CN102732255A - Soil improved composition and method for improving soil - Google Patents
Soil improved composition and method for improving soil Download PDFInfo
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- CN102732255A CN102732255A CN2012102115848A CN201210211584A CN102732255A CN 102732255 A CN102732255 A CN 102732255A CN 2012102115848 A CN2012102115848 A CN 2012102115848A CN 201210211584 A CN201210211584 A CN 201210211584A CN 102732255 A CN102732255 A CN 102732255A
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Abstract
The invention relates to a soil improved composition and a method for improving soil, which belongs to the soil improvement field. The soil improved composition and the method for improving soil are provided for overcoming the shortages of uncontinuous greening effect on the slopes and high cost in the present greening technology. The soil improved composition comprises an organic matter, azotobacter flora, organism decomposed flora and acidic soil flora capable of promoting decomposition of rock, and enables good improvement of the soil, thereby the plant grown on the slopes can be deeply inserted in the rock, and the slope greening landscapes can be improved and the landslide can be prevented; the soil improvement method comprises the following steps: mixing the main soil and the soil improved composition, and planting herbaceous plants or woody plants in the mixed soil. The method of the invention can effectively improve the fertility of barren soil, and the soil improvement method is suitable for popularization and application in the slope greening process.
Description
Technical field
The invention belongs to the soil improvement field, relate to the method for a kind of soil improvement composition and soil improvement.
Background technology
Along with the fast development and the quickening of urbanization process of economic society, the infrastructure construction speed of China is also accelerated thereupon, has formed a large amount of exposed domatic because of implementing construction projects such as traffic, water conservancy, mine, electric power.These expose the domatic ecotope views that not only influenced, and have destroyed the balance of nature of this area, and some domatic serious geologic hazards hidden danger that also exists, and influence the safety and stability of main construction, even the safety of life and property that can endanger the people.Therefore, greening side slope has crucial environment protection significance and realistic meaning, and greening side slope not only can be beautified the environment, water conservation, and can prevent erosion and come down, purify air.Greening side slope is carried out in existing at present a lot of local beginning energetically.
To geotechnical slope and native horsestone side slope, traditional improvement method generally adopts the Three-Dimensional Network Seeding technology.The Three-Dimensional Network Seeding technology is through 3D grid being set and grass planting in grid domatic under the exposed prerequisite of side slope; Plant relies on flourishing root system with domatic fixing behind the plant recovery; Aging and degraded along with three dimensional network simultaneously can make plant and domatic mortise more, thereby reaches a kind of greening technique of plant protection function.But facts have proved that this type side slope adopts the Three-Dimensional Network Seeding technology owing to can't change domatic edaphic condition because soil condition is relatively poor, the plant mortality ratio is high, can not reach good greening and broken face protection effect.People then seek more effective more succinct greening technique, the technology of sowing grass seeds by duster in recent years develops gradually in the afforestation project at home and comes.
The technology of sowing grass seeds by duster is a kind of geotechnical slope that rate of decay is higher and new technique of native horsestone greening side slope of being applicable to, it is specially adapted to the slope protection greening of road and rail, railway, river course side slope.It utilize special spraying machine with organic substrates such as grass seeds, water-holding agent be ejected into domatic on, organic material under the effect of pressure with domatic combining closely, form the hypothallus that one deck can supply growth and development of plants.Sow grass seeds by duster to the requirement of thickness of soil, decide, be generally 10-30cm according to the particular case of side slope.In injection, must add grass seeds such as Bermuda grass, Festuca Arundinacea, false indigo, reach the ideal afforestation effect in the short period of time.Alien earth sparging be the most common also be the most widely used technology of sowing grass seeds by duster
Alien earth sparging be with the substrate material mixing consolidating material spray that contains the plant-growth desired nutritional be attached to batholith domatic on; On batholith is domatic, create the hardness that is suitable for plant-growth, firmly and ventilative, with show the near native plate of the soil phase naturally; But plant out the plant community of low level management, farthest restore nature is ecological.If decayed rack, less soft rock and the bigger soil side slope of soil hardness of soil; Big for the gradient; The domatic worker who uses for reference anchor pole reinforcing bar spray anchor that stone matter is in blocks; After playing anchor pole, rack plating zinc-iron net, sow grass seeds by duster again, can reach the purpose of afforesting and beautifying equally, Jiangxi, Zhejiang line railway ecology is protected, Fujian spring three high speeds etc. all adopted fixedly spraying and seeding afforesting technology of anchor pole in stone matter side slope protection.
