CN103283349B - A kind of disc type drilling method for culturing seedlings - Google Patents
A kind of disc type drilling method for culturing seedlings Download PDFInfo
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Abstract
The invention discloses a kind of disc type drilling method for culturing seedlings, sowing bar number scope is 13～15, and the amount of broadcasting is often dish bud kind 70g～75g.The present invention uses drilling seedling raising manners to be conducive to improving Seedling Quality in Rice and realizing machine rice transplantation.After drilling rice shoot moves into Honda, Rice Population Biomass increases, and number of productive ear increases, and rice yield improves.
Description
Technical field
The invention belongs to agricultural technology field, relate to a kind of disc type drilling method for culturing seedlings, particularly relate to a kind of for Oryza sativa L.
Disc type drilling method for culturing seedlings.
Background technology
China's machine-transplanted rice seedling raising is in disc type seedling growing mode.In order to reduce the miss in seedling setting rate during the machine transplanting of rice, nursery is used
The amount of kind the most excessively increases, and causes rice seedling population density excessive, and seedling quality is low, has had a strong impact on rice yield and product
Matter.Having photosynthetic capacity strong sprout strong, the features such as Dry Matter Production accumulation is many, and rooting ability is strong, strong stress resistance, are the bases of rice high yield
Plinth.Fall Low seeding rate is the important means cultivating Oryza sativa L. strong sprout, but the Oryza sativa L. amount of broadcasting can cause seedling density to reduce after declining, and causes
During paddy machinery is transplanted, hole rate increases, and needs to fill the gaps with seedlings, and result is time-consuming, laborious, delays farming season, and production cost increases, and leads
Cause Rice Production decline in benefits.Sowing of broadcasting sowing based on floppy disk is current topmost seeding method, but educates broadcasting sowing
Under Seedling mode, seed is distributed disorderly and unsystematic in dish, and rice shoot ventilation and penetrating light condition is poor.And bar broadcast mode air permeability is good, daylighting is closed
Reason, provides good growing environment, the beneficially growth of rice seedling for seedling.Drilling nursery is by broadcasting that change tradition is broadcasted sowing
The method of kind is orderly bar shaped seeding method, can ensure applicable machine rice transplantation, and on the premise of not increasing scarce cave rate, reduction is broadcast
Amount, reaches healthy and strong rice shoot, increases yield, the purpose of improving quality.
Mechanization is the important step realizing agricultural modernization, and in rice makees evolution, novel planting type can not
Deviate from the road for development of mechanization.Rice in China type and planting system are various, owing to mechanized planting can solve Rice Production
Season and the problem of kind period of duration, lodging resistance is good, wide adaptability, it has also become the main side of contemporary Chinese rice technology development
To.The reduction of the amount of broadcasting is primarily to solve to cultivate Oryza sativa L. problem in strong sprout, and bar shaped sowing is primarily to solve Low seeding rate condition
Under machine rice transplantation problem.Under drilling seedling raising manners, within the while that the amount of broadcasting reducing, seed rice all uniform concentrations are distributed in each,
In bar, the increase of seed rice density improves machine rice transplantation and grabs seedling effect, reduces hole rate.Compared with broadcasting sowing, drilling seed distribution ratio
More uniform, rice shoot becomes blanket effective, and seedling quality is good, it is possible to realizes fall Low seeding rate nurturing staff and ensures that being suitable for machinery inserts simultaneously
Seedling.Particularly in hybrid paddy rice district, south, it is ensured that realize machine rice transplantation under existing about the 70g amount of broadcasting level, beyond doubt to propelling
South rice planting mechanization plays facilitation.It is therefore desirable to the seeding machinery that exploitation matches with drilling nursery, and insert
Seedling mechanical aspects then can realize by existing rice transplanter carries out repacking.Simultaneously maximum in order to realize unit seedling dish rice transplanting face
Long-pending, suitable sowing bar number should be selected while ensureing drilling nurturing staff and less grab seedling distance.
Forefathers' research focuses mostly on affects aspect in fall Low seeding rate to seedling quality and yield and quality of rice, and for how
Improve rice seedling growth microenvironment, allow it be more beneficial for the growth promoter of rice seedling；How Low seeding rate drops, and cost-effective,
The most do not increase scarce cave rate problem aspect report less.
