CN105037035B - A kind of coastal tidal saline-alkali soil conditioner and its application - Google Patents
A kind of coastal tidal saline-alkali soil conditioner and its application Download PDFInfo
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Abstract
A kind of coastal tidal saline-alkali soil conditioner and its application, in mass ratio：Organic fertilizer is 2 ~ 6 parts, humic acid is 0 ~ 0.45 part, trace mineral supplement be combined as 0.005 ~ 0.015 part, urea be 0.025 part, Diammonium phosphate (DAP) be 0.050 part；The trace mineral supplement combination includes：Polyacrylamide, " 732 " type cationic ion-exchange resin, the basic element of cell division, auxin, its quality proportioning are：Polyacrylamide 60%, " 732 " type cationic ion-exchange resin 30%, the basic element of cell division 5%, auxin 5%.The present invention can culture fertility, improved soil, increase soil agreegate, improve biological activity of soil, reduce soil sample salt content, promote Plants in Saline-alkali Soil growth.
Description
Technical field
The invention belongs to Coastal beach land use and technical field of soil fertilizer, is related to one kind and is based on Orthogonal Experiment and Design
Coastal tidal saline-alkali soil conditioner and its application.
Background technology
China salt-soda soil is widely distributed, aboundresources, is mainly distributed on northwest, northeast and coastal region, the gross area is more than 5
Hundred million mu.China is Ensuring Food Safety and social stability, proposes 1,800,000,000 mu of soil red lines.And with China's rapid economic development and
Urbanization process moves forward steadily, and land resource is more and more nervous, and the exploitation to some middle-and-low-yielding fields and dyskinetic soil seems
It is particularly important.In the salt-soda soil in China, there is the saline-alkali wasteland and nearly 200,000,000 mu of saline and alkaline obstacle cultivated area of agricultural use potentiality,
Wherein agricultural use can be carried out in the recent period close to half, potentiality to be exploited is huge, has important social effect and economic value.
At present, the main chemically angle of improvement and biological modification of research to coastal tidal saline-alkali soil conditioner is entered
OK.The measure that these patent some are taken is relatively complicated, it is difficult to which accurate quantification is implemented, and is not easy to obtain good result, such as Tian Jinji
A kind of saline-alkali soil conditioners of its environmental science and technology Development Co., Ltd CN201310300314.9 and preparation method thereof.Some formulas
It is complex, it is necessary to the improvement material variety of addition is very more, be not easy to prepare, and its configuration proportion scope is excessive, it is difficult to true
Determine accurate dosage, and in practical operation, often due to the quality problem of partial material, cause modifying agent not play best
Effect, such as Yang De will CN201210203263 saline-alkali soil conditioners and preparation method and application.Some modifying agents need
Special material, either cost itself is higher or locality can not obtain, it is necessary to which long-distance transportation, larger improves modifying agent
Cost, its use range is limited, as Lu Yu offers a kind of saline-alkali soil conditioners of CN201210297471.4, Jiangsu east pearl scape
See a kind of North China's salt affected soil modification methods of limited company CN201410287425.5 etc..Some modifying agent composition kinds
Class is similar, and the principle of work and power is single, as Academy of Agricultural Sciences, Shanghai City CN201310078882.9 salt affected soils improve Special slow release fertilizer
Material and preparation method thereof, mainly release coated carbamide using common chemical fertilizer is gentle, it is difficult to efficiently reach improved effect comprehensively.Have
Modifying agent species is excessively single, such as a kind of saline-alkali soil conditioners of Jilin Agriculture University CN200410010772.x and improvement side
Method, a kind of material of aluminum sulfate is only used, the refined CN201310359499.0 salt affected soils modification methods of Zhao Ya, only uses lactic acid bacteria one
Kind microorganism, improved effect be not comprehensive.
