CN106689196A - Tobacco leaf blocking and control agent for decreasing content of Cd (cadmium) in tobacco leaf and preparation and use method thereof - Google Patents
Tobacco leaf blocking and control agent for decreasing content of Cd (cadmium) in tobacco leaf and preparation and use method thereof Download PDFInfo
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- CN106689196A CN106689196A CN201611012722.4A CN201611012722A CN106689196A CN 106689196 A CN106689196 A CN 106689196A CN 201611012722 A CN201611012722 A CN 201611012722A CN 106689196 A CN106689196 A CN 106689196A
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- tobacco leaf
- blade face
- control agent
- agent
- face resistance
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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
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- 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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- 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
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/02—Acyclic compounds
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- General Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
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- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
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Abstract
The invention discloses a tobacco leaf blocking and control agent for decreasing content of Cd (cadmium) in tobacco leaf and a preparation and use method thereof. The tobacco leaf blocking and control agent is prepared from the following active components in parts by weight: 160 parts of water, 8 to 16 parts of sugar alcohol, 1 to 3 parts of glycerin, 0.2 to 0.4 part of potassium hydroxide, and 2 to 4 parts of surfactant. The preparation method comprises the following steps of (a) adding the sugar alcohol and the glycerin into the water, stirring at the speed of 60 to 100r/min, heating to 70 to 90 DEG C in water bath, maintaining for 5 to 10min, and cooling for standby; (b) adding the surfactant into the cooled solution, stirring at the speed of 60 to 100r/min, and uniformly mixing; (c) adding the potassium hydroxide, and adjusting the pH (potential of hydrogen) value to 7 to 8, so as to obtain the tobacco leaf blocking and control agent. The tobacco leaf blocking and control agent has the advantage that the tobacco leaf blocking and control agent is sprayed by the leaf spraying type, the output of the tobacco leaf is effectively increased, the content of Cd in the tobacco leaf is obviously decreased, and the quality of the tobacco leaf is improved.
Description
Technical field
The present invention relates to agricultural product quality and safety field, more particularly to reduce cadmium content in tobacco leaf blade face resistance control agent and
Its preparation and application.
Background technology
Tobacco is a kind of crops for having very strong absorbability to Cadmium in Soil, and the cadmium main accumulation for absorbing is in tobacco leaf portion
Point, even if when Cadmium in Soil content is relatively low, during tobacco remains to for substantial amounts of cadmium to accumulate on tobacco leaf, so as to influence tobacco leaf security
And quality, the cadmium of tobacco leaf high content constitutes potential health risk to smoker, has a strong impact on the sustainable development of tobacco business.
Tobacco leaf cadmium content is reduced, the security for improving tobacco leaf is a problem demanding prompt solution.
In recent years, soil improvement recovery technique and the foliar fertilizer containing selenium, silicon are reduced arranging for crops cadmium content as 2 kinds
Apply, obtained more research and application.Soil improvement recovery technique is to reduce suction of the tobacco leaf to cadmium by fixing soil cadmium
Accumulation is received, the foliar fertilizer containing selenium, silicon is to reduce uptake and accumulation of the tobacco leaf to cadmium by the antagonism of selenium, silicon and cadmium.Due to
Tobacco leaf is to the superpower accumulation capability of cadmium, and it is all extremely limited that cadmium effects drop in this 2 kinds of measures.And soil improvement reparation is to vega soil knot
Structure and fertility have certain negative effect, and the foliar fertilizer containing selenium is using the excessive pollution for easily causing selenium.The formula of this patent product,
Application method and the mechanism of action are not directed in the prior art.
The content of the invention
It is an object of the invention to overcome the weak point in prior art, there is provided a kind of blade face of reduction tobacco leaf cadmium content
Resistance control agent and its application method, can effectively reduce the cadmium content of tobacco leaf.Its drop cadmium mechanism is that resistance control agent is used as in carrier and tobacco leaf
Cadmium form chelate, cadmium accumulate tobacco leaf by the screen casing of bast toward stem and root transport, is changed downwards to a certain extent
The migration transporting mode of tobacco leaf cadmium is become, the purpose of tobacco leaf cadmium content has been reduced so as to reach.
