CN105123008A - Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land - Google Patents
Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land Download PDFInfo
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Abstract
A method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land relates to the saline land improvement method, and aims to solve the technical problems that an existing saline land cannot plant crops or the crops output is low; the method comprises the following steps: composting and fermenting an organic fertilizer so as to obtain decomposed organic fertilizer, uniformly mixing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer according to weight ratio: 1-12:1:10-20, and piling up the mixture for preparation; uniformly throwing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer mixing improvement material on the soil surface 0-2 days before soil working, and appilication amount is 1350kg/mu; doing intersect rotary tillage for 1-2 times after fertilizer application, rotary tillage depth is 12-15cm, immediately suppressing the soil after rotary tillage, and then sowing is carried out. The method is simple, modifiers are straw biochar and manure, the materials are easy to get, so cost is low; the improved saline land is obvious in effect; the method is suitable for saline land improvement.
Description
Technical field
The present invention relates to the method in improvement saline land.
Background technology
Charcoal is used for discovery and the research that the function of soil melioration comes from Amazon basin, South America black earth (TerraPreta), habitually improve local soil with charcoal, barnyard manure and animal bone as far back as 1500 Nian Qian South America American Indians, form South America Amazon basin soil still very fertile so far.Since the nineties in 20th century, produce charcoal with thermal cracking living beings, and increasing used as the research of soil conditioner and solid carbon agent.Abroad expand research work in the character of charcoal and feature and in the effect of soil physics, chemical property, microorganism and the solid carbon of soil etc., China is then at the early-stage, and basic research is relatively weak.Structures and characteristics search time about charcoal is very short, though the structures and characteristics research of biomass conversion, charcoal has some research reports still very scattered, variety classes living beings and different process inverting biological charcoal also lack system research, and the structures and characteristics of charcoal does not still have definite definition and standard.The character of charcoal or feature such as chemical constitution, composition, volatile matter, water-soluble effluent feature, Acidity of Aikalinity, physical arrangement and porosity, suction-operated, cation exchange capacity, degradability etc. lack system research.The research of the problems demand such as improvement of soil fertility and environmental influence comprehensive system ground, for charcoal utilizes strategy to propose the foundation of science decision.
The soil organic matter is one of important indicator of soil fertility, is also that carbon important in terrestrial ecosystem converges.Charcoal phosphorus content is high, and carbon structure is aromatic ring-shaped, similar to Soil Humus structure, and research both at home and abroad shows, charcoal can improve soil organic carbon level, has farming area in Zuogong soil effect.The soil incubation tests in 2 years that Bruun etc. adopt C14 to mark charcoal and crops straw find, the carbon loss of low temperature and high-temperature biological charcoal is respectively 9.3%, 3.1%, well below the carbon loss of stalk (56%).Kimetu etc. also report, the carbon loss of charcoal is far below green manure, and the stability of charcoal and static stabilization are greater than green manure class legibility organic matter.Stalk, green manure, compost and barnyard manure are manured into soil and under no-tillage, and after general 5-10 remaining only 20%, only have minute quantity to be converted into humus, Britain's Lausanne experiment centre is used the barnyard manure soil organic matter amount of more than 150 year and also be improve only 1 times.And black earth (TerraPreta) soil quality research in Amazon basin shows, charcoal is organic material that is more stable more than traditional organic material, that more easily improve soil organic matter, therefore the United Nations's chemistry pollution prevention pact and some governments are appealed charcoal as soil melioration and the important technology product of tackling climatic variation.
Current charcoal is substantially all short-term research result as soil conditioner and the application study of fertilizer slow release carrier, some is only the result of laboratory earth pillar drip washing, soil incubation and characteristic curve of soil moisture evaluation of measuring, and on soil physics, chemistry and biological long-term impact how charcoal under actual field conditions, how affect the drip washing of soil and fertilizer nutrient, especially the stability of charcoal in soil all needs long-term experimental study.
