CN110050652A - A kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout is at blanket method - Google Patents
A kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout is at blanket method Download PDFInfo
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- CN110050652A CN110050652A CN201910309022.9A CN201910309022A CN110050652A CN 110050652 A CN110050652 A CN 110050652A CN 201910309022 A CN201910309022 A CN 201910309022A CN 110050652 A CN110050652 A CN 110050652A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
Abstract
The invention belongs to method of raising seedling field, a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout is disclosed into blanket method.The present invention grasps hybrid paddy rice appropriateness Low seeding rate, optimization seedling quality improves the theory of per unit area yield, the integrated accurate drilling technology of application improves the thinking that the dark seedling growing technology of seeding uniformity, disc stack promotees bud and drought educates chemical control technique control seedling optimization seedling quality, it is proposed the blanket seedling method of raising seedling for being suitble to hybrid paddy rice mechanization precisely to plant, regulate and control two stages, specially selected hybrid rice seed including precise sowing and seedling quality；It is excellent to match Nutrition Soil；Low seeding rate precision drilling；The dark seedling growing technology of disc stack promotees bud；Drought educates chemical control technique control seedling.The present invention uses the drilling of Low seeding rate precision, effectively increases seeding uniformity, reduces the leakage when machine transplanting of rice and inserts rate and damaged seedling rate；It is secretly emerged using disc stack and drought educates chemical control technique, realize that Low seeding rate at blanket, extends seedling age elasticity, improves seedling quality, cultivate high, good at blanket, the suitable mechanical blanket stalwartness rice shoot precisely planted of seedling quality.
Description
Technical field
The invention belongs to method of raising seedling field, in particular to a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout is at blanket side
Method.
Background technique
30,000,000 hectares of the long-term cultivated area of China's rice realizes that Rice Production entire mechanization is comprehensive to China's grain is improved
It closes production capacity, ensure that national food security is of great significance.To the end of the year 2016, China's rice cultivation receives comprehensive mechanization water
Putting down is 78.99%, and for tractor-ploughing level up to 98.79%, planting with machinery level is only 44.45%, and mechanical harvest level is up to 87.11%.
Planting mechanization is still the developing weak link of China's rice planting mechanization, and tracing it to its cause is that existing rice mechanization is educated
Rice transplanting technology be by conventional japonica rice plant based on grow up, be not suitable with hybrid paddy rice mechanization production.
Cross-incompatibility groups emphasize this few thin planting, increase yield by powerful tiller, so its seedling-cultivation technique needs
Using the precise sowing technology of Low seeding rate.Generally 2-3 plants/cave (1-2 plants/cave when planting), by improving seeding uniformity, subtract
Few seed dosage, meets the planting requirement that hybrid paddy rice lacks this thin planting, and cost-saving synergistic improves yield.But reduce application rate seedling meeting
There is the problems such as miss in seedling setting rate height and rice shoot poor at blanket.Domestic and international existing seedling planting technology is suitable for the conventional Rice amount of broadcasting greatly and educates
Seedling, but it is not able to satisfy the application requirement of hybrid paddy rice.Currently, due to not can be well solved hybrid paddy rice precise sowing seedling problem,
Hybrid paddy rice plantation mainly is inserted as leading with Planting.For this purpose, needing to carry out the exploration of hybrid paddy rice precise sowing seedling-cultivation technique, seek to be suitble to
The method of hybrid paddy rice precise sowing seedling, this development to China's rice mechanization, the especially hair of hybrid paddy rice planting mechanization
Exhibition, which has, promotes practical value.
Summary of the invention
In order to overcome deficiency present in existing technology, for the key problem of hybrid paddy rice mechanized cultivation technology, originally
The primary and foremost purpose of invention is to provide a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout into blanket method.This method grasps hybridization
Rice appropriateness Low seeding rate optimizes the theory of seedling quality raising per unit area yield, integrates the accurate drilling technology of application and improves seeding uniformity, folds
The dark seedling growing technology of disk promotees bud, drought educates the thinking that chemical control technique control seedling etc. optimizes seedling quality, proposes to be suitble to hybrid paddy rice mechanization essence
The blanket seedling method of raising seedling that standard is planted, including precise sowing and seedling quality regulate and control two stages.
