CN106106517A - A kind of pouring root type resistance control agent preparation method and application reducing Plantula Brassicae chinensis cadmium content - Google Patents
A kind of pouring root type resistance control agent preparation method and application reducing Plantula Brassicae chinensis cadmium content Download PDFInfo
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- CN106106517A CN106106517A CN201610488946.6A CN201610488946A CN106106517A CN 106106517 A CN106106517 A CN 106106517A CN 201610488946 A CN201610488946 A CN 201610488946A CN 106106517 A CN106106517 A CN 106106517A
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- control agent
- resistance control
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/46—N-acyl derivatives
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- General Health & Medical Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Fertilizers (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a kind of pouring root type resistance control agent preparation method and application, it is made up of a certain proportion of chelating calcium, potassium silicate, poly-γ glutamic acid, deionized water, its step: A, weighing a certain proportion of poly-γ glutamic acid and mix in mass ratio with water, stirring is to dissolving；B, weigh a certain proportion of chelating calcium, with water dissolution, be stirred until homogeneous solution；C, weigh a certain proportion of potassium silicate water dissolution, be stirred until homogeneous solution；D, the chelating calcium dissolved, potassium silicate solution are mixed with poly-γ glutamic acid, stir, obtain mixture with water constant volume, obtain the resistance control agent of pouring root type cadmium.This agent application in Plantula Brassicae chinensis 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.The resistance control agent combination of pouring root type cadmium can effectively reduce Plantula Brassicae chinensis overground part cadmium content, and reduction amplitude is 70.30%, improves the nutritional quality of Plantula Brassicae chinensis.
Description
Technical field
The invention belongs to agricultural environment child care and recovery technique field, be more particularly to a kind of Plantula Brassicae chinensis overground part cadmium content
Carry out controlling agent, also relate to a kind of Plantula Brassicae chinensis overground part cadmium content and carry out controlling the preparation method of agent, further relate to a kind of pouring root type
The purposes of cadmium resistance control agent, it is adaptable to vegetable plot 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 molecules required for vegetable, Polyurethane-epoxy resin
Also there is in addition to having the transfer effect of suppression cadmium soil moisture conservation weight gaining, active balance soil acid-base value, it is to avoid life-time service chemistry is fertile
The effect of the acid soil property that material is caused, and 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 and prepared, can be widely used in a huge sum of money
Belong to cadmium pollution improvement aspect.
A further object of the invention there are provided the resistance control agent of a kind of pouring root type cadmium in Plantula Brassicae chinensis is kept the safety in production
Application, is suitable for the vegetable plot of 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:
The basic ideas of the present invention are: vegetable plot, outskirts of a town is a city " vegetable basket ", and the cadmium pollution of vegetable plot, outskirts of a town is seriously endangered
Do harm to the healthy of urbanite, affect social stability.Existing base is executed the resistance control agent of type cadmium and be there is organic resistance control agent effect
Resistance control agent amount of application the most lasting, inorganic is big, easily cause the problems such as soil compaction, how to screen that a kind of ratio is suitable, takes effect rapidly
And the resistance control agent combination being free from side effects is the most important thing that the research of agent is controlled in cadmium resistance.Therefore, the present invention is by organic resistance control agent
Combine with the inorganic resistance control agent with control cadmium effect, improve embodiment, filter out one and more greatly reduce on vegetable field
The pouring root type cadmium resistance control agent of portion's cadmium 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:
Chelating calcium and potassium silicate are analytical pure or chemically pure reagent；
Water is deionized 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, weighing a certain proportion of Polyurethane-epoxy resin (γ-PGA) and mix for 1:10 in mass ratio with water, stirring is extremely
It is completely dissolved；
B, weighing a certain proportion of chelating calcium (EDTA-Ca) and dissolve for 1:100 in mass ratio with water, stirring is to all
Even solution；
C, weigh a certain proportion of potassium silicate (K2SiO3·nH2O), carry out dissolving for 1:100 in mass ratio with water (permissible
Accelerate to dissolve with ultrasound wave), it is stirred until homogeneous solution；
D, the chelating calcium (EDTA-Ca) by having dissolved, potassium silicate (K2SiO3·nH2O) solution and Polyurethane-epoxy resin
(γ-PGA) carries out mix homogeneously, carries out constant volume with about the 60% of required water, it is thus achieved that mixture, it is thus achieved that a kind of pouring root type cadmium resistance
Control agent, standby.
