CN107136552B - A kind of flue-cured tobacco high temperature forces ripe prevention and control agent and its application - Google Patents
A kind of flue-cured tobacco high temperature forces ripe prevention and control agent and its application Download PDFInfo
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- CN107136552B CN107136552B CN201710535197.2A CN201710535197A CN107136552B CN 107136552 B CN107136552 B CN 107136552B CN 201710535197 A CN201710535197 A CN 201710535197A CN 107136552 B CN107136552 B CN 107136552B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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Abstract
The invention belongs to tobacco cultivation fields, and in particular to a kind of flue-cured tobacco high temperature forces ripe prevention and control agent, including following component：Polyamines, sodium nitroprussiate, sodium sulfite.The flue-cured tobacco high temperature of the present invention forces the use of ripe prevention and control agent, fully inhibit the respiration and transpiration of blade, reduce the accumulation of harmful substance and scattering and disappearing for leaf water, reduce the content of active oxygen, the damage for mitigating intracellular oxidative damage, especially chlorophyll passes through sulfhydrylation with activated protein and the mutually coordinated effect of nitrosylation, the higher photosynthetic rate of tobacco leaf can be maintained, ensures photosynthetic intensity.Experimental study shows to spray the tobacco leaf of prevention and control agent, field tobacco leaf early ageing, albefaction, burn, brown spot phenomenon it is substantially reduced, physiology and the index of quality significantly improve, and using effect is notable, and effectively ripe phenomenon can be forced to occur by prevention and control flue-cured tobacco high temperature, improve quality of tobacco.
Description
Technical field
The present invention relates to tobacco cultivation fields, and in particular to a kind of flue-cured tobacco high temperature forces ripe prevention and control agent and its application.
Background technology
Tobacco is a kind of plant very sensitive to changes in environmental conditions, and ecological factor has yield of tobacco, quality larger
Influence, wherein climatic factor is then the main ecological factor for bringing up high-quality characteristic tobacco.Studies have shown that with external sound tobacco
Production district is compared, and the meteorological condition problem of China's flue-cured tobacco field growth period is mainly shown as：Sunshine relative deficiency；Early period temperature phase
To too low, latter temperature is relatively excessively high.This phenomenon is especially prominent in China middle and south cigarette district.
Nanling mountain is the important climatic boundary in China Central China, south China, since its special landform is constituted, to south China gas
Time has apparent barrier action.In spring, due to the barrier effect of Nanling mountain, cold air is trapped in the north of Nanling (Hunan south cigarette
Area), cause rainy weather more；Summer, when subtropical high controls the Yangtze river basin and Hunan overhead, southerly prevailing,
Nanling north side, down draft is stronger, more fair weathers, and temperature is high, and humidity is small, causes hot weather apparent.In China middle and south
Cigarette district is susceptible to the meteorological disaster unfavorable to tobacco growth such as high temperature, high light radiation, and " high temperature is forced ripe " phenomenon is caused to occur.Closely
Year over due to the research of cultivation technique lag behind leaf tobacco production fast development and ecological factor it is uncoordinated, China is Central-South
The tobacco leaf maturity period frequently occurs in portion's cigarette district (such as South Hunan) production cannot normally fall Huang, leaf chlorosis, burn, brown spot it is serious
Deng " high temperature is forced ripe " phenomenon, the quality and availability of tobacco leaf are affected.
Since " high temperature is forced ripe " phenomenon has apparent region characteristic, lack enough attention in terms of understanding for a long time,
It is extremely short of in terms of theoretical research and Control Technology.Thus, in production practice, at present mainly by doing sth. in advance transplanting time, keep away
Exempt from or reduce later stage high temperature damage.So far there is not yet forcing ripe technology to report using prevention and control agent prevention and control flue-cured tobacco high temperature.
In conclusion it is urgent to provide a kind of prevention and control agent for preventing flue-cured tobacco high temperature from forcing ripe significant effect, quality of tobacco can be improved.
Invention content
The purpose of the present invention is develop a kind of prevention and control agent for preventing flue-cured tobacco high temperature from forcing ripe significant effect, quality of tobacco can be improved
And its application.
Above-mentioned purpose is to be achieved through the following technical solutions：A kind of flue-cured tobacco high temperature forces ripe prevention and control agent, including following component：It is more
Amine, sodium nitroprussiate, sodium sulfite.