Summary of the invention
It is an object of the invention to the defect overcoming above-mentioned technology to exist, it is provided that a kind of disc type drilling method for culturing seedlings, this
Bright it is provided with 3 sowing bar numbers, 5 application rates in 2008, have studied different sowing bar number and application rate to rice seedling element
The impact of matter；Within 2009 and 2010, further study often 14, dish, the 70g amount of broadcasting drilling nursery to Rice Growing and yield
The impact of shape, and the Primary Study mechanization problem of drilling seedling raising manners, to for Oryza sativa L. disc type drilling seedling cultivation
Theoretical foundation is provided.
Its concrete technical scheme is:
A kind of disc type drilling method for culturing seedlings, carries out sowing or use corresponding sowing by being capable of the machine of bar shaped sowing
The frame structure of bar number, is positioned over frame structure after finishing seedling dish and has spread on the seedling dish of subsoil, by manually or electrically
Planting with sowing machine, installs seeder and track on seedbed before operation, by the good operation of working width or seedbed length adjustment
Stroke, trail run normally can carry out studying industry, by will the amount of broadcasting be adjusted to needed for the amount of broadcasting level, pilot with blank panel in orbit,
In triplicate, when the dish amount of broadcasting reaches requirement can on seedbed formal seeding operation, select the suitable speed of service, come and go one
Completing one-stop operation back and forth, described seeder has function of covering soil simultaneously, determines thickness of earth covering according to said method, reaches requirement
After can carry out operation, sowing bar number scope is 13～15, and the amount of broadcasting is often dish bud kind 70g～75g.
During every cave rice transplanting 3 strain, selecting mechanical gripping seedling distance is 12mm, often 15, dish, the seeding method of about 75g bud kind.
Every cave rice transplanting 4 strain, selecting mechanical gripping seedling distance is 14mm, often 13, dish, the seeding method of about 74.3g bud kind.
Every cave rice transplanting 5 strain, selecting mechanical gripping seedling distance is 18mm, often 13, dish, the seeding method of about 72.3g bud kind.
Compared with prior art, the invention have the benefit that
The present invention uses drilling seedling raising manners to be conducive to improving Seedling Quality in Rice and realizing machine rice transplantation.Drilling rice shoot moves
After entering Honda, Rice Population Biomass increases, and number of productive ear increases, and rice yield improves.
Accompanying drawing explanation
Fig. 1 is the Plant Height of Rice Dynamic Graph under different disposal；
Fig. 2 is the rice stem tiller Dynamic Graph under different disposal.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described in more detail
Materials and methods
Material and experimental field situation
Experimental cultivar is Heilongjiang Province's main cultivation 11 leaf kind no loadtransformer.Within 2008, seedling growth test is in land reclamation and cultivation section of Heilongjiang Province
Greenhouse, institute's rice research institute north of the Changjiang River is carried out.2009 and plot experiment in 2010 are respectively in Heilongjiang Academy of Land Reclamation Sciences Oryza sativa L.
Trial zone, the institute north of the Changjiang River and Jia Nan test garden are carried out.Trial zone, north of the Changjiang River soil is rice soil, arable layer PH 6.2, containing organic
Matter 2.473%, available nitrogen 173.57mg kg-1, rapid available phosphorus 22.99mg kg-1, available potassium 79.42mg kg-1；Jia Nan trial zone
Soil is chernozem, arable layer PH 6.3, containing organic matter 3.830%, available nitrogen 190.50mg kg-1, rapid available phosphorus 23.72mg
kg-1, available potassium 195.71mg kg-1。
EXPERIMENTAL DESIGN
Use hard disk method for culturing seedlings, hard disk specification 580mm × 280mm.Within 2008, set the sowing bar number × amount of broadcasting level 2 factor
Test, for studying the drilling nursery impact on Seedling Quality in Rice.Test set 3 sowing bar number levels (each seedling dish 11,
13,15, be designated as T1, T2, T3), 5 amount of broadcasting levels (often dish broadcast bud kind 65,70,75,80,85g, be designated as B1, B2, B3, B4,
B5), totally 15 process, completely random is put, and is repeated 3 times.April 10 soaked seed, and April 18 used artificial seeding, and May 19 surveyed
Determine indices.Seedling stage, the fertile liquid application developed by Heilongjiang Province land reclamation and cultivation Oryza sativa L. strengthened seedling agent, prior to seeding with the rice shoot 1.5 leaf phase
Apply base manure respectively and topdress.Water management in seedling stage and other cultivation step are educated strong seedling cultivation technique by drought and are performed.