Charcoal has concrete dynamic modulus (little of being less than 1 nanometer, greatly to tens nanometers, even some tens of pm), specific surface area is large, adsorptivity is strong characteristic.Thus charcoal can not only be stored, adsorb large quantity of moisture and nutrient, and provide good microenvironment for microorganism perches, and then increase micro organism quantity and activity, particularly Arbuscular mycorrhizal fungi (AMF) or vesicular-arbuscular mycorrhiza fungi (VAM).Based on this, inventor has germinated biological carbon and microbial-bacterial fertilizer, fertilizer assembly, for improveing the thinking of soil.On the one hand, large, the adsorptivity of specific surface area and the strong charcoal of buffer capacity contribute to the effect playing microbial-bacterial fertilizer and fertilizer.The charcoal applied provides good micro-ecological environment for adsorbed a large amount of microorganisms, improves fertilizer decompose of nutrient, releasability, significantly improves fertilizer effect, effectively solves a difficult problem for ubiquitous microbial manure fertilizer efficiency instability simultaneously.On the other hand, the organic matter of a large amount of microorganism secretion, the decomposition etc. of dead thalline make the organic substance of salt affected soil increase, and saline and alkaline reduces; A large amount of beneficial microbe produces in reproductive process simultaneously polysaccharide, viscose glue and organic acid are the binding agents forming soil granular, a large amount of granular structure and the lighter charcoal of proportion add soil non-capillary pore gap, loosing soil is breathed freely, unit weight reduces, make saline-alkali soil drench salt action to accelerate, suppress the accumulation of salt in the surface soil, effectively reduce upper soll layer salinity, simultaneously organic acid can sweetening of the soil alkalescence, effectively provides alkaline land improving effect.Thus obtain the improved effect of biological carbon and microbial-bacterial fertilizer, fertilizer combined improved saline land 1+1+1 > 3.
" charcoal " utilizes the discharge that can also greatly reduce greenhouse gases.The famous scientist's Tim Fu Lannarui of Australia points out, the greenhouse gases amount of soil release is in the world more than 10 times of greenhouse gases that fossil-fueled produces.By measuring the gas discharged in soil and contrasting, find that " charcoal " significantly can reduce the release of carbonic acid gas and nitrous oxide, and nitrous oxide is another kind of more serious greenhouse gases, it manufactures 300 times that effect of greenhouse effect is carbonic acid gas, sustainable 150 years in atmosphere.
China is a large agricultural country, and a large amount of uses of chemical fertilizer, agricultural chemicals, have caused the problems such as a large amount of soil compactions and environmental pollution for a long time.The Chinese government promises to undertake in the reduction of discharging that 2010 Copenhagen meetings are made and makes the agricultural of China also be faced with the immense pressure of energy-saving and emission-reduction, and under this overall background, should accomplish something in China agriculture and countryside in energy-saving and emission-reduction.Charcoal effectively can reduce the consumption of the energy in agricultural production process, utilizes charcoal to develop low-carbon agriculture gesture and must go.
Summary of the invention
The present invention be to solve existing saline land can not long-term cropping or the low technical problem of crop yield, and provide straw biological carbon and microbial-bacterial fertilizer assembly to improve the method in saline land.
Straw biological carbon of the present invention and microbial-bacterial fertilizer assembly improve the method in saline land, carry out according to the following steps:
One, first fertilizer is piled at 20 ~ 60 DEG C rotten fermentation, obtain the fertilizer that becomes thoroughly decomposed, then straw biological charcoal, microbial-bacterial fertilizer and the fertilizer that becomes thoroughly decomposed are mixed according to the weight ratio of 6 ~ 12:1:10 ~ 20, stack 7 ~ 10 days, stacking height≤1.0 meters, obtains mixed fertilizer;
Two, mixed fertilizer step one obtained for 0 ~ 2 day before whole ground evenly spreads fertilizer over the fields in earth's surface, and amount of application is 1350 ~ 2100kg/ mu;
Three, intersect rotary tillage 1 ~ 2 time after spreading fertilizer over the fields immediately, the rotary tillage degree of depth is 12 ~ 15cm, suppresses immediately after rotary tillage, can sow afterwards.
