CN103875330A

CN103875330A - Method for rice cold-proof rice seedling raising

Info

Publication number: CN103875330A
Application number: CN201410130494.5A
Authority: CN
Inventors: 莫超婵
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-02
Filing date: 2014-04-02
Publication date: 2014-06-25

Abstract

The invention discloses a method of rice cold-proof rice seedling raising. The method is characterized by comprising the following steps seeding at the proper time, competing with seasons, seedling raising in a concentrated manner, management in a unified manner, cold-proof rice seedling raising, resistance improvement, soaking seeds for pregermination, uniform sowing and sparse sowing of seeds, cold-proof warm-keeping, prevention of seedlings against corrupting, management strengthening, transplanting at the proper time, disease prevention, seedling hardening, and fertilizer application. The method disclosed by the invention has the advantages that the seeds are sowed and managed as early as possible, watering is carried out at the proper time, and the roots and tillers are promoted to grow; a knitted cloth interlayer rice seedling raising technology is adopted, so that the seedling age elasticity is prolonged, the standing seeds are promoted to be green in time, the disinfection is arranged on a seed bed, the chemical treatment is combined into a whole, the rice seedling resistance is improved, the dwarf rice seedlings are cultivated, and the rice seedlings are green in branches, dry in rods, robust, generates multiple tillers, has strong resistance to diseases; the method is simple and is easy to control, allows fast effect to take and ensures high yield.

Description

The method of the cold-proof seedling of a kind of paddy rice

Technical field

The invention belongs to agricultural planting technique field, the method for the cold-proof seedling of especially a kind of paddy rice.

Background technology

?fraction of the year its harvest that rice cropping is again favourable weather (for the crops) weather by normal temperature is considerable.But man proposes, God disposes, God sometimes flies into a rage and just there will be early rice sowing seedling usually to occur early cold spell in spring season, and it is incomplete that these phenomenons just there will be seed soaking to germinate, cold dead seedling causes agriculture kind to lose receipts, or the thin receipts of thick kind, for this reason, people design a lot of ways, make a fire and heat, have the ash of adding to heat, the indigenous methods such as farmland heat-insulating of pouring water, although these ways are easily gone, but produce little effect often, do not tackle the problem at its root.For this reason, must grasp a set of new technologies, scientific management, scientific farming, could allow common people have every year Good Harvest, good scene beaming with smiles.

Summary of the invention

The object of the present invention is to provide and a kind of use in good time early sowing, fight for season, concentrate seedling, unified management, warming, prevents seedling rot, the cured bar of the blue or green branch of the seedlings of cereal crops, method is simple, easily operates, the method for the cold-proof seedling of a kind of paddy rice of science seedling.

Technical solution of the present invention is such, and the method for the cold-proof seedling of a kind of paddy rice is characterized in that production procedure is: the seedling of beginning sowing in good time → concentrate → cold-proof seedling → presoaking and germinating → even is broadcast light seeding → warming → in good time transplant, and its processing step is:

(1), soaked kind:

1. seed wants fine day to shine half a day, soaks 6～8 hours with strong chlorine oil, carbendazim, pulls afterwards clean soaking again 8～12 hours out,

2. urged bud: 35～38 DEG C of high temperature broken walls, 25～30 DEG C of thermophilics, urge root, moisturizing vernalization and spreading for cooling refining bud,

3. broadcast kind: 60～65 dishes that have 434～353 holes for every square metre of seedling-cultivation plate seedling, 2～3 seeds of every bunch planting kind,

(2), warming: on bamboo arch grid, bamboo arch grid, by the structure manufacture of the every square metre of large grid kind of plastics vegetables, are arc on top with plastics membrane cover, and two is sealed but had doorway.

(3), transplant in good time:

1. diseases prevention: with thiophanate methyl, carbendazim, fenaminosulf sterilization, transplant and add viral A spray medicine by iprobenfos in first 3～5 days,

2. hardening: keeping educating field has moisture content to reach hand to grab agglomeratingly, and loose hand scatters and is advisable,

3. fertilising: transplants and execute with the pouring of loose stool water and 1%～2% urea for front 5～7 days, send to transfer and move sanction, the early rice transplanting length of time rice seedlings grow is 20～25 days, and leaf age is 3.5～4.0 leaves, with the length of time rice seedlings grow of transplanting be 15～20 days, leaf age is the rice shoot of 2～3 leaves.

The present invention's outstanding effect is compared with prior art to begin sowing in good time, and fights for soaked in cold water in season, cold middle vernalization, cold house's improvements sowing, concentrates seedling, unified management, early sowing is pipe early, waters in good time, the short bud of strong root, interlayer seedling, the new seedling-cultivation technique of change control four-in-one.Shoot transplanting equipment is turned green soon, reduces or avoids seedling rot, cultivates healthy and strong rice shoot.Simple to operate, convenient and practical.

Embodiment

Most preferred embodiment of the present invention is such:

One, early sowing in good time, fights for season

Early rice Suitable Sowing Period be late Febuary to early March, closely be careful Changes in weather, get hold of sowing in good time early sowing on opportunity, adopt the method for " cold tail returns dim sowing for cold head seed soaking, cold middle vernalization ", fight for season, grasp the initiative of producing.Select leeward on the sunny side, irrigation and drainage easily field do seedling ground, increase and use the fertilizer becoming thoroughly decomposed, and take film to cover cold-proof heat insulation seedling-cultivation technique and seedling strengthen agent seedling-cultivation technique, prevent seedling rot, cultivate healthy and strong rice shoot.

