CN108787724A - A kind of combined plant restorative procedure of cadmium pollution soil repair - Google Patents
A kind of combined plant restorative procedure of cadmium pollution soil repair Download PDFInfo
- Publication number
- CN108787724A CN108787724A CN201810901759.5A CN201810901759A CN108787724A CN 108787724 A CN108787724 A CN 108787724A CN 201810901759 A CN201810901759 A CN 201810901759A CN 108787724 A CN108787724 A CN 108787724A
- Authority
- CN
- China
- Prior art keywords
- soil
- witloof
- mus
- cadmium
- cadmium pollution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mycology (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Botany (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Cultivation Of Plants (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of combined plant restorative procedure of cadmium pollution soil repair, which includes the following steps：Witloof is planted in cadmium pollution soil with legume in a manner of work to cultivate, completes the reparation to cadmium pollution soil.Combined plant restorative procedure of the present invention, witloof cadmium pollution soil is planted in legume in a manner of work to cultivate, it can realize effective reparation to cadmium pollution soil, have many advantages, such as that repairing effect is good, income is high, also have many advantages, such as that small investment, maintenance cost are low, quantities is small, administrative skill requires physicochemical property that is low, easy to operate, can keeping even improveing soil, cadmium pollution soil can be taken into account simultaneously to produce when repairing, and have good environmental benefit, Social benefit and economic benefit.
Description
Technical field
The invention belongs to heavy-metal contaminated soil Prevention Technique fields, are related to a kind of method of cadmium pollution soil repair, tool
Body is related to a kind of combined plant restorative procedure of cadmium pollution soil repair.
Background technology
It is dug up mine and the comprehensive function of other pollution channels, heavy metal in soil pollution is increasingly severe, wherein heavy metal
Cadmium pollution problem is the most prominent.According to《Standard of soil environment quality》(GB 15618-1995) is shown, cadmium content in acid soil
More than 0.3mg/kg, i.e. there are pollution risks.Thus, heavy metal in soil cadmium pollution becomes limitation crop yield and quality
Key, in addition, heavy metal cadmium health can also be brought by the enrichment of food chain it is potentially hazardous.Therefore, there is an urgent need for counterweights
Metallic pollution soil is repaired, and especially to cadmium pollution soil repair seems particularly urgent.
Currently, phytoremediation technology be it is a kind of with it is economical, green, environmental-friendly and can the advantages such as in-situ immobilization with plant
Recovery technique based on object is absorbed by root system of plant from soil when being repaired to heavy-metal contaminated soil using plant
Heavy metal ion, and it is transported to each position of plant, to which the heavy metal in soil is transferred in plant, realization pair
The reparation of heavy-metal contaminated soil, has been widely used for restoration of soil polluted by heavy metal.For cadmium pollution soil, plant roots
System is primarily limited to the existing forms of cadmium in the soil to the assimilation effect of cadmium ion, as can the cadmium for being absorbed by plants accumulation is main
Exist in the form of exchangeable species, however the content of exchangeable cadmium is relatively fewer, i.e. the content of soil available Cd is relatively low, leads
Cause root system of plant that can not effectively absorb more cadmium ions so that plant is difficult to improve the repairing effect of cadmium pollution soil.One
Aspect, in the method for existing activation cadmium pollution soil, although plant used can secrete organic acid, the organic acid kind of secretion
Class is less, and the organic acid content secreted is relatively low, it is difficult to cadmium pollution soil is quickly and efficiently activated, as a result, activation effect
It is poor, in some instances it may even be possible to which that the physicochemical property that can destroy soil makes soil lose recycle value.On the other hand, existing reparation cadmium is dirty
In the method for contaminating soil, the planting season of plant (such as corn) used conflicts with industrial crops (such as rice, wheat), causes
Land resource cannot reasonably be utilized, preferable repairing effect and economic benefit can not be obtained, and the plant products utilized it is low,
Technical costs is big, plants enriched coefficient is small, bad to the extraction effect of cadmium.In fact, since cadmium has toxicity, plant can be inhibited
Growth and development, make plant can not normal growth, be unfavorable for improving plant to the repairing effect of cadmium pollution soil, and can also reduce
The yield of plant, causes economic benefit to reduce, or even due to the cadmium of plant kernel meeting enriched, causes seed super because of cadmium content
It marks and cannot eat, substantially reduce the use value and economic benefit of phytoremediation, be unfavorable for reducing the cost of phytoremediation.Separately
Outside, that there is also costs of investment is high, maintenance cost is high, quantities is big, administrative skill requirement for the method for existing cadmium pollution soil repair
The problems such as high, complicated for operation, seriously limits the application value and application range of phytoremediation technology.As it can be seen that existing cadmium pollution
There are still cost of investment height, maintenance cost height, quantities in the recovery technique of soil greatly, administrative skill requirement is high, operates again
Miscellaneous, the problems such as repairing effect is poor, income is poor.Therefore, how to improve the above problem comprehensively, obtain that a kind of repairing effect is good, income
The method of high cadmium pollution soil repair has for improving the application range that phytoremediation technology repairs field in cadmium pollution soil
It is significant.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide that a kind of repairing effect is good, income is high
Cadmium pollution soil repair combined plant restorative procedure.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of combined plant restorative procedure of cadmium pollution soil repair, the combined plant restorative procedure include following step
Suddenly：Witloof is planted in cadmium pollution soil with legume in a manner of work to cultivate, cadmium pollution soil is repaiied in completion
It is multiple.
Combinations of the above plant restoration method, further improved, the line-spacing between the witloof and legume is
20cm~40cm.
Combinations of the above plant restoration method, further improved, the witloof is to be broadcast chicory seed with drilling method
Kind is in cadmium pollution soil；The sowing spacing in the rows of the chicory seed is 10cm~15cm.
Combinations of the above plant restoration method, further improved, the application rate of the witloof is 1kg/ mus~1.5kg/
Mu.
Combinations of the above plant restoration method, further improved, the legume is Vicia sativa, broad bean, pea, purple
At least one of Yun Ying, white clover, Lupinus albus.
Combinations of the above plant restoration method, it is further improved, when the legume is broad bean, pea, with program request
Mode sows seeds of leguminous plant in cadmium pollution soil；The sowing spacing in the rows of the seeds of leguminous plant is 10cm~20cm；
The application rate of the broad bean is 5.5kg/ mus~7kg/ mus；The application rate of the pea is 5.5kg/ mus~8kg/ mus.
Combinations of the above plant restoration method, further improved, the legume is Vicia sativa, Chinese milk vetch, white vehicle
When axis grass, Lupinus albus, seeds of leguminous plant is sowed in cadmium pollution soil with drilling method；The seeds of leguminous plant
Sowing spacing in the rows is 10cm~20cm；The application rate of the Vicia sativa is 3kg/ mus~4kg/ mus；The application rate of the Chinese milk vetch is
1kg/ mus~2kg/ mus；The application rate of the white clover is 0.5kg/ mus~1kg/ mus；The application rate of the Lupinus albus is
3kg/ mus~4kg/ mus.
