CN103798042A - High-efficiency tobacco seedling cultivation method - Google Patents
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Abstract
The invention discloses a high-efficiency tobacco seedling cultivation method. The method includes the steps of accurately sowing seeds, applying fertilizer by stages, drawing in a sunshade net during the large-cross period of tobacco to receive sunlight illumination, opening a side film of a greenhouse during a seedling hardening period, spraying rare earth nutrient solution during the large-cross period to ensure nutrient required by tobacco seedlings, keeping timely ventilation to replenish the greenhouse with carbon dioxide so as to meet the requirement of photosynthesis when it is sunny, cutting leaves when the leaves of the tobacco seedlings overlap and are shaded, monitoring sanitary conditions constantly, cleaning and disinfecting the greenhouse and spraying insecticide every half a month, filling a floating disk with basic media, sowing the seeds in holes of the floating disk filled with the basic media, allowing the floating disk to float in a nutrition pool of the greenhouse, applying the fertilizer into water in the nutrition pool, carrying out management on the seedling cultivation process, hardening the seedlings before transplantation and finally directly transplanting the seedlings to a field after the seedlings are hardened. The high-efficiency tobacco seedling cultivation method has the advantages of improving the emergence uniformity of the seedlings, enhancing the root vitality of the tobacco seedlings, promoting the growth and development of the tobacco seedlings, improving the quality of the tobacco seedlings, being beneficial for cultivating the disease-free and strong tobacco seedlings and low in production cost, and improving the strong seedling rate.
Description
Technical field
The invention belongs to tobacco seedling technical field, relate in particular to a kind of high efficiency tobacco seedling breeding method.
Background technology
Tobacco is a kind of important economic crops, and the commodity rate of per mu yield value and tobacco is all subject to the great kindness at tobacco planting family deeply higher than other cereal crops, and cultivated area expands year by year.Cultivating strong sprout is the prerequisite that tobacco obtains high yield.Tobacco is cultivated the quality of quality and is related to the satisfaction between Cigarette Industrial Enterprise, commercial enterprise, consumer three, and tobacco exists many deficiencies aspect cultivation at present, as high in cost, serious waste of resources, and of the right age strong sprout is confusing, and strong sprout, rate was low etc.
The breeding method in traditional tobacco strong sprout exists tobacco seedling, and irregular, strong sprout, rate was low in a jumble.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of high efficiency tobacco seedling breeding method, and the breeding method that is intended to solve traditional tobacco strong sprout exists tobacco seedling irregular, the low problem of rate in strong sprout in a jumble.
The embodiment of the present invention is achieved in that a kind of high efficiency tobacco seedling breeding method, and this high efficiency tobacco seedling breeding method comprises the following steps:
Step 2 is applied fertilizer for the first time in the time emerging, and while starting leaf-cutting, applies fertilizer for the second time, applies fertilizer for the third time and grasps flexibly according to tobacco seedling growth gesture;
Step 3, packs up sunshade net in the tobacco grand cross phase, accepts illumination, opens booth side form in the hardening phase, ventilation and penetrating light, and spray Rare-earth elements nutrient solution in the grand cross phase;
Step 4, in the time that cigarette seedling leaf occurs that overlap joint shades mutually, carries out leaf-cutting;
Step 5, the assanation situation in moment monitoring cigarette seedling booth, clears up sterilization every first quarter moon to booth, sprays insect protected medicament;
Step 6, floating plate dress matrix, seed is broadcast in the floating plate hole that matrix is housed, and floats in the nutrition pond of facility plastic greenhouse, and fertilizer imposes in the water in nutrition pond, seedling raising process management, 7-10 days hardenings before transplanting, are directly transplanted to land for growing field crops after hardening.