Also there is distinct disadvantage in alien earth sparging; At first the formation of soil moved in to improve the original realizes at the domatic soil moved in to improve the original of spraying of rock through adopting spray to plant to be equipped with (can replace with spouting plant) in the alien earth sparging process, thereby it wants much high with Three-Dimensional Network Seeding compared with techniques cost.Secondly, though alien earth sparging can improve side slope soil condition and water and fertilizer condition in a short time through transplanting soil moved in to improve the original, sow grass seeds by duster internal component and the structure or the like of thing of alien earth sparging method differs greatly with natural vegetable mould; Soil moved in to improve the original wherein adds chemical fertilizer and grass seeds etc. and can germinate in 1 year, but does not continue vitality, does not have the soil generation inside and outside the layer of sowing grass seeds by duster; Root system just be suspended in rock above; The construction tectum will be withered gradually along with the disappearance of nutrient, peel off, and the result of alien earth sparging greening generally is exactly " 1 year green; 2 years Huangs, 3 years death ray ".Thereby alien earth sparging can not realize the long-term greening of side slope, and wasted fund input and lot of manpower and material resources.
The tradition grass planting of sowing grass seeds by duster is difficult to produce a desired effect with the simple three dimensional network technology of sowing grass seeds by duster, and therefore seeking effective continuable greening technique becomes the significant problem that present greening side slope faces.Patented claim 01104199.4 discloses a kind of through the fixing domatic and greening side slope technology of smearing soil paste through the shotcrete machine spray of fixing short U-shaped steel nail; This technological operation is simple; Cost reduces; But the layer that gushs when using this technology to carry out greening side slope is easily from main soil layer landing, and this technology can not reach side slope and continue afforestation effect.Patent 200710053060.X realizes that through rich soil layer of gentle slope belt and backwater ditch are set the water storage function realizes the purpose of greening side slope on high precipitous rock slope; This technology can effectively prevent to gush layer from the side slope landing and have the irrigation advantage; But it is should the technology cost higher; And, can not realize continuable long-term afforestation effect because soil property is not improved.The present invention is intended to lead native soilization through providing a kind of soil improvement composition to make, thereby reaches the continuable afforestation effect of long-term slope.
Summary of the invention
Can not play continuable afforestation effect to side slope in order to overcome existing greening technique, and the prior art that involves great expense is not enough, the present invention provides a kind of novel soil improvement composition and the method for improving the soil.This soil improvement method mainly is applicable to rock protecting slope ecology engineerings such as highway, railway and stone quarry; On soil conservation and environmental construction field, have wide technical application prospect, the rapidity of its ecological management, feasibility, perspectively will produce far-reaching influence domestic stone matter protecting slope ecology aspect.
In order to make those skilled in the art better understand the present invention, the contriver special will term definition involved in the present invention or elaboration as follows, the explanation of related this type of term all should be with reference to give a definition among the application.
1, soil moved in to improve the original
Soil moved in to improve the original be meant non-locality primary, be used to replace the nonlocal soil of sedendary soil by the other places in-migration, typically refer to loam of good quality (silty loam) or artificial soil.The soil moved in to improve the original of these conditions is satisfied in making, and it is not enough only relying on natural soils, also needs artificial other materials that add.In natural soils other materials that should add be: 1) filamentary material, can increase the organic content of soil moved in to improve the original, can prevent that again soil particle is scattered; 2) all kinds of fertilizer (inorganic fertilizer and fertilizer) provide plant-growth desired nutritional element; 3) soil improvement agent (like water-holding agent, tackiness agent and soil stabilizer) improves the soil moved in to improve the original water-retentivity, strengthens crumb structure and stability.
2, water-loss reducer of soil
Water-loss reducer of soil is exactly the agricultural water-holding agents, is known as the miniature reservoir of plant, is a kind of organic high molecular polymer of unique tridimensional network.In soil, or watering rainwater pours water absorbs rapidly and keeps, and does not ooze mistake, and then guarantees that rhizosphere scope moisture content is sufficient, slowly discharges and supply plant utilization.Its distinctive suction, water storage, water retention property play the effect of decision success or failure in the engineering of improving the ecological environment, check winds and fix drifting sand.Be widely used in fields such as desertification of land improvement, farm-forestry crop plantation, afforestation.Dwindle after after is released water because of its particle absorbs water, can make soil form a vesicular structure, soft ventilative, both guaranteed the plant demand, can increase the retention ability of the permeability and the sandy soil of clay again.
