CN106083391A - A kind of rhizosphere resistance control agent preparation method and application reducing Semen vignae sinensis cadmium content - Google Patents
A kind of rhizosphere resistance control agent preparation method and application reducing Semen vignae sinensis cadmium content Download PDFInfo
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- CN106083391A CN106083391A CN201610493323.8A CN201610493323A CN106083391A CN 106083391 A CN106083391 A CN 106083391A CN 201610493323 A CN201610493323 A CN 201610493323A CN 106083391 A CN106083391 A CN 106083391A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Soil Sciences (AREA)
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Abstract
The invention discloses a kind of rhizosphere resistance control agent preparation method and application reducing Semen vignae sinensis cadmium content, it is made up of a certain proportion of calcium chloride, potassium silicate, potassium fulvate, tealeaf extract, water, and step is: A, weigh calcium chloride in proportion, potassium silicate water dissolves；B, weighing tea grounds and be placed in water, boiling water boils, and is cooled to room temperature, filters, discards tea grounds, and solution continues to boil, for tealeaf extract；C, weigh potassium fulvate amount；Tealeaf extract is mixed homogeneously with potassium fulvate；D, by the calcium chloride of dissolving, potassium silicate, tealeaf extract and potassium fulvate being mixed, stir, use water constant volume, it is thus achieved that mixture, for a kind of pouring root type cadmium resistance control agent.This agent application in Semen vignae sinensis is kept the safety in production.The constituent of resistance control agent is easily obtained, easy to operation；Effect is obvious, significantly reduces the cadmium content in plant；Environment is not resulted in pollution.Effectively reducing cadmium content in Semen vignae sinensis, the amplitude of reducing is 7.58%～24.24%, improves the nutritional quality of Semen vignae sinensis.
Description
Technical field
The invention belongs to agricultural environment child care and recovery technique field, be more particularly to one and Semen vignae sinensis fruit cadmium content is entered
Row controlling agent, also relates to a kind of preparation method that Semen vignae sinensis fruit cadmium content is controlled agent, further relates to a kind of pouring root type
The purposes of cadmium resistance control agent, it is adaptable to vegetable plot, outskirts of a town is slight cadmium pollution soil.
Background technology
Owing to Metallurgical Factory and Cadmium treated factory rely on urban development, add that population of city districts is intensive, plough limited etc.
Reason, the agricultural product such as the agricultural product of suburban area particularly vegetable become the main source of each big city vegetable supply.But along with
Being poured into of various municipal refuses and sewage, and outskirts of a town vegetable grower is for pursuing maximum return and excessive fertilization, uses surrounding city simultaneously
Water source is irrigated, and all factors cause suburb soil cadmium content to increase, and urban vegetable cadmium excessive problem occurs in succession, Ha Er
There is the report of cadmium pollution on the ground such as shore, zhuzhou,hunan and the western Hunan, Guangdong, Guangxi, Guizhou, Sichuan, Foochow, Zhejiang.Feng Hongyan exists
The pollution situation of aluminum cadmium in Jiangsu Province Thallus Porphyrae being carried out Risk Monitoring in 2014, the exceeding standard rate (studying and judging value≤0.2mg/kg) of cadmium reaches
To 89.5%；Qin Zhiying etc. (2007) show Nanning City's vegetable exceeding standard rate to city, Guangxi 5 agricultural product lead cadmium pollution analysis result
It is 24.3%；Tang's book sources in 2002 etc. gather 349 vegetable samples in small towns, 42, district, 29, Chongqing City and carry out quality safety
Research, show that the exceeding standard rate of cadmium is 11.5% and leaf vegetables exceeds standard the most serious conclusion, and result above shows China's vegetable plot soil
Earth and vegetable cadmium pollution ratio are more serious, and vegetable cadmium pollution is administered extremely urgent.
The improvement of the outer heavy-metal contaminated soil of Present Domestic has two kinds of different approach: one is fixing or heavy metal-passivated,
Available state is converted into invalid state, makes the valid density of heavy metal-polluted soil be reduced to harmless level, thus reduce a soil huge sum of money
Belong to the bio-toxicity of element, control heavy metal and enter food chain and pollute surrounding enviroment (Ling Weiwei 2011；Tian Weidong 2008)；Two
It is activation heavy metal, by promoting that bio-absorbable improves the removal efficiency of heavy metal-polluted soil, makes the total amount of heavy metal-polluted soil reduce
To harmless level (Siegel S M et al 1986；Zeng M et al 2008；Zeng Min etc. 2005).At present, Calx, stove
The cadmium that the alkaline matters such as slag are passivated in soil because it can improve soil pH value, effect be widely used rapidly and with
It is main that base is executed, but these materials of chronic administration can cause soil compaction, be not the most solve cadmium pollution problem basic it
Method.Along with the development of agricultural, the mechanical agricultural measures of various agricultural advanced persons emerges in an endless stream, and executes the resistance control agent of type cadmium compared to base, fills
The resistance control agent of root type cadmium has more preferable development prospect.
