CN109047308A - A kind of restorative procedure of cadmium pollution soil - Google Patents
A kind of restorative procedure of cadmium pollution soil Download PDFInfo
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- CN109047308A CN109047308A CN201810907344.9A CN201810907344A CN109047308A CN 109047308 A CN109047308 A CN 109047308A CN 201810907344 A CN201810907344 A CN 201810907344A CN 109047308 A CN109047308 A CN 109047308A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
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Abstract
The present invention relates to a kind of restorative procedures of cadmium pollution soil.Cd-hyperaccumulator S.plumbizincicola is planted in the soil of heavy metal cadmium by ridge culture cuttage mode, by intercropping by annual medicinal herb plant and cadmium enriching plant-Bidens bipinnata grass planting in S.plumbizincicola periphery；Make full use of two kinds of plants in plant type height, rich light and resistance to shady, the deep differences of Physiological such as root and shallow root, utilize their breeding times and spatial diversity during the growth process, make to form two kinds of crop upper layer and lower layer intersection patterns of farming between rationally, preferable Shade effect is provided for S.plumbizincicola, and realizes joint repairing effect.The present invention can effectively solve the problems, such as the safe production in summer of S.plumbizincicola, improve repairing effect, while bringing certain economic value.Technology mode space utilization rate disclosed by the invention is high, repairing effect is reliable, easy to operate and economic and environment-friendly, and application prospect is preferable, is particularly suitable for the reparation practice of different degrees of heavy metal cadmium agricultural land soil.
Description
Technical field
The present invention relates to a kind of restorative procedures of cadmium pollution soil, belong to the phytoremediation technology neck of heavy metal pollution of soil
Domain.
Background technique
The bio-toxicity of cadmium is extremely strong, and migration is active in the environment, is easily enriched with and is detrimental to health by food chain etc., is
Environment and most threatening one of the heavy metal element of human health.China Cd contaminated soil area is continuously increased in recent years.2014
In year national Investigation of Soil Pollution, cadmium comes out at the top to the pollution of soil, and pollution level shows as cadmium > lead > zinc.Cd is for people
Body is easy to be enriched in vivo by food chain, is finally absorbed by the body and damages there are apparent health risk.
The major technique of heavy metal pollution of soil reparation has peripheral doses, chemical remediation and biological prosthetic etc..Wherein, plant
Reparation is to be mentioned according to plant is tolerable or ultraproduct tires out the characteristics of certain specific compounds using green plants and its symbiotic microorganism
Take, shift, absorbing, decomposing, converting or fixing soil in inorganic pollution, pollutant is removed from soil, to reach
The purpose of removing, cut down or stablize pollutant, or reducing pollutant toxicity.Compared with other technologies, plant extract is a kind of phase
To mild in-situ techniques, soil cadmium content can be fundamentally reduced, and few to soil disturbance, be particularly suitable for middle and high concentration
The original position of the middle or short term (in 3 years) of heavy metal pollution fallow ground, completeness are administered.
A kind of super enriching plant of the S.plumbizincicola as cadmium, value is widely applied in tool in terms of Cadmium Pollution in Soils reparation.But
S.plumbizincicola faces safe production in summer problem, significantly increases its difficulty in engineer application.Traditional capping sunshade net method
Although the problem of capable of alleviating S.plumbizincicola safe production in summer to a certain extent, in large-scale engineering construction, the cost is relatively high,
Benefit is poor.Beggar-ticks is annual tall and big draft of growing thickly, and is a kind of cadmium enriching plant, and a kind of common farmland weed,
Stronger to win honour for, strive outlet capacity with stronger anti-adversity ability, nutrient growth is rapid, fertility is strong and is suitable for item in environment
Biomass great can improve under part, applicant, by for many years the study found that in plant type height, richness light and resistance to shady, deep root and shallowly
The various aspects such as root can form complementary with S.plumbizincicola.
Currently, beggar-ticks is mostly focused on field of medicaments using class patent, minority is used for feed and organic fertilizer auxiliary material, in ring
The application that aspect is repaired in border is also more rare, and wherein water treatment field 1 (CN107376856A), heavy metal-polluted soil repairs 4,
Respectively cadmium arsenic combined pollution is repaired in beggar-ticks/rape rotation restoring cadmium polluted (CN107175256A), nonoculture
(CN101745522A) it and grafts miscegenation or combines microorganism remediation heavy metal pollution (CN107552560A, CN
108271613A), the technology of the present invention method is different from other patent families, and has stronger promotional value through practice.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides that a kind of rehabilitation cost is low, effect is good and can bring certain economic valence
The restorative procedure of the cadmium pollution soil of value.