The purpose of the invention is achieved by the following technical solution:
At blanket method, this method includes precise sowing and seedling quality for a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout
Regulate and control two stages, the precise sowing includes selected hybrid rice seed, excellent with Nutrition Soil and Low seeding rate precision drilling, the seedling
The regulation of seedling quality includes that the dark seedling growing technology rush bud of disc stack and drought educate chemical control technique control seedling.
The selected hybrid rice seed refers to that selection adapts to the good quality and high output kind of local mechanized cultivation, is being suitable for sowing
Phase carries out seed selection, basks seeds, soak seed disinfection and vernalization pretreatment, to improve potentiality of seed and germination percentage.
The excellent Nutrition Soil of matching refers to the garbled mountain soil of selection and seedling raising ground substance, and the ratio of 1:2 in mass ratio mixes,
By hack, sieve soil, acid, disinfection, clay fertilizer stirring is adjusted to be made into Nutrition Soil.
The Low seeding rate precision drilling refers to that seed, in linear ordered arrangement, is broadcast in seedling disk using 50-70g/ disk is low
Amount, matches drilling line number with rice transplanter transverse direction seedling taking number, realizes precisely planting for hybrid paddy rice 1-3 plants/cave.
Low seeding rate precision drilling, relative to the unordered seeding method broadcasted sowing, seeding uniformity is improved, drilling line number and rice transplanting
Machine transverse direction seedling taking number coupling matching can expand lateral growth distance between seedling column under identical thickness of sowing, it is lateral to reduce seedling claw
Quality is planted in damage of the seedling taking error to rice shoot axial root system, raising.Low seeding rate sowing, can ensure that seed has good growing space
And nutrient environment, to strengthen the cultivation of seedling；In the case where existing machinery plants technology, seedling taking amount can be met and simply adjust requirement, realized
Precisely planting for 1-3 plants/cave of hybrid paddy rice, reduces plant injury.The accurate drilling, being able to achieve seed has in seedling disk in linear
Sequence arrangement, matches drilling line number with rice transplanter transverse direction seedling taking number, to adapt to rice transplanter fixed lateral seedling taking amount growing method
Basis is provided；Under identical thickness of sowing, lateral growth distance between seedling column can be expanded, seedling claw seedling taking is reduced and fluctuate bring rice shoot
Damage.
With a thickness of 20~23mm, earthing amount is controlled with a thickness of 7~10mm for subsoil amount control in the seedling disk.
The dark seedling growing technology of disc stack is to stack seedling-cultivation plate, and covered with black non-woven fabrics, controls temperature 30~32
DEG C environment.The dark seedling growing technology of disc stack can provide good temperature and humidity growing environment for seed, improve percentage of seedgermination and
Emergence uniformity consistency enhances just bud growth vigor, can omit vernalization link, constant-temperature moisture-keeping seedling emergence is carried out in darkroom,
Seedling efficiency is improved, the stability of rice paddy seed budding is ensured, improves the percentage establishment of seedling of seed；Be conducive to Mechanization sowing, reduce
Mechanical damage；The disc stack quantity of the seedling-cultivation plate preferably often folds high 5~10 disk.
It is that stress technology is educated using drought that the drought, which educates chemical control technique control seedling, promotes root growth, improves rice shoot packing, with
And using chemical agent regulation rice shoot overground part growth, extends seedling age elasticity, promote rice shoot tiller, cultivate and be suitble to the local machine transplanting of rice
Healthy and strong rice shoot；Chemical control technique application growth adjust adjust plant growth and development, make its towards it is envisaged that direction occur
Variation, it is ensured that the technology of good quality and high output；Using the quantitative target of the controllable seedling quality of chemical control technique, cultivate into short strong suitable machine
Slotting healthy and strong rice shoot；The drought educates technology, i.e., carries out drought hardening to rice shoot during seedling, and control rice shoot overground part is grown,
Promote to prick under root system, accumulates the technology of nutriment；Technology is educated using drought, when appropriate drought educates stress, promotes root system raw
It is long, increase rice shoot under Low seeding rate at blanket, be conducive to dissolve application rate and at the contradiction between blanket.
