acetic acid, propionic acid, acetone etc. in this biomass water solution, the organic content of soil can be improved, in conjunction with organic fungi-manure, increase soil fertility, for plant growth provides nutrition.
According to a particular embodiment of the invention, the pH value of biomass water solution is less than 7, in acid, directly can reduce the pH value of alkaline earth, improve the alkalization situation of soil.
S400: the first stir process
Add organic chemical fertilizer in heat treated solid product, carry out the first stir process, obtain the second mixture.Thus, containing a large amount of organism in organic chemical fertilizer, by adding organic chemical fertilizer, increase the fertility of soil improvement amendment.
According to some embodiments of the present invention, organic chemical fertilizer is beneficial flora fermentation chemical fertilizer.Thus, containing a large amount of beneficial flora tunning in this organic chemical fertilizer, the fertility of organic chemical fertilizer is high.
According to a particular embodiment of the invention, beneficial flora be selected from addicted to salt alkali bacillus, milk-acid bacteria, acetic bacteria, yeast and photosynthetic bacteria one of at least.Thus, the ferment effect of beneficial flora is good, and containing tunning useful in a large number in organic chemical fertilizer, the fertility of organic chemical fertilizer is high.
According to embodiments of the invention, the weight ratio of thermal treatment solid product and organic chemical fertilizer is not particularly limited, suitably can adjust according to soil to be improved, if salt ion content is high in soil, then can increase the ratio of thermal treatment solid product, if the fertility of soil is poor, then can increase the ratio of organic chemical fertilizer, preferably, the weight ratio of thermal treatment solid product and organic chemical fertilizer is 6-14:1.Thus, thus, the soil improvement amendment be mixed with in this ratio can effectively reduce the saltiness in soil, strengthens the fertility of soil.
S500: the second stir process
In the second mixture, add biomass water solution, carry out the second stir process, obtain soil improvement amendment.Because the add-on of biomass water solution is less, after stirring first, then biomass water solution is joined in the second mixture, can by biomass water solution and the mixing of the second mixture evenly.
According to a particular embodiment of the invention, the weight ratio of the second mixture and biomass water solution is 11-19:1.Thus, soil improvement amendment is good to the improved effect of soil, effectively can reduce the basicity of soil, strengthens the fertility of soil, reduces the pH value of soil, improves the crumb structure of soil.
Improve the method for slight salinized soil
In accordance with a further aspect of the present invention, the invention provides a kind of method improveing slight salinized soil.According to embodiments of the invention, the method uses aforementioned soil improvement amendment to slight salinized soil.
According to embodiments of the invention, soil improvement amendment of the present invention is utilized fast and effeciently to improve slight salinized soil, this soil improvement amendment effectively can reduce the basicity of soil, strengthen the fertility of soil, reduce the pH value of soil, and improve the crumb structure situation of soil.
According to some embodiments of the present invention, the amount of application of soil improvement amendment is 1500-2500kg/ mu.According to embodiments of the invention, lower than this amount of application, the add-on of soil improvement amendment is very few, calcium ion is not enough carries out replacement(metathesis)reaction with the sodium ion in soil colloid, also the pH value of soil cannot be made to adjust to rational level, and, to the improvement DeGrain of soil fertility.If measured higher than this enforcement, the add-on of soil improvement amendment is too much, and have and can cause soil acidification, the fertility of soil is too high, is unfavorable for the growth of plant.
According to a particular embodiment of the invention, the pH value 8-10 of slight salinized soil, basicity 5-15%, saltiness < 0.6%.Thus, soil improvement amendment is good to the improved effect of soil, significantly can improve the basicity of soil, strengthens the fertility of soil, reduces the pH value of soil, and improves the crumb structure of soil.
Below with reference to specific embodiment, the present invention will be described, it should be noted that, these embodiments are only illustrative, and can not be interpreted as limitation of the present invention.