In order to solve the above-mentioned technical problem, technical scheme is as follows:
S.plumbizincicola and beggar-ticks are planted in be repaired by a kind of restorative procedure of cadmium pollution soil in a manner of intercropping
In multiple cadmium pollution soil, realize that joint is repaired.
In this way, providing shading effect by beggar-ticks for S.plumbizincicola, the problem of aestivating of S.plumbizincicola is effectively solved, is being exempted from
In the case where going sunshade measure, guarantee S.plumbizincicola to the absorption concentration effect of cadmium, wherein beggar-ticks also can absorb cadmium, from
And realize low-cost high-efficiency except cadmium；In addition, beggar-ticks as a kind of Chinese herbal medicine, can be used for extracting a variety of medicinal ingredients, can bring
Certain economic value.
Further, the present invention by the Cd uptake in contaminated soil and is enriched in ground object by the rehabilitation plant of plantation,
It is safely removed after maturation to be grown and reaches reparation target, generally, the growth period of the plant is 3~6 months.
Further, which includes the following steps:
(1) it in cadmium pollution soil to be repaired, is planting beggar-ticks the 2-4 month in a certain year, the 3-5 month of current year is planting companion
Mine red-spotted stonecrop；
(2) it is harvesting removal beggar-ticks the 7-9 month of current year, and is planting second batch of beggar-ticks；
S.plumbizincicola is once cradled in the 8-10 month of current year；
(3) it is harvesting removal beggar-ticks the 2-4 month of next year, and is planting new one batch of beggar-ticks；
S.plumbizincicola is once cradled in the 3-5 month of next year；
(4) step (2) to step (3) are repeated, until cadmium content reaches reparation target in cadmium pollution soil.
Further, when cradling, height for the stubble left 2-4cm.Further, the sturdy branch obtained after S.plumbizincicola cradles
As seedling, seedling 5~8cm of plant height was cradled with the interval of cuttage less than 5 days.
After manually cradling, fresh sample can be used for continuing transplanting and expands repaired area S.plumbizincicola, or carry out nothing through burning
Evilization processing.The beggar-ticks of harvest it is removed from field after, can be used as medicinal ingredient extract or reprocessing raw material, also can be used as burning
The spike that generates electricity realizes harmlessness disposing.
Preferably, in cadmium pollution soil, compound fertilizer 500-700kg/hm is applied every year2, to promote beggar-ticks and with mine scape
It growth metabolism promotes repairing effect.
Further, S.plumbizincicola is planted in a manner of cuttage, in order to guarantee survival rate and repairing effect, in premenstruum (premenstrua) room
Preferably, the elemental height of the S.plumbizincicola of cuttage is 5-8cm for experiment, and 2-3 plants of S.plumbizincicolas are planted in every cave.
Further, beggar-ticks is planted in such a way that kind is broadcast, i.e., by beggar-ticks seed broadcasting in cadmium pollution soil to be repaired
In earth and earthing is compacted, in order to guarantee full stand, it is ensured that beggar-ticks density and shaded effects reach 5~10cm to beggar-ticks height of seedling
When, thinning of filling the gaps with seedlings is carried out, every cave stays 2-4 plants of seedling, it is preferable that thickness of earth-fill cover 3-5cm, the dosage of Bidens bipinnata grass seed is 0.5~
0.8kg/ mus.Beggar-ticks is filled the gaps with seedlings thinning when being up to 5~10cm, is mainly in view of full stand, and operating herein is finely to guarantee beggar-ticks
Planting density, it is ensured that main body rehabilitation plant-red-spotted stonecrop shaded effects, guarantee repairing effect.
Further, 1 row beggar-ticks is planted in the two sides of every 1-5 row S.plumbizincicola respectively, between the S.plumbizincicola of adjacent rows
Or the line-spacing between the S.plumbizincicola and beggar-ticks of adjacent rows is 10-20cm, in this way, planting patterns of making rational planning for, gives full play to
The shading effect of beggar-ticks, guarantees the normal growth of two kinds of plants.Preferably, the two sides of every 2-3 row S.plumbizincicola plant 1 respectively
Row beggar-ticks.
Further, the spacing in the rows of S.plumbizincicola is 10-20cm, and the spacing in the rows of beggar-ticks is 20-40cm.
