CN107581043A - A kind of tobacco floating seed rearing method - Google Patents
A kind of tobacco floating seed rearing method Download PDFInfo
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- CN107581043A CN107581043A CN201710937363.1A CN201710937363A CN107581043A CN 107581043 A CN107581043 A CN 107581043A CN 201710937363 A CN201710937363 A CN 201710937363A CN 107581043 A CN107581043 A CN 107581043A
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Abstract
The invention discloses a kind of tobacco floating seed rearing method, including medium in tray, floating plate sowing, fertilizer management, water management, pest and disease damage pipe, leaf-cutting management, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm；Floating plate carries out first time fertilising in 7 ~ 10 days after entering water, and nitrogen concentration is 100 ~ 160 N ppm, after fertilizer is uniformly dispersed in nursery pond, determines nursery pond water electrical conductivity, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm；Floating plate carries out first time top dressing in 28 ~ 35 days after entering water, and nitrogen concentration is 100 ~ 130 N ppm, after fertilizer is uniformly dispersed in nursery pond, determines nursery pond water electrical conductivity, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm；Floating plate carries out second of top dressing in 38 ~ 45 days after entering water, and nitrogen concentration is 50 ~ 80 N ppm, after fertilizer is uniformly dispersed in nursery pond, determines nursery pond water electrical conductivity, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm.
Description
Technical field
The invention belongs to tobacco cultivation technical field, and in particular to a kind of tobacco floating seed rearing method.
Background technology
Nursery is the primary link of cured tobacco production.The tobacco seedlings that seedling is in good time, quantity is sufficient, neat, healthy and strong are cultivated, have been
Into the prerequisite of the annual tobacco planting production schedule.Farmer's proverb:" having seedling three to divide receipts, the good half of seedling is received ", " seedling is good a piece of, and cigarette is good
One dam ", absolutely prove that the tobacco seedlings for cultivating stalwartness are that cured tobacco production is successfully basic.And during tobacco floating seed rearing,
Fertilising is a particularly important link.Science Tree Precise Fertilization is the key successfully applied fertilizer, and fertilising is not accurate, very few both to cause
Tobacco seedlings de- fertilizer in part is not grown, the excessive phenomenon for causing part tobacco seedlings burn seedlings again.Meanwhile the condition of foundation field transplanting is suitable
Degree, Tree Precise Fertilization can regulate and control the seedling progress of tobacco seedlings.
Link of being applied fertilizer at present during tobacco floating seedling is mainly seedling-raising technique personnel according to the growth of cereal crop seedlings（Growing way, appearance）, knot
Close nursery experience and determine dose, but dose is held than less easily, more taking human as based on micro-judgment, this just needs
Operated by experienced technical staff, when the shortcomings that operation requirement is higher, especially extensive batch nursery be present, people
Work micro-judgment there is certain error, can not Tree Precise Fertilization, big Tanaka just withdraw deposit out the homogenieities of tobacco seedlings differ the problem of,
Tobacco seedlings regularity is influenceed, is not easy to scale breeding management.In addition, nursery pond fertilising at this stage to be to be segmented based on the fertilising that sets up an office,
I.e. each nursery pond, which is set, is uniformly arranged several fertilising points, and the different material that should apply fertilizer is dissolved in water according to the ratio of calculating and is made into
Solution, each fertilising point is evenly distributed to, applied in nursery pond.Although the uniform of fertilising is so improved to a certain extent
Property, but the risk of local burn seedlings is still had in fertilising point, higher are required to operating personnel, and it is abundant when making liquid fertilizer
Stir, virtually add labor intensity and time.
In general, there are four defects in the fertilization mode of current leaf tobacco production floating plate seedling system, method and management：
First, the precision that applies fertilizer is poor；2nd, operating personnel's professional knowledge requires high；3rd, labor intensity is high；4th, working time is grown.
Therefore, research and development one kind is easy to fertilizing management, fertilising accurate and efficient tobacco floating seed rearing method is very necessary
's.
The content of the invention
It is an object of the invention to provide a kind of tobacco floating seed rearing method.