It has been investigated that the tobacco under high temperature, under the action of protecting cell, a degree of closure of stomata is to subtract
The damage of light high temperature and intense light irradiation adapts to hot environment, but under continuous or prolonged high temperature action, tobacco leaf is not only
Chloroplast protein is denaturalized, and respiration is not normal, the accumulation of a large amount of harmful substances such as active oxygen, destroys photosynthesizer, together
When a large amount of dehydrations of transpiration, Leaf Physiology metabolism it is not normal, accelerate aging cause leaf texture's not yet maturation to occur as soon as numerous macula luteas,
And brown stain quickly, seriously affect quality of tobacco.The flue-cured tobacco high temperature of the present invention forces the use of ripe prevention and control agent, especially polyamines and nitre
The use of general sodium, it has been investigated that, sodium nitroprussiate decomposes the work(that there is the exogenous NO gas of generation induction stomata to close after being absorbed by blade
Can, while sodium nitroprussiate decomposition product can increase intensity of photosynthesis, boundary product can be with the activated protein in blade, such as half Guang
Nitrosation reaction occurs for propylhomoserin, changes its activity；And polyamines can inhibit stomatal opening by inhibiting ion channel, can induce simultaneously
The Rapid Accumulation of blade NO ensures the ability that there is NO induction stomata to close, and can enhance its oxidation resistance, in this way, filling
Divide and inhibits the function that stomatal opening and exogenous NO gas induction stomata are closed, the abundant respiration for inhibiting blade and steaming using polyamines
The effect of rising reduces the accumulation of harmful substance and the forfeiture of leaf water, but a degree of close of stomata is reducing breathing
While effect and transpiration, photosynthesis, experimental study can also be inhibited to show spraying for sodium sulfite solution, drop significantly
The high temperature of low cigarette strain forces ripe effect on photosynthetic influence, and specific action principle may be：Sodium sulfite has certain
Reproducibility can react in blade with active oxygen, reduce the content of active oxygen, and on the other hand, inferior sulfate radical is in plant
By original at H under the action of inner salt reductase2S, H2S can mitigate intracellular oxidative damage with active oxygen and peroxide reactions,
The especially damage of chlorophyll；And H2S can be in blade activated protein react, to its sulfhydrylation, activate antioxidase
Activity reinforces enzyme in antioxidant system and Ascorbic acid peroxidase system, passes through the nitrosylation with activated protein
Mutually coordinated effect ensures photosynthetic intensity.
Experimental study shows to spray the tobacco leaf of prevention and control agent, field tobacco leaf early ageing, albefaction, burn, brown spot phenomenon obviously subtracts
Gently, physiology and the index of quality significantly improve (detailed in Example), and using effect is notable, can effectively prevention and control flue-cured tobacco high temperature force ripe phenomenon
Occur, improves quality of tobacco.
Preferably, further technical solution is：It includes calculating by weight that the flue-cured tobacco high temperature, which forces ripe prevention and control agent,
Following component：2~5 parts of 1~10 part of polyamines, 1~10 part of sodium nitroprussiate and sodium sulfite.In this way, by suitably allocating, this is determined
Invention flue-cured tobacco high temperature forces the ratio of each component of ripe prevention and control agent, the synergistic effect of each component is given full play to, as far as possible in high temperature
The photosynthetic rate that tobacco leaf is maintained while the respiration and transpiration that inhibit cigarette strain blade under environment, is reduced in blade
Harmful substance and accumulated active oxygen improve the Scavenging activity of active oxygen in blade, enhance cigarette strain physiological metabolism activity and degeneration-resistant
Property, improve the physiology and the index of quality of tobacco leaf.
Further technical solution is：The polyamines is putrescine, spermidine, spermine, putrescine hydrochloride, spermidine hydrochloric acid
It is one or more in salt, spermine hydrochloride.
Further technical solution is：It includes being calculated by weight such as the following group that the flue-cured tobacco high temperature, which forces ripe prevention and control agent,
Point：100~300 parts of potassium dihydrogen phosphate.Potassium dihydrogen phosphate effectively supplements P elements and potassium element, enhances cigarette strain physiology generation in later stage
Activity and resistance are thanked, promotes blade normally to fall yellow poor, while can play the role of dropping alkali increasing potassium, inhibits nicotine synthesis, promotes potassium
Absorption and accumulation, promote top hacking, improve tobacco leaf chemical composition harmony.
