CN109258000A - A kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings - Google Patents

A kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings Download PDF

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Publication number
CN109258000A
CN109258000A CN201811235715.XA CN201811235715A CN109258000A CN 109258000 A CN109258000 A CN 109258000A CN 201811235715 A CN201811235715 A CN 201811235715A CN 109258000 A CN109258000 A CN 109258000A
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vernalization
seed
rice
parts
culturing seedlings
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张保刚
崔娟
宋永玉
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ANHUI ROYEE SEED Co Ltd
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ANHUI ROYEE SEED Co Ltd
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Priority to CN201811235715.XA priority Critical patent/CN109258000A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • 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
    • 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
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
    • 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
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
    • 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
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
    • A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
    • A01N33/18—Nitro compounds
    • A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
    • A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/10—Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
    • A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/08—Alkali metal chlorides; Alkaline earth metal chlorides
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N61/00—Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08—Magnoliopsida [dicotyledons]
    • A01N65/12—Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon

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Abstract

The present invention discloses a kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings, comprising the following steps: S1: soak seed soaking；The soak is made of 1-4% sodium chloride, 0.1-0.5% potassium permanganate, 2-6% folium artemisiae argyi juice, 1.4-3% sweet wormwood juice, 0.5-1.5% bamboo vinegar, 85-95% water；S2: vernalization auxiliary agent sprays seed rice, and vernalization is carried out under magnetic fields；The vernalization auxiliary agent includes the aqueous solution of following concentration: 5- nitroguaiacol sodium salt 3mg/L, melissyl alcohol 5mg/L, α-naphthaleneacidsodium 50mg/L, basic element of cell division 35mg/L, gibberellin 60mg/L；S3: sowing and sprays composite insecticidal herbicide；The composite insecticidal herbicide includes the aqueous solution of following concentration: ivermectin 25mg/L, double propylamine phosphine 35mg/L, chlorine pyrazothion 40mg/L, nimbin 30mg/L；S4: seedling management.Three kinds of methods such as present invention combination presoaking and germinating, change temperature-accelerated germination, auxiliary magnetic field processing carry out vernalization processing to seed rice, help to break seed dormancy state, induction seed is sprouted, and germination percentage and planting percent are higher.