Further, the concrete grammar of the sowing described in step 1 is as follows:
Step 2, medium in tray, fill matrix to float behind the each hole of dish, on level land, stamps 2-3 time, guarantees that each hole matrix filling degree of tightness is suitable, then strikes off card with scraper plate, and guaranteeing to float on Pan Gegeng does not have matrix, consistent to guarantee the pressing cave depth;
Step 3, pressure cave, with acupoint pressing plate, in Shang Ya cave, the hole of the seedling-cultivating tray that fills matrix and strike off, sowing acupoint depth is 7mm left and right;
Step 4, sowing, seeder sowing by hand, and check at any time seeding quality, adjust in time if any broadcast leakage;
Step 5, covering, cover the above-mentioned matrix of dish of floating of having sowed, and then strikes off with scraper plate;
Further, the concrete grammar of the fertilising described in step 2 is as follows:
In whole seedling raising process, fertilising point is carried out for 3 times: while emerging for the first time 50% of the total fertile amount of Shi; Start leaf-cutting and execute fertilizer for the second time, 30% of the total fertile amount of Shi; Apply fertilizer for the third time and grasp flexibly according to tobacco seedling growth gesture, seedling look greener growth potential is not executed by force nutrient liquid fertilizer for the third time, after twice of leaf-cutting, will press as early as possible every m
3water is executed 0.4kg superphosphate and 0.3kg potassium sulfate, and to suppress blade excessive growth, " two black diseases " occurs in control; Growth potential is sane, and seedling look light green does not need to execute fertile for the third time; A little less than growth potential, the cigarette seedling that seedling look lighter, suitably mends and executes nutrient liquid fertilizer for the third time while cutting for the second time after leaf, consumption not super total fertilizing amount 20%, take phosphorus potash fertilizer as main;
Further, the concrete grammar of the leaf-cutting described in step 4 is as follows:
In seedling raising process, when blade overlaps while shading mutually, need carry out leaf-cutting apart from the above 3cm of growing point place, each leaf-cutting cuts off 1/3rd of maximum blade, and the king-sized blade of minority cuts off at most half, is no more than at most the half of blade, not sad leaf, stops excessive leaf-cutting;
Further, the concrete using method of the sunshade net described in step 3 is as follows:
Grow seedlings early stage, should pack up as early as possible sunshade net every morning and wait for and shining upon, matrix is early heated up, to obtain the higher accumulated temperature time long; Stop the sun and slowly pack up again sunshade net after out; When excessively strong, the temperature of sunlight at noon exceedes 28-32 ℃, should temporarily launch sunshade net, light weakened the rear sunshade net of packing up in time and shone seedling afternoon, and keep growing seedlings card and indoor higher temperature do not fall temperature;
Grow seedlings the middle and later periods, pack up sunshade net all day, allow cigarette seedling fully accept illumination, launch sunshade net when intense light irradiation high temperature, afternoon, light weakened the rear sunshade net solarization seedling of packing up in time, strove for obtaining higher accumulated temperature; Sunshade net had certain insulation effect and prevents from revealing dripping and splash and break the effect of card hypothallus at night, and sowing also can launch sunshade net night at initial stage; After Qi Miao, nocturnal temperature gos up, and also can within 2-3 hour before the sun sets, launch to pack up up to the next morning after screened postive for reducing operation again.
Further, the concrete grammar of the hardening described in step 3 is as follows:
The major way of floating seedlings hardening has two kinds:
The one, under the prerequisite of suitably ventilating, progressively improve temperature to 28 ℃ left and right time expand, strengthen intensity of illumination simultaneously, allow cigarette seedling reform of nature climatic environment;
The 2nd, the processing of cutting off the water supply, the toughness of raising cigarette seedling cane, strengthens cigarette seedling resistance.
Further, the temperature requirement in described efficient tobacco seedling method is as follows:
When having solar radiation, low thermophase and cold district to heat up early, 22-28 ℃ of scope operation; Temperature keeps the time between 22-28 ℃ longer, is more conducive to cultivate strong sprout; When night or few sunshine, to note striving temperature insulation.