Two, concentrate seedling, unified management

For ease of the warming of rich water quality management, damage by disease and insect prevention and control and the rice shoot in rice seedling bed, cultivate the short strong seedling of of the right age many tillers, seedling is concentrated in land for growing field crops, selects leewardly to face south, has abundant water resources, the place of traffic convenience concentrates whole field, sowing, seedling.

Three, cold-proof seedling, improves resistance

During early rice sowing seedling, temperature Change is frequent, is easily subject to the impact of cold wave, application " three is large " degeneration-resistant cold-proof seedling-cultivation technique: the one, and non-irrigated seedling-cultivation technique, dry sowing drought pipe or slurry are broadcast drought pipe, water in good time, the short tiller of strong root.The 2nd, woven cloth interlayer seedling-cultivation technique, extends seedling age elasticity, promotes vertical seedling to turn green.The 3rd, seedling strengthen agent seedling-cultivation technique, bed soil disinfection, acid adjustment and rice shoot fertilising, change control " four-in-one ", improve rice shoot resistance, cultivates the short strong seedling of band tiller.

Four, presoaking and germinating, evenly broadcasts light seeding

The one, soak kind.Before seed soaking, should first bask seeds half a day at fine day.When seed soaking, to note seed disinfection, can first use the solution seed soakings such as strong chlorine oil, carbendazim 6～8 hours, pull out after seed is fully cleaned and soak again 8～12 hours, when water temperature is low, can soak length, on the contrary can be shorter.The 2nd, urge bud.According to the principle of " high temperature (35～38 DEG C) breaks chest, thermophilic (25～30 DEG C) and urges root, moisturizing vernalization and spreading for cooling refining bud ", a lot of fall, prevent that high temperature from burning kind.The 3rd, broadcast kind.Before sowing, will closely be careful weather forecast, get hold of sowing opportunity, cold tail warms up head, begins sowing in good time.When sowing, want that light seeding is even to be broadcast, ensure length of time rice seedlings grow quality.Mould 60～65 434 holes of every mu of use or 353 holes of plate seedling raising and mould dish, 2～3 seeds of every bunch planting.Broadcast 80～100 grams of conventional Rices for every square metre of drought seedling or the seedling of woven cloth interlayer, 50～60 grams of hybrid rices, after planting pressing-seed-into-mud or by fine earth lid kind.20～25, the special seedling dish of every mu of use of transplanting, 80～100 grams of every dish sowings.

Five, warming, prevents seedling rot

Land for growing field crops seedling after planting want cover film rainproof, cold-proof, warming.Before epiphragma, to first be plugged bamboo arch, every 50 centimetres of slotting a slices, and as far as possible dark slotting, to strengthen wind loading rating, Bian Gaibian soil compaction surrounding.While running into consecutive low temperature rainy weather, to drain water in field, prevent accumulated water, improve soil temperature, reduce the dead seedling of seedling rot.

Six, strengthen managing and protecting, transplant in good time

The one, anti-good sick: low temperature overcast and rainy day weather easily brings out saprophytic venereal bacteria infringement and occurs rotten and dead seedlings, note spraying medicine control.While there is pythium rot and damping off, the bactericide such as available thiophanate methyl, carbendazim, fenaminosulf are prevented and treated.Transplant and within first 3～5 days, add viral A or Imidacloprid by iprobenfos and add viral A and spray to send and transfer medicine.

The 2nd, refine seedling: low temperature is met fine day later, must guard against and takes off suddenly film, and the hardening of should first ventilating is taken off film again, can not blindly execute the quick-acting fertilizers such as urea, should execute every several days again, must guard against suddenly and cut off the water supply, in case physiology dehydration.As weather returns fine process sharply, sunlight is stronger, suitably pour water and ventilation on daytime, to relax temperature acute variation, after the stable improvements of weather, gradually water in field is arranged to shallow draining again.

The 3rd, Shi Haofei: after stable improvements that it's clearing up, for the rice shoot a little less than growing way, with Foliar Sprayings such as phosphoric acid the second light industry bureau potassium, increasing application phosphorus potassium fertilizer, keeps water balance, promotes that rice shoot recovers to grow.Transplant the pouring of the urea solution with loose stool water or methane liquid or 1%～2% in first 5～7 days and execute, send and transfer transplanting.

Land for growing field crops seedling, it is 20～25 days that early rice is transplanted proper seedling age, leaf age 3～4 leaves, the proper seedling age of transplanting is 15～20 days, the rice shoot of leaf age 2～3 leaves.

Claims

1. a method for the cold-proof seedling of paddy rice, is characterized in that production procedure is: the seedling of beginning sowing in good time → concentrate → cold-proof seedling → presoaking and germinating → even is broadcast light seeding → warming → in good time transplant, and its processing step is:

(1), soaked kind:

1. seed will shine half a day, soaks 6～8 hours with strong chlorine oil, carbendazim, and pull out afterwards to clean and soak again 8～12 hours,

3. broadcast kind: because of 60～65 dishes that have 434～353 holes for every square metre of seedling-cultivation plate seedling, 2～3 seeds of every bunch planting kind,

(2), warming: with plastics membrane covers, on bamboo arch grid, bamboo arch grid are by the structure manufacture of the every square metre of large grid kind of plastics vegetables,

(3), transplant in good time:

3. fertilising: transplants and execute with the pouring of loose stool water and 1%～2% urea for front 5～7 days, send to transfer and move sanction, the early rice transplanting length of time rice seedlings grow is 20～25 days, and leaf age is 3～4 leaves, with the length of time rice seedlings grow of transplanting be 15～20 days, leaf age is the rice shoot of 2～3 leaves.