Description

A kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings
Technical field
The invention belongs to planting technology fields, and in particular to a kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings.
Background technique
Rice is the second largest cereal crops that world's area and total output are only second to wheat, and there are about 55.9% people in the world Mouth is based on rice.It is counted according to Food and Agricultural Organization of the United Nations, 2014 annual world rice sown areas about 163,250,000 are public Hectare, about 740,960,000 tons of total output.The vernalization of rice and seedling-raising technique are the key that places during Rice Cropping, are directly determined Survival rate and effective single plant tiller number after rice seedling transplanting, but method pre-treatment time of traditional water logging vernalization and nursery Long, seed germination rate is low, and newborn seedling resistance is poor, and the slow period is long after transplanting, and growth rate is slow, extends the listing of new season rice Time reduces rice yield.Such as application No. is the patent of CN201710449318.1, the method for culturing seedlings of open rice, bask seeds and Seed soaking time is up to 120h, the time cost of Rice Cropping is increased, in addition, the too long nutrient easily caused in seed rice of seed soaking time is molten Solution loss, influences the planting percent of seed germination rate and rice；Such as application No. is the patent of CN201310753418.5, open rice Seed ventilation presoaking and germinating method, seed soaking time are up to 144h, and equally there is also problem above.Therefore it provides a kind of high-incidence bud rate, Progress important in inhibiting of the accelerating germination of rice seed and method for culturing seedlings of high planting percent for promotion Rice Cropping technology.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of rice paddy seed effectively optimizing vernalization and Method for culturing seedlings.
Technical solution of the present invention is summarized as follows:
A kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings, comprising the following steps:
S1: seed soaking: rice paddy seed is placed in 40 DEG C of soaks, impregnates 0.5h, removes not plump kind, continues to impregnate 12-18h, Imbibition and disinfecting process are completed, then is washed by rubbing with the hands 1-3 times using clear water, the surface of the seed impurity is removed；
The soak includes the component of following weight ratio: sodium chloride 1-4%, potassium permanganate 0.1-0.5%, folium artemisiae argyi juice 2- 6%, sweet wormwood juice 1.4-3%, bamboo vinegar 0.5-1.5%, water 85-95%；
S2: vernalization: being laid in wet cloth surface for seed rice after immersion, at one layer of every paving, a vernalization auxiliary agent is sprayed, to seed rice Overall thickness stops spraying, mulching straw, in 0.2-0.3T magnetic field environment, is controlled at 30-34 DEG C, humidity to 1-2cm 85-90%, vernalization to 85% seed shows money or valuables one carries unintentionally, in 0.1-0.15T magnetic field environment, controlled at 21-25 DEG C, humidity 80- 85%, when continuing vernalization to radicle growth to 0.4-0.6cm, stop vernalization, refines bud 12-18h at room temperature；
The vernalization auxiliary agent includes the aqueous solution of following concentration: 5- nitroguaiacol sodium salt 3mg/L, melissyl alcohol 5mg/L, α- Nafusaku 50mg/L, basic element of cell division 35mg/L, gibberellin 60mg/L；
S3: sowing: 0.2-0.3kg/m is pressed2Application rate seed rice after vernalization is uniformly sprinkling upon seedling medium surface, then cover The sieving fine earth of 0.5-1cm thickness sprays composite insecticidal herbicide, covers polyethylene film；
The composite insecticidal herbicide includes the aqueous solution of following concentration: ivermectin 25mg/L, double propylamine phosphine 35mg/L, Chlorine pyrazothion 40mg/L, nimbin 30mg/L；
S4: seedling management: being seeded into the seeding stage, and control nursery bed temperature on daytime is 25-30 DEG C, and control night nursery bed temperature is 18-22 DEG C, hardening is carried out, when emergence rate >=85%, polyethylene film is opened, sprays a clear water, to the first true leaf whole After extraction, sprinkle profoundly water.
Preferably, the amount of spraying of the vernalization auxiliary agent is 50-100ml/m2。
Preferably, the seedling medium includes the raw material of following parts by weight: 100 parts of sandy loam, 15-20 parts of plant ash, 5-10 parts of ammonium nitrate, 4-6 parts of calcium superphosphate, 10-15 parts of decomposed manure, 30-40 parts of water.
Preferably, the decomposed manure is mixed by any two or more in cow dung, duck excrement, straw, wheat straw Conjunction is fermented.
Preferably, the amount of spraying of the composite insecticidal herbicide is 100-150ml/m2.Beneficial effects of the present invention:
(1) present invention combines three kinds of methods such as presoaking and germinating, change temperature-accelerated germination, auxiliary magnetic field processing to carry out at vernalization seed rice Reason helps to break seed dormancy state, and induction seed is sprouted, and under the action of externally-applied magnetic field, enzymatic activity is higher in seed, storage Hide the conversion rate of substance faster, compared to traditional presoaking and germinating method, seed vitality is stronger, vernalization speed faster, germination percentage more Height, without the process of basking seeds, the pre-treatment time is shorter, under the premise of guaranteeing that seed rice internal water content is sufficient, reduction leaching significantly The kind time, avoid the loss by dissolution of the nutrient in seed rice in soaking process.
(2) soak of the invention is using sodium chloride, potassium permanganate, folium artemisiae argyi juice, sweet wormwood juice, bamboo vinegar, water as raw material, mainly Function is to screen out not plump kind, eliminate seed rice surface germ, germination is promoted to take root.
(3) present invention is using 5- nitroguaiacol sodium salt, melissyl alcohol, α-naphthaleneacidsodium, the basic element of cell division, gibberellin as raw material Vernalization auxiliary agent is compounded, seed rice surface is sprayed on, hence it is evident that promotes seed to sprout, breaking dormancy improves germination percentage and germinating energy, makes to send out The bud time more concentrates.
(4) present invention is obviously shortened the vernalization period, and improves planting percent, saves nursery seed dosage, the rice shoot cultivated Well developed root system, tiller number are more, setting percentage is high, resistance is strong.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification Text can be implemented accordingly.