Summary of the invention
The purpose of the present invention is that and overcomes existing base to execute type cadmium resistance control agent Shortcomings, is to there are provided a kind of pouring root
The resistance control agent of type cadmium, this pouring root type cadmium resistance control main component silicon of agent, calcium are the nutrient molecule required for vegetable, potassium fulvate and tea
Slag extract can improve soil physics structure, may additionally facilitate the Nutrient Absorption energy of plant in addition to having the transferance of suppression cadmium
Power, and this formula is reasonable, easy to use.
Another object of the present invention is the preparation method that there are provided the resistance control agent of a kind of pouring root type cadmium, easy to implement the method,
Cadmium resistance control agent stable in properties easy and simple to handle, it is not necessary to complicated production technology, prepared, can be widely used in heavy metal
Cadmium pollution improvement aspect.
A further object of the invention is to there are provided a kind of pouring root type cadmium resistance control agent answering in Semen vignae sinensis is kept the safety in production
With, it is suitable for the vegetable plot of slight cadmium pollution, is possible not only to suppress vegetable to Cadmium accumulation, it is also possible to improve quality of vegetable.
In order to realize above-mentioned purpose, the present invention uses techniques below measure:
Basic ideas of the present invention are: vegetable plot, outskirts of a town is a city " vegetable basket ", the cadmium pollution serious harm of vegetable plot, outskirts of a town
Urbanite's is healthy, affects social stability.Existing base is executed the resistance control agent of type cadmium and be there is organic resistance control agent effect not
Persistently, inorganic resistance control agent amount of application is big, easily cause the problems such as soil compaction, how to screen that a kind of ratio is suitable, take effect rapidly and
The resistance control agent combination being free from side effects is the most important thing of cadmium resistance control agent research.Therefore, the present invention is by organic resistance control agent and tool
The inorganic resistance control agent having control cadmium effect combines, and improves embodiment, filters out one and more greatly reduce vegetable field top cadmium
The pouring root type cadmium resistance control agent of content.
Agent is controlled in a kind of pouring root type cadmium resistance, and it is made up of the raw material of following weight portion:
Calcium chloride and potassium silicate are analytical pure or chemically pure reagent；
Water is distilled water or tap water.
Agent is controlled in a kind of pouring root type cadmium resistance, and it is made up (preferably scope) of the raw material of following weight portion:
Agent is controlled in a kind of pouring root type cadmium resistance, and it is made up (preferable scope) of the raw material of following weight portion:
Agent is controlled in a kind of pouring root type cadmium resistance, and it is made up (best scope) of the raw material of following weight portion:
Agent is controlled in a kind of pouring root type cadmium resistance, and it is made up (optimum) of the raw material of following weight portion:
The preparation method of a kind of pouring root type cadmium resistance control agent, the steps include:
A, weigh calcium chloride in proportion, potassium silicate water dissolves；
B, weighing 120g tea grounds and be placed in 500ml water, boiling water boils 9-11min, be cooled to room temperature (20-25 DEG C, following phase
With), filtering, discard tea grounds, gained solution continues to boil to 100ml, is required tealeaf extract；
C, weigh required potassium fulvate in proportion；A certain proportion of tealeaf extract is mixed homogeneously with potassium fulvate；
D, by the calcium chloride of dissolving, potassium silicate, tealeaf extract and potassium fulvate being mixed, stir, use
The water constant volume of remaining 70%～80%, it is thus achieved that mixture, controls agent for a kind of pouring root type cadmium resistance, standby.
A kind of pouring root type cadmium resistance control agent application in Semen vignae sinensis is kept the safety in production, the steps include:
1. the component water of pouring root type cadmium resistance control agent is dissolved, mix homogeneously；
2. to before maturation after emerging, every 15 days pouring roots once, totally three times, each 200ml；
3., between centered by crop root, radius carries out pouring root less than 10cm.