A kind of pouring root type cadmium resistance control agent application in Plantula Brassicae chinensis is kept the safety in production, the steps include:
1. dissolve by the component of pouring root type cadmium resistance control agent, mix homogeneously；
2. to before maturation after emerging, every 7 days pouring roots once, totally three times, the most every strain 10ml；
3., between centered by crop root, radius carries out pouring root less than 5cm.
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, with other calcium element phases
Ratio, the lasting effect of EDTA-Ca is good, and effect is fast；Silicon can improve the resistance of vegetable, improve the oneself guarantor of Plantula Brassicae chinensis Photosynthetic
Protect ability, reduce root and the injury of plasmalemmae of blade under Cd stress, improve the polyphenoils enzymatic activity of plant leaf under Cd stress,
The accumulation of suppression free radical.
2, Polyurethane-epoxy resin (γ-PGA) is a kind of macromolecular material, fermentable in nature produce, owing to not having
Toxic, do not have harm, can natural decomposition and have good fertilizer synergistic effect and paid close attention to widely, γ-PGA strand
Upper substantial amounts of free carboxy, these groups make it have the strongest water absorption can be had as part in conjunction with cation simultaneously
Certain metal-chelating effect, may be used for Heavy Metal Pollution Control.
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 Plantula Brassicae chinensis overground part cadmium content, and reduction amplitude is
70.30%, the nutritional quality of Plantula Brassicae chinensis can be improved simultaneously.
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, weighing a certain proportion of Polyurethane-epoxy resin (γ-PGA) and mix for 1:10 in mass ratio with water, stirring is extremely
It is completely dissolved；
B, weigh a certain proportion of chelating calcium (EDTA-Ca), potassium silicate (K2SiO3·nH2O), it is 1 in mass ratio with water:
100 dissolve；
C, the chelating calcium (EDTA-Ca) by having dissolved, potassium silicate (K2SiO3·nH2O) solution and Polyurethane-epoxy resin
(γ-PGA) carries out mix homogeneously, carries out constant volume with about the 60% of required water, it is thus achieved that mixture, 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:
Following preparation process is same as in Example 1
| Embodiment and raw material | 2 | 3 | 4 | 5 | 6 |
| Chelating calcium | 0.18 | 0.18 | 0.2 | 0.22 | 0.23 |
| Potassium silicate | 0.18 | 0.2 | 0.18 | 0.22 | 0.23 |
| γ-PGA | 0.02 | 0.015 | 0.015 | 0.01 | 0.008 |
| Water | 99.62 | 99.605 | 99.605 | 99.55 | 99.532 |
| Amount to | 100 | 100 | 100 | 100 | 100 |
Embodiment 7:
A kind of pouring root type cadmium resistance control agent application in Plantula Brassicae chinensis is kept the safety in production, the steps include:
1. by the component water dissolution of pouring root type cadmium resistance control agent, mix homogeneously；
2. to before maturation after emerging, every 7 days pouring roots once, totally three times, the most every strain 10ml；
3., between centered by crop root, radius carries out pouring root less than 5cm.
Embodiment 8:
Below in conjunction with example in detail:
Test period: 2015；Test site: Wuhan.
A kind of pouring root type cadmium resistance control agent application in Plantula Brassicae chinensis is kept the safety in production, the steps include:
1) long-term cropping: Plantula Brassicae chinensis
2) soil
Hongshan District, Wuhan City, Hubei Province Hua Zhong Agriculture University Lion Rock yellowish soil, the full cadmium content of soil itself is
0.0516mg/kg, pH are 6.20, then add Caddy (Cleary) 1.0mg/kg soil by external source.