Partial monopoly prepares saline-alkali soil conditioner using the discarded object or accompaniment of different industries, as the Tianjin north is green
A kind of alkali soil modification fertility intensifying amendments of industry Eco Science Technology Co., Ltd CN200710059730.9 and preparation method utilize city
Domestic sludge, TEDA in Tianjin's greening Group Co., Ltd's CN201210008115 one kind soil improvement made of garden waste
Matrix and preparation method thereof utilizes city trees and shrubs discarded object, Binzhou Zhihe Productivity Promotion Center CN201210286131 one kind
Saline-alkali soil conditioner and preparation method thereof utilizes fish aquatic products processing discarded object.Such saline-alkali soil conditioner can be larger
Economized on resources in degree, twice laid, both reduced discarded object quantity, and improved saline-alkali soil again.There is also portion for such modifying agent
Branch office is sex-limited.First, source problem is carried out, urban waste can only typically apply and be improved with surrounding city, and agricultural wastes can only answer
It is less for the local improvement in rural area, aquatic products processing discarded object total amount.Second, composition is difficult to hold, the discarded objects of different regions into
Divide very different, it is more difficult to its general status is held, can not accurately be determined according to the proportioning of partial monopoly, or, according to part specially
Effect after the formula of profit is prepared is difficult to reach optimum efficiency.3rd, the harmful components in the discarded object in city source are more, such as
More polyaromatics, Polychlorinated biphenyls, heavy metal etc., in actual applications, can only partly solve the salt damage of saline-alkali soil and alkalization, but again
New heavy metal pollution or organic pollution are introduced, still can not use, lose more than gain.
In summary, in the research of current saline-alkali soil conditioner, in the selection of improvement material variety and the determination of dosage
Aspect, it is primarily present following four problem：
(1) almost all modifying agent all have a carry out method discussion at present, it is therein it is various add materials species with add
Add the amount of material, without more careful explanation and discussion, this undoubtedly reduces its scientific and convincingness.
(2) part modifying agent improvement material variety is excessively single, as Jilin Agriculture University CN200410010772.x is a kind of
Saline-alkali soil conditioner and modification method, only use aluminum sulfate, the refined CN201310359499.0 salt affected soils modification methods of Zhao Ya
Lactic acid bacteria is only applied, such modifying agent is difficult in adapt to a variety of changes of field current conditions and different improvement require, it is difficult to comprehensively,
System, lasting improvement.
(3) selection of part modifying agent improvement material variety is excessive, and its specific dosage formula is necessarily difficult to scientific experimentation,
8 kinds of improvement materials, Yang Dezhi are applied as teacher enters CN200810017565.5 high activity biological water-retention saline alkali soil modifiers
Nearly 10 kinds improvement materials of CN201210203263.3 saline-alkali soil conditioners and preparation method and application application.
(4) material in part improvement agent prescription is chosen often its action principle and repeated without comprehensive, and Zhang Ping Hui
Three kinds of a kind of saline-alkali soil conditioner application aluminum sulfate of CN200910072634.7, iron ammonium sulfate, magnesium sulfate modifying agents are all
Sulphate cpd, Lu Zhen states CN200910176749.0 saline-alkali soil conditioners and preparation method thereof main component glacial acetic acid,
Citric acid, oxalic acid are all acid.
The content of the invention
The technical problem of solution：The present invention is for the good difficult point of current coastal saline-alkali land reform, the i.e. viscous weight of soil, hardened, row
The problems such as aqueous nature is poor, and nutrient content is low, and salt content is high, and microorganism species sum is less, and species is single, and overcome existing skill
The deficiency of art means and modifying agent, such as the problems such as the science of material selection and dosage, having formulated out one kind can quickly reduce
Soil salt content, increase soil agreegate, improve biological activity of soil, accelerate salt affected soil to foster and apply fertilizer curing, promote plant to give birth to
Long coastal tidal saline-alkali soil conditioner and its application.
Technical scheme：
A kind of coastal tidal saline-alkali soil conditioner, in mass ratio：Organic fertilizer is 2~6 parts, humic acid be 0~
0.45 part, trace mineral supplement be combined as 0.005~0.015 part, urea be 0.025 part, Diammonium phosphate (DAP) be 0.050 part；It is described micro-
Amount additive combination includes：Polyacrylamide, " 732 " type cationic ion-exchange resin, the basic element of cell division, auxin, its quality are matched somebody with somebody
Than for：Polyacrylamide 60%, " 732 " type cationic ion-exchange resin 30%, the basic element of cell division 5%, auxin 5%.
Due to material dosages such as polyacrylamide, " 732 " type cationic ion-exchange resin, the basic element of cell division, auxin very
It is few, in the present invention, without exception using its combine according to a certain percentage after use as overall, referred to as trace mineral supplement combination.
Above-mentioned coastal tidal saline-alkali soil conditioner, including the combination of organic fertilizer, humic acid, trace mineral supplement, urea, phosphoric acid
Two ammoniums, it is most preferably formulated, is calculated as by its mass fraction：4 parts of organic fertilizer, 0.15 part of humic acid, trace mineral supplement combination
0.015 part, 0.025 part of urea, 0.05 part of Diammonium phosphate (DAP).
