CN104031649B - A kind of soil conditioner for hindering the zinc accumulation of control pakchoi heavy metal arsenic - Google Patents
A kind of soil conditioner for hindering the zinc accumulation of control pakchoi heavy metal arsenic Download PDFInfo
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- CN104031649B CN104031649B CN201410230381.2A CN201410230381A CN104031649B CN 104031649 B CN104031649 B CN 104031649B CN 201410230381 A CN201410230381 A CN 201410230381A CN 104031649 B CN104031649 B CN 104031649B
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- pakchoi
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- 239000003516 soil conditioner Substances 0.000 title claims abstract description 52
- 244000221633 Brassica rapa subsp chinensis Species 0.000 title claims abstract description 46
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 title claims abstract description 46
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 36
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000011701 zinc Substances 0.000 title claims abstract description 26
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 22
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 16
- 238000009825 accumulation Methods 0.000 title claims abstract description 10
- 239000002689 soil Substances 0.000 claims abstract description 42
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 36
- 241000255789 Bombyx mori Species 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 240000000249 Morus alba Species 0.000 claims abstract description 19
- 235000008708 Morus alba Nutrition 0.000 claims abstract description 19
- 239000000292 calcium oxide Substances 0.000 claims abstract description 18
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 18
- 239000000378 calcium silicate Substances 0.000 claims abstract description 15
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 15
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003337 fertilizer Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- CVXNLQMWLGJQMZ-UHFFFAOYSA-N arsenic zinc Chemical compound [Zn].[As] CVXNLQMWLGJQMZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 230000009467 reduction Effects 0.000 abstract description 10
- 230000006872 improvement Effects 0.000 abstract description 5
- 231100000572 poisoning Toxicity 0.000 abstract description 4
- 230000000607 poisoning effect Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000002028 Biomass Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 4
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 239000004113 Sepiolite Substances 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000011499 joint compound Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 229910052624 sepiolite Inorganic materials 0.000 description 2
- 235000019355 sepiolite Nutrition 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 235000010716 Vigna mungo Nutrition 0.000 description 1
- 240000001417 Vigna umbellata Species 0.000 description 1
- 235000011453 Vigna umbellata Nutrition 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001495 arsenic compounds Chemical class 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000002374 bone meal Substances 0.000 description 1
- 229940036811 bone meal Drugs 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000783 metal toxicity Toxicity 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004016 soil organic matter Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of soil conditioner for hindering the zinc accumulation of control pakchoi heavy metal arsenic, the soil conditioner is silkworm excrement, mulberry leaf residuum, quick lime, the mixture of calcium silicate fertilizer, and each component weight fraction ratio is 1：2：2：1；The pre-treating method of the soil conditioner is：The shady and cool place taken shelter from rain is deposited in after the natural mixture of silkworm excrement, mulberry leaf residuum, quick lime is collected, is stacked 56 months, is air-dried, is crushed, particle diameter<2mm, is mixed in the ratio.This method is planted the contaminated soil used to pakchoi using soil conditioner and improved, soil plantation pakchoi after improvement, the reduction of its overground part arsenic Zn content is obvious, make the arsenic content of pakchoi qualified, reduce murder by poisoning of the arsenic zinc to pakchoi simultaneously, little Bai growth is greatly facilitated, pakchoi is obtained high yield.
Description
Technical field
The invention belongs to environmental pollution improvement and agricultural product quality and safety technical field, a kind of resistance control little Bai is specifically disclosed
The soil conditioner of dish heavy metal arsenic zinc accumulation.
Background technology
China's heavy metal pollution farmland area accounts for the 1/5 of cultivated area up to 20,000,000 hectares.Subtract every year because of soil pollution
Few grain yield is up to 10,000,000 t, and direct economic loss is up to more than 100 hundred million yuan.The exploitation of arsenic and the metal containing arsenic, smelting, use arsenic
Or arsenic compound make the processes such as glass, pigment, active compound, the production of paper and the burning of coal of raw material generation arsenic-containing waste water,
Waste gas and waste residue, and the agricultural chemicals containing arsenic use, all can polluted farmland soil.Arsenic is accumulated in agricultural land soil, on the one hand to agriculture
Crop produces murder by poisoning, causes the underproduction, after on the other hand being absorbed by crops, enters human body by food chain, causes in human body arsenic
Poison.Although zinc be the necessary element of crops, but zinc content in soil it is too high when can also produce inhibitory action to crop growth.
Therefore the improvement of heavy metal arsenic and Grown In Zinc Contaminated Soil has aroused extensive attention at home and abroad, and its control is very urgent.