3, nitrogen fixation flora
The bacterium thalline of nitrogen fixation flora is generally shaft-like, ovum circle or spherical, no endogenous spore; Gram-negative (positive and negative are all right one way or the other sometimes); Strict aerobic, organotrophy type bacterium can utilize simple carbohydrate to be the carbon source and the energy, and what have can utilize starch, but can not utilize Mierocrystalline cellulose.Nitrogen fixation flora can turn to the molecular nitrogen cyclostrophic in the atmosphere ammonia that farm crop can utilize, and then for it fertilizer of the necessary nitrogen nutrition of synthetic protein is provided.This quasi-microorganism spontaneous or and plant symbiosis, it turns to the process of the absorbable ammonia of farm crop with the molecular nitrogen cyclostrophic in the atmosphere, is called biological nitrogen fixation.Common representative bacterial classification in the nitrogen fixation flora such as root nodule bacterium, azotobacter chroococcum.
4, peat soil
Peat soil (peat soil) is meant that in some river lake deposit low plain and intermountain valley floor because long-term ponding, aquatic vegetation is dense, under anaerobic conditions, decomposes the soil of inadequate plant residue accumulation and formation peat bed in a large number.Peatlands can be divided into sphagnum peat ground and marsh peat ground, and the key distinction of these two types of peatlands is the condition difference that peatlands forms.Cumulosol organic content Wu is generally 10% < Wu≤60%, and color is dark-grey or black, and stench flavor is arranged, and can see the plant structure that does not decompose fully, the immersion cubical expansion, and easy disintegrating has plant residue to float in the water, and the drying shrinkage phenomenon is obvious.
One of the object of the invention provides a kind of soil improvement composition, contains organism and soil microorganisms in the soil improvement composition according to the invention, and said organism is preferably peat soil, cow dung or other biological fertilizer.Said soil microorganisms comprises that at least nitrogen fixation flora, organism decompose flora and promote the acid soil flora that rock decomposes; Wherein nitrogen fixation flora can provide plant nutrition; Organism decomposes flora can participate in such as leaf, carcase in interior organic decomposition, and the acid soil flora can promote the decomposition of rock, contains a large amount of trace elements in the rock; These trace elements can be led native soil property and vegetation growth state thereby improve by plant absorbing.This three major types mikrobe is cooperated each other, to strengthening soil fertility, promotes the soil process of peripheral soil to play the obvious synergistic effect.
In the above-mentioned described soil improvement composition, said soil microorganisms is for through the micropopulation of enrichment culture, and wherein the enrichment medium of nitrogen fixation flora can be: Ashby nitrogen-free agar (enrichment azotobacter with) N.F,USP MANNITOL 1%, KH
2PO
40.02%, MgSO
47H
2O 0.02%, and NaCl 0.02%, CaSO
42H
2O 0.01%, CaCO
30.5%.
The mycorhiza bacterium of fungi and plant symbiosis in some soil, they play an important role to afforestation.Soil fungi is also participated in the decomposition of the residual body of animal and plant, becomes nitrogen in the soil, the indispensable power of carbon cycle, the commitment that particularly decomposes at plant organism, and fungi is more more active than bacterium and actinomycetes.Fungi breeds in a large number in the soil improvement prescription in order to make; Fungi in the soil is carried out enrichment culture; Its medium component can be selected suitable fungi enrichment medium for use according to bacterial classification separation, and the enrichment medium of soil fungi is preferably the Martin substratum among the present invention: glucose 1%, peptone 0.5%; KH2PO4 0.1%, MgSO
47H
2O 0.05%, agar 2%, rose-bengal 1,/30,000, Streptomycin sulphate 30 μ g/ml, duomycin 2 μ g/ml.