Hybrid paddy rice Low seeding rate precision drilling seedling strong sprout of the present invention elaborates that hybrid paddy rice is suitble to transplanted by machine at blanket method
Strong seedling standard, as the quantitative target for examining seedling quality, the strong seedling standard, strong seedling needs leaf to endure Miao Jian, dark green leaf color, base
Stem is wider, and has tiller, and strong seedling root amount is big, and root thickness are strong, Bai Genduo.The method of the present invention solves mechanic rice transplanting applied to miscellaneous
When handing over rice, application rate is big, seedling quality is poor, seedling age elasticity is small, the problem more than the high and every cave rice shoot quantity of machine transplanting of rice damaged seedling rate, is miscellaneous
Mechanical precisely plant of rice is handed over to provide suitable method of raising seedling.Relatively other breeding methods, the present invention use the drilling of Low seeding rate precision,
Seeding uniformity is effectively increased, the leakage when machine transplanting of rice is reduced and inserts rate and damaged seedling rate；It is secretly emerged using disc stack and drought educates chemical control technique,
Realize that Low seeding rate at blanket, extends seedling age elasticity, improves seedling quality.It is high, good, suitable at blanket that the present invention can cultivate seedling quality
Close the mechanical blanket stalwartness rice shoot precisely planted.
The present invention compared with the existing technology, have the following advantages and the utility model has the advantages that
(1) it is sowed using Low seeding rate, ensures that hybrid rice seed has good growing space and nutrient environment, to strengthen seedling
It cultivates；In the case where existing machinery plants technology, seedling taking amount can be met and simply adjust requirement, realize the accurate cultivation in hybrid paddy rice 1-3 plants/cave
It inserts, reduces plant injury；Reduce the waste of hybrid rice seed, reduce production cost, achievees the purpose that precisely to save kind.
(2) using accurate drilling, seed is able to achieve in seedling disk in linear ordered arrangement, makes drilling line number and rice transplanter
Lateral seedling taking number matching provides basis to adapt to rice transplanter fixed lateral seedling taking amount growing method；Accurate drilling can expand seedling
Lateral growth distance between column reduces seedling claw seedling taking fluctuation bring rice shoot damage.
(3) chemical control technique regulation seedling quality is educated using the dark seedling growing technology of disc stack and drought, cultivates emergence rate height, uniformity
Good, seedling quality height, the healthy and strong rice shoot that is suitble to machinery precisely plant good at blanket.
Detailed description of the invention
Fig. 1 is the technology of the present invention route map.
Fig. 2 is hybrid paddy rice Low seeding rate precision drilling effect diagram in blanket seedling disk.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.
Embodiment 1:
At blanket method, this method includes precise sowing and seedling quality for a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout
Regulate and control two stages, comprising the following steps: the precise sowing include selected hybrid rice seed, it is excellent with Nutrition Soil and Low seeding rate essence
Dense sowing in line, the seedling quality regulation include that the dark seedling growing technology rush bud of disc stack and drought educate chemical control technique control seedling；Specifically according to following
Step:
(1) high yield for being suitble to local mechanization production, high-quality, highly resistance kind selected hybrid rice seed: are selected.Ensure seed
Quality reaches national standard above grade 2,98% or more purity, 95% or more germination percentage；It basks seeds before seed selection 2-3 days, to improve seed
Germination percentage and emergence rate, seed rice is selected by machinery, goes awns and branch to obstruct, reduces quality difference between seed, sprouts seed whole
Together, seedling is healthy and strong；In order to avoid seed-borne fungi to field infestation and (rice blast, bakanae disease etc.) is propagated, to be disappeared after seed selection
Poison, to eliminate the germ for being attached to the surface of the seed or hiding between rice husk and kind skin；Sufficiently to suction the kind of moisture after soaking seed
Son germination is uniformly neat, is desirable to thermophilic vernalization.The rice seed germination accelerating machine of available dedicated, seed reaches rigid before reaching sowing
" broken chest shows money or valuables one carries unintentionally ", 95% or more germination percentage, bud is long to be no more than 1mm.Preferably, according to breediness and safe full heading date, China
The wider hybrid rice seed of the application such as the miscellaneous Tai Feng of training, Guodao 1, Tianyou998, Guangdong two excellent 805 area may be selected in southern double rice cropping system.