The object of the present invention is achieved like this, including the sowing of medium in tray, floating plate, fertilizer management, water management, disease pest
Evil pipe, leaf-cutting management, temperature treatment, described fertilizer management be before floating plate enters water, nursery pond water electrical conductivity for 0.1 ~
0.35mS/cm；Floating plate carries out first time fertilising in 7 ~ 10 days after entering water, and nitrogen concentration is 100 ~ 160 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 1.25 ~ 2.18 mS/cm；After floating plate enters water
Carry out first time top dressing within 28 ~ 35 days, nitrogen concentration is 100 ~ 130 N ppm, and after fertilizer is uniformly dispersed in nursery pond, measure is educated
Seedling pond water electrical conductivity, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm；Floating plate is chased after for 38 ~ 45 days for the second time after entering water
Fertilizer, nitrogen concentration is 50 ~ 80 N ppm, after fertilizer is uniformly dispersed in nursery pond, determines nursery pond water electrical conductivity, controls pond
Water conductivity is in 0.67 ~ 1.26 mS/cm；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Compared with prior art, the present invention has following technique effect：
1st, the present invention has the advantages of accurate control, tobacco seedlings are neat by controlling nursery pond water electrical conductivity to control dose
Degree is high, is easy to large-scale cultivation strong sprout, and production error asks when effectively avoiding Conventional wisdom judgement from easily causing to produce in enormous quantities
Topic；And operate more convenient, reduce to the requirement of the professional knowledge of technical staff and labor intensity and time, improve
Tobacco plant seedling-raising technique and managerial skills；Meanwhile method of the invention can play the effect of strong sprout, have emergence rate,
The advantages of planting percent is high；
2nd, nursery pond of the invention can be such that the fertilizer of addition is quickly well mixed with larval rearing water, efficiently solve in nursery pond
Different zones concentration of fertilizer has differences the problem of excessive, avoids uneven fertilizer, local burn seedlings, the de- fertile phenomenon in part from occurring, protects
It is neat to hinder tobacco seedling growth；Separate mesh in nursery pond of the present invention can play compartmentation to the water circulation that raising surfing pump is formed, and avoid
Larval rearing water agitation is excessive；The data of conductivity detector detection easily can carry out accurate judgement to nursery pond dose.
Brief description of the drawings
Fig. 1 is the structural representation of nursery pond of the present invention；
Fig. 2 is the using state structure diagram that floating seedling tray is put into Fig. 1；
In figure：1- pond body bodies, 2- separate mesh, 3- raising surfing pumps, 4- support frames, 5- conductivity detectors, 6- fertilizer entrances, 7- drifts
Floating seedlings nursing plate.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings, but the present invention is not any limitation as in any way, base
In present invention teach that any conversion or replacement made, belong to protection scope of the present invention.
The present invention includes medium in tray, floating plate sowing, fertilizer management, water management, pest and disease damage as shown in 1 ~ Fig. 2 of accompanying drawing
Pipe, leaf-cutting management, temperature treatment, described fertilizer management be before floating plate enters water, nursery pond water electrical conductivity be 0.1 ~
0.35mS/cm；Floating plate carries out first time fertilising in 7 ~ 10 days after entering water, and nitrogen concentration is 100 ~ 160 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 1.25 ~ 2.18 mS/cm；After floating plate enters water
Carry out first time top dressing within 28 ~ 35 days, nitrogen concentration is 100 ~ 130 N ppm, and after fertilizer is uniformly dispersed in nursery pond, measure is educated
Seedling pond water electrical conductivity, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm；Floating plate is chased after for 38 ~ 45 days for the second time after entering water
Fertilizer, nitrogen concentration is 50 ~ 80 N ppm, after fertilizer is uniformly dispersed in nursery pond, determines nursery pond water electrical conductivity, controls pond
Water conductivity is in 0.67 ~ 1.26 mS/cm；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Described tobacco varieties dry cigarette to be dark.
Described tobacco varieties are flue-cured tobacco, are applied fertilizer for the first time, and nitrogen concentration is 100 ~ 150 N ppm, control water electrical conductivity
In 1.25 ~ 2.06mS/cm；First time top dressing, nitrogen concentration are 100 ~ 120 N ppm, control water electrical conductivity 1.25 ~
1.71mS/cm；Second of top dressing, nitrogen concentration are 50 ~ 80 N ppm, and control water electrical conductivity is in 0.67 ~ 1.26mS/cm.