Embodiment 1
Utilize method of the present invention, a kind of improvement of preparation amendment, concrete steps are as follows:
(1) 80g desulfurated plaster and 50g pine sawdust are uniformly mixed, put into fixation reaction container, fixation reaction container front portion connects nitrogen pot, rear portion sleeved condenser;
(2) continue to pass into a small amount of nitrogen to fixation reaction container, heating fixation reaction container to 450 DEG C also keeps 1 hour, and gaseous product passes into double-pipe condenser condensate recovery liquid body product;
(3) after question response device cool to room temperature, collect solid product and be uniformly mixed with 5g organic fungi-manure, after product liquid stratification, filtration obtains water-phase product, get 5g to be sprayed onto in solid product and organic fungi-manure mixture and to stir, obtain improveing amendment, its composition is: desulfurated plaster 70g, biomass coke 20g, biomass water solution 5g and organic fungi-manure 5g.
Utilize the above-mentioned slight saline-alkali soil of improvement amendment process, treat improvement soil pH=8.5, basicity 8%, saltiness 0.3%, improvement amendment amount of application is 1500kg/ mu.After improvement, soil pH is reduced to about 7.5, and basicity is down to less than 5%, and applied once is continuous and effective for many years, improves in 5-8 without the need to repetitive administration.
Embodiment 2
Utilize method of the present invention, a kind of improvement of preparation amendment, concrete steps are as follows:
(1) 70g desulfurated plaster and 40g maize straw section are uniformly mixed, put into fixation reaction container, fixation reaction container front portion connects nitrogen pot, rear portion sleeved condenser;
(2) continue to pass into a small amount of nitrogen to fixation reaction container, heating fixation reaction container to 300 DEG C also keeps 1 hour, and gaseous product passes into double-pipe condenser condensate recovery liquid body product;
(3) after question response device cool to room temperature, collect solid product, simply roll broken after and 7g organic fungi-manure be uniformly mixed, after product liquid stratification, filtration obtains water-phase product, get 8g to be sprayed onto in solid product and organic fungi-manure mixture and to stir, obtain improveing amendment, its composition is: desulfurated plaster 65g, biomass coke 20g, biomass water solution 8g and organic fungi-manure 7g.
Utilize the above-mentioned slight saline-alkali soil of improvement amendment process, treat improvement soil pH=9, basicity 15%, saltiness 0.5%, improvement amendment amount of application 2500kg/ mu.After improvement, soil pH is reduced to about 7.8, and basicity is down to less than 5%, and applied once is continuous and effective for many years, improves in 5-8 without the need to repetitive administration.
Embodiment 3
Utilize method of the present invention, a kind of improvement of preparation amendment, concrete steps are as follows:
(1) 65g desulfurated plaster and 40g poplar sawdust are uniformly mixed, put into fixation reaction container, fixation reaction container front portion connects nitrogen pot, rear portion sleeved condenser;
(2) continue to pass into a small amount of nitrogen to fixation reaction container, heating fixation reaction container to 450 DEG C also keeps 1 hour, and gaseous product passes into double-pipe condenser condensate recovery liquid body product;
(3) after question response device cool to room temperature, collect solid product and be uniformly mixed with 10g organic fungi-manure, after product liquid stratification, filtration obtains water-phase product, get 7g to be sprayed onto in solid product and organic fungi-manure mixture and to stir, obtain improveing amendment, its composition is: desulfurated plaster 60g, biomass coke 15g, biomass water solution 7g and organic fungi-manure 10g.
Utilize the above-mentioned slight saline-alkali soil of improvement amendment process, treat improvement soil pH=8.5, basicity 10%, saltiness 0.3%, improvement amendment amount of application is 2000kg/ mu.After improvement, soil pH is reduced to less than 7.5, and basicity is down to less than 5%, and applied once is continuous and effective for many years, improves in 5-8 without the need to repetitive administration.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a soil improvement amendment, is characterized in that, comprising:
The calcium salt of 60-70 weight part, the biomass coke of 15-20 weight part, the biomass water solution of 5-8 weight part and the organic chemical fertilizer of 5-10 weight part.