Acid soil bacterium in the soil prescription according to the invention can be decomposed rock, to plant-growth a large amount of trace elements is provided, and it can make plant-growth in rock and with rock, become one and play important effect.It is the Gao Shi substratum that acid soil bacterium of the present invention is mainly actinomycetic enrichment medium, and its component is: Zulkovsky starch 2g, KNO
30.1g, K
2HPO
40.05g, MgSO
47H
2O 0.05g, NaCl 0.05g, FeSO
47H
2O 0.001g (mother liquor), agar 2g, tap water 100mL, pH7.2～7.4.
After the above-mentioned soil flora enrichment culture, nutrient solution promptly gets thalline through concentrating after centrifugal, thalline through natural air drying get final product the exsiccant thalline, among the present invention in the soil improvement composition thalline weight be dry cell weight.The inventor declares at this simultaneously; Above-mentioned soil flora enrichment medium is not unique substratum of these floras of enrichment culture; Those skilled in the art can rationally determine other substratum on the cited medium base of the present invention or on the basis of the cited substratum of prior art; As long as its enrichment flora is identical with the present invention, all belong to the scope of soil flora according to the invention.The compound method of the enrichment medium of above-mentioned soil flora is common practise for a person skilled in the art.
Can also contain sand in the above-mentioned soil improvement composition, other compositions mix said sand in back and the soil improvement composition for the nature sand is pulverized.The inventor is behind process deep proportion research and soil impact testing; Find when in the above-mentioned association of soil thing during the following proportioning of component; Its improving effect to soil is best: sand 10-20%; Organism 50-75%, acid soil flora 2-10%, organism decompose flora 5%-25% and nitrogen fixation flora 7%-25%.Further be preferably the association of soil thing that contains following weight part: sand 20%, organism 55%, acid soil flora 5%, organism decomposes flora 9%, nitrogen fixation flora 11%.
Two of the object of the invention provides a kind of soil improvement method; Thereby this soil improvement method is to utilize the organism in the above-mentioned said soil improvement composition of the present invention to make soil microorganisms wherein breed katabolism main soil on every side in a large number, and finally realizes a kind of soil improvement method of target master soil soilization.This soil improvement method is applicable to the fertility transformation of main native dead soil, and the main land reform that is particularly useful for rock, desert, poor and barren land, stone quarry is good.
Soil improvement method of the present invention has utilized the metabolism of soil microorganisms in the soil improvement composition, and therefore soil improvement method according to the invention comprises the step that in described master's soil, adds soil improvement composition according to the invention and after mixing, plant draft or xylophyta in the soil.In the above-mentioned soil improvement method, the concrete fertility of blending ratio visual object soil of said soil improvement composition and target soil and deciding, the weight proportion that is preferably main soil and soil improvement composition is 1:0.5-2.
For a large amount of breedings that make the suitable nitrogen fixation flora of the environment that mixes in the back association of soil thing, organism decompose flora and acid soil flora, the pH that mixes back soil in the soil improvement method of the present invention is preferably 2.0-5.0, further is preferably 2.5-4.0.The adopting international standards of measuring method of wherein mixing the pH of back soil is organized in the method described in " mensuration of ISO 10390:2005 soil quality pH " issued on February 15th, 2005 and measures, and existing plain statement is following: 1) pre-treatment.Take a morsel pedotheque particle natural air drying or pedotheque is not higher than 40 ℃ drying treatment after, the soil processing of sieving, the screen cloth eye is of a size of 2 mm.2) preparation of suspension liquid is got the representational laboratory sample of sub-fraction (sample should be no less than 5 mL) with the sample spoon.The sample of getting is put into sample bottle, and add 5 times of water (specific conductivity is not more than 0.2 mS/m 25 ℃ the time, and pH is greater than 5.6) or Repone K or calcium chloride solution to sample volume.Continue to shake suspension liquid (60 ± 10) min, use mechnical oscillator or mixing tank, leave standstill then more than 1 h, but can not surpass 3 h.During leaving standstill after the vibration, should avoid the air admission sample bottle.3) measurement of pH is measured pH immediately in suspension liquid when stirring beginning under (20 ± 2) ℃ condition, and stirring velocity is selected soil particle can be evenly distributed in the suspension liquid relatively, but can not entrapped air.Can read when the pH value reaches when stablizing, record value is accurate to two behind the radix point.