(2) excellent Nutrition Soil of matching: Nutrition Soil should select the soil that organic matter is high, the soil is porous, permeability is good to do bed soil for raising seedlings.
In order to Nutrition Soil apolegamy is economical, conveniently, it is sustainable, it is preferable that mixed and matched using the ratio column of mountain soil and matrix 1:2 in mass ratio
At seedling Nutrition Soil；Nutritive soil preparation includes hack, sieve soil, adjusts the processes such as acid, disinfection, clay fertilizer stirring.
(3) Low seeding rate precision drilling: broadcasting sowing seeding method relative to unordered, using 50-70g/ disk Low seeding rate, ensures seed
There are good growing space and nutrient environment, to strengthen the cultivation of seedling；In the case where existing machinery plants technology, seedling taking amount letter can be met
It easily adjusts and requires, realize precisely planting for hybrid paddy rice 1-3 plants/cave, reduce plant injury.Using accurate drilling, seed is able to achieve in seedling
It is in linear ordered arrangement in disk, matches drilling line number with rice transplanter transverse direction seedling taking number, to adapt to rice transplanter fixed lateral
Seedling taking amount growing method provides basis；Accurate drilling can expand lateral growth distance between seedling column, reduce seedling claw seedling taking wave zone
The rice shoot damage come.When for seeding operation, seed can be in linear ordered arrangement in seedling disk, as shown in Figure 2.Preferably,
Appropriateness, Low seeding rate, accurate drilling operation are carried out using vibration precision seed metering device；Answer solid smooth in seeder installation ground.Such as
Ground moisture is excessive to want cushioning flitch or the wooden wooden fork, prevents rack from sinking.When seeder is installed, the upper plane of front and back rack and inside
Face wants each self-aligned and holding is horizontal, and seeder frame overall length does not answer gradient and bending, and subsoil amount is adjusted before broadcasting, adjusts spray
Water adjusts application rate, adjusts earthing amount.When sowing, preferred 50-70g/ disk Low seeding rate, blinding thickness, water drenching amount size.It adjusts
Section subsoil amount: strict control inserts the subsoil amount to add to seedling tray, and subsoil thickness is generally 20~23mm.Subsoil is blocked up excessively thin to be all unfavorable for
Cultivate strong seedling.Adjust amount of water sprayed: by spray boom valve regulated amount of water sprayed, water spray with reach try to get to the heart of a matter no dry ground, disk under do not drip for
Preferably.It adjusts earthing amount: adjusting the size of earthing case soil-discharging port, keep earthing uniform, with a thickness of 7~10mm.
(4) the dark seedling growing technology of disc stack promotees bud: disc stack quantity generally often folds high 5~10 disk.Disc stack is neatly placed in controllably
In the greenhouse of temperature, covered with the good black non-woven fabrics of permeability；In the environment of temperature is 30~32 DEG C, after about 2 days
It can be formed " vertical needle (seedling) ", the seedling disk after vertical needle directly moves into seedling bed seedling.Seedling efficiency is improved, ensures rice paddy seed budding
Uniformity consistency, improve the percentage establishment of seedling of seed.