Working mechanism: the working mechanism of this resistance control agent:
1, interionic also exists antagonism, competition binding site between calcium, silicon and cadmium ion, oxidative stress and antioxidation system
System and Ca2+And calmodulin, CaM is relevant, calcium promotes the generation of chelating agen in plant, strengthens Process of chelating and detoxicification；Silicon can improve vegetable
Resistance, improve the self-protection ability of Plantula Brassicae chinensis Photosynthetic, reduce root and the injury of plasmalemmae of blade, raising under Cd stress
The polyphenoils enzymatic activity of plant leaf under Cd stress, the accumulation of suppression free radical.
The organic substances such as the tea polyphenols during 2, the fulvic acid in potassium fulvate has a large amount of active group and tealeaf extract
Can chelate with the cadmium in soil, decrease the plant absorption to cadmium.
The present invention compared with prior art, has the advantages that:
1. the constituent of this resistance control agent is easily obtained, easy to operation；
2. this resistance control agent agent effect is obvious, significantly reduces the cadmium content in plant；
3. this resistance control agent does not results in secondary pollution to environment.
Pouring root type cadmium of the present invention resistance control agent combination can effectively reduce cadmium content in Semen vignae sinensis, the amplitude of reducing be 7.58%～
24.24%, the nutritional quality of Semen vignae sinensis can be improved simultaneously.
Accompanying drawing explanation
Fig. 1 is that the resistance control agent of a kind of cadmium affects schematic diagram to ripe initial stage Semen vignae sinensis fruit quality.
Fig. 2 is that the impact of ripe phase in mid-term Semen vignae sinensis fruit quality is intended to by the resistance control agent of a kind of cadmium.
From Fig. 1 and Fig. 2 analysis, compared with the control, cadmium of the present invention resistance control agent combination whether the ripe initial stage still
There is improvement result in various degree in ripe mid-term to vitamin C, soluble sugar, soluble protein, is particularly reducing nitric acid
Salt content aspect effect is notable.
Detailed description of the invention
Embodiment 1:
Agent is controlled in a kind of pouring root type cadmium resistance, and it is made up of the raw material of following weight portion:
The preparation method of a kind of pouring root type cadmium resistance control agent, the steps include:
A, weigh calcium chloride in proportion, potassium silicate water dissolves；
B, weighing 120g tea grounds and be placed in 500ml water, boiling water boils 9 or 10 or 11min, is cooled to room temperature, filters, discards
Tea grounds, gained solution continues to boil to 100ml, is required tealeaf extract；
C, weigh required potassium fulvate in proportion；A certain proportion of tealeaf extract is mixed homogeneously with potassium fulvate；
D, by the calcium chloride of dissolving, potassium silicate, tealeaf extract and potassium fulvate being mixed, stir, use
The water constant volume of remaining 70%～80%, it is thus achieved that mixture, controls agent for a kind of pouring root type cadmium resistance, standby.
Agent is controlled in a kind of pouring root type cadmium resistance, and it is made up of the raw material of following weight portion:
| Embodiment and raw material | 2 | 3 | 4 | 5 | 6 |
| Calcium chloride | 0.15 | 0.2 | 0.2 | 0.22 | 0.25 |
| Potassium silicate | 0.25 | 0.2 | 0.22 | 0.23 | 0.2 |
| Potassium fulvate | 6.5 | 6 | 5 | 5 | 6 |
| Tealeaf extract | 9 | 10 | 8 | 9 | 8 |
| Water | 84.1 | 83.6 | 86.58 | 85.55 | 85.55 |
| Amount to | 100 | 100 | 100 | 100 | 100 |
Its preparation process is same as in Example 1.
Embodiment 7:
A kind of pouring root type cadmium resistance control agent application in Semen vignae sinensis is kept the safety in production, the steps include:
1. the component water of pouring root type cadmium resistance control agent is dissolved, mix homogeneously；
2. to before maturation after emerging, every 15 days pouring roots once, totally three times, each 200ml；
3., between centered by crop root, radius carries out pouring root less than 10cm.
Embodiment 8:
Test period: 2015；Test site: Wuhan
1) long-term cropping: Semen vignae sinensis
2) soil
The vegetable plot, outskirts of a town in huge port village, Hongshan District, Wuhan City, Hubei Province, soil belongs to full cadmium content 0.5660mg/kg, and pH is
7.05, belong to slight cadmium pollution soil.