To achieve the above object, the technical scheme of present invention offer is：Reduce the blade face resistance control agent of cadmium content in tobacco leaf, bag
Include following active component：The weight portion of water 160, sugar alcohol 8-16 weight portions, glycerine 1-3 weight portions, 0.2-0.4 weight portion hydroxides
Potassium, surfactant 2-4 weight portions.
Preferably, described sugar alcohol is one or more in mannitol, D-sorbite, xylitol, antierythrite.
Preferably, the surfactant is in tween, sapn, APES, AEO
One or more.
Present invention also offers the preparation method of the blade face resistance control agent for reducing cadmium content in tobacco leaf, the method includes：
A () adds 8-16 weight portions sugar alcohol, 1-3 parts by weight of glycerin in 160 weight portion water, with the speed of 60-100r/min
Degree stirring, warming-in-water keeps 5-10min to 70 DEG C -90 DEG C, cools down standby；
In (b) solution after the cooling period, 2-4 parts surfactants are added, are stirred with the speed of 60-100r/min,
It is well mixed；
(C) 0.2-0.4 weight portion potassium hydroxide is added, regulation pH value obtains blade face resistance control agent to 7-8.
Present invention also offers the application method of the blade face resistance control agent for reducing cadmium content in tobacco leaf：Blade face barrier is added water
500-1500 times of dilution, is sprayed the blade face resistance after diluting by the way of foliage-spray and controls agent 1-2 times in tobacco leaf different growing.
Preferably, spray 1-2 times for a long time tobacco leaf is prosperous, the maturity period sprays 1-2 times, and adjacent interval time twice was at 10 days
More than.
Preferably, tobacco leaf group a phase spray 1-2 times, prosperous to spray 1-2 times for a long time, the maturity period sprays 1-2 times, it is adjacent twice
Interval time more than 10 days.
Preferably, when squirting the blade face barrier after dilution, uniformly spray in the back side of tobacco leaf and the outside of belly, every tobacco leaf
All should be sprayed onto, application effect is just moistened for blade face, No drip type is preferably.
Before spraying the time period preferably 8 a.m. of the blade face barrier after dilution, after 6 pm, should not spray at noon,
The same day such as rainfall is sprayed, it is necessary to be filled spray in 3-5 days.
Preferably, the blade face resistance control agent after dilution is sprayed in front and rear 10 days, mineral element foliar fertilizer is not applied, it is to avoid mineral
Nutrient hinders the chelation group in controlling agent in tobacco leaf with cadmium competition.
A technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：The present invention is by spraying blade face
Resistance control agent can effectively improve yield of tobacco；Cd contents in tobacco leaf can be significantly reduced, makes Cd contents reduction 20%-60% in tobacco leaf,
Improve quality of tobacco；Tobacco leaf Cd blade faces resistance control agent cost is relatively low, using easy to operate, is easy to spread and application.
Specific embodiment
By the following specific examples further illustrate the invention.The purpose that these embodiments are for illustration only, not structure
Into any limitation.
Embodiment 1
(1) soil labile organic matter
Experimental plot is selected in certain university experimental plot, and early stage investigation shows that soil Cd contents exceed national soil environment quality
II grade of standard of cadmium limit value in standard (GB15618-1995).Tobacco bred selects tobacco No. 3.
The field test soil physico-chemical property of table 1
(2) it is prepared by blade face resistance control agent
1. by 8 weight portion mannitols, 2 parts by weight of glycerin add 160 weight portion water in, with the speed of 60-100r/min
Stirring, warming-in-water heats 5min to 80 DEG C, cools down standby.
2. in solution after the cooling period, 4 weight portion tweens are added, is uniformly mixed with the speed of 60-100r/min.
3. 0.2 weight portion potassium hydroxide is added, regulation pH value obtains blade face resistance control agent to 7.5 ± 0.1.