The another kind of straw biological carbon of the present invention and microbial-bacterial fertilizer assembly improve the method in saline land, carry out according to the following steps:
One, first straw biological charcoal is mixed with fertilizer, the rotten fermentation of heap at 20 ~ 60 DEG C, and then mix with microbial-bacterial fertilizer, stack 7 ~ 10 days, stack highly≤1.0 meters, obtain mixed fertilizer; Wherein the weight ratio of straw biological charcoal, microbial-bacterial fertilizer and fertilizer is 6 ~ 12:1:10 ~ 20;
Two, mixed fertilizer step one obtained for 0 ~ 2 day before whole ground evenly spreads fertilizer over the fields in earth's surface, and amount of application is 1350 ~ 2100kg/ mu;
Three, intersect rotary tillage 1 ~ 2 time after spreading fertilizer over the fields immediately, the rotary tillage degree of depth is 12 ~ 15cm, suppresses immediately after rotary tillage, can sow afterwards.
Mechanism of the present invention and beneficial effect:
Charcoal phosphorus content is high, and carbon structure is aromatic ring-shaped, similar to Soil Humus structure, is difficult to be decomposed by the microorganisms utilization in being manured into soil, and adds a kind of effective way that charcoal is considered to carbon sequestration in soil.Charcoal has larger specific surface area, the Cation Exchange Capacity in Soils using charcoal is high, soil has higher buffer capacity, significantly reduce the leaching loss of nutrient, improve the plant recovery of nutrient of plant, increase soil beneficial bacterium quantity simultaneously, reduce the bulk density of soil, effectively can improve soil physical and chemical property, improvement saline land.
Based on the above-mentioned characteristic of charcoal, in conjunction with microbial-bacterial fertilizer and fertilizer utilization rate of fertilizer low, decompose of nutrient discharges feature slowly, and inventor has germinated ferments biological carbon and microbial-bacterial fertilizer, the corruption of fertilizer hybrid reactor, combines the thinking for improveing soil.The object that biological carbon and microbial-bacterial fertilizer, fertilizer assembly are used is to make biological carbon fully adsorb organic fertilizer nutrient, reduce fertilizer nutrient loss and volatilization, the more important thing is that being beneficial to beneficial microbe grows in a large number, breeds, promote the decomposition release of fertilizer nutrient.
On the one hand, large, the adsorptivity of specific surface area and the strong charcoal of buffer capacity contribute to the effect playing microbial-bacterial fertilizer and fertilizer.The charcoal applied provides good micro-ecological environment for adsorbed a large amount of microorganisms, improves fertilizer decompose of nutrient, releasability, significantly improves fertilizer effect, effectively solves a difficult problem for ubiquitous microbial manure fertilizer efficiency instability simultaneously.On the other hand, the organic matter of a large amount of microorganism secretion, the decomposition etc. of dead thalline make the organic substance of salt affected soil increase, and saline and alkaline reduces; A large amount of beneficial microbe produces in reproductive process simultaneously polysaccharide, viscose glue and organic acid are the binding agents forming soil granular, a large amount of granular structure and the lighter charcoal of proportion add soil non-capillary pore gap, loosing soil is breathed freely, unit weight reduces, make saline-alkali soil drench salt action to accelerate, suppress the accumulation of salt in the surface soil, effectively reduce upper soll layer salinity, simultaneously organic acid can sweetening of the soil alkalescence, effectively provides alkaline land improving effect.Thus obtain the improved effect of biological carbon and microbial-bacterial fertilizer, fertilizer combined improved saline land 1+1+1 > 3.
Beneficial effect of the present invention:
1, the inventive method is easy, and modifying agent used is only straw biological charcoal, microbial-bacterial fertilizer and muck, and raw material is easy to get, with low cost; Utilize the agricultural wastes such as stalk, fertilizer resource, carry out alkaline land improving, upgrading low-and medium-yield farmland, more be conducive to advancing Development of Recycle Agriculture, increase the solid carbon of terrestrial ecosystem, reduce agriculture district carbon emission, alleviate the environmental pollution of agriculture district, accomplish harmless treatment and the recycling of agricultural wastes.Ecological benefits, economic benefit, social benefit are remarkable, and development prospect is considerable.