Within 2009,2010, carry out plot experiment, if 3 process: often 14, dish, the 70g amount of broadcasting drilling nursery process and (are designated as
T), often dish 70g broadcasts sowing process (being designated as TS), broadcasts sowing with routine often dish 115g and is processed as compareing (being designated as CK), randomized block design,
It is repeated 3 times, for studying drilling nursery to Rice Growing and the impact of yield traits.Within 2 years, fertilizer design is identical, wherein urinates
Element 250kg hm-2(N, 46.0%), Application Ratio is base manure: fetilizer for tillering: regulation fertilizer: ear manuer=4: 3: 2: 1, applies base when whole ground
Fertilizer, remaining carbamide applies in Oryza sativa L. 4 leaf phase, 8 leaf phases, 10 leaf phases respectively；Diamidogen 100kg hm-2(containing P2O546%, N 18%),
All apply as base manure；Potassium sulfate 100kg hm-2(containing K2O 60%), base manure applies 40%, and ear manuer applies remaining 60%.Adopt
With rice transplantation by hand, every cave 4 strain, row cave is away from 30cm × 12cm, plot area 300cm × 800cm.In addition to seedling raising manners difference, its
Its field management operates the most routinely and carries out.
Mensuration project and method
When seedling quality is analyzed, each process randomly selects 100 strain rice shoots, takes 10 strains for carrying out plant height, leaf age, radical
Analyzing with SPAD value, the SPAD-502 that wherein the SPAD value of rice shoot produces with Japan measures, and measurement site is the 3rd leaf central part.
The CI-203CA type leaf area instrument produced with CID company of the U.S. measures the leaf area of 50 strain rice shoot the 3rd leaves, then regulates leaf area
Measure after screw on instrument driven pulley that 20 strain rice shoot stem foots are thick, the first sheath is high.Finally all 100 strain rice shoots are divided into two parts respectively
50 strains, are decomposed into root, two parts of hat, in an oven with 105 DEG C of 15min that complete, then dry to constant weight at 75 DEG C, be used for measuring
Hat dry weight and root dry weight.Within 2010, plot experiment measures Plant Height of Rice, tiller every the regular period.In harvest time, each community
Select the 3 representational Oryza sativa L. in cave for indoor species test, measure number of productive ear, grain number per spike, setting percentage, mass of 1000 kernel.Theoretical yield
Calculated by species test data.Data analysis
Data compilation and statistical analysis is carried out with Microsoft Excel 2007 and SPSS 15.0.
Seedling Quality in Rice is affected by table 1 drilling nursery
Table 1 Effects of drilling seedling on seedling quality of rice
Hat dry weight and root dry weight are 50 strain Oryza sativa L. gross dry weights.Data heel same letter represents that difference does not shows on 0.05
Write.Lower same.
Seedling quality variance analysis statistical probability value (P value) between table 2 different sowing bar number and application rate process
Table 2 ANOVA P-value for number of seedling quality under different
drilling number and seeding rate treatments
The drilling nursery impact on Seedling Quality in Rice
By table 1, table 2 it can be seen that under different sowing bar number, rice seedling difference in plant height reaches significant level, broadcasts identical
Increase sowing bar number rice seedling plant height under the conditions of amount and have reduction trend, show as T3 process plant height and be substantially less than T1, T2 process,
And difference is the most notable between T1, T2 process.Different sowing bar numbers are to rice seedling radical, hat dry weight, root dry weight, root/shoot ratio, weight
Height when seedling vigorous index all has an impact.Though difference does not reaches significant level between radical, but root dry weight and root/shoot ratio all have with sowing
Bar number increases and increases trend, and between process, difference reaches significant level, shows that T2, T3 process Oryza sativa L. and process well developed root system than T1,
It is more conducive to turn green after rice shoot becomes blanket and transplants.Compare with T1 process, T2, T3 process root dry weight increase by 15.79% respectively,
23.68%, root/shoot ratio increases by 13.51%, 21.62%.Between rice seedling hat dry weight, weight height ratio, seedling vigorous index process, difference is not
Reach significant level, but show as increasing with sowing bar number and increasing trend.Comparing with T1 process, T2, T3 process hat dry weight respectively
Increasing by 2.97%, 4.95%, weight height increases by 0.84%, 1.69% than increase by 1.51%, 9.85%, seedling vigorous index.Different sowings
Bar number is notable on leaf area impact, compares with T1 process, and T2, T3 process increases by 5.85%, 3.56% respectively.Different sowing bar numbers
Process rice seedling stem is thick, the first sheath High Defferential is notable, shows as increasing with sowing bar number and reducing trend.Ratio is processed with T1
Relatively, T2, T3 process rice seedling stem rough segmentation and do not reduce 0.02cm, 0.03cm, the first sheath height reduces by 9.12% respectively,
15.79%.Different sowing bar numbers do not reach significant level to the impact of SPAD value.