Combinations of the above plant restoration method, further improved, the initial concentration of cadmium is in the cadmium pollution soil
0.3mg/kg~5.0mg/kg.
Combinations of the above plant restoration method, further improved, the legume is in the fall or winter planting；It is described
Culture is carried out according to plant nature growth pattern；It is maximum water-holding capacity that cadmium pollution soil water content is kept in the incubation
65%~75%；Further include applying composite fertilizer and organic fertilizer into cadmium pollution soil in the incubation.
Combinations of the above plant restoration method, it is further improved, the applied amount of the composite fertilizer is 25kg/ mus~
35kg/ mus；N, P in the composite fertilizer2O5、K2The weight ratio of O is 15: 10: 10；The applied amount of the organic fertilizer is 450kg/ mus
~500kg/ mus.
In the present invention, witloof (Cichorium intybus L.) used also known as coffee grass belong to composite family, and perennial herb is planted
Object.Witloof has the characteristics that grass yield is high, nutritive value is excellent, palatability is good, power of regeneration is strong, and be one kind having potentiality to be exploited very much
High yield and high quality forage grass.
In the present invention, Vicia sativa (Vicia villosa Roth) used is that pulse family Vetch is annual or more year sward
This plant, well developed root system, main root are apparent.Vicia sativa is the transitional type of spring habit and winter habit, but is biased to winter habit, and nutritive value is very
It is high.
In the present invention, broad bean (Vicia faba L.) used, also known as broad bean, lima bean, lima bean etc., are pulse family open country peas
Macroptilium annual herb plant.Resistance to -4 DEG C of low temperature of broad bean fears heat, and main root is short and thick, pogoniasis root, root nodule pink, intensive.Broad bean is
Grain, vegetables and feed, green manure dual-purpose crop.
In the present invention, pea (Pisum sativum Linn) used, which is that pulse family Vetch is annual, climbs up by holding on to draft, and half
Cold resistance crop likes the weather of mild and moist, intolerant to scorching dullness.
In the present invention, Chinese milk vetch (Astragalus sinicus L.) used also known as Chinese milk vetch, are pulse family Astragalus two
Year raw herbaceous plant.Chinese milk vetch main root is looser, lateral root bury it is shallower, on the radicula of main root, lateral root and earth's surface can take root
Tumor, with number in the majority in lateral root.Mostly set is sowed in late rice Chinese milk vetch in the fall, is made the base manure of early rice, is that China rice field is main
Winter green manure crop.Chinese milk vetch nutritive value is quite high, in addition to as green manure, moreover it is possible to which directly or ensiling Chinese milk vetch makees feed.
In the present invention, white clover (Trifolium repens L.) used also known as Trifolium repense, white flower clover etc. are
Pulse family Clover perennial herb, wide adaptability, heat resistanceheat resistant winter resistance is strong, can the vigorous growth in acid soil, also can be in sand
It is grown in matter soil, there is certain ornamental value, be one of countries in the world Main Cultivation herbage.
In the present invention, Lupinus albus (Lupinus albus) used is pulse family Lupinus annual herb, relatively cold-resistant (-
5 DEG C or more), happy expression, which is waited, feels nice and cool, and well developed root system is drought-enduring, optimum sand loam soil.Lupinus albus can be used as feed and green manure, again
It can make ornamental plant.
Compared with the prior art, the advantages of the present invention are as follows：
(1) the present invention provides a kind of combined plant restorative procedures of cadmium pollution soil repair, by chrysanthemum in a manner of work
Lettuce is planted in cadmium pollution soil with legume and is cultivated, and realizes effective reparation to cadmium pollution soil.In the present invention, pulse family
Plant (such as Vicia sativa, broad bean, pea, Chinese milk vetch, white clover, Lupinus albus) can normally give birth in cadmium pollution soil
It is long, and yield keeps normal level, at the same the root system of these legumes can largely secrete a variety of secretion (such as organic acid,
Including citric acid, malic acid, lactic acid), and the content of secretion is very high, is on the one hand improved by legume root rhizosphere secreta
The physicochemical property of cadmium pollution soil is conducive to the growth of witloof and legume, is on the other hand secreted by legume rhizosphere
Organic acid for activating cadmium pollution soil improve the available state of cadmium in soil to change the form or bio-toxicity of cadmium in soil
Content achievees the purpose that improve soil available Cd content.On this basis, in the present invention by witloof and legume with
The mode of work is planted in cadmium pollution soil, witloof can it is significantly more efficient absorb soil in available Cd, and then preferably
The repairing effect to cadmium pollution soil is improved, realizes effective reparation to cadmium pollution soil.In addition, being trained in witloof and legume
During supporting, (e.g., regulate and control planting mode (line-spacing, spacing in the rows and application rate), moisture pipe in conjunction with different agronomy regulation measures
Reason, fertilizing management, Pest management etc.), on the one hand utilize witloof to extract the preferential absorption of cadmium, and it is logical to be transferred to overground part part
Cross to overground part cutting carry out strange land centralized processing, reduce soil available content of beary metal, on the other hand by witloof with
Reciprocal effects between legume, the cadmium that legume rhizosphere secretion organic acid can be in activating soil in cadmium pollution soil,
Promote absorption of the witloof to cadmium in soil, while reducing the legume with witloof interaction to cadmium uptuke, to drop
The content of cadmium in low legume is realized under the premise of not destroying farmland ecological environment and existing plantation function to cadmium pollution soil
The in-situ immobilization of earth ensures the purpose of agricultural product security, while not influencing normal agricultural production, and the yield of witloof can be made to protect
Normal level is held, and improves the yield of witloof and legume.In the present invention, by witloof and legume kind in a manner of work
It is implanted in cadmium pollution soil, using legume to the activation of cadmium in cadmium pollution soil, improves legume rhizosphere soil
The content of middle available Cd is reached the effect of activating soil cadmium, while being absorbed to the available Cd in soil using witloof,
Uptake of the witloof to soil available Cd can not only be improved, improves repairing effect, and more soil are absorbed by witloof
In available Cd can also reduce influence of the available Cd to legume growth and development, to ensure witloof and legume
Under the premise of normal growth, the yield of witloof and legume is maintained.In the present invention, witloof is to make autumn and winter with legume
Object is made between the two, additionally it is possible to improve land utilization ratio, improve soil nutrient structure, obtain better repairing effect.Of the present invention group
Plant restoration method is closed, witloof is planted in cadmium pollution soil with legume in a manner of work cultivates, and can realize
Effective reparation to cadmium pollution soil has many advantages, such as that repairing effect is good, income is high, also has that small investment, maintenance cost be low, work
Journey amount is small, administrative skill requires low, easy to operate, the advantages that capable of keeping even improveing the physicochemical property of soil, while can
It takes into account cadmium pollution soil to produce when repairing, there is good environmental benefit, Social benefit and economic benefit.