(5) educating of drought control control seedling: chemical control technique is that application grows the growth and development adjusted and adjust plant, makes it towards people
The direction envisioned change, determine good technology.To prevent rice shoot prosperous growth, control rice shoot height is no more than 20cm with suitable
It should plant, the 2 seedling disks of leaf phase every hundred can spray water with 15% paclobutrazol pulvis 6g, want uniform, careful by spraying.If used
Seedling leaf is larger or planting phase delay because of machine causes the length of time rice seedlings grow longer, is required to suitably increase dosage.During drought educates technology i.e. seedling
Drought hardening is carried out to rice shoot, control rice shoot overground part growth promotes to prick under root system, accumulates the technology of nutriment.Seeding stage
Keep soil moisture content 80% or more, other periods control moisture, keep wet.It is poured at dusk when leaf roll occurs in noon rice shoot
Water, to irrigate surface soil as degree.Rainy weather is met, wet down is drained in time, guarantees that rain stops Tian Gan, in order to avoid rice shoot alters high prosperous growth, lose
The advantage of dry rice seedling.Technology is educated using drought, the appropriate water shortage the case where, promotes the growth of root, increases rice shoot under the amount of broadcasting of bottom
At blanket, be conducive to dissolve application rate and at the contradiction between blanket.
By above step, the distributing homogeneity of seed is improved, rate and damaged seedling rate are inserted in the leakage for reducing the machine transplanting of rice；The seedling cultivated
Seedling quality is good, and emergence rate is high, and good at blanket, the suitable mechanical healthy and strong rice shoot precisely planted plays the volume increase of hybrid paddy rice transplanting
Potentiality.
Embodiment 2:
Hybrid paddy rice has been carried out using the method for the present invention in different Low seeding rate conditions in Zhaoqing Guangdong city within the present inventor 2016
It is lower at blanket comparative test.The 2SJB-500 seedling-cultivation plate of rice precise sowing flowing water that seedling cultivation machine uses Agricultural University Of South China to develop
Line carry out seedling operation, respectively Zhaoqing and Jiangmen carried out early rice (Low seeding rate of five excellent 308) and late rice (safe Feng You 55) at
Blanket seedling research.Table 1 is Zhaoqing seedling experimental performance statistical result.
The seedling block disk knot power of 1 Different Raising Seedling mode of table and application rate compares
| Disk knot power (kg) | The common seedling in the field A1 | This method seedling of the field A2 | A3 greenhouse this method seedling | Average value |
| B1 (45g/ disk) | 3.80 | 4.15 | 4.20 | 4.05 |
| B2 (55g/ disk) | 4.10 | 4.80 | 4.80 | 4.57 |
| B3 (65g/ disk) | 5.40 | 6.00 | 5.60 | 5.67 |
| Average value | 4.43 | 4.98 | 4.87 |
In table 1 it can be seen that under Different Raising Seedling mode, with the increase of application rate, seedling block disk knot power is gradually increased；Three kinds
In seedling raising method, to use this method seedling maximum, average out to 4.98kg in field；Generally, in addition to 45g/ disk field is without fiber crops
(it is less than critical value 4kg) other than the seedling block disk knot power of film blanket plate seedling raising is less than normal, the seedling block disk knot power of other all seedling raising methods
Requirement of the transplanting to packing is all reached.Experiments have shown that using the present invention, can be improved hybrid paddy rice machine transplanting of rice plate seedling raising at
Blanket problem.
2018, the present inventor continued to have carried out using the method for the present invention hybrid paddy rice in Zhaoqing Guangdong and Shantou not of the same race
Implant model yield trials, test seed rice are that hybrid paddy rice Hengfeng is excellent 3512, hybrid paddy rice Thailand Feng You 208, hybrid paddy rice deeply excellent 9516；Table 2
It is 3 kinds of hybrid paddy rice different land use patterns test volume analyses.