Further technical solution is：It includes the following component calculated by weight that flue-cured tobacco high temperature, which forces ripe prevention and control agent,：It is rotten
200 parts of 5 parts of amine hydrochlorate, 5 parts of sodium nitroprussiate, 3 parts of sodium sulfite and potassium dihydrogen phosphate.Experimental study shows to spray aforementioned proportion
After the flue-cured tobacco high temperature of component forces ripe prevention and control agent, the high temperature of cigarette strain forces ripe effect obviously to weaken, and tobacco leaf early ageing albefaction, is burnt, brown spot
Phenomena such as be obviously improved.
Further technical solution is：It further includes the cobalt chloride calculated by weight that the flue-cured tobacco high temperature, which forces ripe prevention and control agent,
2~5 parts of 0.5~3 part, 50~150 parts of calcium chloride and mannitol, wherein the polyamines, sodium nitroprussiate, sodium sulfite and di(2-ethylhexyl)phosphate
Hydrogen potassium is component A, and the cobalt chloride, calcium chloride and mannitol are B component, and the component A is used separately with B component.Calcium chloride
Use can reduce the accumulation of active oxygen in blade, especially at high temperature, in prevention and control agent the processing of calcium chloride by maintaining or
The content of activities of antioxidant enzymes and antioxidant (such as ascorbic acid) is to enhance the removing energy of active oxygen in raising tobacco leaf
Power mitigates injury of the active oxygen to Photosynthetic, meanwhile, Ca2+Transmembrane transport, reduce the Electrolyte Leakage of tobacco leaf
Rate maintains Ca in cytoplasm2+Homeostasis, and studies have shown that Rubisico activating enzymes in blade have also can be improved in calcium chloride
Activity, therefore even if the closing induction of Stoma of Leaves can similarly maintain the higher photosynthetic rate of tobacco leaf；Experimental study table
It is bright, after spraying cobalt chloride solution, not only can effective ethene suppressing generation, while the content of polyamines in blade can be increased, to work
Property oxygen level increase play effective inhibiting effect, to inhibiting chlorophyll degradation to also function to certain effect, and mannitol
Addition, the activity of nitrate reductase can be effectively increased, be conducive to be catalyzed (Asia) nitrate formation NO.
Further technical solution is：It further includes the EDTA 3 calculated by weight that the flue-cured tobacco high temperature, which forces ripe prevention and control agent,
~8 parts.Show through experimental study：Blade can activate nitrate reductase to a certain extent after absorbing EDTA molecules, alleviate high temperature with
And intense light irradiation is to the inhibiting effect of nitrate reductase.
Another aspect of the present invention additionally provides the application that any of the above-described flue-cured tobacco high temperature forces ripe prevention and control agent：It will be described roasting
Cigarette high temperature is dissolved in the water to obtain prevention and control dilution agent liquid, the prevention and control dilution agent after forcing each component of ripe prevention and control agent to mix in proportion
It is 1 that flue-cured tobacco high temperature described in liquid, which forces the mass ratio of ripe prevention and control agent and water,:200~1000；By the prevention and control dilution agent liquid in cigarette strain
It is prosperous for a long time to maturity period foliage-spray 1~3 time, each dosage is 30~100kg prevention and control dilution agent liquid/mu.
Further technical solution is：Flue-cured tobacco high temperature described in the prevention and control dilution agent liquid forces the matter of ripe prevention and control agent and water
Amount is than being 1:500, the prevention and control dilution agent liquid is in cigarette strain prosperous long middle and later periods and prematuration period each foliage-spray 1 time, and successively two
Secondary sprays interval 8~15 days.
Further technical solution is：The mixed solution of the B component is first sprayed in the prosperous long middle and later periods blade face of cigarette strain, often
Per acre for 30~100kg, interval sprays the mixed solution of the component A to secondary dosage for the first time after 2~5 days, then is spaced 8~15 days
Spray the mixed solution of the component A for the second time afterwards, wherein each dosage of mixed solution of component A be 30~100kg per acre, B
The mass ratio of the gross mass of B component and water is 1 in the mixed solution of component:300~800, component A in the mixed solution of component A
Gross mass and water mass ratio be 1:200~1000.
The mixed solution of B component is first sprayed, the increase that reactive oxygen species can be first pinched to cigarette strain blade plays effective suppression
It makes and uses, to inhibiting chlorophyll degradation to also function to certain effect, while increasing the activity of nitrate reductase, be conducive to sodium nitroprussiate
Catalysis forms NO.