3) pot experiment is arranged
The most potted plant Cadmium in Soil ripening: pot experiment soil uses Hua Zhong Agriculture University Lion Rock yellowish soil, returns adopting
Soil dries, and after mixing is sieved, fills basin, every basin 3kg soil, adds cadmium (CdCl by the concentration of 1mg/kg soil2·2.5H2O, AR), treat soil
After earth is the most dry, every basin soil is mixed thoroughly and carries out ripening (on February 16,10 days to 2016 October in 2015).
2. sowing on February 23rd, 2016, after emerging, every basin field planting 6 strain, carries out root irrigation, with 0.2% after 15 days
Ca, 0.2%Si and 0.01% γ-PGA carry out pouring root as comparison, compare application effect.
3. sprayed once every about 7 days, the resistance control agent of every strain each 10ml cadmium, 3 times altogether
4. on 04 07th, 2016 results, amount to growth 44 days.
4) test
1. method of testing
After the Plantula Brassicae chinensis sample of results is cleaned with deionized water, complete through 105 DEG C, and dry to constant weight in 65 DEG C,
Grind with rustless steel plant sample grinding machine, cross 60 mesh sieves for Cadmium detrmination；Use nitration mixture (nitric acid+perchloric acid 9+1) digestion-atom
Absorption spectrophotometer measures cadmium content, its content such as table 1.Another part for the index of quality (vitamin C, soluble protein,
Soluble sugar and nitrate) mensuration, its content such as table 2.
2. test result
The resistance control agent impact on Plantula Brassicae chinensis overground part cadmium content of table 1 pouring root type cadmium
| Root irrigation | Overground part cadmium content (mg kg-1FW) |
| Deionized water (compares) | 0.330a |
| Ca | 0.135c |
| Si | 0.240b |
| γ-PGA | 0.208b |
| Ca+Si+γ-PGA | 0.098c |
Reduce 70.30% with cadmium of the present invention resistance control agent at Plantula Brassicae chinensis overground part cadmium content and contrast ratio and reach significance
Difference (P=0.05), and individually reduces 27.41% with using chelating calcium, potassium silicate is administered alone and reduces 59.17%, single
Solely use PGA and reduce 52.88%, illustrate that Plantula Brassicae chinensis overground part cadmium content is reduced amplitude by the resistance control agent of this cadmium bigger.
The resistance control agent impact on the Plantula Brassicae chinensis overground part index of quality of table 2 pouring root type cadmium
Being analyzed from table 2, compared with the control, different component of the present invention is to Plantula Brassicae chinensis overground part vitamin C, solubility
Sugar, soluble protein content suffer from improvement result in various degree, chelating calcium and potassium silicate process to be had nitrate content
Certain reduction trend, and cadmium of the present invention resistance control agent is combined Plantula Brassicae chinensis overground part vitamin C, soluble sugar, soluble protein
Content also improvement result is obvious, although nitrate content has raised but not up to significant difference.
In sum, pouring root type cadmium of the present invention resistance control agent combination can effectively reduce Plantula Brassicae chinensis overground part cadmium content, reduces
Amplitude is 70.30%, can improve the nutritional quality of Plantula Brassicae chinensis 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:
Described water is deionized water.
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 a certain proportion of Polyurethane-epoxy resin and mix for 1:10 in mass ratio with water, stirring is to dissolving；
B, weigh a certain proportion of chelating calcium, with water dissolution, be stirred until homogeneous solution；
C, weigh a certain proportion of potassium silicate water dissolution, be stirred until homogeneous solution；
D, the chelating calcium dissolved, potassium silicate solution are mixed with Polyurethane-epoxy resin, stir, obtain with water constant volume
Obtain mixture, it is thus achieved that a kind of pouring root type cadmium resistance control agent.
8. the application in Plantula Brassicae chinensis 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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| CN106106517B (en) | 2019-06-25 |
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