Above-mentioned coastal tidal saline-alkali soil conditioner, the component of optimization formula 1 include organic fertilizer, trace mineral supplement combination,
Urea, Diammonium phosphate (DAP), it is calculated as by its mass fraction：4 parts of organic fertilizer, 0.01 part of trace mineral supplement combination, 0.025 part of urea, phosphorus
Sour 0.05 part of two ammonium.
Above-mentioned coastal tidal saline-alkali soil conditioner, the component of optimization formula 2 include organic fertilizer, trace mineral supplement combination,
Urea, Diammonium phosphate (DAP), it is calculated as by its mass fraction：6 parts of organic fertilizer, 0.015 part of trace mineral supplement combination, 0.025 part of urea, phosphorus
Sour 0.05 part of two ammonium.
Above-mentioned coastal tidal saline-alkali soil conditioner, the component of optimization formula 3 include organic fertilizer, humic acid, micro addition
Agent combination, urea, Diammonium phosphate (DAP), it is calculated as by its mass fraction：6 parts of organic fertilizer, 0.15 part of humic acid, trace mineral supplement combination
0.01 part, 0.025 part of urea, 0.05 part of Diammonium phosphate (DAP).
Above-mentioned coastal tidal saline-alkali soil conditioner, decomposing microbial inoculum progress is fully decomposed, it is good to have to add for organic fertilizer
C/N than feces of livestock and poultry, C/N than control 25~30:1, moisture control is in 70wt.%~130wt.%.
Above-mentioned coastal tidal saline-alkali soil conditioner, humic acid are lignite extract, and its humic acid effective content is not less than
50wt.%
The application of above-mentioned coastal tidal saline-alkali soil conditioner, during for afforestation, in 2~4g/kg of salt content
Degree salt-soda soil dosage is 0.6~1kg/m2, salt content>4g/kg heavy salinized ground dosage is 1.2~1.6kg/m2；For nonirrigated farmland
When, it is 0.6~1kg/m for salt content 2~4g/kg moderate saline-alkali soils dosage2, salt content>4g/kg heavy salinized ground dosage is
1.2~1.6kg/m2；It is 1.0~1.5kg/m for salt content 2~4g/kg moderate saline-alkali soils dosage during for paddy field2, saliferous
Amount>4g/kg heavy salinized ground dosage is 1.5~2.0kg/m2。
Beneficial effect：
1st, improveing material variety and pass through strict textual criticism and screening, the dosage for improveing material also passes through strict calculating and demonstration,
With higher science.
2nd, improved effect is comprehensive.The modifying agent of selection is from multiple angles such as physics, chemistry, biology, fertility to salt affected soil
Improved.
3rd, organic fertilizer and chemical fertilizer are included in being formulated, it is possible to increase soil fertility, vegetable soil, make up saline and alkaline soil
The low deficiency of nutrient content.
4th, after modifying agent is applied, the germination percentage of planting plants and final survival rate are effectively increased, for follow-up earth's surface
Vegetation construction and agricultural production are significant, while the cost that can be reduced and fill the gaps with seedlings, transplant.
5th, plant establishment and growth can be promoted, plant height and plant height increment is improved, add plant fresh weight and dry
Accumulation, increase yield.The ornamental value of garden plantses and the economic value of agricultural crops can directly be improved.
6th, the water retention property of soil can be improved, increases soil moisture content.Soil moisture content is high, can mitigate salt damage, promotees
Enter plant growth.
7th, soil salt content can be reduced.Topsoil salt content height is one of most basic barrier factors of salt affected soil.Reduce
Soil salt content, can directly facilitate the improvement of salt affected soil, improve its value.
8th, the pH of soil can be reduced.The alkali evil problem of salt affected soil is also one of its ultimate impediment sex factor, reduces soil
Earth pH, be advantageous to many-sided improvement of soil physics, chemistry, biological property.
9th, the nutrient content of soil, such as organic matter, full nitrogen can be improved, fertilizing soil, increases soil fertility.
10th, the crumb structure of soil can be increased, improve the biological community structure of salt affected soil, improve edaphon
Diversity, increase beneficial bacterium quantity.
11st, cost is low, and effect is good, and prospect of the application is wide.