Described tobacco varieties are burley tobaccos, are applied fertilizer for the first time, and nitrogen concentration is 100 ~ 130 N ppm, control water conductance
Rate is in 1.25 ~ 1.82mS/cm；First time top dressing, nitrogen concentration are 100 ~ 110 N ppm, control water electrical conductivity 1.25 ~
1.60mS/cm；Second of top dressing, nitrogen concentration are 50 ~ 80 N ppm, and control water electrical conductivity is in 0.67 ~ 1.26mS/cm.
Described medium in tray is first to mix seedling medium watering thoroughly, and makes seedling medium not agglomerating in holding, and is dissipated naturally
The rarefaction opened；Card is struck off then seedling medium uniformly to be filled and led up to card after, then sowing cave is beaten in card, sowing cave is deep
0.4~0.5cm, then pier disk 1~2 time, 8~10cm of pier disk height.
The seed of described floating plate sowing is pelleted seed.
Described water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods,
Water content of substrate is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 60 ~ 70%；During hardening, matrix is aqueous
Amount is maintained at 50%-60%, if slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon.
Described leaf-cutting management is after tobacco seedlings closing disk, and the blade surface morning carries out leaf-cutting when drying, and cuts 1 ~ 3 time altogether, often
It is secondary to cut off the 30 ~ 50% of maximum leaf, and retain growing point.
When described temperature treatment is floating plate seedbed, seedling growth greenhouse temperature is controlled at 13 ~ 25 DEG C；After heeling in, seedling growth greenhouse temperature
Control is at 20 ~ 28 DEG C.
Described nursery pond includes pond body body 1, separate mesh 2, raising surfing pump 3, support frame 4, conductivity detector 5, control
Device, described separate mesh 2 are arranged in pond body body 1, and separate mesh 2 is enclosed construction, and described raising surfing pump 3 is respectively arranged at
Corner in pond body body 1, described support frame 4 are located at the top of pond body body 1, and described conductivity detector 5 is set
In on support frame 4, and the test side of conductivity detector 5 is stretched to below the liquid level of pond body body 1, described controller and conductance
Rate detector 5 electrically connects.
Described floating plate specification is 162 hole standard floating discs, and long 66.5cm, wide 34cm, thick 5.5cm, aperture suitable for reading is
2.8cm, lower oral pore footpath are 0.8cm.
Described seedling medium pH value 6 ~ 7, unit weight 0.5g/cm3-0.9 g/cm3。
Head and the tail are corresponding successively for described raising surfing pump 3, form the current of four sides in pond body body 1 and follow clockwise or counterclockwise
Ring.
The described side of pond body body 1 is provided with fertilizer entrance 6.
The specification of described pond body body 1 is long 680 ~ 700cm in pond, pond 130 ~ 150cm of inner width, the deep 15 ~ 25cm in pond.
The quantity of described conductivity detector 5 is multiple.
The described both ends bottom of support frame 4 is provided with pulley, enables support frame 4 mobile above pond body body 1.
Described controller is the controller with display screen.
The course of work of nursery pond of the present invention：When needing fertilising, fertilizer is put into pond body body 1 by fertilizer entrance 6, opened
Raising surfing pump 3 is opened, four sides of the raising surfing pump 3 along pond body body 1 form the current circulated, and separate mesh is to recirculated water during flowing
Compartmentation has been flowed, has avoided larval rearing water agitation excessive and influences floating seedling tray, after raising surfing pump 3 runs a period of time, work as electricity
When the water conductivity values that conductance detector 5 detects reach specified number range, you can complete fertilizing operation.
With reference to embodiment 1 ~ 27, the invention will be further described.
Embodiment 1
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 1.25 ~ 1.82 mS/cm（Within this range
Arbitrary value）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, treats fertilizer in nursery pond
After being uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 2
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 160 N ppm, treats that fertilizer is being educated
After Miao Chizhong is uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（In this model
Enclose interior arbitrary value）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 130 N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 3
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is being educated
After Miao Chizhong is uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（In this model
Enclose interior arbitrary value）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 115 N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 4
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 1.25 ~ 1.82 mS/cm（Within this range
Arbitrary value）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, treats fertilizer in nursery pond
After being uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties dry cigarette to be dark.