2, the inventive method improvement saline land effect is extremely remarkable.2013-2015 inventor utilizes the inventive method to test on typical case saline land, Xi great beach, Pingluo County, Ningxia-white stiff soil in silver north, within continuous 3 years, improved test obtains as drawn a conclusion: biological carbon and microbial-bacterial fertilizer, decomposed manure are applied to have according to design quantity assembly and done and complementary effect mutually significantly, and improvement saline land effect is extremely remarkable.
Investigation result: the fresh careless average yield for the treatment of region herbage using improved materials is 2427.2kg/ mu, the check plot (1383kg/ mu) of more not using improved materials increases production 1044.2kg/ mu, and amount of increase in production reaches 75.5%; Treatment region soil pH 8.84, comparatively check plot (pH9.6), reduce 0.76, and reduction amplitude is 7.92%; Treatment region bulk density of soil 1.13g/cm
3, comparatively check plot (1.35g/cm
3) reduce 0.22g/cm
3, reduction amplitude reaches 16.2%; Treatment region alkalization of soils degree (%) 7.22, comparatively check plot (12.67) reduce 5.45, and reduction amplitude reaches 43.0% (see table 1).
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises any combination between each embodiment.
Embodiment one: present embodiment straw biological carbon and microbial-bacterial fertilizer assembly improve the method in saline land, carry out according to the following steps:
One, first fertilizer is piled at 20 ~ 60 DEG C rotten fermentation, obtain the fertilizer that becomes thoroughly decomposed, then straw biological charcoal, microbial-bacterial fertilizer and the fertilizer that becomes thoroughly decomposed are mixed according to the weight ratio of 6 ~ 12:1:10 ~ 20, stack 7 ~ 10 days, stacking height≤1.0 meters, obtains mixed fertilizer;
Two, mixed fertilizer step one obtained for 0 ~ 2 day before whole ground evenly spreads fertilizer over the fields in earth's surface, and amount of application is 1350 ~ 2100kg/ mu;
Three, intersect rotary tillage 1 ~ 2 time after spreading fertilizer over the fields immediately, the rotary tillage degree of depth is 12 ~ 15cm, suppresses immediately after rotary tillage, can sow afterwards.
In present embodiment within the scope of straw biological charcoal amount of application 10-20 ton/hectare, reclamation result and consumption are proportionate.2013-2015 is 15 tons/hectare at the good middle charcoal consumption of typical case saline land, the Ningxia silver white stiff land reform in north, Be very effective, charcoal and microbial-bacterial fertilizer, organic manure compounding application have more significant reciprocal effects simultaneously, and this shows charcoal and improve soil with microbial-bacterial fertilizer, organic manure assembly have significantly complementation or act synergistically.
Embodiment two: present embodiment and embodiment one unlike: straw biological charcoal described in step one be agricultural crop straw through carbonizing the charcoal formed, wherein agricultural crop straw comprises maize straw, rice straw, cotton stalk etc.Other is identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two unlike: fertilizer described in step one is forage grass animal wastes, as cow dung, sheep excrement etc.Other is identical with embodiment one or two.
Embodiment four: one of present embodiment and embodiment one to three unlike: microbial-bacterial fertilizer described in step one is composite microbic bacterial fertilizer or microbial bacterial agent.Other is identical with one of embodiment one to three.
Composite microbic bacterial fertilizer described in present embodiment and microbial bacterial agent are commercial goods.
Embodiment five: one of present embodiment and embodiment one to four unlike: in step one, the time of the rotten fermentation of heap is 15 ~ 30 days.Other is identical with one of embodiment one to four.
Embodiment six: one of present embodiment and embodiment one to five unlike: charcoal, microbial-bacterial fertilizer and the fertilizer mixed fertilizer that becomes thoroughly decomposed evenly were spread fertilizer over the fields in earth's surface in step 2 whole first 1 day.Other is identical with one of embodiment one to five.
Embodiment seven: one of present embodiment and embodiment one to six unlike: adopt general rotovator rotary tillage in step 3.Other is identical with one of embodiment one to six.
