CN111869525B

CN111869525B - Seedling raising method for rice seedlings

Info

Publication number: CN111869525B
Application number: CN202010707853.4A
Authority: CN
Inventors: 周纯有; 李秀梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2022-03-25
Anticipated expiration: 2040-07-22
Also published as: CN111869525A

Abstract

The invention belongs to the technical field of rice planting, and particularly relates to a seedling raising method for rice seedlings, which comprises the following steps: 1. building a shed and arranging a bed; 2. hanging wires and placing plates; 3. spreading special fertilizer; 4, paving a special paper film; 5. sprinkling water; 6. sowing; 7. covering soil; 8. paving a nano film; 9. rice seedlings are raised in water; 10. controlling the temperature in the greenhouse and releasing air; the special fertilizer for rice seedling cultivation comprises 20% of straw humus, 10% of biogas residue, 0.5% of chlormequat and 69.5% of soil; uniformly mixing the straw humus, the biogas residues, the chlormequat chloride and the soil in percentage by mass to obtain the special fertilizer for the rice seedlings. The rice seedlings cultivated by the method can be widely applied to rice planting areas, and huge economic benefits and social benefits can be generated. Can eliminate damping off, increase production and efficiency, is green and environment-friendly, saves money, time, labor and worry, solves the problem of taking soil from seedling raising soil, and protects the ecological environment.

Description

Seedling raising method for rice seedlings

The technical field is as follows:

the invention belongs to the technical field of rice planting, and particularly relates to a seedling raising method for rice seedlings grown in water.

Background art:

the rice is a high-yield crop, and is also a staple food in people's life, and the proportion of the rice in the staple food is about 70 percent. With the demand of people, the planting area of rice is enlarged year by year. At present, the rice planting area in China is about more than 3000 hectares, which accounts for about 30 percent of the total cultivated land area and about 40 percent of the total grain yield. Therefore, the country has great attention to the rice planting.

In rice planting, seedling raising is the key, seedling raising is successful, and the success of rice planting is 70%. Therefore, the importance of cultivating rice seedlings in rice planting is obvious. At present, the seedlings are transplanted in dry land.

In the rice seedling raising, the most important thing is how to avoid the damping-off disease, once the damping-off disease appears, the damping-off disease becomes an incurable disease, and the damping-off disease can die in 2 to 3 days. The rice can wither by about 70 percent even if the rice is not over produced, and the rice appears about 20 days of seedling age, if the farming season is delayed by re-breeding, the rice seeds cannot be fully mature, and the yield is greatly reduced, even the rice is over produced. The disease becomes a problem of rice planting which is difficult to solve for rice farmers, and the disease is unknown in which year the damping off disease occurs. Although the occurrence probability of damping-off can be reduced by using the seedling strengthening agent at present, the seedling strengthening agent still exists. Therefore, the dry-land seedling has serious planting defects, particularly the emergence of damping off can not be avoided, which is one of the defects of the dry-land seedling of the rice.

The second defect of dry-land rice seedling is that the seedling soil consumption is large, the soil taking is difficult, and the soil taking is more difficult when the planting area is larger. The seedling soil consumption is about 0.2 cubic meter per mu of rice planted, and the seedling soil is about 3 cubic meters for one hectare of rice planted. One rice planting village is calculated according to the rice planting area of about 10000 mu, and about 2000 cubic meters of fertile seedling raising soil is needed. No matter which paddy planting village has no specific soil sampling field for sampling seedling culture soil, the soil can be used year after year, and the seedling culture soil for seedling culture in dry land becomes a big problem which is difficult to solve locally.

The planting area of rice in the whole country is more than 3000 hectare, the seedling raising soil of dry land rice needs about 1 billion cubic meters, and if soil is taken from the land blocks of the cultivated land, 45 ten thousand acres of cultivated land can be destroyed every year. If only one layer is taken, large-area cultivated land can be damaged, the yield is directly influenced after the good black soil layer is taken, vicious circle is formed year after year, and the method becomes another big problem of land management.

If the dry-land seedling is changed into the rice seedling, the problems can be solved. The rice seedling raising technology in paddy field takes water as a carrier and soil as a carrier, not only solves the problem that the soil taking of the seedling raising soil is difficult, but also can solve the problem of damping off, and has lower cost than the traditional seedling raising technology.

The invention content is as follows:

in order to solve the problems, the invention provides a seedling raising method of rice seedlings cultivated in paddy, and the rice seedlings cultivated in paddy can be widely applied to paddy planting areas, and can generate great economic benefit and social benefit. Can eliminate damping off, increase production and efficiency, is green and environment-friendly, saves money, time, labor and worry, solves the problem of taking soil from seedling raising soil, and protects the ecological environment.