Brief description of the drawings
Fig. 1 is the method for expressing schematic diagram of orthogonal arrage；
Fig. 2 is that the equilibrium of the hydraulic test of 3 factor 3 disperses stereogram；
Fig. 3 is alkali thatch grass and its drawing of seeds；
Fig. 4 is the influence figure of the present invention and control to experimental field pH；
Fig. 5 is the present invention and control to experimental field EC1:5 influence figure；
Fig. 6 is the influence figure of the present invention and control to experimental field moisture content；
Fig. 7 present invention and control are to experimental field organic matter and the influence figure of total nitrogen content；
Fig. 8 three classes of the present invention mainly improve material effect curve figure；
Fig. 9 present invention figure compared with compareing alkali thatch grass growth indexes relative value.
Embodiment
Due to material dosages such as polyacrylamide, " 732 " type cationic ion-exchange resin, the basic element of cell division, auxin very
It is few, in the present invention, without exception using its combined according to aforementioned proportion after use as overall, referred to as trace mineral supplement combination.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Coastal tidal salt affected soil dosage explanation of the present invention
According in coastal tidal, the salt content situation and nutrient content situation of severe beach salinized soil, strand of the invention
Beach saline-alkali soil conditioner, it is 0.6~1kg/ for salt content 2~4g/kg moderate saline-alkali soils dosage during for afforestation
m2, salt content>4g/kg heavy salinized ground dosage is 1.2~1.6kg/m2；During for nonirrigated farmland, its amount of application is according to Different Crop need
Fertile situation is adjusted, and is 0.6~1kg/m for salt content 2~4g/kg moderate saline-alkali soils dosage2, salt content>4g/kg severes
Salt-soda soil dosage is 1.2~1.6kg/m2；During for paddy field, for salt content 2~4g/kg moderate saline-alkali soils dosage be 1.0~
1.5kg/m2, salt content>4g/kg heavy salinized ground dosage is 1.5~2.0kg/m2。
Heterogeneity range of choice and foundation of the present invention：
Screened extensively including charcoal, salicylic acid, glycine betaine, furfural dregs, vinasse, standing grain during experimental design of the present invention
More than 30 materials of the kind with reclamation of salinep-alkali soil effect including health, microbial-bacterial fertilizer etc., from improved effect, financial cost, are easy to get
The many aspects such as degree, the mechanism of improvement carry out integrating textual criticism, finally choose organic fertilizer, humic acid, trace mineral supplement combination cooperation
The modifying agent scheme of urea and Diammonium phosphate (DAP).
The organic fertilizer for addition decomposing microbial inoculum carry out fully it is decomposed, have good C/N than feces of livestock and poultry, C/N than control
System is 25~30：1, quality moisture control is 70%~130%.Feces of livestock and poultry can gather materials on the spot, scientific and reasonable to ensure
C/N ratios, it is necessary to according to the species of feces of livestock and poultry add crushing straw.If selected feces of livestock and poultry is cattle and sheep etc. with forage
For the excrement of the livestock of staple food, crushing straw can be not added with；If selected feces of livestock and poultry is the poultry that the feeds such as pig, chicken are staple food
The excrement of fowl, crushing straw have to add.The decomposing microbial inoculum directly can buy commercial preparation from market, also can directly allocate,
The main component of allotment includes the strains such as saccharomycete, CELLULOLYTIC BACTERIUM, mould, actinomyces.
The organic fertilizer also optional organic commercial fertilizer that is packed in bag.If from packed organic commercial fertilizer, in the formula
Rate of Organic Fertilizer can reduce 25wt.%~50wt.%.
The humic acid is lignite extract, and its humic acid effective content is not less than 50wt.%.
Described trace mineral supplement combination, comprising：Polyacrylamide, " 732 " type cationic ion-exchange resin, cell division
The materials such as element, auxin, its quality proportioning are：Polyacrylamide 60wt.%, " 732 " type cationic ion-exchange resin 30wt.%,
Basic element of cell division 5wt.%, auxin 5wt.%.
Heterogeneity function of the present invention：
The organic fertilizer can provide a large amount of organic matters for soil, there is provided nutrient, culture fertility, be that soil agreegate is formed
With the basis of soil fertility.Meanwhile the multiple-microorganisms such as fungi, actinomyces are have accumulated in organic fertilizer digest process, it is manured into soil
In after, available nitrogen, rapid available phosphorus, amino acid can be provided with compositions such as the cellulose in last decomposition organic fertilizer, humus for plant
Etc. a variety of nutriments.Organic fertilizer is the formation that the organic matter that soil provides can promote soil agreegate, meanwhile, organic fertilizer band
Structure of soil microbial community, improved soil biological attribute can be changed by entering the microorganism of soil.