(2) in combined plant restorative procedure of the present invention, using witloof as enriching plant, belong to autumn and winter crop.The present invention with
Witloof plants witloof as main plant object, using autumn and winter vacant field, public land, does not interfere with the normal production of rice crop, can either
The normal volume of rice crop is maintained, and land utilization ratio can also be improved, improves soil nutrient structure.Witloof of the present invention is to cadmium
Enrichment performance it is strong, the cadmium content in plant is apparently higher than soil background values, and concentration level is high, and strong to soil suitability,
Ground biomass is big.
(3) in combined plant restorative procedure of the present invention, with Vicia sativa, broad bean, pea, Chinese milk vetch, white clover and Bai Yu
It is legume to fan at least one of beans, they belong to autumn and winter crop, wherein Vicia sativa, broad bean, Chinese milk vetch, white axle
After grass, this 5 kinds of Lupinus albus make cadmium pollution soil repair between legume and witloof, their yield are above pea.In addition, hair
For sweet potato other than the nitrogen fixation of root nodule, its own unique root exudates is preferable to the improvement effect of the readily available nutrient of soil；
Chinese milk vetch is larger to the concentration coefficient of cadmium, can also improve repairing effect.
(4) in combined plant restorative procedure of the present invention, witloof and legume can normal growth, the yield of witloof is also just
Often, reach 5000kg/ mus~6000kg/667m2, economic benefit can be generated, rehabilitation cost is reduced.Meanwhile legume produces
Amount is in normal level, and the yield of Vicia sativa is 1000kg/ mu~2500kg/ mus, the yield of broad bean for 150kg/ mus~
280kg/ mus, the yield of pea is 150kg/ mus~200kg/ mus, and the yield of Chinese milk vetch is 6000kg/ mus~7500kg/ mus, in vain
The yield of clover is 2500kg/ mus~3000kg/ mus, and the yield of Lupinus albus is 250kg/ mus~300kg/ mus, also can
Preferable economic benefit is generated, rehabilitation cost is further decreased.
Specific implementation mode
Below in conjunction with specific preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection domain.
Material and instrument employed in following embodiment are commercially available.In the embodiment of the present invention, unless otherwise noted,
Following the data obtained is the average value of the above experiment three times.
Embodiment 1：
A kind of combined plant restorative procedure of cadmium pollution soil repair specially utilizes the combination reparation of witloof and Vicia sativa
Cadmium pollution soil, wherein test site are located at Changsha, Hunan Liuyang City, soil cadmium concentration be respectively 0.5mg/kg and
1.0mg/kg, organic acid content is 113.14mg/kg, soil CaCl in the contaminated soil that cadmium concentration is 0.5mg/kg2- Cd contents
For 0.08mg/kg, soil DTPA-Cd contents are 0.21mg/kg；Organic acid content in the contaminated soil that cadmium concentration is 1.0mg/kg
For 121.20mg/kg, soil CaCl2- Cd contents are 0.45mg/kg, and soil DTPA-Cd contents are 0.39mg/kg, with work
Mode cultivates witloof with Vicia sativa in both cadmium pollution soils, includes the following steps：
(1) October the previous year (autumn) carries out site preparation to cadmium pollution soil, and application promotes the root of witloof and Vicia sativa
It is the nitrogen-phosphorus-potassium compound fertilizer (commercially available) and organic fertilizer (commercially available) of growth, the wherein applied amount of nitrogen-phosphorus-potassium compound fertilizer is 28kg/ mus, and
N, P in nitrogen-phosphorus-potassium compound fertilizer2O5、K2The weight ratio of O is 15: 10: 10, and the applied amount of organic fertilizer is 450kg/ mus.
(2) by make in a manner of will witloof and Vicia sativa plantation in step (1) in apply fertilizer cadmium pollution soil in, chrysanthemum
Line-spacing between lettuce and Vicia sativa is 20cm, and wherein witloof is sowed with drilling method, spacing in the rows 12cm, and application rate is
1.5kg/ mu；Vicia sativa is sowed with drilling method, spacing in the rows 12cm, and application rate is 3.5kg/ mus.According to growth side naturally
Formula cycle growth periodically carries out water consumpation management, keeps soil moisture content the 70% of maximum water-holding capacity, until witloof and hair
Sweet potato is ripe, completes the reparation to cadmium pollution soil.
Plant harvest period and harvesting method：Witloof and hair sweet potato are harvested respectively in May of next year by a repairing efficiency
Sub- overground part.Weigh under witloof-Vicia sativa intercropping system the overground part fresh weight of witloof be 7426kg/ mu (0.5mg/kg cadmium dirts
Contaminate soil) and 7361kg/ mus (1.0mg/kg cadmium pollution soils)；The witloof aerial part of harvest and Vicia sativa aerial part (pod
Fruit, stalk), and the total cadmium content of overground part is measured, as shown in table 1-1；Witloof Rhizosphere Soil and Vicia sativa Rhizosphere Soil are acquired respectively, are surveyed
The total cadmium content of Rhizosphere Soil is determined, as shown in table 1-2.
Make Vicia sativa and the total cadmium content of nonoculture mode overground part between table 1-1 witloofs
Make Vicia sativa and nonoculture mode rhizosphere organic acid content and the total cadmium content of Rhizosphere Soil between table 1-2 witloofs
It can be seen that under witloof-Vicia sativa intercropping mode from table 1-1, the total cadmium content of witloof overground part is higher than nonoculture witloof,
The total cadmium content of Vicia sativa overground part is then less than nonoculture Vicia sativa.It can be seen that under witloof-Vicia sativa intercropping mode from table 1-2, root
Soil total cadmium content in border significantly reduces, and is below nonoculture witloof and nonoculture Vicia sativa, and rhizosphere organic acid content is above nonoculture
Witloof and nonoculture Vicia sativa.Consolidated statement 1-1 and table 1-2 is it is found that witloof and Vicia sativa are planted in by the present invention in a manner of work
In cadmium pollution soil, using Vicia sativa to the activation of cadmium in cadmium pollution soil, available state in Vicia sativa rhizosphere soil is improved
The content of cadmium is reached the effect of activating soil cadmium, while being absorbed to the available Cd in soil using witloof, can not only be carried
High witloof improves repairing effect to the uptake of soil available Cd, and is absorbed by witloof effective in more soil
State cadmium can also reduce influence of the available Cd to Vicia sativa growth and development, to before ensureing witloof and Vicia sativa normal growth
It puts, maintains the yield of witloof and Vicia sativa, have many advantages, such as that repairing effect is good, income is high, there is good environmental benefit, society
Meeting benefit and economic benefit, this is demonstrated, and witloof-broad bean intercropping mode is strong to the activation capacity of Cadmium in Soil and extractability is strong, together
When show that witloof-Vicia sativa intercropping mode has a high potential to cadmium pollution soil repair.