3) test is arranged
1. Semen vignae sinensis was sowed on July 9th, 2015；
2. emerge latter about 20 days, use this resistance control agent and carry out pouring root, commonly use irrigation water, fulvic acid with vegetable grower the most respectively
It is comparison that potassium carries out pouring root, to compare cadmium resistance control agent application effect；
Every time the pouring root time should select at about 6 in the morning, centered by crop root between, radius is as the criterion less than 10cm
Sprayed once every about 15 days, on 09 07th, 2015 results, symbiosis length 59 days.
4) test
1. method of testing
After being cleaned with deionized water by the Semen vignae sinensis sample of results, part rustless steel plant sample grinding machine grinds, for cadmium
Mensuration；Nitration mixture (nitric acid+perchloric acid 9+1) digestion-atomic absorption spectrophotometer is used to measure cadmium content, its content such as table 1.
Another part is for the mensuration of the index of quality (vitamin C, soluble protein, soluble sugar and nitrate), its content such as accompanying drawing
1, accompanying drawing 2.
Table 1: the pouring root type cadmium resistance control agent impact on Semen vignae sinensis fruit cadmium content
2. test result
Reduce by 24.24% with cadmium of the present invention resistance control agent Semen vignae sinensis fruit cadmium content compared with the control at the ripe initial stage, reach aobvious
Write sex differernce (P=0.15), reduction by 7.66% compared with potassium fulvate is administered alone, reduce compared with the control in ripe mid-term
10.41%, reduction by 7.58% compared with potassium fulvate is administered alone, illustrate that Semen vignae sinensis fruit cadmium content is reduced width by the resistance control agent of this cadmium
Spend bigger.
In sum, pouring root type cadmium of the present invention resistance control agent combination can effectively reduce cadmium content in Semen vignae sinensis, and reduction amplitude is
7.58%～24.24%, the nutritional quality of Semen vignae sinensis can be improved simultaneously.
Claims (8)
1. an agent is controlled in the resistance of pouring root type cadmium, and it is made up of the raw material of following weight portion:
A kind of pouring root type cadmium resistance control agent the most according to claim 1, it is characterised in that:
A kind of pouring root type cadmium resistance control agent the most according to claim 1, it is characterised in that:
A kind of pouring root type cadmium resistance control agent the most according to claim 1, it is characterised in that:
A kind of pouring root type cadmium resistance control agent the most according to claim 1, it is characterised in that:
A kind of pouring root type cadmium resistance control agent the most according to claim 1, it is characterised in that:
7. the preparation method of a kind of pouring root type cadmium resistance control agent described in claim 1, the steps include:
A, weighing calcium chloride, potassium silicate in proportion, 20%～30% with required water dissolve；
B, weighing tea grounds and be placed in 500ml water, boiling water boils 9-11min, is cooled to room temperature, filters, discards tea grounds, gained solution
Continue to boil to 100ml, for tealeaf extract；
C, weigh potassium fulvate in proportion；A certain proportion of tealeaf extract is mixed homogeneously with potassium fulvate；
D, by the calcium chloride of dissolving, potassium silicate, tealeaf extract and potassium fulvate being mixed, stir, by residue
70%～80% water constant volume, it is thus achieved that mixture, for a kind of pouring root type cadmium resistance control agent.
8. the application in Semen vignae sinensis is kept the safety in production of a kind of pouring root type cadmium resistance control agent described in claim 1.
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Cited By (3)
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| CN106747961A (en) * | 2016-11-23 | 2017-05-31 | 华中农业大学 | A kind of conditioning agent containing selenium and application for reducing cowpea cadmium and nitrate content |
| CN107897207A (en) * | 2017-06-27 | 2018-04-13 | 湖北农谷畅响土壤修复科技股份有限公司 | A kind of blade face resistance control agent for being used to reduce rice heavy metal cadmium |
| CN116715556A (en) * | 2023-05-10 | 2023-09-08 | 广东省农业科学院农业资源与环境研究所 | Ternary composite resistance and control agent and application thereof, and evaluation method of ternary composite resistance and control agent on soil restoration effect |
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| CN116715556A (en) * | 2023-05-10 | 2023-09-08 | 广东省农业科学院农业资源与环境研究所 | Ternary composite resistance and control agent and application thereof, and evaluation method of ternary composite resistance and control agent on soil restoration effect |
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| CN106083391B (en) | 2019-10-25 |
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