The humic acid has both sides function, first, after humic acid is manured into soil, can produce largely free H+, in
With the OH in soil-, the pH of soil is reduced, while its abundant functional group can increase the pH shock-absorbing capacities of soil, improve and plant
The growing environment of thing.Second, there is abundant base cation, such as Mg in humic acid2+, NH3 +Deng can displace in soil
Na+, the degree of base saturation of soil is improved, while increase soil to nutrient and the shock-absorbing capacity of salinity.
Trace mineral supplement combination can improved soil physical arrangement, promote the formation of soil granular structure, water conservation is protected
Fertilizer, loosen the soil, promote draining, promote the elution of salt ion.
Described urea and Diammonium phosphate (DAP) are the fertilizer of balance proportioning, and available nutrient can be provided for soil, promotes plant
Grow.
Improve agent prescription dosage primary election：
The dosage of each modifying agent is according to the basic fertility situation and salinity situation of Jiangsu Coastal beach moderate salt-affected soil, ginseng
Document or relevant criterion are examined, topsoil is investigated out and recommends amount of application；
Wherein, each composition recommends the selection standard of amount of application as follows：
The organic fertilizer recommends amount of application：According to northern Suzhou raw-soil farmland (Zhuan Heng is raised, 2000) and North Jiangsu Plain river network
The content of farmland (Di Lin, 2011) nutrient, and《Greening construction technical specification and technical requirements》, select coastal tidal salinized soil
It is 40t/hm that general topsoil, which recommends amount of application,2(every square metre of dosage：4kg/m2)。
The humic acid recommends amount of application：With reference to Sun Jin, Wang Xiaoyang etc., Pan Feng etc., Liu Zuxiang etc. achievement in research, river
Soviet Union beach salty soil on humic acid recommend amount of application be：3t/hm2(every square metre of dosage：0.3kg/m2)。
The trace mineral supplement combined recommendation amount of application：10g/m2。
The urea and Diammonium phosphate (DAP) recommend amount of application：Reference《Greening construction technical specification and technical requirements》, urea
250kg/hm2, Diammonium phosphate (DAP) 500kg/hm2.(every square metre of dosage：Urea is 25g/m2, Diammonium phosphate (DAP) 50g/m2)
With reference to the design principle of fertilizer test " 3414 " conceptual design completely, wherein, 4 horizontal implications：0 level refers to not
Fertilising, 2 levels refer to local recommended fertilizer, 1 horizontal horizontal (referring to excessive fertilization)=2 in level × 0.5,3 of (referring to fertilising deficiency)=2
Horizontal × 1.5.Thus the different graded levels of modifying agent are obtained.
Per microcell saline soil amount of application, (microcell area is 6m to table 12)
Experimental design principle：
The dosage experiment of improvement agent prescription uses orthogonal design, and the orthogonal arrage of selection is L16(45) (its method for expressing and implication
As shown in Figure 1), totally 16 processing.
Orthogonal Experiment and Design is to be arranged and analyzed a kind of design method of multifactorial experiment using orthogonal arrage.It is by trying
Test in whole horizontal combinations of factor, select the representational horizontal combination in part and tested, with as far as possible small part test
To realize the comprehensive test purpose to be reached, optimal horizontal combination is found out.
By taking the horizontal quadrature table of 3 factor 3 as an example, such as Fig. 2,9 testing sites are evenly distributed among in whole cube, are had very strong
Representativeness, can be than more fully reflecting the basic condition in Xuan You areas.
(administration area is with 6m with test combinations corresponding table for the test process code name of table 22Calculate)
Embodiment 1：
Nantong City coastal tidal salt-soda soil, place：The sewage disposal of Nantong City Qidong strand industry park is public
In department；121 ° 50 ' 35.0 of experimental plot geographical position east longitude ", 31 ° 53 ' 48.3 of north latitude ", height above sea level -3.4m are public away from coastline 1.7
In.Shown in its soil property table 3.
The embodiment of the present invention of table 3 experimental field soil property table
Experiment is true according to table 2 using coastal tidal saline-alkali soil conditioner of the present invention, ploughed depth 0-20cm, dosage
It is fixed.Experiment sets 3 repetitions, each repeatedly 6m2(experiment microcell specification 2m × 3m).Long-term cropping species is alkali thatch grass
(Chinampoensis Puccinellia), sowing time are on May 26th, 2013, harvest day are September in 2013 25, growth
122 days phases.And in gathering pedotheque on the same day, air-dried after determining moisture content, different soil are determined after different pore size standard screen
Earth index.