Further, the humidity requirement in described efficient tobacco seedling method is as follows:
After planting, to Qi Miaoqian, the indoor relative moisture of canopy keeps 85% left and right, and 28 ℃ time, wet-and-dry-bulb thermometer differs by more than 1.5 ℃; Little cross phase humidity remains on 80% left and right, 2 ℃ of left and right of wet-bulb depression 28 ℃ time; After the grand cross phase, humidity keeps 70%-75%, approximately 3.0 ℃ of wet-bulb depressions 28 ℃ time.In the time that humidity is on the low side, extend the time of airtight canopy film, reduce and leak informaton the time; In the time that humidity is bigger than normal, extends and leak informaton the time;
Before the little cross phase of cigarette seedling, meet serious dewfall and on canopy film, form large hanging drop water, if humidity is greater than 85% in canopy, part hanging drop water gasifies when fine day can take to wait for intensification 28-32 ℃ early morning, open immediately skylight, top simultaneously, after 15-30 minute, close, then the gasification hanging drop water that heats up, operation is repeatedly repeatedly; Adhere to high temperature hydrofuge, just can effectively reduce canopy indoor humidity, prevent from revealing dripping and spatter and fly seed or seedling; While stopping low temperature dewfall, open the invalid operation of door and window or blower fan hydrofuge;
Before and after emerging, on seedling dish, there is salt marsh layer, prove that in booth, humidity is too low; Grow seedlings not moistening on early stage morning or 3 hours canopy film inwalls of post sunset, cigarette seedling lobus cardiacus is lower without humidity in little dewdrop explanation booth;
In a word, emerge and kept humidity in 85% left and right between eve, remain between 80%-85% little seedling stage moves; After starting to cut seedling, canopy indoor humidity should remain on 75% left and right, prevents the humidity horticultural covering film initiation disease of dripping; In the time that humidity is too high, should in the time that noon, temperature was higher, opens skylight, top and carry out hydrofuge in conjunction with cooling.
Further, in each cave of growing seedlings, broadcast 1 seed.
Further, when sowing, scraper plate is made as strip, wide 3-4cm, and Length Ratio floating plate width is slightly long.
High efficiency tobacco seedling breeding method provided by the invention, by measures such as every bunch planting single seed, consistent, the accurate temperature and humidity managements of the sowing depth, guarantee neat, the big or small uniformity of tobacco seedling growth, improve the regularity of emerging, strengthen cigarette seedling improving activity of root system, promote growing of cigarette seedling, improved cigarette seedling quality, be conducive to cultivate anosis healthy and strong cigarette seedling, planting percent reaches more than 98%, reduce production cost, greatly improved rate in strong sprout.
Accompanying drawing explanation
Fig. 1 is the high efficiency tobacco seedling breeding method flow chart that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the high efficiency tobacco seedling breeding method of the embodiment of the present invention comprises the following steps:
S101: determine sowing time according to transplanting time roll-back method, precisely sow in the time in the early spring, guarantee that seedling-cultivating tray is interior without broadcast leakage, the surface of the seed covers matrix 2mm;
S102: apply fertilizer for the first time in the time emerging, apply fertilizer for the second time while starting leaf-cutting, apply fertilizer for the third time and grasp flexibly according to tobacco seedling growth gesture;
S103: pack up sunshade net in the tobacco grand cross phase, accept illumination, open booth side form in the hardening phase, fully ventilation and penetrating light, and spray Rare-earth elements nutrient solution in the grand cross phase;
S104: in the time that cigarette seedling leaf occurs that overlap joint shades mutually, carry out leaf-cutting;
S105: the assanation situation in moment monitoring cigarette seedling booth, every first quarter moon, booth is cleared up to sterilization, spray insect protected medicament;
S106: floating plate dress matrix, seed is broadcast in the floating plate hole that matrix is housed, and floats in the nutrition pond of facility plastic greenhouse, and fertilizer imposes in the water in nutrition pond, seedling raising process management, 7-10 days hardenings before transplanting, are directly transplanted to land for growing field crops after hardening.