Embodiment 5
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 160 N ppm, treats that fertilizer is being educated
After Miao Chizhong is uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（In this model
Enclose interior arbitrary value）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 130 N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties dry cigarette to be dark.
Embodiment 6
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is being educated
After Miao Chizhong is uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（In this model
Enclose interior arbitrary value）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 115 N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties dry cigarette to be dark.
Embodiment 7
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.06mS/cm（Within this range
Arbitrary value）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats fertilizer in nursery pond
After being uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.71mS/cm（Times within this range
Meaning value）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, treats that fertilizer disperses in nursery pond
After uniformly, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Within this range any
Value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties are flue-cured tobacco.
Embodiment 8
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 150 N ppm, treats that fertilizer is being educated
After Miao Chizhong is uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.06 mS/cm（In this model
Enclose interior arbitrary value）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 120 N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.71 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties are flue-cured tobacco.
Embodiment 9
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 125N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.06 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 110 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 1.25 ~ 1.71mS/cm（Within this range
Arbitrary value）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, treats that fertilizer divides in nursery pond
After dissipating uniformly, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Times within this range
Meaning value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties are flue-cured tobacco.
Embodiment 10
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82mS/cm（Within this range
Arbitrary value）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats fertilizer in nursery pond
After being uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.60mS/cm（Times within this range
Meaning value）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, treats that fertilizer disperses in nursery pond
After uniformly, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Within this range any
Value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties are burley tobaccos.
Embodiment 11
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is being educated
After Miao Chizhong is uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（In this model
Enclose interior arbitrary value）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 110 N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.60 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 0.67 ~ 1.26 mS/cm（Within this range
Arbitrary value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties are burley tobaccos.
Embodiment 12
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment, described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Herein
In the range of arbitrary value）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 115N ppm, treats fertilizer in nursery
After being uniformly dispersed in pond, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（In this scope
Interior arbitrary value）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 105 N ppm, treats fertilizer in nursery pond
In be uniformly dispersed after, determine nursery pond water electrical conductivity, control water electrical conductivity in 1.25 ~ 1.60mS/cm（Within this range
Arbitrary value）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, treats that fertilizer divides in nursery pond
After dissipating uniformly, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Times within this range
Meaning value）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%；
Described tobacco varieties are burley tobaccos.
Embodiment 13
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.4cm, then pier disk 1 time, pier disk height
8cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 14
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.5cm, then pier disk 2 times, pier disk height
10cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 160 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 15
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Described medium in tray is first to mix seedling medium watering thoroughly, and makes seedling medium not agglomerating in holding, and is scattered naturally
Rarefaction；Card is struck off then seedling medium uniformly to be filled and led up to card after, then sowing cave is beaten in card, sowing cave is deep
0.45cm, then pier disk 2 times, pier disk height 9cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 115 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 16
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.4cm, then pier disk 1 time, pier disk height
8cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 60%；During hardening, water content of substrate is maintained at 50%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 17
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.5cm, then pier disk 2 times, pier disk height
10cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 160 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 70%；During hardening, water content of substrate is maintained at 60%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 18
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Described medium in tray is first to mix seedling medium watering thoroughly, and makes seedling medium not agglomerating in holding, and is scattered naturally
Rarefaction；Card is struck off then seedling medium uniformly to be filled and led up to card after, then sowing cave is beaten in card, sowing cave is deep
0.45cm, then pier disk 2 times, pier disk height 9cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 115 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 65%；During hardening, water content of substrate is maintained at 55%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 19
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.4cm, then pier disk 1 time, pier disk height
8cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 60%；During hardening, water content of substrate is maintained at 50%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Leaf-cutting management is after tobacco seedlings closing disk, and the blade surface morning carries out leaf-cutting when drying, and cuts altogether 1 time, cuts off maximum leaf every time
30%, and retain growing point；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 20
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.5cm, then pier disk 2 times, pier disk height
10cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 160 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 70%；During hardening, water content of substrate is maintained at 60%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Leaf-cutting management is after tobacco seedlings closing disk, and the blade surface morning carries out leaf-cutting when drying, and cuts altogether 3 times, cuts off maximum leaf every time
30%, and retain growing point；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 21
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Described medium in tray is first to mix seedling medium watering thoroughly, and makes seedling medium not agglomerating in holding, and is scattered naturally
Rarefaction；Card is struck off then seedling medium uniformly to be filled and led up to card after, then sowing cave is beaten in card, sowing cave is deep
0.45cm, then pier disk 2 times, pier disk height 9cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 115 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 65%；During hardening, water content of substrate is maintained at 55%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Leaf-cutting management is after tobacco seedlings closing disk, and the blade surface morning carries out leaf-cutting when drying, and cuts altogether 1 time, cuts off maximum leaf every time
50%, and retain growing point；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 22
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.4cm, then pier disk 1 time, pier disk height
8cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 7 days after entering water, and nitrogen concentration is 100N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 28 days after entering water, and nitrogen concentration is 100 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 38 days after entering water, and nitrogen concentration is 50 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 60%；During hardening, water content of substrate is maintained at 50%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Leaf-cutting management is after tobacco seedlings closing disk, and the blade surface morning carries out leaf-cutting when drying, and cuts altogether 1 time, cuts off maximum leaf every time
30%, and retain growing point；
When temperature treatment is floating plate seedbed, seedling growth greenhouse temperature is controlled at 13 DEG C；After heeling in, seedling growth greenhouse temperature is controlled at 20 DEG C；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 23
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Medium in tray is first to mix seedling medium thoroughly, and pockets of seedling medium is rubbed with the hands and is split into rarefaction；Then by seedling medium
Card is struck off after uniformly filling and leading up card, then sowing cave is beaten in card, sows cave depth 0.5cm, then pier disk 2 times, pier disk height
10cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 10 days after entering water, and nitrogen concentration is 160 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 35 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 45 days after entering water, and nitrogen concentration is 80 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 70%；During hardening, water content of substrate is maintained at 60%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Leaf-cutting management is after tobacco seedlings closing disk, and the blade surface morning carries out leaf-cutting when drying, and cuts altogether 3 times, cuts off maximum leaf every time
30%, and retain growing point；
When temperature treatment is floating plate seedbed, seedling growth greenhouse temperature is controlled at 25 DEG C；After heeling in, seedling growth greenhouse temperature is controlled at 28 DEG C；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
Embodiment 24
Tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe, leaf-cutting pipe
Reason, temperature treatment；
Described medium in tray is first to mix seedling medium watering thoroughly, and makes seedling medium not agglomerating in holding, and is scattered naturally
Rarefaction；Card is struck off then seedling medium uniformly to be filled and led up to card after, then sowing cave is beaten in card, sowing cave is deep
0.45cm, then pier disk 2 times, pier disk height 9cm；
Fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is 0.1 ~ 0.35mS/cm（Arbitrary value within this range
）；Floating plate carries out first time fertilising in 8 days after entering water, and nitrogen concentration is 130 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out first time top dressing in 32 days after entering water, and nitrogen concentration is 115 N ppm, treats that fertilizer is uniformly dispersed in nursery pond
Afterwards, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm（Arbitrary value within this range is equal
Can）；Floating plate carries out second of top dressing in 41 days after entering water, and nitrogen concentration is 65 N ppm, after fertilizer is uniformly dispersed in nursery pond,
Nursery pond water electrical conductivity is determined, control water electrical conductivity is in 0.67 ~ 1.26 mS/cm（Arbitrary value within this range）；
Water management is that after planting floating pool water level keeps relatively uniform to before emerging；Emerge to 5 leaf periods, water content of substrate
It is maintained at 80%；Before 5 leaf period to hardenings, water content of substrate is maintained at 65%；During hardening, water content of substrate is maintained at 55%, if
When slight wilt occurs for fine day noon tobacco seedlings, sprayed water in the afternoon；
Leaf-cutting management is after tobacco seedlings closing disk, and the blade surface morning carries out leaf-cutting when drying, and cuts altogether 1 time, cuts off maximum leaf every time
50%, and retain growing point；
When temperature treatment is floating plate seedbed, seedling growth greenhouse temperature is controlled at 19 DEG C；After heeling in, seedling growth greenhouse temperature is controlled at 24 DEG C；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
In embodiment 25 ~ 27, test group is the method floating seedlings of the present invention, and control group is conventional method floating seedlings,
Tobacco varieties are from flue-cured tobacco, burley tobaccos, dark drying cigarette.