The present invention provides a kind of rice paddy seed effectively optimizing vernalization and the method for culturing seedlings of an embodiment, comprising the following steps:
S1: reagent preparation and seedling medium:
A. the group assignment system soak of following weight ratio: sodium chloride 1-4%, potassium permanganate 0.1-0.5%, folium artemisiae argyi juice 2- is pressed 6%, sweet wormwood juice 1.4-3%, bamboo vinegar 0.5-1.5%, water 85-95%；
B. vernalization auxiliary agent: 5- nitroguaiacol sodium salt 3mg/L, melissyl alcohol 5mg/L, α-is prepared by the aqueous solution of following concentration Nafusaku 50mg/L, basic element of cell division 35mg/L, gibberellin 60mg/L；
C. by following concentration aqueous solution prepare composite insecticidal herbicide: ivermectin 25mg/L, double propylamine phosphine 35mg/L, Chlorine pyrazothion 40mg/L, nimbin 30mg/L；
D. seedling medium: 100 parts of sandy loam, 15-20 parts of plant ash, ammonium nitrate 5-10 is prepared by the raw material of following parts by weight Part, 4-6 parts of calcium superphosphate, 10-15 parts of decomposed manure, 30-40 parts of water；The decomposed manure by cow dung, duck excrement, straw, Two or more any compost fermentation in wheat straw forms；
S2: seed soaking: rice paddy seed is placed in 40 DEG C of soaks, impregnates 0.5h, removes not plump kind, continues to impregnate 12-18h, Imbibition and disinfecting process are completed, then is washed by rubbing with the hands 1-3 times using clear water, the surface of the seed impurity is removed；
S3: vernalization: being laid in wet cloth surface for seed rice after immersion, at one layer of every paving, by 50-100ml/m2Amount spray one Secondary vernalization auxiliary agent stops spraying, mulching straw to seed rice overall thickness to 1-2cm, in 0.2-0.3T magnetic field environment, control temperature Degree is 30-34 DEG C, humidity 85-90%, and vernalization to 85% seed shows money or valuables one carries unintentionally, in 0.1-0.15T magnetic field environment, controlled at 21-25 DEG C, humidity 80-85% when continuing vernalization to radicle growth to 0.4-0.6cm, stop vernalization, refine bud 12- at room temperature 18h；
S4: sowing: 0.2-0.3kg/m is pressed2Application rate seed rice after vernalization is uniformly sprinkling upon seedling medium surface, then cover The sieving fine earth of 0.5-1cm thickness, by 100-150ml/m2Amount spray composite insecticidal herbicide, cover polyethylene film；
S5: seedling management: being seeded into the seeding stage, and control nursery bed temperature on daytime is 25-30 DEG C, and control night nursery bed temperature is 18-22 DEG C, hardening is carried out, when emergence rate >=85%, polyethylene film is opened, sprays a clear water, to the first true leaf whole After extraction, sprinkle profoundly water.
1 reagent preparation of embodiment and seedling medium
(1) press following weight ratio group assignment system soak: sodium chloride 2.5%, potassium permanganate 0.3%, folium artemisiae argyi juice 4%, Sweet wormwood juice 2.2%, bamboo vinegar 1%, water 90%；
(2) by following concentration aqueous solution prepare vernalization auxiliary agent: 5- nitroguaiacol sodium salt 3mg/L, melissyl alcohol 5mg/L, α-naphthaleneacidsodium 50mg/L, basic element of cell division 35mg/L, gibberellin 60mg/L；
(3) composite insecticidal herbicide: ivermectin 25mg/L, double propylamine phosphine 35mg/ is prepared by the aqueous solution of following concentration L, chlorine pyrazothion 40mg/L, nimbin 30mg/L；
(4) seedling medium: 100 parts of sandy loam, 18 parts of plant ash, 8 parts of ammonium nitrate, mistake is prepared by the raw material of following parts by weight 5 parts of calcium phosphate, 12 parts of decomposed manure, 35 parts of water；The decomposed manure is pressed the mass ratio of 2:1:1 by cow dung, duck excrement, straw Mixed fermentation forms.
The seed soaking of embodiment 2 and vernalization
(1) it soaks seed: rice paddy seed is placed in 40 DEG C of soaks, impregnate 0.5h, remove not plump kind, continue to impregnate 15h, complete Imbibition and disinfecting process, then washed by rubbing with the hands 2 times using clear water, remove the surface of the seed impurity；
(2) vernalization: being laid in wet cloth surface for seed rice after immersion, at one layer of every paving, by 75ml/m2Amount spray and once urge Bud auxiliary agent stops spraying, mulching straw to seed rice overall thickness to 1.5cm, in 0.25T magnetic field environment, controlled at 32 DEG C, humidity 88%, vernalization to 85% seed shows money or valuables one carries unintentionally, in 0.13T magnetic field environment, controlled at 23 DEG C, humidity 83%, When continuing vernalization to radicle growth to 0.5cm, stop vernalization, refines bud 15h at room temperature.
Table 1 lists the germination time of germination accelerating method of the present invention and the relationship of germination percentage
Table 1:
Table 2 lists the germination time of common germination accelerating method and the relationship of germination percentage
Table 2:
Known to comprehensive Tables 1 and 2: when germination time is 60h, the vernalization rate of the method for the present invention is 96.1%, that is, is reached 95% sowing standard, and the vernalization rate of comparative example is only 88.2%, meanwhile, the method for the present invention is in 24-36h period, germination percentage It presents and increases explosively, and comparative example is in the 36-48h period, seed rice just starts largely to germinate, i.e. the vernalization of the method for the present invention Time than comparative example reduce 12h, vernalization rate faster, it is more efficient.
The sowing of embodiment 3 and nursery
(1) it sows: pressing 0.25kg/m2Application rate seed rice after vernalization is uniformly sprinkling upon seedling medium surface, then cover The sieving fine earth of 0.75cm thickness, by 125ml/m2Amount spray composite insecticidal herbicide, cover polyethylene film；
(2) seedling management: being seeded into the seeding stage, and control nursery bed temperature on daytime is 28 DEG C, and control night nursery bed temperature is 20 DEG C, hardening is carried out, when emergence rate >=85%, polyethylene film is opened, sprays a clear water, be completely drawn out to the first true leaf Afterwards, it sprinkles profoundly water.
Table 3 list the rice seedling that method for culturing seedlings of the present invention and common method for culturing seedlings (comparative example) are cultivated planting percent, Tiller number, setting percentage and Field diseases
Table 3:
As shown in Table 3, the planting percent of the rice seedling that the method for the present invention is cultivated, tiller number, setting percentage are far superior to pair Ratio, i.e., common method for culturing seedlings, meanwhile, there is high insect pest performance, Field diseases are lower than 2%.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details.