One of preferably, the way to manage of S.plumbizincicola and beggar-ticks are as follows: apply compound fertilizer 550kg/hm every year2,
Equal covering film on ridge, and keep water consumpation sufficient, irrigation canals and ditches dredging is kept, does not occur a wide range of ponding, flooded stain and arid etc. no
Sharp condition.
Further, the width of the overlay film ridge culture on cadmium pollution soil to be repaired, every ridge is 1.2-1.8m, is highly
10-20cm。
Further, 1 row beggar-ticks is planted respectively among the both sides of the edge, ridge of every ridge width direction, in every two row
2-3 row S.plumbizincicola is planted between adjacent beggar-ticks.For best shaded effects and operability (complexity) two aspect
The considerations of, compromise two factors of balance determine the invention cropping pattern.
Further, the planting density of S.plumbizincicola is 20000~25000 plants/acre；The planting density of beggar-ticks is 5000
~7000 plants/acre.
Preferably, S.plumbizincicola and beggar-ticks planting density are respectively 15 (spacing in the rows) cm of (line-spacing) × 15 and 60~120 (rows
Away from) × 30 (spacing in the rows) cm.
One of as a preferred embodiment, 1.3 meters, high 15cm of cadmium pollution soil farmland row spacing, ridge and ridge spacing 30cm.Ridge face
Upper equidistant (15cm) plants 3 row beggar-ticks and 6 row S.plumbizincicolas, Bidens bipinnata grass planting in ridge face center and both sides, beggar-ticks it
Between be respectively colonized 3 plants of S.plumbizincicolas, wide 5cm is respectively stayed on ridge both sides.S.plumbizincicola planting density is 15 × 15cm, and Bidens bipinnata grass planting is close
Degree is 60 × 20cm.
Compared with prior art, beneficial effects of the present invention are as follows:
(1) beggar-ticks that the present invention interplants provides good Shade effect for the growth of S.plumbizincicola, is effectively relieved
S.plumbizincicola is aestivated difficulty, and survival rate is improved, while reducing the investments such as scaffolding bracket, sunshade net；Technology mode operation letter
It is single, economical and practical, benefit is preferable, agricultural producer is easily accepted by.
(2) beggar-ticks that the present invention interplants is also a kind of enriching plant of cadmium, can be achieved to promote mutually with S.plumbizincicola interplanting
Into joint repairing effect, soil drop cadmium rate up to 18% or more.
(3) beggar-ticks is also Chinese herbal medicine simply, can be used for extracting a variety of medicinal ingredients, can bring certain economic value,
And easily cultivation, input cost are lower；Compared with S.plumbizincicola nonoculture+sunshade net processing tupe, the present invention per acre may be used
It saves 3500 yuan or more of greenhouse to take with cost, is a kind of ideal reparation mode.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of planting patterns of the invention, wherein circle indicates beggar-ticks, and diamond shape is indicated with mine scape
It, box indicates ridge face, a height of 15cm in ridge.
Fig. 2 is that S.plumbizincicola biomass dry weight changes (kg/ mus) under Different Ways of Planting.
Fig. 3 is that cadmium plant removal quantity changes (g/ mus) under Different Ways of Planting.
Fig. 4 is Cadmium in Soil changes of contents (mg/kg) under Different Ways of Planting.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail.It should be noted that in the absence of conflict, the present invention
In embodiment and embodiment in feature can be combined with each other.
Test area is located at zhuzhou, hunan province city Liling and lies fallow area, and soil types belongs to yellowish soil, and this area belongs to sub- heat
Band monsoon climate.Average annual 18 DEG C or so of temperature, the annual average frost-free period 288 days or so, annual sunshine 1500 to 1910 hours, year
Average precipitation is between 1300 to 1600 millimeters.Test area amounts to 3 mu, and distribution is straight, tests per acre respectively as one
Unit (A, B, C).3 acquisition topsoils (0-20cm soil layer) are acquired per acre and carry out collecting soil sample, and each sampling point uses
Five-spot takes aggregate sample, and each sampled point mark position (longitude and latitude) measures its soil physico-chemical property.
Table 1: testing site basic physical and chemical
| Test unit | Testing program | pH | Organic matter (g/kg) | P2O5(g/kg) | N(g/kg) | Full cadmium (mg/kg) |
| A | Comparative example 1 | 4.82 | 20.58 | 0.52 | 1.08 | 0.92±0.02 |
| B | Comparative example 2 | 4.75 | 21.02 | 0.71 | 1.21 | 0.88±0.05 |
| C | Embodiment 1 | 4.91 | 20.97 | 0.49 | 1.15 | 0.85±0.01 |
Plant progress consolidation in first 15 days.Ploughed depth 18cm or more shines base 3~5 days (depending on water consumpation), soil
Block, which can be broken up, not to be glued, with rotary cultivator rotary tillage 3 times, and ridging.Ditch divides the furrow face width in compartment to be 1.3m, and compartment ditch width is 0.3m, compartment
Ditch depth is 15cm, is advisable with no ponding.