Embodiment eight: present embodiment straw biological carbon and microbial-bacterial fertilizer assembly improve the method in saline land, is characterized in that the method is carried out according to the following steps:
One, first straw biological charcoal is mixed with fertilizer, the rotten fermentation of heap at 20 ~ 60 DEG C, and then mix with microbial-bacterial fertilizer, stack 7 ~ 10 days, stack highly≤1.0 meters, obtain mixed fertilizer; Wherein the weight ratio of straw biological charcoal, microbial-bacterial fertilizer and fertilizer is 6 ~ 12:1:10 ~ 20;
Two, mixed fertilizer step one obtained for 0 ~ 2 day before whole ground evenly spreads fertilizer over the fields in earth's surface, and amount of application is 1350 ~ 2100kg/ mu;
Three, intersect rotary tillage 1 ~ 2 time after spreading fertilizer over the fields immediately, the rotary tillage degree of depth is 12 ~ 15cm, suppresses immediately after rotary tillage, can sow afterwards.
In present embodiment within the scope of straw biological charcoal amount of application 10-20 ton/hectare, reclamation result and consumption are proportionate.2013-2015 is 15 tons/hectare at the good middle charcoal consumption of typical case saline land, the Ningxia silver white stiff land reform in north, Be very effective, charcoal and microbial-bacterial fertilizer, organic manure compounding application have more significant reciprocal effects simultaneously, and this shows charcoal and improve soil with microbial-bacterial fertilizer, organic manure assembly have significantly complementation or act synergistically.
Embodiment nine: present embodiment and embodiment eight unlike: straw biological charcoal described in step one be agricultural crop straw through carbonizing the charcoal formed, wherein agricultural crop straw comprises maize straw, rice straw, cotton stalk etc.Other is identical with embodiment eight.
Embodiment ten: present embodiment and embodiment eight or nine unlike: fertilizer described in step one is forage grass animal wastes, as cow dung, sheep excrement etc.Other is identical with embodiment eight or nine.
Embodiment 11: one of present embodiment and embodiment eight to ten unlike: microbial-bacterial fertilizer described in step one is composite microbic bacterial fertilizer or microbial bacterial agent.Other is identical with one of embodiment eight to ten.
Composite microbic bacterial fertilizer described in present embodiment and microbial bacterial agent are commercial goods.
Embodiment 12: one of present embodiment and embodiment eight to ten one unlike: piling the rotten time of fermenting in step one is 15 ~ 30 days.Other is identical with one of embodiment eight to ten one.
Embodiment 13: one of present embodiment and embodiment eight to ten two unlike: charcoal, microbial-bacterial fertilizer and the fertilizer mixed fertilizer that becomes thoroughly decomposed evenly were spread fertilizer over the fields in earth's surface in step 2 whole first 1 day.Other is identical with one of embodiment eight to ten two.
Embodiment 14: one of present embodiment and embodiment eight to ten three unlike: adopt general rotovator rotary tillage in step 3.Other is identical with one of embodiment eight to ten three.
For verifying that beneficial effect of the present invention carries out following test:
Embodiment 1:
The method that the present embodiment straw biological carbon and microbial-bacterial fertilizer assembly improve saline land is carried out according to the following steps:
One, 2013-2015 carries out on the white stiff soil in silver north, typical case saline land, Xi great beach, Pingluo County, Ningxia, experiment and demonstration area 200 mu.This saline land background pH is 9.6, is typical saline land, and improvement planting in advance is fluffy by the alkali for self-sow, and not even a blade of grass grows in part plot, can not long-term cropping.At the end of four months, first fertilizer is piled at 40 DEG C rotten fermentation, obtain the fertilizer become thoroughly decomposed, then straw biological charcoal, microbial-bacterial fertilizer and the fertilizer that becomes thoroughly decomposed are mixed according to the weight ratio of 6:1:20, stacks 7 days, for subsequent use, stack highly≤1.0 meters;
Described microbial-bacterial fertilizer is ETS composite microbiological fertilizer (production of Tianjin biotechnology Development Co., Ltd).
Two, charcoal, microbial-bacterial fertilizer and the fertilizer mixed fertilizer that becomes thoroughly decomposed evenly spread fertilizer over the fields in earth's surface by early May wholely for first 1 day, and amount of application is 1350kg/ mu, wherein, and straw biological charcoal 300kg/ mu, microbial-bacterial fertilizer 50kg/ mu, decomposed cow dung 1000kg/ mu.