(3) application process
During tobacco leaf is cultivated, spray the blade face resistance control agent 4 times after dilution, the prosperous long-term and maturity period respectively sprays 2 times, it is each between
Every 15d.Prosperous long-term blade face resistance control dilution agent 1200 is used again, and maturity period blade face resistance control dilution agent 600 is used again.Sprayed in the morning
Before 8 points, after 6 pm, the blade face resistance control agent after dilution is uniformly sprayed application into every tobacco leaf, application effect is that blade face is just wet
Profit, No drip type.The same day such as rainfall is sprayed, it is necessary to be filled spray in 3-5 days.
(4) tobacco cadmium resistance control effect
Compared with the control, sugar alcohol blade face resistance control agent makes the yield of lower tobacco leaf, middle part tobacco leaf and upper tobacco leaf increase respectively
4.1%, 1.8% and 11.4%, Cd content reduce 18.8%, 51.2% and 58.1% respectively, Cd contains in each position of tobacco leaf
Amount with compare between there is significant difference (p<0.05).Spraying blade face resistance control agent makes Zn, Mn and Ca element in each position of tobacco leaf
There is a small amount of reduction, and other Medium-microelements (Mg, K, B, Si) are then had no significant effect.
Influence of the blade face resistance control agent of the cadmium of table 2 to cadmium in tobacco leaf and nutrient
Embodiment 2
(1) soil labile organic matter
Experimental plot is selected in certain tobacco leaf planting farmland, and early stage investigation shows that soil Cd contents exceed national soil environment quality
II grade of standard of cadmium limit value in standard (GB15618-1995).Tobacco bred selects tobacco No. 3.
(2) it is prepared by blade face resistance control agent
1. by 12 weight portion xylitols, 3 parts by weight of glycerin, 160 weight portion water of addition, warming-in-water heated up to 90 DEG C
Stirred with 100r/min in journey, 90 DEG C of heating 50min of bath temperature are cooled down standby.
2. in solution after the cooling period, 3 weight portion APESs are added, is stirred with 100r/min, mixing is equal
It is even.
3. 0.3 weight portion potassium hydroxide is added, regulation pH value to 7.5 ± 0.1 obtains the blade face resistance control agent of tobacco cadmium.
(3) application process
Blade face resistance control agent spray respectively group's phase, it is prosperous it is long-term carried out with the maturity period, wherein group spray an initial phase 1 time,
Prosperous long-term mid-term is sprayed 2 times and the initial stage in maturity period sprays 1 time.
Group phase blade face resistance 1500 times of dilution agent of control, prosperous long-term blade face resistance 1200 times of dilution agent of control, the resistance of ripe initial stage blade face
1200 times of dilution agent of control, ripe mid-term blade face resistance 1000 times of dilution agent of control.
Mode is sprayed uniformly to spray in tobacco leaf surface, every tobacco leaf all should be sprayed onto；Application effect is that blade face is just wet
Profit, No drip type is preferably；Spraying time section for before at 9 points in the morning, after at 5 points in afternoon, should not noon hot stage spray.Spray the same day
Such as rainfall, it is necessary to be filled spray in 3-5 days again.
(4) tobacco cadmium resistance control effect
Compared with the control, sugar alcohol blade face resistance control agent makes lower tobacco leaf, middle part tobacco leaf and Cd contents drop respectively in upper tobacco leaf
It is low by 24.3%, 14.5% and 14.2%, in each position of tobacco leaf Cd contents with compare between there is significant difference (p<0.05).
Cd contents (mg/kg) in each position of the tobacco of table 3
Specific embodiment used herein is set forth to principle of the invention and implementation method, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept.The above is only the side of being preferable to carry out of the invention
Formula, it is noted that due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, some improvement, retouching or change can also be made,
Above-mentioned technical characteristic can be by rights combined；These improve retouching, change or combine, or not improved by hair
Bright design and technical scheme directly applies to other occasions, is regarded as protection scope of the present invention.
Claims (9)
1. the blade face resistance control agent of cadmium content in tobacco leaf is reduced, it is characterised in that：Including following active component：The weight portion of water 160, sugar
Alcohol 8-16 weight portions, glycerine 1-3 weight portions, potassium hydroxide 0.2-0.4 weight portions, surfactant 2-4 weight portions.