Under different seeding quantity level, B2, B3 process rice seedling plant height, the first sheath height is substantially less than at B1, B4, B5
Reason.The rice seedling Leaf ageeourse of the high amount of broadcasting is slack-off, and the often dish≤75g amount of broadcasting that shows as processes and is significantly faster than the process of the high amount of broadcasting, and
Between B1, B2, B3 process, difference is the most notable.Broadcast in weight range at often dish 65g～85g, the radical of rice seedling, hat dry weight, SPAD
Value, weight height when seedling vigorous index have reduction trend with the amount of broadcasting increase, and radical, hat dry weight, poor between SPAD value and seedling vigorous index
Different reach significant level, wherein the amount of broadcasting≤75g process indices process with the higher amount of broadcasting compared with all has some superiority.The difference amount of broadcasting
Process is thick on rice seedling stem, the impact of root dry weight, root/shoot ratio does not reaches significant level.
The drilling nursery impact on Honda Rice Growing
Plant height is dynamic
As seen from Figure 1, Different sowing ways nursery is substantially similar to Honda Plant Height of Rice effect tendency.Plant height is with life
The process of educating is gradually increased, and reaches maximum to July 27.In addition to harvest time, the Plant Height of Rice of drilling nursery is all remarkably higher than conventional every
The dish 115g amount of broadcasting process, and often dish 70g broadcast sowing process with routine often dish 115g process between difference inconspicuous.Harvest time, often dish
Article 14, the drilling of the 70g amount of broadcasting processes than and broadcasts sowing with the amount of broadcasting and processes and often dish 115g broadcasts sowing the Plant Height of Rice of process and increases the most respectively
2.06%, 3.79%.
Tiller characteristics
As seen from Figure 2, Different sowing ways nursery is basically identical on the impact of rice stem tiller growth and decline state.June 21
To June 28, rice tillering increased rapidly, gathers way afterwards slack-off, and July 12, rice tillering reaches maximum in the time of infertility.
July 12, to ripe, withered away with partial invalidity tiller, and rice tillering reduces.Rice tillering is all with often 14, dish, the 70g amount of broadcasting place
Manage the highest, and the routine often dish 115g amount of broadcasting is broadcasted sowing difference between process and reached significant level, also have substantially with broadcasting sowing process with the amount of broadcasting
Increase trend.The rice tillering of drilling nursery broadcasts sowing mode nursery than conventional 115g respectively at tillering regularity and harvest time to be increased
4.42%, 16.25%, increase by 5.94%, 10.99% than broadcasting sowing mode nursery with the amount of broadcasting.
Impact on rice yield traits
As can be seen from Table 3, under different seedling raising mannerses, rice yield is the most variant, drilling seedling raising manners and routine often dish
The 115g amount of broadcasting broadcasts sowing the rice yield significant difference of seedling raising manners, though not reaching with broadcasting sowing seedling raising manners rice yield difference with the amount of broadcasting
Significant level, but the trend that the rice yield also showing as drilling nursery improves., drilling seedling raising manners Oryza sativa L. in 2010 in 2009
Yield broadcasts sowing mode nursery raising 1.65%, 2.5% than with the amount of broadcasting respectively, improves than routine often dish 115g mode nursery
23.1%, 13.1%.From yield component it can be seen that between the number of productive ear of different disposal difference reach significant level.