Three, mixed fertilizer evenly spreads fertilizer over the fields after soil surface is spread fertilizer over the fields on earth's surface, and adopt the rotary tillage twice of general rotovator intersection immediately, rotary tillage degree of depth 15cm, suppresses afterwards, waits for sowing.
Four, sow: varieties of plant is barnyardgrass, seeding quantity 10kg/ mu.
Type of seeding: trench digging drilling (or machine sowing), bar is apart from 30cm, seed level 3-4cm.
Field management: emerge to gathering first 15 days, every 10-15 days pours water 1 time (depending on rainfall and market conditions); Emerge to sealing ridge intertill and clean tillage 2-3 time.
Five, pilot survey result.In charcoal improvement saline land, est and pilot project is provided with test region and check plot simultaneously.
Test region: straw biological charcoal 300kg/ mu, microbial-bacterial fertilizer 50kg/ mu, decomposed cow dung 1000kg/ mu.
Check plot: do not use charcoal but application of organic fertilizers (1000kg/ mu).
Test region is identical with check plot planting forage grass kind and field management.
Field investigation is analyzed with detection:
Use modifying agent (charcoal, microbial-bacterial fertilizer and the fertilizer mixed fertilizer become thoroughly decomposed) front and results after gather soil specimen, measure soil physico-chemical property (bulk density of soil, pH, basicity), harvest time measures forage yield.Within continuous 3 years, improved test obtains as drawn a conclusion: charcoal and microbial-bacterial fertilizer, fertilizer are according to design quantity combined improved saline land effect highly significant.
The survey showed that for 2013-2015: the fresh careless average yield for the treatment of region herbage using modifying agent is 2427.2kg/ mu, and the check plot (1383kg/ mu) of more not using improved materials increases production 1044.2kg/ mu, and amount of increase in production reaches 75.5%; Treatment region soil pH 8.84, comparatively check plot (pH9.6), reduce 0.76, and reduction amplitude is 7.92%; Treatment region bulk density of soil 1.13g/cm
3, comparatively check plot (1.35g/cm
3) reduce 0.22g/cm
3, reduction amplitude reaches 16.2%; Treatment region alkalization of soils degree (%) 7.22, comparatively check plot (12.67) reduce 5.45, and reduction amplitude reaches 43.0% (see table 1).
Table 12013-2015 charcoal and microbial-bacterial fertilizer assembly improve saline land effect detection analytical table (mean value)
Large area result of the test shows for many years, and straw biological charcoal is large with its concrete dynamic modulus, specific surface area, adsorptivity and the strong characteristic of buffer capacity and microbial-bacterial fertilizer, fertilizer assembly, has significantly complementary or synergistic effect, improves saline land effect extremely remarkable.The straw biological charcoal applied provides good micro-ecological environment for adsorbed a large amount of microorganisms, improves fertilizer decompose of nutrient, releasability, significantly improves fertilizer fertilizer efficiency, and effectively removes fertilizer stink, alleviates farming and pastoral area environmental pollution; Contribute to the fertilizer efficiency playing microbial-bacterial fertilizer simultaneously, effectively solve a difficult problem for ubiquitous microbial manure fertilizer efficiency instability.In addition, the straw biological charcoal that the technology of the present invention adopts is that the agricultural wastes such as maize straw, rice straw, cotton stalk are processed into through charing, while effectively improveing saline land, achieve the efficiency utilization of the agricultural wastes such as crops straw, fertilizer resource.China is a large agricultural country, and a large amount of uses of chemical fertilizer, agricultural chemicals, have caused the problems such as a large amount of soil compactions, degeneration and environmental pollution for a long time.Utilize the agricultural wastes such as stalk, fertilizer resource, supporting biotechnology, Combination application microbial-bacterial fertilizer carries out alkaline land improving, upgrading low-and medium-yield farmland, more be conducive to advancing Development of Recycle Agriculture, increase the solid carbon of terrestrial ecosystem, reduce agriculture district carbon emission, alleviate the environmental pollution of agriculture district, have a extensive future.Ecological benefits, economic benefit, social benefit are remarkable, and development prospect is considerable.