Every ridge line space 15cm, every row are planted using 3 plants of 6 plants of beggar-ticks interval S.plumbizincicola modes, spacing in the rows 15cm, line-spacing
15cm, wide 5cm is respectively stayed on ridge both sides.
Early March starts to plant, and S.plumbizincicola uses cutting propagation.Selection healthy and strong kind of transplantation of seedlings after cradling, cradles and moves
Interval is planted less than 3 days, 5~10cm of plant height cradles toothing 2cm.Beggar-ticks implantation time is late April, seminal propagation, earthing
3~5cm of depth, average dosage 0.6kg, height of seedling 5cm per acre start thinning, and every cave stays 2~4 plants of seedling.
S.plumbizincicola and beggar-ticks apply compound fertilizer 550kg/hm every year2, equal covering film on ridge periodically irrigates.
The annual September of S.plumbizincicola and March next year cradle twice, and after cradling, fresh sample can be used for continuing transplanting and expand repair surface
Product, can also power generation by waste combustion harmless treatment.Annual 7~the September of beggar-ticks and 2~March of next year harvest and plant again immediately.
Below in conjunction with specific embodiment, the invention will be further described.
Comparative example 1: S.plumbizincicola nonoculture-covering sunshade net (sunshade rate 65%)
Field progress consolidation of in the March, 2017 to 1 mu of size in test unit A, specification are as described above.It covers black
Film ridge culture carries out cutting propagation by 15cm × 15cm, and 6 row S.plumbizincicolas are planted on every ridge, and planting density is 25000 plants/acre.Seedling
It from Yunnan S.plumbizincicola base, detects seedling cadmium content, estimates seedling butt total amount (moisture content is in terms of 85%).5~September
Cover 1 strata ethylene black, three needle sunshade net, sunshade rate 65%.Current year, September toothing 3cm was cradled, and the 2nd batch of March next year harvests.
Off-test in March, 2018 detects soil and plant cadmium content, and sample prescription, which is surveyed, to be produced and convert as dry weight, the change such as record growing way
Change situation.In table 2, survival rate indicates that the strain number of sample prescription biometric measurement timing survival when cradling September accounts for the companion being initially colonized April
The ratio of the strain number of mine red-spotted stonecrop.
As shown in table 2, it is 42.70g that two batches of S.plumbizincicolas, which amount to cadmium removal quantity, and cadmium content is in soil after reparation
0.75mg/kg.150 tons of conversions are weighed with topsoil soil per acre, S.plumbizincicola (2 batches) annual cadmium removal rate is up to 30.94%.Implement
(S.plumbizincicola nonoculture+sunshade net) soil drop cadmium rate after 2 batches are repaired reaches 18.48% under 1 cropping pattern of example.
Table 2: test unit A S.plumbizincicola cadmium, which extracts, removes effect and its biomass
Comparative example 2: S.plumbizincicola nonoculture-do not cover sunshade net
In March, 2017 carries out consolidation to 1 mu of size of the field of test unit B, and specification is the same as embodiment one.It covers
Black film ridge culture, S.plumbizincicola cropping pattern, field management and harvesting approach embodiment 1 are uniquely distinguished as 5~September and do not cover
Sunshade net.Meanwhile acquiring as required after the test, detecting soil and plant cadmium content, sample prescription, which is surveyed, to be produced, and it is long to record plant
The situations of change such as gesture, survival rate.
(table 3) as the result is shown, it is 22.07g that two batches of S.plumbizincicolas, which amount to cadmium removal quantity, and average annual cadmium removal rate is 16.72%.
Compared with embodiment 1, there is 30% or more S.plumbizincicola not to be able to achieve safe production in summer, this directly results in the rapid of the 2nd batch of biomass
Drop, significantly reduces remediation efficiency.Cadmium content is 0.80mg/kg in soil after reparation, and it is only 9.09% that cadmium rate drops in soil.