Compare only to add fertility based on urea and Diammonium phosphate (DAP), be not added with planting under conditions of saline-alkali soil modifying agent
Plant.
The present embodiment test plant：
Alkali thatch grass, scientific name：Chinampoensis Puccinellia, grass family bunch type herbaceos perennial, such as scheme
Shown in 3.Spring and summer is sowed, and has the advantages that Salt And Alkali Tolerance, drought-enduring, hygrophilous, cold-resistant and tillering ability are strong.In annual precipitation 400mm
Area is without irrigating；In the case of topsoil soils salt content 1-3%, pH value 9-10, can normally it produce；After plantation 3 years, 0-
100cm soil layer salt rejection rates are up to 60-70%.Energy improved soil, and table soil is fostered and apply fertilizer to a certain extent, improvement salt can be used as
The pionner on alkali ground, and the agriculture good grass seed of grassland establishment on salt-soda soil.
The main improvement material component analysis that this experiment is chosen：
Organic fertilizer
Source：The red soldier in Nantong City cultivates factory
Main component is decomposed wormcast, moisture content 112wt.%.
The organic fertilizer index analysis of table 4
Humic acid
Source：Beijing pine this foreign trade Organic Ingredients wholesaling firm
The humic acid index analysis of table 5
Trace mineral supplement combines
Raw material forms：
Polyacrylamide 60wt.%, " 732 " type cationic ion-exchange resin 30wt.%, basic element of cell division 5wt.%, growth
Plain 5wt.%.
Source：Polyacrylamide derives from Law Firm Suzhou Jiangsu Sheng Yu Trade Co., Ltd.s, and " 732 " type cationic ion-exchange resin comes
Shanghai Shi Feng bio tech ltd, the basic element of cell division and growth potential are come from from the limited public affairs of the general pool science and technology of Beijing Li Yuan
Department.
Urea
Source：Henan Jinkai Chemical Investment Holding Group Co., Ltd.
Leaded wastewater>46.4%
Diammonium phosphate (DAP)
Source：Yunnan Prov Yuntianhua International Chemical Co., Ltd
Leaded wastewater>18%, containing P2O5Amount>46%
Test result analysis：
The interpretation of result of the present invention mainly by improveing the overall merit of situation to alkali thatch grass growing state and soil property,
Reflect the quality of 16 kinds of processing of Orthogonal Experiment and Design, therefrom choose optimization formula, evaluate its refined trabeculectomy to saline-alkali soil.And
By the scientific analysis to orthogonal design, optimum formula of the present invention is obtained, so as to obtain science, effective coastal tidal saline-alkali soil
Earth improves agent prescription.
Alkali thatch grass and the collection of pedotheque and measure are all based on testing the sample of randomly selected 0.5m × 0.5m in microcell
Side.
The alkali thatch grass character comparison sheet of table 6 (in table each data point be 3 determination datas average value ± SE)
Now on the basis of ratio (i.e. relative value) of each processing with control treatment in each index of alkali thatch grass, with reference to being actually needed
In to the attention degree of each index of alkali thatch grass, carry out weight assignment：
The alkali thatch grass relative indicatrix evaluation weight assignment table of table 7
The soil property comparison sheet of table 8 (in table each data point be 3 determination datas average value ± SE)
Now on the basis of ratio (i.e. relative value) of each processing with control treatment in each index of soil property, with reference to actual need
To the attention degree of each index of soil property in wanting, weight assignment is carried out：
The soil property relative indicatrix evaluation weight assignment table of table 9
After alkali thatch grass characteristic index and the difference assignment evaluation of soil property index, both are according still further to 1:1 ratio is carried out
Overall merit, obtain the final appraisal results of following table.