Further technical solution is：The mixed solution of the B component is first sprayed in the prosperous long middle and later periods blade face of cigarette strain, often
Per acre for 60kg, interval sprays the mixed solution of the component A to secondary dosage for the first time after 3 days, then is sprayed for the second time after being spaced 10 days
Apply the mixed solution of the component A, wherein each dosage of mixed solution of component A be 70kg per acre, the mixed solution of B component
The gross mass of middle B component and the mass ratio of water are 1:600, the gross mass of component A and the mass ratio of water in the mixed solution of component A
It is 1:800.
Further technical solution is：The prosperous long foliage-spray early period EDTA solution of cigarette strain, each dosage are 30~50kg
Per acre, the B component mixed solution is sprayed after being spaced 2~5 days, then is spaced and sprays the mixed of the component A after 2~5 days for the first time
Close solution, then be spaced the mixed solution for spraying the component A after 8~15 days for the second time, wherein in the EDTA solution EDTA with
The mass ratio of water is 1:100~300.EDTA solution is first sprayed, after blade fully absorbs, effectively activates nitrate reductase,
Spray again include in sodium nitroprussiate prevention and control dilution agent liquid after, can fully decompose absorption sodium nitroprussiate release NO, improve its effect effect
Fruit.
Experimental study shows after in a manner mentioned above spraying above-mentioned prevention and control dilution agent liquid that effective prevention and control flue-cured tobacco is high
Temperature forces ripe phenomenon to occur, field tobacco leaf early ageing, albefaction, burn, brown spot phenomenon it is substantially reduced, physiology and the index of quality significantly change
Kind, using effect is notable, can effectively improve quality of tobacco.
Specific implementation mode
Below in conjunction with specific embodiment, the invention will be further described, to help the present invention, but this hair is more fully understood
Bright protection domain is not limited in these embodiments.
Embodiment 1
3 parts of 5 parts of 5 parts of putrescine hydrochloride, sodium nitroprussiate, the sodium sulfite calculated by weight is dissolved in water after evenly mixing
In obtain prevention and control dilution agent liquid, wherein the flue-cured tobacco high temperature force the mass ratio of ripe prevention and control agent and water be 1:200, the prevention and control agent is dilute
Liquid is released in cigarette strain prosperous long middle and later periods and prematuration period each foliage-spray 1 time, successively twice spray interval 10 days, each dosage
For 100kg prevention and control dilution agent liquid/mu.
Embodiment 2
5 parts of 10 parts of 1 part of putrescine, sodium nitroprussiate, the sodium sulfite calculated by weight is dissolved in the water after evenly mixing
To prevention and control dilution agent liquid, wherein it is 1 that the flue-cured tobacco high temperature, which forces the mass ratio of ripe prevention and control agent and water,:500, the prevention and control dilution agent liquid
In cigarette strain prosperous long middle and later periods and prematuration period each foliage-spray 1 time, successively twice spray interval 8 days, each dosage is
30kg prevention and control dilution agent liquid/mu.
Embodiment 3
2 parts of 1 part of 10 parts of putrescine, sodium nitroprussiate, the sodium sulfite calculated by weight is dissolved in the water after evenly mixing
To prevention and control dilution agent liquid, wherein it is 1 that the flue-cured tobacco high temperature, which forces the mass ratio of ripe prevention and control agent and water,:500, the prevention and control dilution agent liquid
In cigarette strain prosperous long middle and later periods and prematuration period each foliage-spray 1 time, successively twice spray interval 10 days, each dosage is
50kg prevention and control dilution agent liquid/mu.
Embodiment 4
5 parts of 8 parts of 10 parts of putrescine, sodium nitroprussiate, the sodium sulfite calculated by weight is dissolved in the water after evenly mixing
To prevention and control dilution agent liquid, wherein it is 1 that the flue-cured tobacco high temperature, which forces the mass ratio of ripe prevention and control agent and water,:1000, the prevention and control dilution agent
Liquid in cigarette strain prosperous long middle and later periods and prematuration period each foliage-spray 1 time, successively twice spray interval 15 days, each dosage is
50kg prevention and control dilution agent liquid/mu.