It is by improving soil quality, reducing the absorption of plant heavy metal, promote plant life using soil conditioner
It is long, it is ensured that a kind of highly effective measure of heavy metal pollution farmland agricultural product quality and safety.The species of soil conditioner is a lot,
It common are lime, red mud, flyash, zeolite, sepiolite, bentonite, calcium magnesium phosphate, calcium silicate fertilizer etc..Geebelen etc. and
Castaldi etc., which is studied, to be shown, the absorption for adding energy precipitation of heavy metals or raising soil heavy metal of modifying agent, so as to reduce
The content of heavy metal available state, reduces the absorption and enrichment of plant heavy metal.But existing soil conditioner, such as sepiolite,
, there are some limitations in zeolite, coal ash, red mud, bone meal etc., be mainly manifested in high cost, be also easy to produce secondary dirt in actual applications
Dye, effectiveness phase short, destruction soil original structure etc..Therefore screening a kind of inexpensive, long-acting, environmentally friendly soil conditioner has weight
The meaning wanted.
Silkworm excrement, mulberry leaf residuum, quicklime mixture are Guangxi province kind Sang Yangcan discarded objects, are also a kind of local day
Right organic fertilizer.The report of early stage finds that soil pH, electrical conductivity and soil organic matter content can be effectively improved by singly applying silkworm excrement, while energy
Effectively reduction soil available lead, the content of cadmium, in acid soil, to lead passivation effect most preferably 6% peat, decrease by
59.38%, to cadmium passivation effect most preferably 6% silkworm excrement, decrease by 59.65%.But early-stage Study refers only to singly apply silkworm excrement
To the influence of lead, cadmium pollution soil in itself, the influence to crops is not provided, the last effect of modifying agent will see crops weight
The change of tenor.Silkworm excrement is separated from silkworm excrement, mulberry leaf residuum, quick lime natural mixture simultaneously needs the expense of taking a lot of work
Power, also produces certain discarded object.Calcium silicate fertilizer is also good modifying agent on As polluted soil simultaneously, in control plant absorption arsenic
Aspect plays critically important effect.Silkworm excrement is applied on the soil of arsenic and zinc combined pollution by present patent application first, and first
Combine the soil conditioner of calcium silicate fertilizer using the natural mixture of silkworm excrement, mulberry leaf residuum, quick lime controlling pakchoi to arsenic and
The absorption of zinc.The soil conditioner has the characteristic such as inexpensive, environment-friendly.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art part, there is provided one kind resistance control pakchoi heavy metal arsenic zinc
The soil conditioner of accumulation, this method is planted the contaminated soil used to pakchoi using soil conditioner and improved, and changes
Soil plantation pakchoi after good, its overground part arsenic Zn content reduction is obvious, makes the arsenic content of pakchoi qualified, reduces simultaneously
Murder by poisoning of the arsenic zinc to pakchoi, is greatly facilitated little Bai growth, pakchoi is obtained high yield.
The present invention is in order to realize the above object adopt the following technical scheme that：
A kind of soil conditioner for hindering the zinc accumulation of control pakchoi heavy metal arsenic, the soil conditioner is silkworm excrement, mulberry leaf are residual
Body, quick lime, the mixture of calcium silicate fertilizer, each component weight fraction ratio are 1：2：2：1；
The pre-treating method of the soil conditioner is：After the natural mixture of silkworm excrement, mulberry leaf residuum, quick lime is collected
The shady and cool place taken shelter from rain is deposited in, is stacked 5-6 months, is air-dried, crush, particle diameter<2mm；
Moreover, applying soil conditioner mass fraction by dry ground weight for 0.5-1.0wt%, every mu of consumption is 750-
1500kg。
Moreover, before arable land, soil conditioner is uniformly sprinkling upon into soil surface, then by artificial or rotary cultivator by soil
Earth modifying agent and upper soll layer soil 0-20cm fully mix after balance one week, then Planting Crops again.
Moreover, the calcium silicate fertilizer：Containing SiO222%th, CaO28%, MnO215%th, SO313%th, MgO9%, percentage by weight.
Moreover, preparation method is：Silkworm excrement after stacking, mulberry leaf residuum, quicklime mixture and calcium silicate fertilizer are pressed into the ratio
Example mixing.
Advantages of the present invention and have the beneficial effect that：
1st, this method is planted the contaminated soil used to pakchoi and improved using silkworm excrement, soil conditioner, after improvement
Soil plantation pakchoi, its overground part arsenic Zn content significantly reduces, and makes the arsenic content of pakchoi qualified, while reducing arsenic zinc
Murder by poisoning to pakchoi, is greatly facilitated little Bai growth, pakchoi is obtained high yield.