Soil improvement composition of the present invention and the technology of utilizing this soil improvement composition to carry out soil improvement, it compared with prior art has following technical superiority:
1) soil improvement technology of the present invention is owing to adopted soil improvement composition, and it can make main native soilization.This technology is different from traditional soil moved in to improve the original technology of gushing, and it has regeneration to soil and non-traditional substituting; Reproducing plant can draw nourishment from from weathered rock and air automatically, and does not need fertilizer irrigation.
2) reproduce plant in the soil improvement technology of the present invention and irritate tall grass seed mix for grass, it can realize symbiosis to a certain extent, is superior to the traditional soil moved in to improve the original soil moved in to improve the original of the grass-seed Ensure Liquid layer in technology technology of gushing of gushing.
3) in the soil improvement technology of the present invention, the soil because soil improvement composition can be regenerated, grass are irritated tall root system and are goed deep into basement rock rapidly, combine together fully with periphery, and for area more than the annual precipitation 400mm, the maintenance cost is low.
Embodiment
Followingly further specify content of the present invention for the ease of it will be appreciated by those skilled in the art that, but the present invention is not limited only to following examples through specific embodiment.Those skilled in the art can use for reference this paper content, suitably improve or adjust content of the present invention and can realize.Special needs to be pointed out is that all are similarly replaced and change, to those skilled in the art, is conspicuous, and they all are regarded as and comprise within the scope of the present invention.
Embodiment 1 soil improvement composition according to the invention
Form: 20 parts of sands, 55 parts of organism (cow dung), 5 parts of acid soil floras, organism decomposes 9 parts of floras, 11 parts of nitrogen fixation floras.
Preparation technology: sand and organism were processed into fine particle during use soil kibbler will be write out a prescription; Particle diameter is not more than 1cm; The sand particle and the 550kg organic particle that take by weighing 200kg place premix machine mixing 30min, behind premix, add acid soil flora powder 50kg, organism decomposer cluster powder 90kg and nitrogen fixation flora powder 110kg in the soil mixture and can obtain soil improvement composition according to the invention.
Embodiment 2 soil improvement compositions according to the invention
Form: 10 parts of sands, 75 parts of organism (peat soil), 2 parts of acid soil floras, organism decomposes 15 parts of floras, 7 parts of nitrogen fixation floras.
Preparation technology: with preparation technology among the embodiment 1.
Embodiment 3 soil improvement compositions according to the invention
Form: 10 parts of sands, 60 parts of organism (peat soil), 10 parts of acid soil floras, organism decomposes 8 parts of floras, 10 parts of nitrogen fixation floras.
Preparation technology: with preparation technology among the embodiment 1.
Embodiment 4 soil improvement compositions according to the invention
Form: 70 parts of organism (peat soil and cow dung mixture), 5 parts of acid soil floras, organism decomposes 17.5 parts of floras, 8.5 parts of nitrogen fixation floras.
Preparation technology: with preparation technology among the embodiment 1.
Test Example 1 soil improvement composition of the present invention is to the influence of soil fertility
Adopting PCA to estimate the soil fertility in the different time sections, is the analytical procedure of this Test Example.Wherein, principal component analysis is claimed in principle component analysis again, is meant a kind of multiviate statistical analysis method that a plurality of variablees of primary is extracted less several new variables independent of each other through linear combination.The purpose of principle component analysis is through linear transformation, original a plurality of indexs is combined into separate a few can fully reflects the index of overall information, is convenient to further analysis.In principle component analysis, can eliminate influencing each other between evaluation index.Each principal constituent is arranged in order by the variance size.When problem analysis, can give up a part of principal constituent, the bigger several principal constituents of variance are represented former variable before and after only getting, and can also reduce the workload that index is selected, thereby have reduced the workload of calculating.Fertility evaluation is an important means of obtaining the land quality situation, is again important basic work in agricultural development and the Land use planning, can be soil utilization rationally scientific basis is provided.
1.1 sampling and analysis
Be after handle on 2008 6 lunar rock slopes sample time.Sampling method is the grid method of layouting, and per 500 m get 1 point, as runs into then sampling nearby of obstacle.Take 5 point samplings to fetch earth, mix, the processing etc. of sieving.The mensuration of pedotheque pH value adopts 2.5:1.0 flooding potential method; Organic (OM) Determination on content adopts K
2Cr
20
7Volumetry; Available nitrogen (AN) Determination on content adopts the alkaline hydrolysis diffusion process; Available phosphorus (AP) Determination on content adopts the Olsen method; Effectively potassium (AK) Determination on content adopts ammonium acetate lixiviate flame photometry; Full nitrogen (TN) Determination on content adopts the semimicro nitrogen determination; Full phosphorus (TP) Determination on content adopts molybdenum antimony resistance colorimetric method; Slowly available potassium (SK) Determination on content adopts flame photometry.