Further, the concrete grammar of the sowing described in step S101 is as follows:
Step 2, medium in tray, fill matrix to float behind the each hole of dish, on level land, stamps 2-3 time, guarantees that each hole matrix filling degree of tightness is suitable, then strikes off card with scraper plate, and guaranteeing to float on Pan Gegeng does not have matrix, consistent to guarantee the pressing cave depth;
Step 3, pressure cave, with acupoint pressing plate, in Shang Ya cave, the hole of the seedling-cultivating tray that fills matrix and strike off, sowing acupoint depth is 7mm left and right;
Step 4, sowing, seeder sowing by hand, and check at any time seeding quality, adjust in time if any broadcast leakage;
Step 5, covering, cover the above-mentioned matrix of dish of floating of having sowed, and then strikes off with scraper plate
Further, the concrete grammar of the fertilising described in step S102 is as follows:
In whole seedling raising process, fertilising point is carried out for 3 times: while emerging for the first time 50% of the total fertile amount of Shi; Start leaf-cutting and execute fertilizer for the second time, 30% of the total fertile amount of Shi; Apply fertilizer for the third time and grasp flexibly according to tobacco seedling growth gesture, seedling look greener growth potential is not executed by force nutrient liquid fertilizer for the third time, after twice of leaf-cutting, will press as early as possible every m
3water is executed 0.4kg superphosphate and 0.3kg potassium sulfate, and to suppress blade excessive growth, " two black diseases " occurs in control; Growth potential is sane, and seedling look light green does not need to execute fertile for the third time; A little less than growth potential, the cigarette seedling that seedling look lighter, suitably mends and executes nutrient liquid fertilizer for the third time after cutting for the second time leaf, consumption not super total fertilizing amount 20%; In a word, the assurance of fertilizer should be grown to good with leaf look pale green, upright blade.
Further, the concrete grammar of the leaf-cutting described in step S104 is as follows:
In seedling raising process, when blade overlaps while shading mutually, need carry out leaf-cutting apart from the above 3cm of growing point place, each leaf-cutting cuts off 1/3rd of maximum blade, and the king-sized blade of minority cuts off at most half, is no more than at most the half of blade, not sad leaf, stops excessive leaf-cutting;
Further, the concrete using method of the sunshade net described in step S103 is as follows:
Grow seedlings early stage, should pack up as early as possible sunshade net every morning and wait for and shining upon, matrix is early heated up, to obtain the higher accumulated temperature time long; Stop the sun and slowly pack up again sunshade net after out; When excessively strong, the temperature of sunlight at noon exceedes 28-32 ℃, should temporarily launch sunshade net, pack up in time sunshade net and shine seedling when afternoon, light weakened, keep growing seedlings card and indoor higher temperature do not fall temperature;
Grow seedlings the middle and later periods, pack up sunshade net all day, allow cigarette seedling fully accept illumination, launch sunshade net when intense light irradiation high temperature, afternoon, light weakened the rear sunshade net solarization seedling of packing up in time, strove for obtaining higher accumulated temperature; Sunshade net had certain insulation effect and prevents from revealing dripping and splash and break the effect of card hypothallus at night, and sowing also can launch sunshade net night at initial stage; After Qi Miao, nocturnal temperature gos up, and also can within 2-3 hour before the sun sets, launch to pack up compared with Gao Shizai up to second day temperature after screened postive for reducing operation.
Further, the concrete grammar of the hardening described in step S103 is as follows:
The major way of floating seedlings hardening has two kinds:
The one, under the prerequisite of suitably ventilating, progressively improve temperature to 28 ℃ left and right time expand, strengthen intensity of illumination simultaneously, allow cigarette seedling reform of nature climatic environment;
The 2nd, the processing of cutting off the water supply, the toughness of raising cigarette seedling cane, strengthens cigarette seedling resistance.
Send out 1000 times of liquid of 1-2 cloud large 120 of seedling spray in first 1-2 days, or 300 times of liquid of 99 protective plant protecting agents, or 0.2% potassium dihydrogen phosphate also can improve the cigarette seedling adaptive capacity of environment to external world.
Further, the temperature requirement in described efficient tobacco seedling method is as follows:
When having solar radiation, low thermophase and cold district to heat up early, 22-28 ℃ of scope operation; Temperature keeps the time between 22-28 ℃ longer, is more conducive to cultivate strong sprout; When night or few sunshine, to note striving temperature insulation.