2nd, the soil conditioner that the present invention is used is silkworm excrement, mulberry leaf residuum, quick lime, the mixture of calcium silicate fertilizer, by tight
Diagrid selects the content of each component, the final optimal modifying agent for obtaining effectively reduction pakchoi arsenic Zn content, and contaminated soil is by changing
Qualified pakchoi can be planted out within continuous 3 years after good, land utilization ratio is improved.
3rd, soil conditioner of the invention has also carried out the measure of relevant experimental data to paddy rice, soybean, to confirm originally to change
Good dose of beneficial effect, can significantly reduce the content of the arsenic zinc in paddy rice and soybean kernel.
Brief description of the drawings
Fig. 1 applies influence of the soil conditioner to pakchoi the upperground part biomass for the present invention；
Fig. 2 applies influence of the soil conditioner to pakchoi underground part biomass for the present invention；
Fig. 3 applies influence of the soil conditioner to pakchoi overground part arsenic content for the present invention；
Fig. 4 applies influence of the soil conditioner to pakchoi underground part arsenic content for the present invention；
Fig. 5 applies influence of the soil conditioner to pakchoi overground part Zn content for the present invention；
Fig. 6 applies influence of the soil conditioner to pakchoi underground part Zn content for the present invention；
Fig. 7 applies influence of the soil conditioner to soil pH content for the present invention；
Fig. 8 applies influence of the soil conditioner to soil available Zn content for the present invention；
Fig. 9 applies influence of the soil conditioner to soil available arsenic content for the present invention；
All abscissas of above-mentioned accompanying drawing are the consumption of soil conditioner.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not limit
Qualitatively, it is impossible to which protection scope of the present invention is limited with this.
Percentage below the present invention is weight percentage, it is special indicate except.
A kind of soil conditioner and application process for hindering the zinc accumulation of control pakchoi heavy metal arsenic, including
Silkworm excrement, mulberry leaf residuum, quick lime, the mixture of calcium silicate fertilizer, weight fraction ratio are 1：2：2：1,
Wherein silkworm excrement, mulberry leaf residuum, quick lime natural mixture are agricultural exhaust thing in silkworm and mulberry main producing region, are typically made organic
Fertilizer is used, and using Traditional compost method, is deposited in what cool place was taken shelter from rain after silkworm excrement, mulberry leaf residuum, quick lime natural mixture are collected
Place, stacks 5-6 months, air-dries, crush, particle diameter<2mm.Then (SiO is contained with powdery calcium silicate fertilizer222%th, CaO28%,
MnO215%th, SO313%th, MgO9%) mixed in the ratio.
Conditioner applies scope：
Acid (pH5.0-6.0), heavy metal arsenic, Grown In Zinc Contaminated Soil；
Conditioner amount of application and application process：
Soil conditioner mass fraction is applied for 0.5-1.0% by dry ground weight, and every mu of consumption changes for 750-1500kg soil
Good dose.
Before arable land, soil conditioner is uniformly sprinkling upon soil surface, then changed soil by artificial or rotary cultivator
Good dose fully mixed with upper soll layer native (0-20cm) after balance one week, then Planting Crops again.
The improvement principle of modifying agent of the present invention is：
Silkworm excrement, mulberry leaf residuum, quick lime natural mixture are fermented in the stacking process of 5-6 months, stack hair
It is manured into soil, the natural mixture of silkworm excrement, mulberry leaf residuum and quick lime significantly improves the pH and organic matter of soil, promotes after ferment
Pakchoi fast-growth, so as to serve diluting effect to the arsenic Zn content in pakchoi body.In addition, the reduction of Zn content is also
Cause the reduction of ZINC IN SOIL available state relevant with using soil conditioner.But also promote while triplicity application raising pH
Make the small size increase of effective arsenic in soil, and absorption and transhipment of the pakchoi to arsenic can partly be suppressed by applying calcium silicate fertilizer,
Tested and found by relevant comparative, silkworm excrement, mulberry leaf residuum and the natural mixture of quick lime and other species soil conditioners are (such as
Red mud, flyash, calcium magnesium phosphate, charcoal) combine after to the inhibition of the accumulation arsenic of pakchoi be not as good as calcium silicate fertilizer, therefore
The application is reached in reduction pakchoi by improving the speed of growth of pakchoi and suppressing arsenic absorption and two aspects of transhipment
Heavy metal As contents, it is larger with method divergence of the prior art.
Related data is detected
Soil conditioner application effect (pot experiment)：
As shown in figures 1 to 6, dramatically increased using pakchoi overground part after soil conditioner and underground part biomass, arsenic, zinc
Content is remarkably decreased.The upperground part biomass of pakchoi apply 0.5,1.0 and 2.0% 3 concentration soil conditioner it
Between there is no a significant changes, but apply 2.0% soil conditioner 0.5% He be significantly lower than to the facilitation of pakchoi underground part
1.0% amount of application；These results indicate that using growth and reduction pakchoi that pakchoi can be remarkably promoted after soil conditioner
Content of beary metal in body, and it is optimal with 0.5-1.0% amount of application.