Embodiment 25：The dose comparing result of tobacco leaf floating plate nursery difference method for culturing seedlings
The Fertilizer Application of Tobacco amount of table 1 counts
The burley tobaccos dose of table 2 counts
Table 3 is dark to dry cigarette dose statistics
From table 1 ~ 3, the total dose of flue-cured tobacco species test group is 653g, and control group 800g, test group is compared with control group reduction
147g；The total dose of burley tobaccos species test group is 756g, control group 860g, and test group reduces 104g compared with control group；
It is 786g that dark color, which dries the total dose of cigarette species test group, control group 920g, and test group reduces 134g compared with control group.
Embodiment 26：The fertilising used time Statistical Comparison result of tobacco leaf floating plate nursery difference method for culturing seedlings
The tobacco seedbed phase fertilizing management mode of table 4 records with the used time
As shown in Table 4, it is automatically brought into operation during the molten fertilizer of test group using this nursery pond, it is not necessary to manual operation, directly come into operation, and it is right
Dissolved according to group for Traditional Man, the artificial used time amounts to 30min；And for the first time apply fertilizer, first time top dressing, second of top dressing when, examination
Testing group only needs to put into fertilizer from fertilizer entrance, and total used time is 3min, and control group needs worker to come and go multiple throwing fertilizer
Point, it is 24min when sharing；Fertilising is carried out before top dressing when judging, test group judges only to need machine reading, when shared
1min, and control group needs worker's micro-judgment, 6min when sharing；Test group amounts to used time 4min, and control group amounts to the used time
60min；Test group is lower 56min than the control group total used time.
The seedling economical character comparing result of the tobacco leaf floating plate nursery difference method for culturing seedlings of embodiment 27
The flue-cured tobacco of table 5 is into seedling stage economical character（Seedling age 50 days）
The burley tobaccos of table 6 are into seedling stage economical character（Seedling age 60 days）
The dark cigarette that dries of table 7 is into seedling stage economical character（Seedling age 60 days）
From table 5 ~ 7, flue-cured tobacco species into seedling stage economical character, test group is than the SPAD values of control group, ground fresh weight, root
It is that fresh weight, root/shoot ratio, root system volume, root activity, stem be high, stem slightly increases, sick seedling rate decreases, and test group compares
High by 6.3% according to the emergence rate of group, planting percent is high by 3.9%, and strong sprout rate is high by 6.5%；Burley tobaccos species into seedling stage economical character, examination
Test group than the SPAD values of control group, ground fresh weight, root system fresh weight, root/shoot ratio, root system volume, root activity, stem be high, stem slightly has
Improved, sick seedling rate decreases, and test group is higher than the emergence rate of control group by 2%, and planting percent is high by 4%, and strong sprout rate is high by 3%；Dark color is dried in the air
Species of suncuring tabacco into seedling stage economical character, test group is than the SPAD values of control group, ground fresh weight, root system fresh weight, root/shoot ratio, root
It is that volume, root activity, stem be high, stem slightly increases, sick seedling rate decreases, and test group is higher than the emergence rate of control group
1.9%, planting percent is high by 3.5%, and strong sprout rate is high by 4.5%.
Claims (10)
1. a kind of tobacco floating seed rearing method, including the sowing of medium in tray, floating plate, fertilizer management, water management, pest and disease damage pipe,
Leaf-cutting management, temperature treatment, it is characterised in that described fertilizer management is before floating plate enters water, and nursery pond water electrical conductivity is
0.1~0.35mS/cm；Floating plate carries out first time fertilising in 7 ~ 10 days after entering water, and nitrogen concentration is 100 ~ 160 N ppm, treats that fertilizer is being educated
After Miao Chizhong is uniformly dispersed, nursery pond water electrical conductivity is determined, control water electrical conductivity is in 1.25 ~ 2.18 mS/cm；Floating plate enters
Carry out first time top dressing within 28 ~ 35 days after water, nitrogen concentration is 100 ~ 130 N ppm, after fertilizer is uniformly dispersed in nursery pond, is surveyed
Determine nursery pond water electrical conductivity, control water electrical conductivity is in 1.25 ~ 1.82 mS/cm；Floating plate carries out second in 38 ~ 45 days after entering water
Secondary top dressing, nitrogen concentration is 50 ~ 80 N ppm, after fertilizer is uniformly dispersed in nursery pond, determines nursery pond water electrical conductivity, control
Water electrical conductivity processed is in 0.67 ~ 1.26 mS/cm；
Described fertilizer is tobacco seedling special complex fertilizer, N:P2O5:K2O=18:12:13, total nutrient >=43%.