2. soil improvement amendment according to claim 1, is characterized in that, described biomass coke and described biomass water solution are obtained by following steps:
Biomass organism is mixed with calcium salt, to obtain the first mixture;
Heat-treated by described first mixture, to obtain thermal treatment solid product and thermal treatment liquid product, wherein, described thermal treatment solid product comprises: described biomass coke and described calcium salt; And
Described thermal treatment liquid product is carried out stratification and water phase separated, and described aqueous phase forms described biomass water solution.
3. soil improvement amendment according to claim 2, is characterized in that, described biomass organism is at least one being selected from sawdust, wood chip and agricultural crop straw,
Optionally, described calcium salt is desulfurated plaster,
Optionally, the weight ratio of described biomass organism and described calcium salt is 0.4-1.1:1,
Optionally, the particle diameter of described calcium salt is 50 microns at the most,
Optionally, described thermal treatment for curing, destructive distillation or pyrolysis,
Optionally, described thermal treatment is 280-500 DEG C in temperature, carries out under the condition of inert atmosphere,
Optionally, the pH value of described biomass water solution is less than 7.
4. soil improvement amendment according to claim 1, is characterized in that, described organic chemical fertilizer is beneficial flora fermentation chemical fertilizer,
Optionally, described beneficial flora be selected from addicted to salt alkali bacillus, milk-acid bacteria, acetic bacteria, yeast and photosynthetic bacteria one of at least.
5. prepare a method for soil improvement amendment, it is characterized in that, comprising:
Biomass organism is mixed with calcium salt, to obtain the first mixture;
Heat-treated by described first mixture, to obtain thermal treatment solid product and thermal treatment liquid product, wherein, described thermal treatment solid product comprises: biomass coke and described calcium salt;
Described thermal treatment liquid product is carried out stratification and water phase separated, and described aqueous phase forms described biomass water solution;
In described thermal treatment solid product, add organic chemical fertilizer, carry out the first stir process, to obtain the second mixture; And
In described second mixture, add described biomass water solution, carry out the second stir process, to obtain described soil improvement amendment.
6. method according to claim 5, is characterized in that, described biomass organism is at least one being selected from sawdust, wood chip and agricultural crop straw,
Optionally, described calcium salt is desulfurated plaster,
Optionally, the particle diameter of described calcium salt is 50 microns at the most,
Optionally, the weight ratio of described biomass organism and described calcium salt is 0.4-1.1:1,
Optionally, described thermal treatment for curing, destructive distillation or pyrolysis,
Optionally, described thermal treatment is 280-500 DEG C in temperature, carries out under the condition of inert atmosphere.
7. method according to claim 5, is characterized in that, described organic chemical fertilizer is beneficial flora fermentation chemical fertilizer,
Optionally, described beneficial flora be selected from addicted to salt alkali bacillus, milk-acid bacteria, acetic bacteria, yeast and photosynthetic bacteria one of at least,
Optionally, the weight ratio of described thermal treatment solid product and described organic chemical fertilizer is 6-14:1.
8. method according to claim 5, is characterized in that, described biomass water solution ph is less than 7,
Optionally, the weight ratio of described second mixture and described biomass water solution is 11-19:1.
9. improve a method for slight salinized soil, it is characterized in that, soil improvement amendment described in any one of claim 1-4 is used to described slight salinized soil.
10. method according to claim 9, is characterized in that, the amount of application of described soil improvement amendment is 1500-2500kg/ mu,
Optionally, the pH value 8-10 of described slight salinized soil, basicity 5-15%, saltiness < 0.6%.
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| CN201510290408.1A CN104893741B (en) | 2015-05-29 | 2015-05-29 | Soil improvement conditioner and its preparation method and application |
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| CN104893741B (en) | 2018-04-20 |
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