Embodiment 2：
A kind of combined plant restorative procedure of cadmium pollution soil repair specially utilizes the combination of witloof and broad bean to repair cadmium
Contaminated soil, wherein test site are located at Changsha, Hunan Liuyang City, and soil cadmium concentration is respectively 1.0mg/kg and 3.0mg/
Kg, organic acid content is 121.20mg/kg, soil CaCl in the contaminated soil that cadmium concentration is 1.0mg/kg2- Cd contents are
0.45mg/kg, soil DTPA-Cd contents are 0.39mg/kg；Organic acid content is in the contaminated soil that cadmium concentration is 3.0mg/kg
110.03mg/kg soil CaCl2- Cd contents are 1.57mg/kg, and soil DTPA-Cd contents are 1.58mg/kg, with the side made
Formula cultivates witloof with broad bean in both cadmium pollution soils, includes the following steps：
(1) October the previous year (autumn) carries out site preparation to cadmium pollution soil, and application promotes the root system of witloof and broad bean
The nitrogen-phosphorus-potassium compound fertilizer and organic fertilizer of growth, the wherein applied amount of nitrogen-phosphorus-potassium compound fertilizer are 35kg/ mus, and in nitrogen-phosphorus-potassium compound fertilizer
N、P2O5、K2The weight ratio of O is 15: 10: 10, and the applied amount of organic fertilizer (commercially available) is 450kg/ mus.
(2) by make in a manner of will witloof and broad bean plantation in step (1) in apply fertilizer cadmium pollution soil in, witloof
Line-spacing between broad bean is 35cm, and wherein witloof is sowed with drilling method, spacing in the rows 15cm, and application rate is 1kg/ mus；
Broad bean is sowed with a broadcast mode, spacing in the rows 15cm, and application rate is 6kg/ mus.It is fixed according to natural growth pattern cycle growth
Phase carries out water consumpation management, keeps soil moisture content the 75% of maximum water-holding capacity, until witloof and broad bean are ripe, completion pair
The reparation of cadmium pollution soil.
Plant harvest period and harvesting method：Witloof and broad bean are harvested respectively in May of next year by a repairing efficiency
Plant above ground portion.Weigh under witloof-broad bean intercropping system the overground part fresh weight of witloof be 7404kg/ mu (1.0mg/kg cadmium dirts
Contaminate soil) and 7342kg/ mus (3.0mg/kg cadmium pollution soils), harvest the aerial part of witloof and the aerial part (pod of broad bean
Fruit, stalk), and the total cadmium content of aerial part is measured, as shown in table 2-1；Witloof Rhizosphere Soil and broad bean Rhizosphere Soil are acquired respectively, are surveyed
The total cadmium content of Rhizosphere Soil is determined, as shown in table 2-2.
Table 2-1 witloofs Fababean Intercropping and the total cadmium content of nonoculture mode overground part
Table 2-2 witloofs Fababean Intercropping and nonoculture mode rhizosphere organic acid content and the total cadmium content of Rhizosphere Soil
It can be seen that under witloof-broad bean intercropping mode from table 2-1, the total cadmium content of witloof overground part is higher than nonoculture witloof, silkworm
The total cadmium content of beans overground part is then less than nonoculture broad bean.It can be seen that under witloof-broad bean intercropping mode from table 2-2, the total cadmium of Rhizosphere Soil
Content significantly reduces, and is below nonoculture witloof and nonoculture broad bean, and rhizosphere organic acid content is above nonoculture witloof and nonoculture
Broad bean.Consolidated statement 2-1 and table 2-2 it is found that the present invention in a manner of making by witloof and broad bean in cadmium pollution soil, utilize silkworm
Beans improve the content of broad bean rhizosphere soil available Cd, reach activating soil cadmium to the activation of cadmium in cadmium pollution soil
Effect, while the available Cd in soil is absorbed using witloof, witloof can not only be improved to soil available Cd
Uptake, improve repairing effect, and the available Cd in more soil is absorbed by witloof can also reduce available Cd pair
The influence of broad bean growth and development, under the premise of ensureing witloof and broad bean normal growth, maintain the yield of witloof and broad bean,
Have many advantages, such as that repairing effect is good, income is high, has good environmental benefit, Social benefit and economic benefit, this demonstrates chrysanthemum
Lettuce-broad bean intercropping mode is strong to the activation capacity of Cadmium in Soil and extractability is strong, while showing witloof-broad bean intercropping mode to repairing
Multiple cadmium pollution soil has a high potential.
Embodiment 3：
A kind of combined plant restorative procedure of cadmium pollution soil repair specially utilizes the combination of witloof and pea to repair cadmium
Contaminated soil, wherein test site are located at Changsha, Hunan Liuyang City, and soil cadmium concentration is respectively 0.3mg/kg and 3.5mg/
Kg, organic acid content is 97.79mg/kg, soil CaCl in the contaminated soil that cadmium concentration is 0.3mg/kg2- Cd contents are
0.05mg/kg, soil DTPA-Cd contents are 0.17mg/kg；Organic acid content is in the contaminated soil that cadmium concentration is 3.5mg/kg
89.97mg/kg soil CaCl2- Cd contents are 1.77mg/kg, and soil DTPA-Cd contents are 1.85mg/kg, with the side made
Formula cultivates witloof with pea in both cadmium pollution soils, includes the following steps：
(1) October the previous year (autumn) carries out site preparation to cadmium pollution soil, and application promotes the root system of witloof and pea
The nitrogen-phosphorus-potassium compound fertilizer and organic fertilizer of growth, the wherein applied amount of nitrogen-phosphorus-potassium compound fertilizer are 35kg/ mus, and in nitrogen-phosphorus-potassium compound fertilizer
N、P2O5、K2The weight ratio of O is 15: 10: 10, and the applied amount of organic fertilizer (commercially available) is 480kg/ mus.
(2) by make in a manner of will witloof and pea plantation in step (1) in apply fertilizer cadmium pollution soil in, witloof
Line-spacing between pea is 25cm, and wherein witloof is sowed with drilling method, spacing in the rows 12cm, application rate 1.5kg/
Mu；Pea is sowed with a broadcast mode, spacing in the rows 12cm, and application rate is 7kg/ mus.According to natural growth pattern cycle growth,
Water consumpation management is periodically carried out, keeps soil moisture content the 75% of maximum water-holding capacity, until witloof and pea are ripe, completes
Reparation to cadmium pollution soil.