1.2 data processing
Excel 2007 is used in data preparation, and data computation is used SPSSl7.0.Data normalization is used Analyze---Descriptive Statistics----DescriptiVOS, the computing application Analyze_Data Reduction_Factor Analysis of correlation matrix, eigenwert and proper vector, principal component scores.
1.3 result and analysis
1.3.1 fertility index analytical results
Choose soil TN, TP, 0M, AP, AK, SK, pH value, CEC totally 8 fertility factors as the evaluation index of principle component analysis; Each handles total nitrogen content is 0.65-1.24g/kg; Content of tatal phosphorus is 0.12 one 0.34g/kg, and organic content is 6.00-41.80 g/kg, and available phosphorus contents is 0.10-68.90 mg/kg; Quick-acting potassium content is 21.10-255.90 mg/kg; Slowly available potassium content 15.40-l539.70 mg/kg, pH value scope is 4.93-7.95, cation exchange capacity content is 0.40-31.20 cmol/kg.Concrete measured value is as follows:
Is that the factor of index screening principle component analysis is according to the principal constituent eigenwert with contribution rate with the accumulation contribution rate>1 principle, extracted 4 principal constituents.Can learn that according to variance master composition extraction and analysis the 1-4 principal constituent reaches 85.7% for the contribution rate sum of population variance, promptly preceding 3 principal constituents can provide the whole indexs of soil 85.7% of information to reflect.Therefore, it is reliable utilizing principle component analysis rice soil fertility quality.
1.3.2 adopt soil improvement method changes of soil fertility according to the invention
Adopt modification method according to the invention to carry out soil improvement: (wherein sand is 20 parts for the soil improvement composition among the embodiment 1 of consisting of of the employed soil improvement composition of this Test Example; 55 parts of organism; 5 parts of acid soil floras, organism decomposes 9 parts of floras, 11 parts of nitrogen fixation floras).Employed organism is a cow dung; Said per-cent is weight percentage; Get the main soil in rock slope and mix by weight 1:1 with above-mentioned soil improvement composition by main soil, mixed soil is covered in the Yan Po top layer, thickness of soil is 10cm; Plantation greening herbaceous plant seeds in above-mentioned soil cover; Like the tuber of dwarf lilyturf, the blue 3 kinds of cover plants of and Flos Carthami Herba Oxalidis Corniculatae of green onion and alta fascue, English grass, rye grass and Bai Sanye etc., first three months is every irrigates once at a distance from first quarter moon, and the watering period changes one month into after three months.Mensuration soil fertility immediately regularly fetches earth.
According to the experiment of above determined PCA mensuration soil fertility, get above-mentioned 4 indexs of pedotheque in the interior rock slope of different time sections respectively.Be every at a distance from 6 months the sample time in the present embodiment, and sampling method is the grid method of layouting, and per 500 m get 1 point, as run into obstacle and then take a sample nearby.Take 5 point samplings to fetch earth, mix, the processing etc. of sieving.The index of each sub-sampling sample is got its MV, representes with the mode of x ± s.It is as shown in the table that each, sample index measured the result sample time:
| Sample time | TN（g／kg） | TP（g／kg） | OM（g／kg） | AP（mg／kg） |
| 0 month | 1.05±0.24 | 0.28±0.15 | 18.24±6.34 | 8.78±2.36 |
| 6 months | 1.26±0.21 | 0.30±0.13 | 24.65±5.34 | 9.03±1.98 |
| 12 months | 1.42±0.23 | 0.34±0.16 | 36.24±7.68 | 11.34±3.67 |
| 18 months | 1.56±0.28 | 0.42±0.18 | 37.25±6.58 | 11.65±2.69 |
| 24 months | 1.87±0.31 | 0.45±0.21 | 45.67±6.69 | 13.24±3.21 |
| 30 months | 2.65±0.34 | 0.67±0.19 | 62.24±8.73 | 17.68±3.16 |
Can find out by last table; Adopt behind the soil improvement method that main soil of the present invention sows grass seeds by duster in 0-30 month; Four leading indicators that influence soil fertility are all progressively improved; Wherein each index of 30th month soil fertility soil each index preceding with using soil improvement method of the present invention has significant difference, the fertility of pointing out soil improvement method of the present invention can significantly improve soil, and the growth of plant and the improvement of soil property can be complemented each other.