2. the blade face resistance control agent for reducing cadmium content in tobacco leaf according to claim 1, it is characterised in that：Described sugar alcohol is
One kind in mannitol, D-sorbite, xylitol, antierythrite.
3. the blade face resistance control agent for reducing cadmium content in tobacco leaf according to claim 1, it is characterised in that：The surface-active
Agent is the one kind in tween, sapn, APES, AEO.
4. the preparation method of agent is controlled in the blade face for reducing cadmium content in the tobacco leaf resistance according to claim 1,2 or 3 any one, its
It is characterised by：
（a）By in 8-16 weight portions sugar alcohol, 1-3 parts by weight of glycerin 160 weight portion water of addition, stirred with the speed of 60-100 r/min
Mix, warming-in-water keeps 5-10min to 70 DEG C -90 DEG C, cools down standby；
（b）In solution after the cooling period, 2-4 parts surfactants are added, stirred with the speed of 60-100 r/min, mixing
Uniformly；
（C）0.2-0.4 weight portion potassium hydroxide is added, regulation pH value obtains blade face resistance control agent to 7-8.
5. the blade face resistance any one of usage right requirement 1-3 controls agent or by the preparation method described in claim 4
The method of cadmium content in the blade face resistance control agent reduction tobacco leaf of acquisition, it is characterised in that：Blade face barrier is diluted with water 500-
1500 times, the blade face resistance after diluting is sprayed by the way of foliage-spray in tobacco leaf different growing and controls agent 1-2 times.
6. the application method of agent is controlled in the blade face resistance for reducing cadmium content in tobacco leaf according to claim 5, it is characterised in that：
Tobacco leaf is prosperous to be sprayed 1-2 times for a long time, and the maturity period sprays 1-2 times, and adjacent interval time twice is more than 10 days.
7. the application method of agent is controlled in the blade face resistance for reducing cadmium content in tobacco leaf according to claim 5, it is characterised in that：
Tobacco leaf group sprays 1-2 times the phase, and prosperous to spray 1-2 times for a long time, the maturity period sprays 1-2 times, and adjacent interval time twice was at 10 days
More than.
8. the application method of agent is controlled in the blade face resistance for reducing cadmium content in tobacco leaf according to claim 5, it is characterised in that：Spray
During blade face barrier after wet dilution, uniformly spray in the back side of tobacco leaf and the outside of belly, application effect is just moistened for blade face, no
Dropping liquid is preferably.
9. the application method of agent is controlled in the blade face resistance for reducing cadmium content in tobacco leaf according to claim 5, it is characterised in that：It is dilute
Blade face resistance control agent after releasing is sprayed in front and rear 10 days, mineral element foliar fertilizer is not applied, it is to avoid mineral nutrient is in tobacco leaf and cadmium
Chelation group in competition resistance control agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012722.4A CN106689196B (en) | 2016-11-17 | 2016-11-17 | Reduce the blade face resistance control agent and its preparation and application of cadmium content in tobacco leaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012722.4A CN106689196B (en) | 2016-11-17 | 2016-11-17 | Reduce the blade face resistance control agent and its preparation and application of cadmium content in tobacco leaf |
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| CN106689196A true CN106689196A (en) | 2017-05-24 |
| CN106689196B CN106689196B (en) | 2019-08-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108739165A (en) * | 2018-06-14 | 2018-11-06 | 南京农业大学 | Inhibit blade face barrier and its application method of the wheat seed to Cd uptake and accumulation |
| CN111213556A (en) * | 2020-02-10 | 2020-06-02 | 中南林业科技大学 | Safe production method of rice for medium and light cadmium-polluted soil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108739165A (en) * | 2018-06-14 | 2018-11-06 | 南京农业大学 | Inhibit blade face barrier and its application method of the wheat seed to Cd uptake and accumulation |
| CN108739165B (en) * | 2018-06-14 | 2021-02-05 | 南京农业大学 | Foliage blocking agent for inhibiting cadmium absorption and accumulation of wheat grains and use method thereof |
| CN111213556A (en) * | 2020-02-10 | 2020-06-02 | 中南林业科技大学 | Safe production method of rice for medium and light cadmium-polluted soil |
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| CN106689196B (en) | 2019-08-13 |
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