Plant harvest period and harvesting method：Witloof and pulse family are harvested respectively in May of next year by a repairing efficiency
Plant above ground portion.Weigh witloof-pea witloof overground part fresh weight under intercropping system is 7460kg/ mu (0.3mg/kg cadmiums dirts
Contaminate soil) and 7346kg/ mus (3.5mg/kg cadmium pollution soils)；The aerial part (pod, stalk) of witloof and pea is harvested, and
The total cadmium content of aerial part is measured, as shown in table 3-1；Witloof Rhizosphere Soil and Rhizosphere of Pea soil are acquired respectively, and it is total to measure Rhizosphere Soil
Cadmium content, as shown in table 3-2.
Make pea and the total cadmium content of nonoculture mode overground part between table 3-1 witloofs
Make pea and nonoculture mode rhizosphere organic acid content and the total cadmium content of Rhizosphere Soil between table 3-2 witloofs
It can be seen that under witloof-pea intercropping pattern from table 3-1, the total cadmium content of witloof overground part is higher than nonoculture witloof, pea
The total cadmium content of beans overground part is then less than nonoculture pea；It can be seen that under witloof-pea intercropping pattern from table 3-2, the total cadmium of Rhizosphere Soil
Content significantly reduces, and is below nonoculture witloof and nonoculture pea, and rhizosphere organic acid content is above nonoculture witloof and nonoculture
Pea.Consolidated statement 3-1 and table 3-2 is it is found that witloof and pea are planted in cadmium pollution soil by the present invention in a manner of making, profit
With pea to the activation of cadmium in cadmium pollution soil, the content of Rhizosphere of Pea soil available Cd is improved, activated soil is reached
The effect of earth cadmium, while the available Cd in soil is absorbed using witloof, witloof can not only be improved to effective in soil
The uptake of state cadmium improves repairing effect, and absorb the available Cd in more soil by witloof to reduce available state
Influence of the cadmium to pea growth and development, to ensureing witloof and under the premise of pea normal growth, maintain witloof and pea
Yield has many advantages, such as that repairing effect is good, income is high, there is good environmental benefit, Social benefit and economic benefit, this verification
Witloof-pea intercropping pattern is strong to the activation capacity of Cadmium in Soil and extractability is strong, while showing witloof-pea intercropping pattern
It has a high potential to cadmium pollution soil repair.
Embodiment 4：
A kind of combined plant restorative procedure of cadmium pollution soil repair specially utilizes the combination reparation of witloof and Chinese milk vetch
Cadmium pollution soil, wherein test site are located at Changsha, Hunan Liuyang City, soil cadmium concentration be respectively 1.2mg/kg and
3.6mg/kg, organic acid content is 108.1mg/kg, soil CaCl in the contaminated soil that cadmium concentration is 1.2mg/kg2- Cd contents
For 0.31mg/kg, soil DTPA-Cd contents are 0.46mg/kg；Organic acid content in the contaminated soil that cadmium concentration is 3.6mg/kg
For 107.05mg/kg, soil CaCl2- Cd contents are 1.85mg/kg, and soil DTPA-Cd contents are 1.82mg/kg, with work
Mode cultivates witloof with Chinese milk vetch in both cadmium pollution soils, includes the following steps：
(1) October the previous year (autumn) carries out site preparation to cadmium pollution soil, and application promotes the root of witloof and Chinese milk vetch
It is the nitrogen-phosphorus-potassium compound fertilizer and organic fertilizer of growth, wherein the applied amount of nitrogen-phosphorus-potassium compound fertilizer is 30kg/ mus, and nitrogen-phosphorus-potassium compound fertilizer
Middle N, P2O5、K2The weight ratio of O is 15: 10: 10, and the applied amount of organic fertilizer (commercially available) is 450kg/ mus.
(2) by make in a manner of will witloof and Chinese milk vetch plantation in step (1) in apply fertilizer cadmium pollution soil in, chrysanthemum
Line-spacing between lettuce and Chinese milk vetch is 20cm, and wherein witloof is sowed with drilling method, spacing in the rows 10cm, and application rate is
1.5kg/ mu；Chinese milk vetch is sowed with drilling method, spacing in the rows 10cm, and application rate is 1.5kg/ mus.According to growth side naturally
Formula cycle growth periodically carries out water consumpation management, keeps soil moisture content the 65% of maximum water-holding capacity, until witloof and purple
Cloud Yingcheng is ripe, completes the reparation to cadmium pollution soil.
Plant harvest period and harvesting method：Witloof and purple cloud are harvested respectively in May of next year by a repairing efficiency
English overground part.Weigh the lower witloof overground part fresh weight of witloof-Chinese milk vetch processing be 7406kg/ mus (1.2mg/kg cadmium pollution soils) and
7396kg/ mus (3.6mg/kg cadmium pollution soils)；The aerial part (stalk) of witloof and Chinese milk vetch is harvested, and measures aerial part
Total cadmium content, as shown in table 4-1；Witloof Rhizosphere Soil and Chinese milk vetch Rhizosphere Soil are acquired respectively, measure the total cadmium content of Rhizosphere Soil, such as table
Shown in 4-2.
Make Chinese milk vetch and the total cadmium content of nonoculture mode overground part between table 4-1 witloofs
Make Chinese milk vetch and nonoculture mode rhizosphere organic acid content and the total cadmium content of Rhizosphere Soil between table 4-2 witloofs
It can be seen that under witloof-Chinese milk vetch intercropping mode from table 4-1, the total cadmium content of witloof overground part is higher than nonoculture witloof,
The total cadmium content of Chinese milk vetch overground part is then less than nonoculture Chinese milk vetch；It can be seen that under witloof-Chinese milk vetch intercropping mode from table 4-2, root
Soil total cadmium content in border significantly reduces, and is below nonoculture witloof and nonoculture Chinese milk vetch, and rhizosphere organic acid content is above nonoculture
Witloof and nonoculture Chinese milk vetch.Consolidated statement 4-1 and table 4-2 is it is found that witloof and Chinese milk vetch are planted in by the present invention in a manner of work
In cadmium pollution soil, using Chinese milk vetch to the activation of cadmium in cadmium pollution soil, available state in Chinese milk vetch rhizosphere soil is improved
The content of cadmium is reached the effect of activating soil cadmium, while being absorbed to the available Cd in soil using witloof, can not only be carried
High witloof improves repairing effect to the uptake of soil available Cd, and is absorbed by witloof effective in more soil
State cadmium can also reduce influence of the available Cd to Chinese milk vetch growth and development, to before ensureing witloof and Chinese milk vetch normal growth
It puts, maintains the yield of witloof and Chinese milk vetch, have many advantages, such as that repairing effect is good, income is high, there is good environmental benefit, society
Meeting benefit and economic benefit, this is demonstrated, and witloof-Chinese milk vetch intercropping mode is strong to the activation capacity of Cadmium in Soil and extractability is strong,
Show that witloof-Chinese milk vetch intercropping mode has a high potential to cadmium pollution soil repair.