Claims (6)
1. a soil improvement composition is characterized in that it comprises organism and soil microorganisms, and said soil microorganisms decomposes flora by nitrogen fixation flora, organism and the acid soil flora is formed.
2. soil improvement composition as claimed in claim 1 is characterized in that said soil improvement composition can also contain sand.
3. soil improvement composition as claimed in claim 2; It is characterized in that described soil improvement composition is made up of following components in weight percentage content: sand 10-20%; Organism 50-75%, acid soil flora 2-10%, organism decomposes flora 5%-25% and nitrogen fixation flora 7%-25%.
4. soil improvement composition as claimed in claim 3 is characterized in that described soil improvement composition is made up of following components in weight percentage content:: sand 20%, organism 55%, acid soil flora 5%, organism decomposes flora 9%, nitrogen fixation flora 11%.
5. soil improvement composition as claimed in claim 3, the enrichment medium that it is characterized in that acid soil flora in the soil improvement composition is the Gao Shi substratum; The enrichment medium that organism decomposes flora is the Martin substratum; The enrichment medium of nitrogen fixation flora is the Ashby nitrogen-free agar.
6. the method for a soil improvement, it comprises main soil mixed with the arbitrary said soil improvement composition of claim 1-7 and is incorporated in the step of planting herbage or xylophyta in the mixed mixed soil that the pH of described mixed soil is 2.5-4.0.
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| CN114582439A (en) * | 2022-03-10 | 2022-06-03 | 北京国垦节水科技有限公司 | Soil saline-alkali soil conditioner screening method and system based on application scene |
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| CN103004319A (en) * | 2012-12-18 | 2013-04-03 | 上海老港固废综合开发有限公司 | Soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards |
| CN103435420A (en) * | 2013-08-28 | 2013-12-11 | 攀枝花市西佛寺景区投资开发有限公司 | Nutritional soil for vegetation cultivation of karst landform |
| CN104264658A (en) * | 2014-10-17 | 2015-01-07 | 中国科学院新疆生态与地理研究所 | Novel method for Actinomycesnaeslundii sand stabilization |
| CN104264658B (en) * | 2014-10-17 | 2016-03-16 | 中国科学院新疆生态与地理研究所 | A kind of method that actinomyces are fixed the sand |
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| CN107580819A (en) * | 2017-08-31 | 2018-01-16 | 广东省生态环境技术研究所 | A kind of method of newly-ploughed crop corn field arable layer rapid build |
| CN107580819B (en) * | 2017-08-31 | 2021-05-04 | 广东省生态环境技术研究所 | Method for quickly constructing newly reclaimed paddy field plough layer |
| CN109197007A (en) * | 2018-08-10 | 2019-01-15 | 西北师范大学 | Utilize high molecular material-biological material-planting comprehensive improvement sand ground method |
| CN110521323A (en) * | 2019-09-29 | 2019-12-03 | 南京林业大学 | A method of locust tree of sowing grass seeds by duster on the exposed palisades of shale is efficiently replied immediately green fastly and improves soil pH value |
| CN110521323B (en) * | 2019-09-29 | 2022-02-01 | 南京林业大学 | Method for efficiently and quickly spraying locust trees on exposed shale rock wall to restore green and improve soil pH value |
| CN111788896A (en) * | 2020-07-15 | 2020-10-20 | 上海市园林科学规划研究院 | Rapid curing method for backfilling greening soil of urban relocation land and backfilling method |
| CN114582439A (en) * | 2022-03-10 | 2022-06-03 | 北京国垦节水科技有限公司 | Soil saline-alkali soil conditioner screening method and system based on application scene |
| CN114582439B (en) * | 2022-03-10 | 2022-11-04 | 新疆楚强生物科技有限公司 | Application scene-based soil saline-alkali soil conditioner screening method and system |
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