Embodiment 5
Uniformly by 3 parts of 5 parts of 5 parts of putrescine, sodium nitroprussiate, sodium sulfite calculating by weight and 200 parts of potassium dihydrogen phosphate
It is dissolved in the water to obtain prevention and control dilution agent liquid after mixing, wherein it is 1 that the flue-cured tobacco high temperature, which forces the mass ratio of ripe prevention and control agent and water,:
600, the prevention and control dilution agent liquid is in cigarette strain prosperous long middle and later periods and prematuration period each foliage-spray 1 time, successively spraying twice
Interval 10 days, each dosage are 70kg prevention and control dilution agent liquid/mu.
Research shows that：The mass content of potassium dihydrogen phosphate can reach preferable effect at 100~300 parts.
Embodiment 6
On the basis of embodiment 5, the mixed solution of the B component, interval 3 are first sprayed in the prosperous long middle and later periods blade face of cigarette strain
The mixed solution of the component A in embodiment 5 is sprayed after it for the first time, then is spaced and sprays the mixed of the component A after 10 days for the second time
Solution is closed, each dosage is 70kg prevention and control dilution agent liquid/mu；Wherein, the B component includes the cobalt chloride 2 calculated by weight
Part, 3 parts of 100 parts of calcium chloride and mannitol, the gross mass of B component and the mass ratio of water are 1 in the mixed solution of B component:600.
Embodiment 7
On the basis of embodiment 5, the mixed solution of the B component, interval 5 are first sprayed in the prosperous long middle and later periods blade face of cigarette strain
The mixed solution of the component A in embodiment 5 is sprayed after it for the first time, then is spaced and sprays the mixed of the component A after 10 days for the second time
Close solution, the above-mentioned each dosage of solution be 100kg per acre；Wherein, the B component includes the cobalt chloride 0.5 calculated by weight
Part, 5 parts of 50 parts of calcium chloride and mannitol, the gross mass of B component and the mass ratio of water are 1 in the mixed solution of B component:300.
Embodiment 8
On the basis of embodiment 5, the mixed solution of the B component, interval 2 are first sprayed in the prosperous long middle and later periods blade face of cigarette strain
The mixed solution of the component A in embodiment 5 is sprayed after it for the first time, then is spaced and sprays the mixed of the component A after 10 days for the second time
Close solution, the above-mentioned each dosage of solution be 30kg per acre；Wherein, the B component include 3 parts of the cobalt chloride calculated by weight,
2 parts of 150 parts of calcium chloride and mannitol, the gross mass of B component and the mass ratio of water are 1 in the mixed solution of B component:1000.
On the basis of Examples 1 to 4, the mixing that all can first spray the B component in the prosperous long middle and later periods blade face of cigarette strain is molten
Liquid sprays the component A solution in Examples 1 to 4, research shows that also can reach preferable effect after a couple of days of interval.
Embodiment 9
On the basis of embodiment 6, in the prosperous long foliage-spray early period EDTA solution of cigarette strain, each dosage be 40kg per acre,
Interval sprays the B component mixed solution described in embodiment 6 after 3 days, wherein the mass ratio of EDTA and water in the EDTA solution
It is 1:200, EDTA account for 5 parts that the flue-cured tobacco high temperature forces that ripe prevention and control agent calculates by weight.
Embodiment 10
On the basis of embodiment 6, in the prosperous long foliage-spray early period EDTA solution of cigarette strain, each dosage be 30kg per acre,
Interval sprays the B component mixed solution described in embodiment 6 after 2 days, wherein the mass ratio of EDTA and water in the EDTA solution
It is 1:100, EDTA account for 3 parts that the flue-cured tobacco high temperature forces that ripe prevention and control agent calculates by weight.
Embodiment 11
On the basis of embodiment 6, in the prosperous long foliage-spray early period EDTA solution of cigarette strain, each dosage be 50kg per acre,
Interval sprays the B component mixed solution described in embodiment 6 after 5 days, wherein the mass ratio of EDTA and water in the EDTA solution
It is 1:300, EDTA account for 8 parts that the flue-cured tobacco high temperature forces that ripe prevention and control agent calculates by weight.
The experimental results showed that under above-described embodiment, flue-cured tobacco high temperature forces ripe phenomenon to be effectively inhibited, and field tobacco leaf is early
Decline, albefaction, burn, brown spot phenomenon it is substantially reduced, physiology and the index of quality significantly improve, and quality of tobacco is improved significantly, effect
Fruit is notable.
Comparative example
In addition to what is sprayed is not add the water of prevention and control agent, other conditions are the same as embodiment 1.