2. tobacco floating seed rearing method according to claim 1, it is characterised in that described tobacco varieties dry to be dark
Cigarette.
3. tobacco floating seed rearing method according to claim 1, it is characterised in that described tobacco varieties are flue-cured tobacco, first
Secondary fertilising, nitrogen concentration are 100 ~ 150 N ppm, and control water electrical conductivity is in 1.25 ~ 2.06mS/cm；First time top dressing, nitrogen concentration
For 100 ~ 120 N ppm, control water electrical conductivity is in 1.25 ~ 1.71mS/cm；Second of top dressing, nitrogen concentration are 50 ~ 80 N
Ppm, control water electrical conductivity is in 0.67 ~ 1.26mS/cm.
4. tobacco floating seed rearing method according to claim 1, it is characterised in that described tobacco varieties are burley tobaccos, the
Single-dose application, nitrogen concentration are 100 ~ 130 N ppm, and control water electrical conductivity is in 1.25 ~ 1.82mS/cm；First time top dressing, nitrogen are dense
Spend for 100 ~ 110 N ppm, control water electrical conductivity is in 1.25 ~ 1.60mS/cm；Second of top dressing, nitrogen concentration are 50 ~ 80 N
Ppm, control water electrical conductivity is in 0.67 ~ 1.26mS/cm.
5. tobacco floating seed rearing method according to claim 1, it is characterised in that described medium in tray is first by nursery
Matrix watering is mixed thoroughly, and makes seedling medium in not agglomerating, the rarefaction to scatter naturally of holding；Then seedling medium is uniformly filled out
Card is struck off behind the face of square position, then sowing cave, the deep 0.4~0.5cm in sowing cave, then pier disk 1~2 time, pier disk height 8 are beaten in card
~10cm.
6. tobacco floating seed rearing method according to claim 1, it is characterised in that the seed of described floating plate sowing is bag
Clothing kind.
7. tobacco floating seed rearing method according to claim 1, it is characterised in that described water management is after planting extremely
Floating pool water level keeps relatively uniform before emergence；Emergence to 5 leaf periods, water content of substrate is maintained at 80%；5 leaf periods are extremely
Before hardening, water content of substrate is maintained at 60 ~ 70%；During hardening, water content of substrate is maintained at 50%-60%, if fine day noon tobacco seedlings are sent out
During raw slight wilting, sprayed water in the afternoon.
8. tobacco floating seed rearing method according to claim 1, it is characterised in that described leaf-cutting management is sealed in tobacco seedlings
After disk, the blade surface morning carries out leaf-cutting when drying, and cuts altogether 1 ~ 3 time, cuts off the 30 ~ 50% of maximum leaf every time, and retain growth
Point.
9. tobacco floating seed rearing method according to claim 1, it is characterised in that described temperature treatment is floating plate seedbed
When, seedling growth greenhouse temperature is controlled at 13 ~ 25 DEG C；After heeling in, seedling growth greenhouse temperature is controlled at 20 ~ 28 DEG C.
10. tobacco floating seed rearing method according to claim 1, it is characterised in that described nursery pond includes pond body body
（1）, separate mesh（2）, raising surfing pump（3）, support frame（4）, conductivity detector（5）, controller, described separate mesh（2）Set
In pond body body（1）In, and separate mesh（2）For enclosed construction, described raising surfing pump（3）It is respectively arranged at pond body body（1）In
Corner, described support frame（4）It is located at pond body body（1）Top, described conductivity detector（5）It is arranged at support
Frame（4）On, and conductivity detector（5）Test side stretch to pond body body（1）Below liquid level, described controller and conductance
Rate detector（5）Electrical connection.
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