Embodiment 5：
A kind of combined plant restorative procedure of cadmium pollution soil repair, is specially repaiied using the combination of witloof and white clover
Multiple cadmium pollution soil, wherein test site are located at Changsha, Hunan Liuyang City, soil cadmium concentration be respectively 0.3mg/kg with
2.5mg/kg, organic acid content is 97.79mg/kg, soil CaCl in the contaminated soil that cadmium concentration is 0.3mg/kg2- Cd contents
For 0.05mg/kg, soil DTPA-Cd contents are 0.17mg/kg；Organic acid content in the contaminated soil that cadmium concentration is 2.5mg/kg
For 122.73mg/kg, soil CaCl2- Cd contents are 1.32mg/kg, and soil DTPA-Cd contents are 1.61mg/kg, with work
Mode cultivates witloof with white clover in both cadmium pollution soils, includes the following steps：
(1) October the previous year (autumn) carries out site preparation to cadmium pollution soil, and application promotes witloof and white clover
The nitrogen-phosphorus-potassium compound fertilizer and organic fertilizer of root growth, the wherein applied amount of nitrogen-phosphorus-potassium compound fertilizer are 30kg/ mus, and N P and K is compound
N, P in fertilizer2O5、K2The weight ratio of O is 15: 10: 10, and the applied amount of organic fertilizer (commercially available) is 480kg/ mus.
(2) by make in a manner of will witloof and white clover plantation in step (1) in apply fertilizer cadmium pollution soil in,
Line-spacing between witloof and white clover is 20cm, and wherein witloof is sowed with drilling method, spacing in the rows 10cm, and application rate is
1.5kg/ mu；White clover is sowed with drilling method, spacing in the rows 10cm, and application rate is 1kg/ mus.According to growth side naturally
Formula cycle growth, it is regular to carry out water consumpation management, keep soil moisture content the 65% of maximum water-holding capacity, up to witloof and in vain
Clover is ripe, completes the reparation to cadmium pollution soil.
Plant harvest period and harvesting method：Witloof and Bai Che are harvested respectively in May of next year by a repairing efficiency
Axis meadow top.It is 7411kg/ mus of (0.3mg/kg cadmium dirts to weigh witloof overground part fresh weight under witloof-white clover intercropping system
Contaminate soil) and 7344kg/ mus (2.5mg/kg cadmium pollution soils)；Aerial part (the straw of witloof and white clover are harvested respectively
Stalk), and the total cadmium content of aerial part is measured, as shown in Table 5-1；The rhizosphere of the Rhizosphere Soil and white clover of acquisition witloof respectively
Soil measures the total cadmium content of Rhizosphere Soil, as shown in table 5-2.
Make white clover and the total cadmium content of nonoculture mode overground part between table 5-1 witloofs
Make white clover and nonoculture mode rhizosphere organic acid content and the total cadmium content of Rhizosphere Soil between table 5-2 witloofs
It can be seen that under witloof-white clover intercropping mode from table 5-1, the total cadmium content of witloof overground part is higher than nonoculture chrysanthemum
Lettuce, the total cadmium content of white clover overground part are then less than nonoculture white clover；Make between can be seen that witloof-white clover from table 5-2
Under pattern, the total cadmium content of Rhizosphere Soil significantly reduces, and is below nonoculture witloof and nonoculture white clover, and rhizosphere organic acid content
It is above nonoculture witloof and nonoculture white clover.Consolidated statement 5-1 and table 5-2 it is found that the present invention by make in a manner of by witloof with
White clover is planted in cadmium pollution soil, using white clover to the activation of cadmium in cadmium pollution soil, improves white axle
The content of grass roots border soil available Cd reaches the effect of activating soil cadmium, while using witloof to the available state in soil
Cadmium is absorbed, and uptake of the witloof to soil available Cd can not only be improved, and improves repairing effect, and inhale by witloof
Influence of the available Cd to white clover growth and development can also be reduced by receiving the available Cd in more soil, to ensure witloof
Under the premise of white clover normal growth, the yield of witloof and white clover is maintained, it is excellent to have that repairing effect is good, income is high etc.
Point has good environmental benefit, Social benefit and economic benefit, this demonstrates witloof-white clover intercropping mode to soil
The activation capacity of cadmium is strong and extractability is strong, while showing that witloof-white clover intercropping mode dives to cadmium pollution soil repair
Power is huge.
Embodiment 6：
A kind of combined plant restorative procedure of cadmium pollution soil repair, is specially repaiied using the combination of witloof and Lupinus albus
Multiple cadmium pollution soil, wherein test site are located at Changsha, Hunan Liuyang City, soil cadmium concentration be respectively 0.5mg/kg with
5.0mg/kg, organic acid content is 113.14mg/kg, soil CaCl in the contaminated soil that cadmium concentration is 0.5mg/kg2- Cd contents
For 0.08mg/kg, soil DTPA-Cd contents are 0.21mg/kg；Organic acid content in the contaminated soil that cadmium concentration is 5.0mg/kg
For 106.92mg/kg, soil CaCl2- Cd contents are 2.28mg/kg, and soil DTPA-Cd contents are 2.51mg/kg, with work
Mode cultivates witloof with Lupinus albus in both cadmium pollution soils, includes the following steps：
(1) October the previous year (autumn) carries out site preparation to cadmium pollution soil, and application promotes witloof and Lupinus albus
The nitrogen-phosphorus-potassium compound fertilizer and organic fertilizer of root growth, the wherein applied amount of nitrogen-phosphorus-potassium compound fertilizer are 30kg/ mus, and N P and K is compound
N, P in fertilizer2O5、K2The weight ratio of O is 15: 10: 10, and the applied amount of organic fertilizer (commercially available) is 480kg/ mus.
(2) by make in a manner of will witloof and Lupinus albus plantation in step (1) in apply fertilizer cadmium pollution soil in,
Line-spacing between witloof and Lupinus albus is 30cm, and wherein witloof is sowed with drilling method, spacing in the rows 15cm, and application rate is
1.5kg/ mu；Lupinus albus is sowed with drilling method, spacing in the rows 15cm, and application rate is 3.5kg/ mus.According to natural growth
Mode cycle growth periodically carries out water consumpation management, keeps soil moisture content the 70% of maximum water-holding capacity, until witloof and
Lupinus albus is ripe, completes the reparation to cadmium pollution soil.
Plant harvest period and harvesting method：After a repairing efficiency, witloof and Lupinus albus plant are harvested respectively
Overground part.It is 7408kg/ mus of (0.5mg/kg cadmium pollution soil to weigh witloof overground part fresh weight under witloof-Lupinus albus intercropping system
Earth) and 7260kg/ mus (5.0mg/kg cadmium pollution soils)；Aerial part (pod, the straw of witloof and Lupinus albus are harvested respectively
Stalk), and the total cadmium content of aerial part is measured, as shown in Table 6-1；Witloof Rhizosphere Soil and Lupinus albus Rhizosphere Soil are acquired respectively, are surveyed
Fixed two kinds of total cadmium contents of Rhizosphere Soil, as shown in table 6-2.