2009, drilling seedling raising manners Oryza sativa L. number of productive ear in 2010 improve 5.9%, 5.8% than broadcasting sowing seedling raising manners with the amount of broadcasting respectively,
Broadcast sowing mode nursery than the routine often dish 115g amount of broadcasting and improve 20.0%, 11.0%.Grain number per spike, setting percentage, mass of 1000 kernel were examination in 2 years
Between all showing as during testing processing, difference is not notable, shows that the impact of yield is mainly by effectively by drilling seedling raising manners
The increase of spike number realizes, and this is probably and is caused, by drilling seedling raising manners, the reason that early stage rice tillering utilization rate is high.
Table 3 drilling seedling raising manners is on rice yield and the impact of constituent element thereof
Table 3 Effcet of phosphorus level on grain yield and its components
in rice
Drilling nursery is on rice seedlings matter and the impact of yield
Nurturing staff is the core of seedling cultivation of rice, first link of high-yield culturing.The quality of seedling quality is related to point
Being revival from transplanting after the generation of tiller, transplanting, beneficially Honda colony development, the formation of big fringe and the increase of number of productive ear.Use
Drilling seedling raising manners, has air permeability good, and daylighting is reasonable, and rice seedling growing environment is good, and seedling quality is obviously improved.Often
Under the conditions of the identical amount of broadcasting of dish, sowing bar number is the most, and in bar, seed density is the least, beneficially the raising of seedling quality.But ensureing
After in bar, seed density increases sowing bar number simultaneously, in seedling dish, the competition between the rice shoot individuality of bar and bar certainly will aggravate, and will lead
Cause Seedling Quality in Rice declines.This is likely to be due in rice seedling colony there is competitive relation between individuality, predominantly overground part
To light, the competition of gas, underground part, to mineral nutrition and the competition of moisture, after using bar broadcast mode nursery, is deposited again in rice shoot colony
Competitive relation between individuality in competition and bar between individuality between bar, reacts under the same amount of broadcasting level, often dish sowing bar number is more
Many, in bar, competition is the most weak, competes the strongest between bar；Otherwise, in bar, competition is the strongest, competes the most weak between bar.This result of the test shows, no
Same sowing bar number also can produce material impact to Seedling Quality in Rice.Increase with often dish sowing bar number, the plant height of rice seedling,
First leaf sheath height decreases, and be preced with dry weight, root dry weight, root/shoot ratio increased, had though stem slightly affects by sowing bar number
Reduced, but the important indicator weight height ratio of reaction seedling quality height and seedling vigorous index are shown as sowing with often dish under the identical amount of broadcasting
Bar number increased, and illustrates in drilling seedling raising process, it is determined that often suitably increasing sowing bar number after dish application rate can be water
The rice seedling phase creates preferable growing environment, may advantageously facilitate root growth, prevents excessive growth on the ground, it is achieved nurturing staff and machinery are inserted
Seedling.
The amount of broadcasting is the key factor affecting Seedling Quality in Rice.Forefathers' the experimental results shows, fall Low seeding rate is conducive to
The raising of Seedling Quality in Rice.It is primarily due to Low seeding rate and improves the growing environment of rice seedling colony, reduce individuality
Between the result of excessive competition.After the amount of broadcasting increases, less on the impact of rice seedling early growth period, but along with the growth of seedling, having
Between the seedling culture space interior edema rice sprouts individuality of limit aggravating light and other resource contention, excessive competition causes photosynthetic accumulation rapid
Declining, seedling quality is deteriorated.This result of the test shows, often process below dish application rate 75g under drilling seedling raising manners every examines
Examining index and have some superiority, show as plant height suitable, Leaf ageeourse is fast, and root system development is good, and the first leaf sheath the most excessively extends,
Leaf area density is suitable, the highest with the SPAD value that the Nitrogen supplying in rice shoot body and metaboilic level are closely related, and has stronger
Photosynthetic production capacity, accumulation of photosynthate is many.The weight height ratio of overall merit seedling quality height is with seedling vigorous index index the most all
It is better than the high amount of broadcasting to process.This result of the test it is also shown that use the rice shoot that brings out of bar broadcast mode to show as plant height this Tanaka and increase,
Rice tillering increases, and this will assist in raising rice biological amount and the utilization to early stage tiller, it is possible to the fringe of guarantor unit's area
Count and form big fringe, being preferable high yielding culture of rice pattern.