Table 3: test unit B S.plumbizincicola overground part cadmium, which extracts, removes effect and its biomass
Embodiment 1: S.plumbizincicola-beggar-ticks intercropping
In March, 2017 carries out consolidation to 1 mu of size of the field of test unit C, and specification is the same as comparative example 1 and right
Ratio 2.According to the plantation of cropping pattern shown in Fig. 1 S.plumbizincicola (25000 plants/acre) and beggar-ticks (6250 plants/acre), field is cultivated
Management and harvesting approach are same as above.Do not cover sunshade net.It acquires as required after the test, detect soil and plant cadmium content, sample
Side, which surveys, to be produced, and records the situations of change such as plant growing way, survival rate.Under S.plumbizincicola-beggar-ticks intercropping mode, two batches with mine
It is 41.99g that red-spotted stonecrop, which amounts to cadmium removal quantity, and average annual cadmium removal rate is 32.93%.Cadmium content is 0.69mg/kg in soil after reparation,
It is 18.82% that cadmium rate drops in soil.
Table 4: the enrichment extraction effect and its biomass of S.plumbizincicola and beggar-ticks aerial part to cadmium
Relative to nonoculture red-spotted stonecrop-without sunshade net, using not only increasing depositing for S.plumbizincicola between S.plumbizincicola-beggar-ticks
Motility rate, while being also obviously improved Cadmium in Soil remediation efficiency.For covering sunshade net processing, make year between S.plumbizincicola-beggar-ticks
Difference is little in equal cadmium removal quantity and soil drop cadmium rate two indices, but is significantly better than no sunshade net processing.Beggar-ticks has
Certain medical value can bring certain income.On the other hand, rehabilitation cost can be greatly reduced in interplanting beggar-ticks, with sunshade
Net processing is compared, and can be saved 3500 yuan or more of greenhouse per acre and be taken with cost, be a kind of ideal reparation mode.
To sum up, the present invention by intercropping by annual medicinal herb plant and cadmium enriching plant-Bidens bipinnata grass planting in
S.plumbizincicola periphery；It makes full use of two kinds of plants in plant type height, rich light and resistance to shady, the deep differences of Physiological such as root and shallow root, utilizes
Their breeding times and spatial diversity during the growth process, rationally between make to form two kinds of crop upper layer and lower layer and intersect patterns of farming,
Preferable Shade effect is provided for S.plumbizincicola, and realizes joint repairing effect.The medicinal plant ghost of intercropping of the present invention
Needle can effectively solve the problems, such as the safe production in summer of S.plumbizincicola, improve repairing effect, while bringing certain economic value.This
The technology mode space utilization rate of disclosure of the invention is high, repairing effect is reliable, easy to operate and economic and environment-friendly, and application prospect is preferable,
It is particularly suitable for the reparation practice of different degrees of heavy metal cadmium agricultural land soil.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalent forms of the invention
Modification each fall within the application range as defined in the appended claims.
Claims (10)
1. a kind of restorative procedure of cadmium pollution soil, which is characterized in that by S.plumbizincicola and beggar-ticks in a manner of intercropping
It is planted in cadmium pollution soil to be repaired, realizes that joint is repaired.
2. restorative procedure according to claim 1, which comprises the steps of:
(1) it in cadmium pollution soil to be repaired, is planting beggar-ticks the 2-4 month in a certain year, is planting the 3-5 month of current year with mine scape
It；
(2) it is harvesting removal beggar-ticks the 7-9 month of current year, and is planting second batch of beggar-ticks；
S.plumbizincicola is once cradled in the 8-10 month of current year；
(3) it is harvesting removal beggar-ticks the 2-4 month of next year, and is planting new one batch of beggar-ticks；
S.plumbizincicola is once cradled in the 3-5 month of next year；
(4) step (2) to step (3) are repeated, until cadmium content reaches reparation target in cadmium pollution soil.
3. restorative procedure according to claim 2, which is characterized in that when cradling, height for the stubble left 2-4cm.
4. restorative procedure according to claim 1, which is characterized in that plant S.plumbizincicola in a manner of cuttage, it is preferable that
The elemental height of the S.plumbizincicola of cuttage is 5-8cm, and 2-4 plants of S.plumbizincicolas are planted in every cave.
5. restorative procedure according to claim 1, which is characterized in that plant beggar-ticks in such a way that kind is broadcast, i.e., by Bidens bipinnata
Grass seed broadcasts sowing in cadmium pollution soil to be repaired and earthing compacting, when beggar-ticks height of seedling reaches 5cm, between being filled the gaps with seedlings
Seedling, every cave stay 2-4 plants of seedling, it is preferable that thickness of earth-fill cover 3-5cm, the dosage of Bidens bipinnata grass seed are 0.5 ~ 0.8 kg/ mus.