In addition, using soil conditioner to the growth-promoting functions of pakchoi with applying modifying agent raising soil pH value and alleviating small
The heavy metal toxicity of Chinese cabbage is relevant.And using soil conditioner can reduce in pakchoi body heavy metal arsenic enrichment mainly with administration
Soil conditioner promotes diluting effect caused by growth relevant, and wherein the reduction of Zn content using soil conditioner also with causing
The reduction of ZINC IN SOIL available state is relevant (see Fig. 7-9).
Claims (2)
1. a kind of soil conditioner for hindering the zinc accumulation of control pakchoi heavy metal arsenic, it is characterised in that：
The soil conditioner is silkworm excrement, mulberry leaf residuum, quick lime, the mixture of calcium silicate fertilizer, each component weight fraction ratio
Example is 1：2：2：1；
The pre-treating method of the soil conditioner is：Stacked after the natural mixture of silkworm excrement, mulberry leaf residuum, quick lime is collected
The place taken shelter from rain in cool place, stacks 5-6 months, air-dries, crush, particle diameter<2mm；
The calcium silicate fertilizer：Containing SiO222%th, CaO28%, MnO215%th, SO313%th, MgO9%, percentage by weight；
Application method：Before arable land, soil conditioner is uniformly sprinkling upon soil surface, then by artificial or rotary cultivator by soil
Earth modifying agent and upper soll layer soil 0-20cm fully mix after balance one week, then Planting Crops again；
Conditioner applies scope：Acid pH 5.0-6.0, heavy metal arsenic, Grown In Zinc Contaminated Soil；
Conditioner amount of application and application process：
Soil conditioner mass fraction is applied for 0.5-1.0% by dry ground weight, and every mu of consumption is 750-1500kg soil conditioners.
2. the soil conditioner of resistance control pakchoi heavy metal arsenic zinc accumulation according to claim 1, it is characterised in that：Prepare
Method is：Silkworm excrement after stacking, mulberry leaf residuum, quicklime mixture and calcium silicate fertilizer are mixed in the ratio.
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| CN201410230381.2A CN104031649B (en) | 2014-05-28 | 2014-05-28 | A kind of soil conditioner for hindering the zinc accumulation of control pakchoi heavy metal arsenic |
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| CN105542781B (en) * | 2015-12-14 | 2019-03-19 | 百色学院 | Heavy metal contaminated soil conditioner and preparation method thereof |
| CN106077054A (en) * | 2016-06-12 | 2016-11-09 | 陆晓辉 | A kind of formula reducing Radix Raphani absorption heavy metal cadmium |
| CN106607452A (en) * | 2016-11-22 | 2017-05-03 | 湖南省土壤肥料研究所 | Conditioner for repairing medium-light acidic cadmium-contaminated soil, preparation method and application |
| CN107413830A (en) * | 2017-06-08 | 2017-12-01 | 广西大学 | A kind of agricultural land soil processing method for reducing Cd concentration of brown rice |
| CN108277017B (en) * | 2018-03-20 | 2019-11-08 | 广西大学 | It is a kind of to reduce heavy metal in soil arsenic, the soil conditioner of antimony available state and its application method |
| CN109570226B (en) * | 2018-11-27 | 2021-03-02 | 林西金易来砷业有限公司 | Medicament for preventing arsenic from spreading pollution in arsenic-resistant plants and use method thereof |
| CN112219703A (en) * | 2020-10-28 | 2021-01-15 | 武汉市秀谷科技有限公司 | Planting and cultivating method aiming at low accumulation of heavy metals in farmland |
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| CN102719255A (en) * | 2012-07-03 | 2012-10-10 | 广西大学 | Preparation and application method of soil heavy metal composite passivating agent |
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| CN102719255A (en) * | 2012-07-03 | 2012-10-10 | 广西大学 | Preparation and application method of soil heavy metal composite passivating agent |
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| Title |
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| 不同钝化剂对土壤有效态铅和镉含量的影响;黎大荣等;《环境保护科学》;20130503;第39卷(第3期);第1.2、2.1、2.2、2.3节以及第3、4部分 * |
| 广西土壤重金属污染修复概况分析;黎大荣等;《大众科技》;20131220;第15卷(第172期);第80-82页 * |
| 施用硅肥对芥蓝产量和品质的影响;胡京昂等;《中国瓜菜》;20110705;第24卷(第4期);第1.1、2.3节以及第3部分第1段 * |
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