Claims (5)

1. a kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings, which comprises the following steps:
S1: seed soaking: rice paddy seed is placed in 40 DEG C of soaks, impregnates 0.5h, removes not plump kind, is continued to impregnate 12-18h, be completed Imbibition and disinfecting process, then washed by rubbing with the hands 1-3 times using clear water, remove the surface of the seed impurity；
The soak includes the component of following weight ratio: sodium chloride 1-4%, potassium permanganate 0.1-0.5%, folium artemisiae argyi juice 2-6%, Sweet wormwood juice 1.4-3%, bamboo vinegar 0.5-1.5%, water 85-95%；
S2: vernalization: being laid in wet cloth surface for seed rice after immersion, at one layer of every paving, a vernalization auxiliary agent is sprayed, to seed rice total thickness Degree stops spraying, mulching straw, in 0.2-0.3T magnetic field environment, controlled at 30-34 DEG C, humidity 85- to 1-2cm 90%, vernalization to 85% seed shows money or valuables one carries unintentionally, in 0.1-0.15T magnetic field environment, controlled at 21-25 DEG C, humidity 80- 85%, when continuing vernalization to radicle growth to 0.4-0.6cm, stop vernalization, refines bud 12-18h at room temperature；
The vernalization auxiliary agent includes the aqueous solution of following concentration: 5- nitroguaiacol sodium salt 3mg/L, melissyl alcohol 5mg/L, α-naphthalene second Sour sodium 50mg/L, basic element of cell division 35mg/L, gibberellin 60mg/L；
S3: sowing: 0.2-0.3kg/m is pressed2Application rate seed rice after vernalization is uniformly sprinkling upon seedling medium surface, then cover 0.5- The sieving fine earth of 1cm thickness sprays composite insecticidal herbicide, covers polyethylene film；
The composite insecticidal herbicide includes the aqueous solution of following concentration: ivermectin 25mg/L, double propylamine phosphine 35mg/L, chlorine pyrrole Sulphur phosphorus 40mg/L, nimbin 30mg/L；
S4: seedling management: being seeded into the seeding stage, and control nursery bed temperature on daytime is 25-30 DEG C, and control night nursery bed temperature is 18- 22 DEG C, hardening is carried out, when emergence rate >=85%, polyethylene film is opened, sprays a clear water, be completely drawn out to the first true leaf Afterwards, it sprinkles profoundly water.
2. a kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings according to claim 1, which is characterized in that the vernalization The amount of spraying of auxiliary agent is 50-100ml/m2。
3. a kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings according to claim 1, which is characterized in that the nursery Matrix includes the raw material of following parts by weight: 100 parts of sandy loam, 15-20 parts of plant ash, 5-10 parts of ammonium nitrate, calcium superphosphate 4-6 Part, 10-15 parts of decomposed manure, 30-40 parts of water.
4. a kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings according to claim 3, which is characterized in that described decomposed Organic fertilizer is formed by two or more any mixed fermentation in cow dung, duck excrement, straw, wheat straw.
5. a kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings according to claim 1, which is characterized in that described compound The amount of spraying of weeding and pest-killing agent is 100-150ml/m2。
CN201811235715.XA 2018-10-23 2018-10-23 A kind of rice paddy seed effectively optimizing vernalization and method for culturing seedlings Pending CN109258000A (en)

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Application publication date: 20190125