Due to full grains seed rice selected in research process, substantially can guarantee that every seed can germinating to seedling, because of
This is considered as the problem of the aspects such as the bud rate of routine kind, mechanical damage in actual production, suitably increases sowing quantity, to ensure
The rice varieties no loadtransformer seedling level when about the 75g bud kind amount of broadcasting can be reached.
The drilling nursery impact on paddy machinery rice transplanting
Morphological characteristic and the sown scope of Oryza glutinosa determine
The rice seedling cultivated under drill culture mode realizes machine rice transplantation to be needed to reequip existing rice transplanting machinery,
It is therefore desirable to first the machine rice transplantation performance of drilling Seedling is analyzed.Be suitable at present machine rice transplantation seedling raising manners with floppy disk or
Hard disk nursery is main, and standard seedling block specifications is 580mm × 280mm, and drilling nursery uses the bar shaped sowing being parallel to the long limit of seedling dish
Method.Rice transplanter grabs seedling distance by longitudinal gear regulation seedling pin, laterally grabs seedling number of times by horizontal gear regulation seedling pin.Often
Rice transplanting pin width is generally 12mm, and i.e. during drilling nursery, the sown scope of rice paddy seed answers≤12mm.Educate with mass of 1000 kernel 27g kind sky
As a example by 131, every bud kind weight about 0.0345g, in the range of the sown scope of 10mm～12mm, Rice Grain tight monolayers uniformly divides
Can reach Seeding Quantity during cloth is 217.5, maximum application rate when often dish broadcasts 13,14,15 can reach respectively 97.55g,
105.05g, 112.56g, show under the conditions of Low seeding rate, and every interior seed distribution is the most more open.Sowing vertically hung scroll is wide, seedling dish
Middle seed is distributed closer to the state of broadcasting sowing, and drilling seedling raising manners can lose meaning；Seed rice density mistake in the sowing narrow rear bar of vertically hung scroll
Greatly, intensified competition between rice seedling, seedling quality can be caused to decline.Therefore fall Low seeding rate, nurturing staff and guarantee machine are considered
Tool rice transplanting should select 10mm～12mm to be suitable sown scope scope.
Suitable bar number and the selection of the amount of broadcasting
Sprout-tray seedling growth realizes machine rice transplantation and first has to avoid dissipating dish, and drilling seedling growth test shows that application rate and bar number are to Oryza sativa L.
The one-tenth dish of seedling block all produces material impact.In test often dish≤12, the amount of broadcasting ＜ 70g process under the conditions of each test amount of broadcasting all
Show as packing poor, dissipate dish phenomenon serious, it is impossible to machine rice transplantation, and often dish >=13, the amount of broadcasting >=70g bud kind are processed into dish
Preferably, it is suitable for machine rice transplantation.From table 4, it can be seen that as a example by domestic 2ZK-630 rice transplanter, plan ensure every cave rice transplanting 3,
4, in the case of 5 strains, grabbing seedling distance when being adjusted to 12mm, 16mm, 20mm respectively, often dish is broadcast 14,15 and can be realized often dish and broadcast
Kind of amount reaches 70.0, the suitably amount of broadcasting of 75.0g；In the case of plan ensures that every cave inserts 4,5 strains, grab seedling distance be adjusted to 14mm,
During 18mm, often 13 suitably amounts of broadcasting that also can reach 74.3g, 72.3g respectively broadcast by dish, and other application rate is beyond suitable application rate model
Enclose.
The amount of the broadcasting level that when the different plan of table 4 is kept a full stand of seedings several, sowing bar number is corresponding with grabbing seedling distance
Table 4 Sowing rate under different drilling number and mechanical
stress seedling distance
This result of the test shows, every inspection target that often 13 and 15, dish processes has a some superiority, and rice shoot
During transplanting the most smoothly.Consider projects, often dish 13～15 suitable sowings as drilling nursery can be selected
Bar number.And often 11, dish processes owing to stripe pitch is from excessive, during transplanting, show as seedling block be difficult to roll, i.e. allow to reality
Now also easily occur dissipating dish situation after volume Seedling, therefore consider that machine rice transplantation aspect can not use.