6. restorative procedure according to claim 1, which is characterized in that plant 1 row respectively in the two sides of every 1-5 row S.plumbizincicola
Beggar-ticks, the line-spacing between the S.plumbizincicola of adjacent rows or between the S.plumbizincicola and beggar-ticks of adjacent rows are 10-20cm.
7. restorative procedure according to claim 6, which is characterized in that the spacing in the rows of S.plumbizincicola is 10-20cm, beggar-ticks
Spacing in the rows is 20-40cm.
8. restorative procedure according to claim 1, which is characterized in that the overlay film ridge culture on cadmium pollution soil to be repaired,
The width on every ridge is 1.2-1.8m, is highly 10-20cm.
9. restorative procedure according to claim 8, which is characterized in that in the both sides of the edge, ridge of every ridge width direction
Between plant 1 row beggar-ticks respectively, between the adjacent beggar-ticks of every two row plant 2-3 row S.plumbizincicola.
10. restorative procedure according to claim 1, which is characterized in that the planting density of S.plumbizincicola is 20000 ~ 25000
Plant/acre；The planting density of beggar-ticks is 5000 ~ 7000 plants/acre.
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| CN110280584A (en) * | 2019-07-12 | 2019-09-27 | 江西洁地环境治理生态科技有限公司 | A kind of heavy metal in soil biology removing method |
| CN111011129A (en) * | 2019-12-30 | 2020-04-17 | 苏州和美生物科技有限公司 | Method for realizing production-while-repair by using low-accumulation corn/Sedum plumbizincicola intercropping |
| CN112404124A (en) * | 2020-10-29 | 2021-02-26 | 桂林理工大学 | Method for interplanting, repairing and utilizing rhodiola paradoxa and passion fruit to pollute farmland soil with medium and light cadmium |
| CN112427452A (en) * | 2020-10-28 | 2021-03-02 | 江苏萤火虫环境科技有限公司 | Method for restoring heavy metal contaminated soil around mining area by plant intercropping |
| CN112845575A (en) * | 2021-01-07 | 2021-05-28 | 山东农业大学 | Method for repairing cadmium-zinc polluted wheat farmland Sedum plumbizincicola stripe intercropping and fertilizer regulation |
| CN113319119A (en) * | 2021-03-19 | 2021-08-31 | 湖南省农业环境生态研究所 | Sedum plumbizincicola multi-yield and cadmium-polluted soil remediation method |
| CN115119566A (en) * | 2022-07-04 | 2022-09-30 | 江苏萤火虫环境科技有限公司 | Method for absorbing and accumulating Cd in heavy metal polluted farmland by sedum plumbizincicola under photovoltaic power generation facility and raising and protecting seedlings |
| CN115647026A (en) * | 2022-10-18 | 2023-01-31 | 湖南省蔬菜研究所 | Method for in-situ remediation of heavy metal contaminated soil by crop interplanting |
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| CN111011129A (en) * | 2019-12-30 | 2020-04-17 | 苏州和美生物科技有限公司 | Method for realizing production-while-repair by using low-accumulation corn/Sedum plumbizincicola intercropping |
| CN112427452A (en) * | 2020-10-28 | 2021-03-02 | 江苏萤火虫环境科技有限公司 | Method for restoring heavy metal contaminated soil around mining area by plant intercropping |
| CN112404124A (en) * | 2020-10-29 | 2021-02-26 | 桂林理工大学 | Method for interplanting, repairing and utilizing rhodiola paradoxa and passion fruit to pollute farmland soil with medium and light cadmium |
| CN112845575A (en) * | 2021-01-07 | 2021-05-28 | 山东农业大学 | Method for repairing cadmium-zinc polluted wheat farmland Sedum plumbizincicola stripe intercropping and fertilizer regulation |
| CN113319119A (en) * | 2021-03-19 | 2021-08-31 | 湖南省农业环境生态研究所 | Sedum plumbizincicola multi-yield and cadmium-polluted soil remediation method |
| CN115119566A (en) * | 2022-07-04 | 2022-09-30 | 江苏萤火虫环境科技有限公司 | Method for absorbing and accumulating Cd in heavy metal polluted farmland by sedum plumbizincicola under photovoltaic power generation facility and raising and protecting seedlings |
| CN115647026A (en) * | 2022-10-18 | 2023-01-31 | 湖南省蔬菜研究所 | Method for in-situ remediation of heavy metal contaminated soil by crop interplanting |
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