Further, the humidity requirement in described efficient tobacco seedling method is as follows:
After planting, to Qi Miaoqian, the indoor relative moisture of canopy keeps 85% left and right, and 28 ℃ time, wet-bulb depression is greater than 1.5 ℃; Little cross phase humidity remains on 80% left and right, 2 ℃ of left and right of wet-bulb depression 28 ℃ time; After the grand cross phase, humidity keeps 70%-75%, approximately 3.0 ℃ of wet-bulb depressions 28 ℃ time.In the time that humidity is on the low side, extend the time of airtight canopy film, reduce and leak informaton the time; In the time that humidity is bigger than normal, extends and leak informaton the time;
Before the little cross phase of cigarette seedling, meet serious dewfall and on canopy film, form large hanging drop water, if humidity is greater than 85% in canopy, when can taking to wait for intensification 28-32 ℃ early morning, fine day gasifies after part hanging drop water, open immediately skylight, top simultaneously, after 15-30 minute, close, then the gasification hanging drop water that heats up, operation is repeatedly repeatedly; Adhere to high temperature hydrofuge, just can effectively reduce canopy indoor humidity, prevent from revealing dripping and spatter and fly seed or seedling; While stopping low temperature dewfall, open the invalid operation of door and window or blower fan hydrofuge;
Before and after emerging, on seedling dish, there is salt marsh layer, prove that booth humidity is too low; Grow seedlings not moistening on early stage morning or 3 hours canopy film inwalls of post sunset, cigarette seedling lobus cardiacus is lower without humidity in little dewdrop explanation booth;
In a word, emerge and kept humidity in 85% left and right between eve, remain between 80%-85% little seedling stage moves; After starting to cut seedling, canopy indoor humidity should remain on 75% left and right, prevents the humidity horticultural covering film initiation disease of dripping; In the time that humidity is too high, should in the time that noon, temperature was higher, opens limit film and carry out hydrofuge in conjunction with cooling.
Further, in each cave of growing seedlings, broadcast 1 seed.
Further, when sowing, scraper plate is made as strip, wide 3-4cm, and Length Ratio floating plate width is slightly long, guarantees that the surface of the seed covers matrix 2mm.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a high efficiency tobacco seedling breeding method, is characterized in that, this high efficiency tobacco seedling breeding method comprises the following steps:
Step 1, adopts roll-back method to determine sowing time according to transplanting time, precisely sows in the time in the early spring, guarantees seeding quality, guarantees without broadcast leakage, and the surface of the seed covers matrix 2mm;
Step 2 is applied fertilizer for the first time in the time of neat seedling, while starting leaf-cutting, applies fertilizer for the second time, applies fertilizer for the third time and grasps flexibly according to tobacco seedling growth gesture;
Step 3, packs up sunshade net completely in the cigarette seedling grand cross phase, accepts illumination; Opening booth side form in the hardening phase fully ventilates; And spray Rare-earth elements nutrient solution in the grand cross phase;
Step 4, in the time that cigarette seedling leaf occurs that overlap joint shades mutually, carries out leaf-cutting;
Step 5, the assanation situation in moment monitoring cigarette seedling booth, clears up sterilization every first quarter moon to booth, sprays insect protected medicament;
Step 6, floating plate dress matrix, seed is broadcast in the floating plate hole that matrix is housed, and floats in the nutrition pond of facility plastic greenhouse, and fertilizer imposes in the water in nutrition pond, seedling raising process management, 7-10 days hardenings before transplanting, are directly transplanted to land for growing field crops after hardening.
2. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, the concrete grammar of the sowing described in step 1 is as follows:
Step 1, water supply in media regulate, and sowing the previous day is matrix stirrings that add water, water content of substrate with " hold agglomerating, touch loose " be as the criterion, mix up rear heap and seal to use in second day;
Step 2, medium in tray, fill matrix to float behind the each hole of dish, on level land, stamps 2-3 time, guarantees that each hole matrix filling degree of tightness is suitable, then strikes off card with scraper plate, and guaranteeing to float on Pan Gegeng does not have matrix, consistent to guarantee the pressing cave depth;
Step 3, pressure cave, with acupoint pressing plate, in Shang Ya cave, the hole of the seedling-cultivating tray that fills matrix and strike off, sowing acupoint depth is 7mm left and right;
Step 4, sowing, seeder sowing by hand, and check at any time seeding quality, adjust in time if any broadcast leakage;
Step 5, covering, cover the above-mentioned matrix of dish of floating of having sowed, and then strikes off with scraper plate, guaranteed that sowing depth is consistent.
3. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, the concrete grammar of the fertilising described in step 2 is as follows:
In whole seedling raising process, fertilising point is carried out for 3 times: while emerging for the first time 50% of the total fertile amount of Shi; Start leaf-cutting and execute fertilizer for the second time, 30% of the total fertile amount of Shi; Apply fertilizer for the third time and grasp flexibly according to tobacco seedling growth gesture, seedling look greener growth potential is not executed by force nutrient liquid fertilizer for the third time, after twice of leaf-cutting, will press as early as possible every m
3water is executed 0.4kg superphosphate and 0.3kg potassium sulfate, and to suppress blade excessive growth, " two black diseases " occurs in control; Growth potential is sane, and seedling look light green does not need to execute fertile for the third time; A little less than growth potential, the cigarette seedling that seedling look lighter, suitably mends and executes nutrient liquid fertilizer for the third time while cutting for the second time after leaf, consumption not super total fertilizing amount 20%, and take phosphorus potash fertilizer as main; In a word, the assurance of fertilizer should be grown to good with leaf look pale green, upright blade;
Seedling raising process is opened skylight or side form in good time, to supplement CO in booth
2, guarantee the required CO of cigarette seedling photosynthesis
2fertilizer abundance.
4. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, the concrete grammar of the leaf-cutting described in step 4 is as follows:
In seedling raising process, when blade overlaps while shading mutually, need carry out leaf-cutting apart from the above 3cm of growing point place, each leaf-cutting cuts off 1/3rd of maximum blade, and the king-sized blade of minority cuts off at most half, is no more than at most the half of blade, not sad leaf, stops excessive leaf-cutting.
5. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, the concrete using method of the sunshade net described in step 3 is as follows:
Grow seedlings early stage, should pack up as early as possible sunshade net every morning and wait for and shining upon, matrix is early heated up, to obtain the higher accumulated temperature time long; Stop the sun and slowly pack up again sunshade net after out; When excessively strong, the temperature of sunlight at noon exceedes 28-32 ℃, should temporarily launch sunshade net, light weakened the rear sunshade net of packing up in time and shone seedling afternoon, kept growing seedlings card and indoor higher temperature;
Grow seedlings the middle and later periods, pack up sunshade net all day on daytime, allows cigarette seedling expose to sunlight, and fully carries out photosynthesis, strives for obtaining higher accumulated temperature, impels cigarette seedling steadily and surely to grow; Sunshade net had certain insulation effect and prevents from revealing dripping and splash and break the effect of card hypothallus at night, and sowing also can launch sunshade net night at initial stage; After Qi Miao, nocturnal temperature gos up, and also can within 2-3 hour before the sun sets, launch to pack up compared with Gao Shizai up to second day temperature after screened postive for reducing operation.
6. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, the concrete grammar of the hardening described in step 3 is as follows:
The major way of floating seedlings hardening has two kinds:
The one, under the prerequisite of suitably ventilating, progressively improve temperature to 28 ℃ left and right time expand, strengthen intensity of illumination simultaneously, allow cigarette seedling reform of nature climatic environment;
The 2nd, the processing of cutting off the water supply, the toughness of raising cigarette seedling cane, strengthens cigarette seedling resistance.
7. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, the temperature requirement in described efficient tobacco seedling method is as follows:
When having solar radiation, low thermophase and cold district to heat up early, 22-28 ℃ of scope operation; Temperature keeps the time between 22-28 ℃ longer, is more conducive to cultivate strong sprout; When night or few sunshine, to note striving temperature insulation.
8. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, the humidity requirement in described efficient tobacco seedling method is as follows:
After planting, to Qi Miaoqian, the indoor relative moisture of canopy keeps 85% left and right, and 28 ℃ time, wet-bulb depression is greater than 1.5 ℃; Little cross phase humidity remains on 80% left and right, 2 ℃ of left and right of wet-bulb depression 28 ℃ time; After the grand cross phase, humidity keeps 70%-75%, approximately 3.0 ℃ of wet-bulb depressions 28 ℃ time; In the time that humidity is on the low side, extend the time of airtight canopy film, reduce and leak informaton the time; In the time that humidity is bigger than normal, extends and leak informaton the time;
Before the little cross phase of cigarette seedling, meet serious dewfall and on canopy film, form large hanging drop water, if humidity is greater than 85% in canopy, when can taking to wait for intensification 28-32 ℃ early morning, fine day gasifies after part hanging drop water, open immediately skylight, top, after 15-30 minute, close, then the gasification hanging drop water that heats up, operation is repeatedly repeatedly; Adhere to high temperature hydrofuge, just can effectively reduce canopy indoor humidity, prevent from revealing dripping and spatter and fly seed or seedling; While stopping low temperature dewfall, open the invalid operation of door and window or blower fan hydrofuge;
Before and after emerging, on seedling dish, there is salt marsh layer, prove that in booth, humidity is too low; Grow seedlings not moistening on early stage morning or 3 hours canopy film inwalls of post sunset, cigarette seedling lobus cardiacus is lower without humidity in little dewdrop explanation booth;
In a word, emerge and kept humidity in 85% left and right between eve, remain between 80%-85% little seedling stage moves; After starting to cut seedling, canopy indoor humidity should remain on 75% left and right, prevents the humidity horticultural covering film initiation disease of dripping; In the time that humidity is too high, should in the time that noon, temperature was higher, opens skylight, top and carry out hydrofuge in conjunction with cooling.
9. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, in each cave of growing seedlings of step 6, only broadcasts a kind.
10. high efficiency tobacco seedling breeding method as claimed in claim 1, is characterized in that, when sowing, scraper plate is made as strip, wide 3-4cm, and Length Ratio floating plate width is slightly long.
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| CN104429459A (en) * | 2014-10-31 | 2015-03-25 | 红塔烟草(集团)有限责任公司 | Organic tobacco seedling culturing method |
| CN104737896A (en) * | 2015-04-13 | 2015-07-01 | 湖南省耐为数控技术有限公司 | Precise digitized seedling system |
| CN106105745A (en) * | 2016-07-27 | 2016-11-16 | 姚红亮 | The implantation methods of Nicotiana tabacum L. |
| CN106718766A (en) * | 2017-01-06 | 2017-05-31 | 贵州康诺源生物科技有限公司 | Lip river Radix Codonopsis roc floating fast seedling growing and implantation methods |
| CN106717894A (en) * | 2016-12-09 | 2017-05-31 | 中国烟草总公司广东省公司 | A kind of method that flue-cured tobacco cultivars H892 yield of tobacco is improved by adjusting micro-ecological environment |
| CN107581043A (en) * | 2017-09-30 | 2018-01-16 | 云南省烟草农业科学研究院 | A kind of tobacco floating seed rearing method |
| CN107912289A (en) * | 2017-11-14 | 2018-04-17 | 中国农业科学院麻类研究所 | A kind of float seedling method of ramie |
| CN109258427A (en) * | 2018-10-26 | 2019-01-25 | 山东临沂烟草有限公司 | Tobacco seedlings floating seedlings forge seedling-growing method |
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| CN104429459A (en) * | 2014-10-31 | 2015-03-25 | 红塔烟草(集团)有限责任公司 | Organic tobacco seedling culturing method |
| CN104429459B (en) * | 2014-10-31 | 2015-09-16 | 红塔烟草(集团)有限责任公司 | A kind of seedling-cultivating method of organic tobacco |
| CN104737896A (en) * | 2015-04-13 | 2015-07-01 | 湖南省耐为数控技术有限公司 | Precise digitized seedling system |
| CN104737896B (en) * | 2015-04-13 | 2017-01-25 | 湖南省耐为数控技术有限公司 | Precise digitized seedling system |
| CN106105745A (en) * | 2016-07-27 | 2016-11-16 | 姚红亮 | The implantation methods of Nicotiana tabacum L. |
| CN106717894A (en) * | 2016-12-09 | 2017-05-31 | 中国烟草总公司广东省公司 | A kind of method that flue-cured tobacco cultivars H892 yield of tobacco is improved by adjusting micro-ecological environment |
| CN106718766A (en) * | 2017-01-06 | 2017-05-31 | 贵州康诺源生物科技有限公司 | Lip river Radix Codonopsis roc floating fast seedling growing and implantation methods |
| CN107581043A (en) * | 2017-09-30 | 2018-01-16 | 云南省烟草农业科学研究院 | A kind of tobacco floating seed rearing method |
| CN107912289A (en) * | 2017-11-14 | 2018-04-17 | 中国农业科学院麻类研究所 | A kind of float seedling method of ramie |
| CN109258427A (en) * | 2018-10-26 | 2019-01-25 | 山东临沂烟草有限公司 | Tobacco seedlings floating seedlings forge seedling-growing method |
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