(each data point is putting down for 8 relative datas to the alkali thatch of table 10 grass in table with reclamation result comprehensive evaluation form
Mean value ± SE)
| Test process code name | Alkali thatch grass evaluation | Soil property is evaluated | Final overall merit |
| 1 | 100.0% | 100.0% | 100.0% |
| 2 | 100.0% | 105.0% | 102.5% |
| 3 | 103.1% | 105.3% | 104.2% |
| 4 | 101.8% | 105.6% | 103.7% |
| 5 | 106.5% | 108.0% | 107.2% |
| 6 | 105.8% | 111.5% | 108.7% |
| 7 | 104.0% | 114.1% | 109.0% |
| 8 | 97.7% | 111.8% | 104.7% |
| 9 | 105.0% | 114.4% | 109.7% |
| 10 | 104.3% | 112.4% | 108.3% |
| 11 | 101.6% | 117.3% | 109.4% |
| 12 | 103.0% | 112.8% | 107.9% |
| 13 | 109.1% | 113.4% | 111.2% |
| 14 | 106.2% | 112.9% | 109.5% |
| 15 | 83.1% | 113.6% | 98.4% |
| 16 | 96.6% | 104.2% | 100.4% |
Analyze and know from table, handling 9,13,14 3 processing has preferably performance.
With the organic fertilizer contained by coastal tidal saline-alkali soil conditioner, humic acid, trace mineral supplement combination, urea, phosphoric acid
The compositions such as two ammoniums, 3 kinds of optimization formulas are calculated as by its mass fraction：
Processing 9：4 parts of organic fertilizer, 0.01 part of trace mineral supplement combination, 0.025 part of urea, 0.05 part of Diammonium phosphate (DAP).
Processing 13：6 parts of organic fertilizer, 0.015 part of trace mineral supplement combination, 0.025 part of urea, 0.05 part of Diammonium phosphate (DAP).
Processing 14：6 parts of organic fertilizer, 0.15 part of humic acid, 0.01 part of trace mineral supplement combination, 0.025 part of urea, di(2-ethylhexyl)phosphate
0.05 part of ammonium.
According to final comprehensive evaluation result, using the software analysis of orthogonal design assistant 3.1, obtain 3 classes of the invention and mainly change
The effect curve figure of good material, such as Fig. 8.By Fig. 8 and with reference to the improvement material variety of the invention selected, each improvement of the present invention is obtained
Material optimum amount (Optimization design i.e. of the present invention) is：
4 parts of organic fertilizer, 0.15 part of humic acid, 0.015 part of trace mineral supplement combination, 0.025 part of urea, Diammonium phosphate (DAP) 0.05
Part.
Experiment 1, experiment 2, experiment 3 correspond to present invention processing 9, processing 13 and the formula for handling 14 in analysis below.
Table 11 is using before alkali thatch grass planting under the embodiment of the present invention 1 and control treatment and Later growth 0-20cm topsoil soils
Organic matter contrast (in table each data point be 3 determination datas average value ± SE)
Table 12 is using before alkali thatch grass planting under the embodiment of the present invention 1 and control treatment and Later growth 0-20cm topsoil soils
Full nitrogen contrast (in table each data point be 3 determination datas average value ± SE)
The embodiment of the present invention 1 of table 13 is with compareing improved effect and the lifting effect of the invention than control to original sample ground
The influence of the present invention and control to experimental field salt affected soil property is as shown in FIG. 4,5,6, 7.
From table 13 and Fig. 5,6,7,8, after planting alkali thatch grass using the present invention, experimental field pH is lower by 0.17 than compareing, than
Reduce 0.03, pH, the present invention can effectively reduce experimental field pH with adding sample compared to control original sample.Using this hair
After bright plantation alkali thatch grass, the present invention is to soil EC1:5Reduction it is extremely notable, effect is better than control, compared to control, the present invention
EC to original sample1:5Reduction ratio improves 5.14%.After alkali thatch grass is planted after the present invention, the present invention improves than control
Soil moisture content reaches more than 15.29%, by increasing capacitance it is possible to increase soil water retention, more effectively keeps soil water supply ability.Using this hair
After bright after plantation alkali thatch grass, 33.72% He has been respectively increased than the control soil organism and total nitrogen content of soil in the present invention
23.35%, improve soil nutrient content.
The embodiment of the present invention 1 of table 14 is with compareing the influence to alkali thatch grass growing state
With reference to the present invention to alkali thatch grass growth overall target facilitation, as shown in table 14, the present invention compared with the control,
Final survival rate improves 12.11%, and 2.60% and 2.97% has been respectively increased in overground part fresh weight and Dry matter weight of shoot, surely
Singling height improves 9.40%.The relative value of each index of alkali thatch grass of the present invention is calculated on the basis of control, map to obtain Fig. 9, by Fig. 9
With table 14, it is known that the present invention greatly improves the growing state of alkali thatch grass.
Synthesis shows that the present invention can effectively improve coastal tidal salt-affected soil property, can promote the growth of plant.