As shown in table 1~3, the tobacco leaf of prevention and control agent is sprayed, it is notable that physiology and the index of quality significantly improve using effect, can have
Effect prevention and control flue-cured tobacco high temperature forces ripe phenomenon to occur, and quality of tobacco is improved significantly.
1 flue-cured tobacco high temperature of table forces influence (maturity period measurement) of the ripe prevention and control agent to tobacco leaf pigment content
2 flue-cured tobacco high temperature of table forces the influence (maturity period measurement) that ripe prevention and control agent acts on tobacco leaf photosynthetic
3 flue-cured tobacco high temperature of table forces influence of the ripe prevention and control agent to cured tobacco leaf chemical composition
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (7)
1. a kind of flue-cured tobacco high temperature forces ripe prevention and control agent, which is characterized in that including following component：Polyamines, sodium nitroprussiate, sodium sulfite, phosphorus
Acid dihydride potassium, and 50~150 parts of 0.5~3 part of cobalt chloride, the calcium chloride and 2~5 parts of mannitol that calculate by weight, wherein
The polyamines, sodium nitroprussiate, sodium sulfite and potassium dihydrogen phosphate are component A, and the cobalt chloride, calcium chloride and mannitol are B component,
The component A is used separately with B component.
2. flue-cured tobacco high temperature according to claim 1 forces ripe prevention and control agent, which is characterized in that as follows including what is calculated by weight
Component：2~5 parts of 1~10 part of polyamines, 1~10 part of sodium nitroprussiate and sodium sulfite.
3. flue-cured tobacco high temperature according to claim 2 forces ripe prevention and control agent, which is characterized in that the polyamines be putrescine, spermidine,
It is one or more in spermine, putrescine hydrochloride, spermidine hydrochloride, spermine hydrochloride.
4. flue-cured tobacco high temperature according to claim 3 forces ripe prevention and control agent, which is characterized in that as follows including what is calculated by weight
Component：100~300 parts of potassium dihydrogen phosphate.
5. flue-cured tobacco high temperature according to claim 3 forces ripe prevention and control agent, which is characterized in that as follows including what is calculated by weight
Component：200 parts of 5 parts of putrescine hydrochloride, 5 parts of sodium nitroprussiate, 3 parts of sodium sulfite and potassium dihydrogen phosphate.
6. the flue-cured tobacco high temperature described in Claims 1 to 5 any one forces the application of ripe prevention and control agent, which is characterized in that prosperous in cigarette strain
Long middle and later periods blade face first sprays the mixed solution of the B component, each dosage be 30~100kg per acre, interval is the after 2~5 days
The mixed solution of the component A is once sprayed, then is spaced the mixed solution for spraying the component A after 8~15 days for the second time,
In, each dosage of mixed solution of component A be 30~100kg per acre, the gross mass and water of B component in the mixed solution of B component
Mass ratio be 1:300~800, the mass ratio of the gross mass of component A and water is 1 in the mixed solution of component A:200~1000.
7. flue-cured tobacco high temperature according to claim 6 forces the application of ripe prevention and control agent, which is characterized in that in the cigarette strain prosperous long middle and later periods
Blade face first sprays the mixed solution of the B component, and per acre for 60kg, interval sprays the component A to each dosage for the first time after 3 days
Mixed solution, then be spaced the mixed solution for spraying the component A after 10 days for the second time, wherein the mixed solution of component A is each
Per acre for 70kg, the mass ratio of the gross mass of B component and water is 1 to dosage in the mixed solution of B component:600, the mixing of component A
The mass ratio of the gross mass of component A and water is 1 in solution:800.
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| CN107517709B (en) * | 2017-09-14 | 2020-05-05 | 河南农业大学 | Tobacco planting method for preventing high-temperature induced maturity |
| CN107646393B (en) * | 2017-09-26 | 2020-06-05 | 江西省烟草公司抚州市公司 | Method for reducing high-temperature induced maturity hazard of flue-cured tobacco |
| CN109942332A (en) * | 2019-02-15 | 2019-06-28 | 湖北省烟草科学研究院 | Upper tobacco leaf upgrading field physiological regulation agent and preparation method thereof and application method |
| CN115363045B (en) * | 2022-04-15 | 2024-07-19 | 福建省烟草公司三明市公司 | Protective agent for preventing sunburn of plant leaves and preparation method and application thereof |
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