23 kinds of hybrid paddy rice different land use patterns of table test yield
Estimate that the sequence of yield and actual measurement yield is almost the same in test；Actual measurement yield arranges from high to low: seedling in earthen bowl machine
Transplanting > 50g/ disk blanket seedling the machine transplanting of rice (1kg-1.2kg/ mus of sowing quantity) ≈ seedling in earthen bowl hand inserts the > 60g/ disk blanket seedling machine transplanting of rice > 70g/ disk
The blanket seedling machine transplanting of rice > 90g/ disk blanket seedling the machine transplanting of rice (1.8kg-2.2kg/ mus of sowing quantity).
In the blanket seedling machine transplanting of rice, as thickness of sowing increases to 90g/ disk from 50g/ disk, increasing trend is presented in the effective fringe of mu,
Setting percentage has the tendency that successively decreasing；Pot seedling hand is inserted more effective fringe, but spike length and fringe weight compared with the 50g/ disk blanket seedling machine transplanting of rice
It is relatively fewer, setting percentage is relatively low.
Preliminary conclusion: using 50 grams/disk Low seeding rate precision drilling seedling strong sprout at blanket, high-quality healthy and strong seedling can be cultivated
Seedling meets rice transplanter requirement at blanket, continuous 2 years experiments have shown that, yield is above seedling in earthen bowl rice transplantation by hand or quite, and
Sowing quantity and it is artificial quite.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout is at blanket method, it is characterised in that: this method includes precise sowing
Regulate and control two stages with seedling quality, the precise sowing includes selected hybrid rice seed, excellent accurate with Nutrition Soil and Low seeding rate
Drilling, the seedling quality regulation include that the dark seedling growing technology rush bud of disc stack and drought educate chemical control technique control seedling.
2. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout according to claim 1 is at blanket method, it is characterised in that:
The selected hybrid rice seed refers to that the good quality and high output kind of the local mechanized cultivation of selection adaptation is carried out in Suitable Sowing Period
It chooses seeds, bask seeds, soak seed disinfection and vernalization pretreatment.
3. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout according to claim 1 is at blanket method, it is characterised in that:
The excellent Nutrition Soil of matching refers to the garbled mountain soil of selection and seedling raising ground substance, and the ratio of 1:2 in mass ratio mixes, and process is broken
Soil, sieve soil adjust acid, disinfection, clay fertilizer stirring to be made into Nutrition Soil.
4. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout according to claim 1 is at blanket method, it is characterised in that:
The Low seeding rate precision drilling refers to that seed makes drilling using 50-70g/ disk Low seeding rate in linear ordered arrangement in seedling disk
Line number is matched with rice transplanter transverse direction seedling taking number, realizes precisely planting for hybrid paddy rice 1-3 plants/cave.
5. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout according to claim 4 is at blanket method, it is characterised in that:
With a thickness of 20~23mm, earthing amount is controlled with a thickness of 7~10mm for subsoil amount control in the seedling disk.
6. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout according to claim 1 is at blanket method, it is characterised in that:
The dark seedling growing technology of disc stack is to stack seedling-cultivation plate, and covered with black non-woven fabrics, controls environment of the temperature at 30~32 DEG C.
7. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout according to claim 6 is at blanket method, it is characterised in that:
The disc stack quantity of the seedling-cultivation plate is often to fold high 5~10 disk.
8. a kind of hybrid paddy rice Low seeding rate precision drilling seedling strong sprout according to claim 1 is at blanket method, it is characterised in that:
It is that stress technology is educated using drought that the drought, which educates chemical control technique control seedling, promotes root growth, improves rice shoot packing, and useization
The growth of agent modulates rice shoot overground part is learned, seedling age elasticity is extended, promotes rice shoot tiller, cultivates the healthy and strong seedling for being suitble to the local machine transplanting of rice
Seedling.
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| CN111837845A (en) * | 2020-08-04 | 2020-10-30 | 中国水稻研究所 | Method for improving uniformity of rice mechanical transplanting group |
| CN112535078A (en) * | 2020-11-17 | 2021-03-23 | 淮阴师范学院 | Cultivation method of conventional japonica rice blanket-shaped machine-transplanted tillering large seedlings |
| 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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