Make Lupinus albus and the total cadmium content of nonoculture mode overground part between table 6-1 witloofs
Make Lupinus albus and nonoculture mode rhizosphere organic acid content and the total cadmium content of Rhizosphere Soil between table 6-2 witloofs
It can be seen that under witloof-Lupinus albus intercropping mode from table 6-1, the total cadmium content of witloof overground part is higher than nonoculture
Witloof, the total cadmium content of Lupinus albus overground part are then less than nonoculture Lupinus albus；It can be seen that from table 6-2 in witloof-Lupinus albus
Under intercropping mode, the total cadmium content of Rhizosphere Soil significantly reduces, and is below nonoculture witloof and nonoculture Lupinus albus, and rhizosphere organic acid
Content is above nonoculture witloof and nonoculture Lupinus albus.Consolidated statement 6-1 and table 6-2 it is found that the present invention in a manner of making by chrysanthemum
Lettuce is planted in Lupinus albus in cadmium pollution soil, using Lupinus albus to the activation of cadmium in cadmium pollution soil, improves white
The content of available Cd in lupin rhizosphere soil reaches the effect of activating soil cadmium, while using witloof to having in soil
Effect state cadmium is absorbed, and uptake of the witloof to soil available Cd can not only be improved, and improves repairing effect, and pass through chrysanthemum
Lettuce, which absorbs the available Cd in more soil, can also reduce influence of the available Cd to Lupinus albus growth and development, to ensure
Under the premise of witloof and Lupinus albus normal growth, the yield of witloof and Lupinus albus is maintained, has that repairing effect is good, income is high
The advantages that, there are good environmental benefit, Social benefit and economic benefit, this demonstrates witloof-Lupinus albus intercropping mode pair
The activation capacity of Cadmium in Soil is strong and extractability is strong, while showing witloof-Lupinus albus intercropping mode to cadmium pollution soil repair
Have a high potential.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example.All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It is noted that for the art
Those of ordinary skill for, improvements and modifications without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of combined plant restorative procedure of cadmium pollution soil repair, which is characterized in that the combined plant restorative procedure packet
Include following steps：Witloof is planted in cadmium pollution soil with legume in a manner of work to cultivate, is completed to cadmium pollution
The reparation of soil.
2. combined plant restorative procedure according to claim 1, which is characterized in that between the witloof and legume
Line-spacing is 20cm~40cm.
3. combined plant restorative procedure according to claim 2, which is characterized in that the witloof is with drilling method by chrysanthemum
Lettuce seed is sowed in cadmium pollution soil；The sowing spacing in the rows of the chicory seed is 10cm~15cm.
4. combined plant restorative procedure according to claim 3, which is characterized in that the application rate of the witloof is 1kg/ mus
~1.5kg/ mus.
5. combined plant restorative procedure according to claim 2, which is characterized in that the legume is Vicia sativa, silkworm
At least one of beans, pea, Chinese milk vetch, white clover, Lupinus albus.
6. combined plant restorative procedure according to claim 5, which is characterized in that the legume is broad bean, pea
When, seeds of leguminous plant is sowed in cadmium pollution soil with broadcast mode；The sowing spacing in the rows of the seeds of leguminous plant is
10cm~20cm；The application rate of the broad bean is 5.5kg/ mus~7kg/ mus；The application rate of the pea be 5.5kg/ mus~
8kg/ mus.
7. combined plant restorative procedure according to claim 5, which is characterized in that the legume is Vicia sativa, purple
When Yun Ying, white clover, Lupinus albus, seeds of leguminous plant is sowed in cadmium pollution soil with drilling method；The pulse family
The sowing spacing in the rows of vegetable seeds is 10cm~20cm；The application rate of the Vicia sativa is 3kg/ mus~4kg/ mus；The Chinese milk vetch
Application rate be 1kg/ mus~2kg/ mus；The application rate of the white clover is 0.5kg/ mus~1kg/ mus；The Lupinus albus
Application rate be 3kg/ mus~4kg/ mus.
8. combined plant restorative procedure according to any one of claims 1 to 7, which is characterized in that the cadmium pollution soil
The initial concentration of cadmium is 0.3mg/kg~5.0mg/kg in earth.
9. combined plant restorative procedure according to any one of claims 1 to 7, which is characterized in that the legume
In the fall or winter planting；The culture is carried out according to plant nature growth pattern；Cadmium pollution soil is kept in the incubation
Earth water content is the 65%~75% of maximum water-holding capacity；Further include applying composite fertilizer into cadmium pollution soil in the incubation
And organic fertilizer.