Claims (8)
- A kind of 1. coastal tidal saline-alkali soil conditioner, it is characterised in that the plantation careless for alkali thatch, in mass ratio：It is organic Fertilizer is 2 ~ 6 parts, humic acid is 0 ~ 0.45 part, trace mineral supplement be combined as 0.005 ~ 0.015 part, urea be 0.025 part, di(2-ethylhexyl)phosphate Ammonium is 0.050 part；The trace mineral supplement combination includes：Polyacrylamide, " 732 " type cationic ion-exchange resin, cell division Element, auxin, its quality proportioning are：Polyacrylamide 60%, " 732 " type cationic ion-exchange resin 30%, the basic element of cell division 5%, life Long element 5%.
- 2. coastal tidal saline-alkali soil conditioner according to claim 1, it is characterised in that：Component includes organic fertilizer, humic Acid, trace mineral supplement combination, urea, Diammonium phosphate (DAP), are calculated as by its mass fraction：4 parts of organic fertilizer, 0.15 part of humic acid are micro 0.015 part of additive combination, 0.025 part of urea, 0.05 part of Diammonium phosphate (DAP).
- 3. coastal tidal saline-alkali soil conditioner according to claim 1, it is characterised in that：Component includes organic fertilizer, micro Additive combination, urea, Diammonium phosphate (DAP), are calculated as by its mass fraction：4 parts of organic fertilizer, trace mineral supplement combine 0.01 part, urea 0.025 part, 0.05 part of Diammonium phosphate (DAP).
- 4. coastal tidal saline-alkali soil conditioner according to claim 1, it is characterised in that：Component includes organic fertilizer, micro Additive combination, urea, Diammonium phosphate (DAP), are calculated as by its mass fraction：6 parts of organic fertilizer, trace mineral supplement combine 0.015 part, urine 0.025 part of element, 0.05 part of Diammonium phosphate (DAP).
- 5. coastal tidal saline-alkali soil conditioner according to claim 1, it is characterised in that：Component includes organic fertilizer, humic Acid, trace mineral supplement combination, urea, Diammonium phosphate (DAP), are calculated as by its mass fraction：6 parts of organic fertilizer, 0.15 part of humic acid are micro 0.01 part of additive combination, 0.025 part of urea, 0.05 part of Diammonium phosphate (DAP).
- 6. according to any coastal tidal saline-alkali soil conditioner of claim 1 ~ 5, it is characterised in that：The organic fertilizer is to add Add decomposing microbial inoculum carry out fully it is decomposed, have good C/N than feces of livestock and poultry, C/N than control 25 ~ 30:1, moisture control In 70wt.% ~ 130wt.%.
- 7. according to any coastal tidal saline-alkali soil conditioner of claim 1 ~ 5, it is characterised in that：The humic acid is brown Coal extract, its humic acid effective content are not less than 50 wt.%.
- 8. the application of any coastal tidal saline-alkali soil conditioner of Claims 1 to 5, it is characterised in that for afforestation When, it is 0.6 ~ 1 kg/ m for the g/kg moderate saline-alkali soils dosage of salt content 2 ~ 42, salt content>4 g/kg are used heavy salinizedly Measure as 1.2 ~ 1.6 kg/ m2；It is 0.6 ~ 1 kg/ m for the g/kg moderate saline-alkali soils dosage of salt content 2 ~ 4 during for nonirrigated farmland2, Salt content>4 g/kg heavy salinized ground dosages are 1.2 ~ 1.6 kg/ m2；During for paddy field, in the g/kg of salt content 2 ~ 4 Degree salt-soda soil dosage is 1.0 ~ 1.5 kg/ m2, salt content>4 g/kg heavy salinized ground dosages are 1.5 ~ 2.0 kg/ m2。
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| CN110041149A (en) * | 2019-04-21 | 2019-07-23 | 乐清市华尊电气有限公司 | A kind of salt-soda soil soil-repairing agent and preparation method thereof |
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| CN112723959A (en) * | 2021-03-12 | 2021-04-30 | 南京朴厚生态科技有限公司 | Coastal beach saline-alkali soil conditioner and preparation process thereof |
| CN113024309B (en) * | 2021-04-02 | 2022-10-04 | 河北省农林科学院滨海农业研究所 | Low-cost green environment-friendly coastal heavy saline-alkali soil improver and application method thereof |
| CN117105732A (en) * | 2023-08-23 | 2023-11-24 | 陕西扬晨新材料科技有限公司 | Multifunctional complexing agent for improving and treating saline-alkali soil and application thereof |
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