Suitably broadcast in weight range under drilling seedling raising manners, first have to ensure every cave rice transplanting strain number, secondly ensure the amount of broadcasting
In the range of suitable sowing quantity, on this basis, ensure the maximum rice transplanting cave number of often dish by minimum seedling distance of grabbing as far as possible.Originally grind
Study carefully result it is also shown that as plan ensures every cave rice transplanting 3 strain, select to grab the seeding method of 15, the often dish that seedling distance is 12mm；Meter
Draw and ensure every cave rice transplanting 4 strain, select to grab the seeding method of 14, the often dish that seedling distance is 14mm；Plan ensures every cave rice transplanting 5 strain,
Select to grab the seeding method of 13, the often dish that seedling distance is 16mm.It is certainly contemplated that seed planting percent is not absolutely, if plan
Keep a full stand of seedings 3 strains/cave time produce lack cave probability strengthen, therefore should according to practical situation, be considered as select planning keep a full stand of seedings every cave 4 strain with
On planting type.
The amount of broadcasting and sowing bar number all produce material impact to Seedling Quality in Rice, use drilling seedling raising manners to be conducive to improving
Seedling Quality in Rice and realize machine rice transplantation.After drilling rice shoot moves into Honda, Rice Population Biomass increases, and number of productive ear increases
Many, rice yield improves.Suitable sowing bar number scope is 13～15, and the suitable amount of broadcasting is often dish bud kind 70g～75g.
When plan ensures every cave 3 strain, selecting mechanical gripping seedling distance is 12mm, often 15, dish, the seeding method of about 75g bud kind；Plan
Ensureing every cave rice transplanting 4 strain, selecting mechanical gripping seedling distance is 14mm, often 13, dish, the seeding method of about 74.3g bud kind；Plan
Ensureing every cave rice transplanting 5 strain, selecting mechanical gripping seedling distance is 18mm, often 13, dish, the seeding method of about 72.3g bud kind.
The above, the only present invention preferably detailed description of the invention, protection scope of the present invention is not limited to this, any ripe
Know those skilled in the art in the technical scope of present disclosure, the letter of the technical scheme that can become apparent to
Altered or equivalence are replaced and are each fallen within protection scope of the present invention.
Claims (1)
1. a disc type drilling method for culturing seedlings, carries out sowing or using sowing bar accordingly by being capable of the machine of bar shaped sowing
The frame structure of number, is positioned over frame structure after finishing seedling dish and has spread on the seedling dish of subsoil, by manually or electrically broadcasting
Planting with sowing machine, installs seeder and track on seedbed before operation, by the good operation row of working width or seedbed length adjustment
Journey, trail run normally can carry out studying industry, by will the amount of broadcasting be adjusted to needed for the amount of broadcasting level, pilot with blank panel in orbit, heavily
Multiple three times, when the dish amount of broadcasting reaches requirement can on seedbed formal seeding operation, select the suitable speed of service, come and go one
Having returned one-stop operation, described seeder has function of covering soil simultaneously, determines thickness of earth covering according to said method, after reaching requirement
Operation can be carried out, it is characterised in that sowing bar number scope is 13～15, and the amount of broadcasting is often dish bud kind 70g～75g；
During every cave rice transplanting 3 strain, selecting mechanical gripping seedling distance is 12mm, often 15, dish, the seeding method of 75g bud kind；
Every cave rice transplanting 4 strain, selecting mechanical gripping seedling distance is 14mm, often 13, dish, the seeding method of 74.3g bud kind；
Every cave rice transplanting 5 strain, selecting mechanical gripping seedling distance is 18mm, often 13, dish, the seeding method of 72.3g bud kind.
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| CN110050652A (en) * | 2019-04-17 | 2019-07-26 | 华南农业大学 | A kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout is at blanket method |
| CN110050651A (en) * | 2019-04-17 | 2019-07-26 | 华南农业大学 | A kind of hybrid paddy rice Low seeding rate precision drilling seedling couples growing method with rice transplanter seedling taking area |
| CN112544377A (en) * | 2020-12-09 | 2021-03-26 | 中国水稻研究所 | Precision seeding method based on blanket formation of rice seedlings transplanted by rice machine |
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| JPH08275683A (en) * | 1995-04-08 | 1996-10-22 | Kyosuke Kato | Rice cultivation which can increase yield without seedling transplantation and infestation of weed |
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