10. combined plant restorative procedure according to claim 9, which is characterized in that the applied amount of the composite fertilizer is
25kg/ mus~35kg/ mus；N, P in the composite fertilizer2O5、K2The weight ratio of O is 15: 10: 10；The applied amount of the organic fertilizer is
450kg/ mus~500kg/ mus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901759.5A CN108787724A (en) | 2018-08-09 | 2018-08-09 | A kind of combined plant restorative procedure of cadmium pollution soil repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901759.5A CN108787724A (en) | 2018-08-09 | 2018-08-09 | A kind of combined plant restorative procedure of cadmium pollution soil repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108787724A true CN108787724A (en) | 2018-11-13 |
Family
ID=64079647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810901759.5A Pending CN108787724A (en) | 2018-08-09 | 2018-08-09 | A kind of combined plant restorative procedure of cadmium pollution soil repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108787724A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111108838A (en) * | 2019-11-22 | 2020-05-08 | 广州草木蕃环境科技有限公司 | Method for repairing cadmium-polluted rice field by intercropping sedum alfredii and astragalus sinicus |
| CN114042749A (en) * | 2021-11-15 | 2022-02-15 | 中南林业科技大学 | Method for zero-tillage remediation of heavy metal contaminated farmland by interplanting astragalus mongholicus with grassiness |
| CN114309055A (en) * | 2022-01-04 | 2022-04-12 | 山西农业大学资源环境学院 | Heavy metal restoration ecological system for improving soil organic matter level and restoration method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006075821A (en) * | 2004-08-09 | 2006-03-23 | Kochi Univ | Method for removing and recovering heavy metal in soil |
| JP2008289954A (en) * | 2007-05-22 | 2008-12-04 | Osaka Prefecture Univ | Method for removing heavy metal present in salt-containing soil |
| CN101780466A (en) * | 2010-02-11 | 2010-07-21 | 仲恺农业工程学院 | Method for restoring soil polluted by heavy metal cadmium by using mesquite |
| JP2011036744A (en) * | 2009-08-06 | 2011-02-24 | Akita Prefectural Univ | Accelerator for heavy metal absorption into plant and method of purifying soil |
| CN102658289A (en) * | 2012-05-18 | 2012-09-12 | 西南科技大学 | Method for enhancing capacity of repairing soil polluted by uranium or/and cadmium of broad bean by using fertilizer |
| CN105750314A (en) * | 2016-05-10 | 2016-07-13 | 湖南农业大学 | Method for improving capability of endives for removing cadmium from heavy-metal-polluted soil by using fertilization and harvesting techniques |
| CN105921511A (en) * | 2016-05-10 | 2016-09-07 | 湖南农业大学 | Method for repairing soil heavy metal cadmium pollution through endive-oil sunflower crop rotation mode |
| CN105964682A (en) * | 2016-05-10 | 2016-09-28 | 湖南农业大学 | Method for restoring soil heavy metal cadmium pollution by use of herba cichorii |
-
2018
- 2018-08-09 CN CN201810901759.5A patent/CN108787724A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006075821A (en) * | 2004-08-09 | 2006-03-23 | Kochi Univ | Method for removing and recovering heavy metal in soil |
| JP2008289954A (en) * | 2007-05-22 | 2008-12-04 | Osaka Prefecture Univ | Method for removing heavy metal present in salt-containing soil |
| JP2011036744A (en) * | 2009-08-06 | 2011-02-24 | Akita Prefectural Univ | Accelerator for heavy metal absorption into plant and method of purifying soil |
| CN101780466A (en) * | 2010-02-11 | 2010-07-21 | 仲恺农业工程学院 | Method for restoring soil polluted by heavy metal cadmium by using mesquite |
| CN102658289A (en) * | 2012-05-18 | 2012-09-12 | 西南科技大学 | Method for enhancing capacity of repairing soil polluted by uranium or/and cadmium of broad bean by using fertilizer |
| CN105750314A (en) * | 2016-05-10 | 2016-07-13 | 湖南农业大学 | Method for improving capability of endives for removing cadmium from heavy-metal-polluted soil by using fertilization and harvesting techniques |
| CN105921511A (en) * | 2016-05-10 | 2016-09-07 | 湖南农业大学 | Method for repairing soil heavy metal cadmium pollution through endive-oil sunflower crop rotation mode |
| CN105964682A (en) * | 2016-05-10 | 2016-09-28 | 湖南农业大学 | Method for restoring soil heavy metal cadmium pollution by use of herba cichorii |
Non-Patent Citations (10)
| Title |
|---|
| 况武等: "白三叶在铜、镉、铅复合污染土壤修复上的应用", 《能源工程》 * |
| 卫泽斌等: "间套作体系在污染土壤修复中的应用研究进展", 《农业环境科学学报》 * |
| 张杏锋等: "牧草对重金属污染土壤的植物修复综述", 《生态学杂志》 * |
| 李侠等: "不同植物组合对煤矸石混合土中镉的吸收效应", 《中国农业气象》 * |
| 李希铭等: "35份草本植物镉吸收与富集特征比较", 《草业科学》 * |
| 毛海立等: "重金属镉超富集、富集植物筛选的研究进展", 《黔南民族师范学院学报》 * |
| 王文军等: "紫云英对镉富集效应研究", 《安徽农业科学》 * |
| 许毅涛等: "铅锌冶炼厂周边农田土壤、苕子与荠菜的重金属污染特征", 《安全与环境学报》 * |
| 郭世财等: "重金属污染土壤的植物修复技术研究进展", 《西北林学院学报》 * |
| 陈璘涵等: "2种轮作模式对镉污染土壤修复潜力的比较", 《环境工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111108838A (en) * | 2019-11-22 | 2020-05-08 | 广州草木蕃环境科技有限公司 | Method for repairing cadmium-polluted rice field by intercropping sedum alfredii and astragalus sinicus |
| CN114042749A (en) * | 2021-11-15 | 2022-02-15 | 中南林业科技大学 | Method for zero-tillage remediation of heavy metal contaminated farmland by interplanting astragalus mongholicus with grassiness |
| CN114309055A (en) * | 2022-01-04 | 2022-04-12 | 山西农业大学资源环境学院 | Heavy metal restoration ecological system for improving soil organic matter level and restoration method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Maize/peanut intercropping increases photosynthetic characteristics, 13C-photosynthate distribution, and grain yield of summer maize | |
| Fageria et al. | Response of lowland rice and common bean grown in rotation to soil fertility levels on a varzea soil | |
| Yeptho et al. | Quality production of kharif onion (Allium cepa) in response to biofertilizers inoculated organic manures | |
| Zhang et al. | Studies on the root characteristics of maize varieties of different eras | |
| CN108787724A (en) | A kind of combined plant restorative procedure of cadmium pollution soil repair | |
| CN109804765A (en) | A kind of fertilizing method of Queensland nut bio-bacterial manure | |
| CN108856265A (en) | A method of using making leguminous plant cadmium pollution soil repair between rape | |
| CN106818157A (en) | A kind of implantation methods of cowpea | |
| CN112273172A (en) | Chinese herbal medicine extraction nutrient solution, preparation method and ecological planting method | |
| CN102260116A (en) | Plant nutrient containing oligosaccharide and organic silicon | |
| CN101003737A (en) | Activator for phosphor element of soil | |
| CN110367065A (en) | Polygonatum cyrtonema-corn composite plant method | |
| CN111842478A (en) | Method for repairing cadmium-polluted farmland on production side | |
| CN104892143B (en) | Biological organic fertilizer and preparation method thereof | |
| CN103229694A (en) | Method for improving survival rate of trees in planting stage in arid areas | |
| CN107365199A (en) | Utilize the method for the special vinasse biological organic fertilizer of the anti-mosaic disease flue-cured tobacco of Luzhou vinasse system | |
| CN112998137A (en) | Method for making high-quality silage by mixed sowing and mixed storing of sweet sorghum and sweet clover in saline-alkali soil | |
| CN108787725A (en) | A method of utilizing plant activated cadmium Cadium In Polluted Soil | |
| Toomsan et al. | Role of legumes in improving soil fertility and increasing crop productivity in Northeast Thailand | |
| Haque et al. | Nutrient management | |
| Zhetkergenkyzy et al. | Yield, fodder value and biologization of soil fertility increase with legume crops in the south-east of Kazakhstan | |
| CN106900317A (en) | A kind of cultural method of oil tea row interplant fiddlehead | |
| CN107646350A (en) | A kind of packet type corn intercropping and interplanting implantation methods | |
| Harsono et al. | The increase of Ultisol productivity based on intercropping cassava with peanut and soybean | |
| CN106665237A (en) | High-yield planting method for interplanting peanuts in pomegranate orchard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
|
| RJ01 | Rejection of invention patent application after publication |