Claims (10)
1. straw biological carbon and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that the method is carried out according to the following steps:
One, first fertilizer is piled at 20 ~ 60 DEG C rotten fermentation, obtain the fertilizer that becomes thoroughly decomposed, then straw biological charcoal, microbial-bacterial fertilizer and the fertilizer that becomes thoroughly decomposed are mixed according to the weight ratio of 6 ~ 12:1:10 ~ 20, stack 7 ~ 10 days, stacking height≤1.0 meters, obtains mixed fertilizer;
Two, mixed fertilizer step one obtained for 0 ~ 2 day before whole ground evenly spreads fertilizer over the fields in earth's surface, and amount of application is 1350 ~ 2100kg/ mu;
Three, intersect rotary tillage 1 ~ 2 time after spreading fertilizer over the fields immediately, the rotary tillage degree of depth is 12 ~ 15cm, suppresses immediately after rotary tillage, can sow afterwards.
2. straw biological carbon according to claim 1 and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that straw biological charcoal described in step one is the charcoal that agricultural crop straw is formed through charing.
3. straw biological carbon according to claim 1 and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that fertilizer described in step one is forage grass animal wastes.
4. straw biological carbon according to claim 1 and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that microbial-bacterial fertilizer described in step one is composite microbic bacterial fertilizer or microbial bacterial agent.
5. straw biological carbon according to claim 1 and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that the time of the rotten fermentation of heap in step one is 15 ~ 30 days.
6. straw biological carbon according to claim 1 and microbial-bacterial fertilizer assembly improve the method in saline land, to it is characterized in that in step 2 within first 1 day, evenly spreading fertilizer over the fields charcoal, microbial-bacterial fertilizer and the fertilizer mixed fertilizer that becomes thoroughly decomposed in earth's surface wholely.
7. straw biological carbon according to claim 1 and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that adopting general rotovator rotary tillage in step 3.
8. straw biological carbon and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that the method is carried out according to the following steps:
One, first mixed with fertilizer by straw biological charcoal, the rotten fermentation of heap at 20 ~ 60 DEG C, and then mix with microbial-bacterial fertilizer, stack 7-10 days, stacking height≤1.0 meters, obtains mixed fertilizer; Wherein the weight ratio of straw biological charcoal, microbial-bacterial fertilizer and fertilizer is 6 ~ 12:1:10 ~ 20;
Two, mixed fertilizer step one obtained for 0 ~ 2 day before whole ground evenly spreads fertilizer over the fields in earth's surface, and amount of application is 1350 ~ 2100kg/ mu;
Three, intersect rotary tillage 1 ~ 2 time after spreading fertilizer over the fields immediately, the rotary tillage degree of depth is 12 ~ 15cm, suppresses immediately after rotary tillage, can sow afterwards.
9. straw biological carbon according to claim 8 and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that the time of the rotten fermentation of heap in step one is 15 ~ 30 days.
10. straw biological carbon according to claim 8 and microbial-bacterial fertilizer assembly improve the method in saline land, it is characterized in that straw biological charcoal described in step one is the charcoal that agricultural crop straw is formed through charing.
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| CN112189394A (en) * | 2020-08-21 | 2021-01-08 | 中农海稻(深圳)生物科技有限公司 | Three-dimensional improvement method for saline-alkali soil |
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| CN112272986A (en) * | 2020-09-14 | 2021-01-29 | 上海特石生态科技有限公司 | Two-step soil rapid improvement technology based on in-situ transformation |
| CN113122268A (en) * | 2021-04-20 | 2021-07-16 | 中国科学院东北地理与农业生态研究所 | Method for improving soda saline-alkali soil by biochar and microbial agent |
| CN113307680A (en) * | 2021-05-18 | 2021-08-27 | 昆明理工大学 | Large-area fertilization improving material for alkaline tailings and improving method thereof |
| CN113582751A (en) * | 2021-05-27 | 2021-11-02 | 吉林市新陆生态农业科技有限公司 | Carbon-based biological bacterial fertilizer for saline-alkali soil improvement and preparation method thereof |
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