The technical scheme adopted by the invention is as follows: a seedling raising method for rice seedlings grown in paddy field, comprising the steps of:

step one, building a shed and arranging a bed

Before seedling culture in spring, a plastic greenhouse is built, and a greenhouse film is buckled; leveling and raking the rice seedbed; (flatness up to the seedling level and seedbed not allowed to have great soil)

Step two, hanging wire and placing plate

Hanging two horizontal lines on the seedbed, wherein the height of the lines is consistent with that of the seedling-raising tray, and two lines are hung on two sides of the seedling-raising tray respectively;

placing the seedling raising tray on a seedling bed flatly according to the two hung horizontal lines;

the seedling raising plate is a hole-free seedling raising plate, standard water adding scale marks are carved on the inner wall of the seedling raising plate, and the top end of the seedling raising plate is provided with an outer edge;

step three, spreading special fertilizer

Uniformly spreading the special fertilizer for the rice seedlings in the paddy field at the bottom of the seedling raising tray by using a fertilizer spreader, wherein the thickness of the special fertilizer for the rice seedlings in the paddy field is not more than 0.5 cm;

the special fertilizer for rice seedling cultivation comprises 15-25% of straw humus, 5-15% of biogas residues, 0.3-0.7% of chlormequat chloride and the balance of soil; uniformly mixing straw humus, biogas residues, chlormequat chloride and soil to prepare the special fertilizer for the rice seedlings;

step four, paving the special paper film

After the working procedures are finished, flatly paving the special paper film for bamboo fiber seedling culture on the special fertilizer for the rice seedling culture;

the special paper film for bamboo fiber seedling culture is provided with uniformly distributed small holes;

step five, sprinkling water

After the special paper film is laid, sprinkling water into the seedling raising tray by using a sprinkling can, wherein the sprinkling amount can ensure that the special fertilizer layer and the special paper film are thoroughly wetted, but no water is accumulated;

step six, sowing

The seedling raising tray after watering is covered with a seedling raising greenhouse, a rice seedling seeder is used for seeding, and the seeds are rice seeds after germination acceleration (seeding according to local varieties and seeding quantity);

step seven, earthing up

Uniformly covering a layer of fine soil on the fine soil screened out by the sieve by using the rice seedling spreader, wherein the fine soil layer can cover the seeds and the seeds can be tightly covered (the covering soil cannot be too thick and is the same as the soil for covering the seeds by traditional seedling raising);

step eight, paving the nano film

Covering with fine soil, and covering with nanometer film to prevent water evaporation;

ninth step, growing rice seedlings

After the working procedures are finished (the process of dry raising rice seedlings is finished, the rice seedlings can expose soil after three days), taking the nano film off after the rice seedlings completely expose soil, observing whether the soil layer is wet soil or not when the rice seedlings are in a state of one leaf and one heart (one leaf and one heart can grow out in 6-7 days), and sprinkling water if the soil layer is not wet soil so as to keep the soil layer in a wet state; after the rice seedlings reach the state of one leaf and one core, irrigating with water, wherein the water level is 0.5-1 cm higher than the soil layer;

step ten, controlling the temperature in the greenhouse and releasing air

Controlling the temperature in the seedling raising greenhouse to be below 30 ℃, covering a greenhouse film at night, and well preserving the heat; when the rice seedlings grow to the seedling age of 8-10 days, spraying a foliar fertilizer on the leaf surfaces of the rice seedlings once;

eleven steps of transplanting rice seedlings

Transplanting rice seedlings within 30-35 days, and transporting the rice seedlings to the field together with the seedling raising tray when transporting the rice seedlings before transplanting.

Further, the special fertilizer for the rice seedlings comprises 20% of straw humus, 10% of biogas residues, 0.5% of chlormequat and 69.5% of soil.

Furthermore, the length, width and height of the seedling raising tray are 57cm multiplied by 27cm multiplied by 4cm, the width of the outer edge of the seedling raising tray is 2cm, the bottom of the outer edge is provided with a reinforcing rib, and the bottom of the seedling raising tray is not provided with holes.

Furthermore, when the seedling raising tray is used for raising seedlings, the using amount of the special fertilizer for rice seedling raising is 380-420 g.

Further, the using amount of the special fertilizer for the rice seedlings is 400 g.

Further, the water is ordinary water or quantum water.

The invention has the beneficial effects that: provides a seedling raising method of rice seedlings, the rice seedlings can be widely applied to rice planting areas, and huge economic benefits and social benefits can be generated. Can eliminate damping off, increase production and efficiency, is green and environment-friendly, saves money, time, labor and worry, solves the problem of taking soil from seedling raising soil, and protects the ecological environment

The rice seedling cultivation method is an agricultural project benefiting the nation and the people, can be widely applied to rice planting areas, and can generate great economic benefits and social benefits. The rice seedling raising is necessary for the 'eighteen mu tillage protection' and the 'black land protection'. Its main advantage is as follows:

(1) can eliminate damping off "

The 'damping-off' is the most worried and difficult to solve problem for rice farmers in dry-land seedling raising of rice, the 'damping-off' is caused by that the rice seedlings grow into water roots firstly and wither about 20 days old, the main roots are not grown yet at this time, the rice seedlings are lack of nutrition, the 'damping-off' can be obtained as long as 1-2 days old and new roots are not well alternated, and the rice seedlings are completely withered 2-3 days after the disease. The life of the first water roots of the rice seedlings can reach more than 40 days, and the rice seedlings can be transplanted after being aged for 30 days, so that the process of alternation of new and old root systems does not occur in the seedling roots. Therefore, the seedling of the rice cultivated in water can not stand off, and the survival rate of the rice seedling is ensured.

(2) Thereby reducing the using amount of rice seedling raising soil

The planting area of rice is continuously enlarged, and the using amount of rice seedling raising soil is increased. The seedling raising soil is required to be about 3 cubic meters per hectare, fertile soil is also required, and the seedling raising soil is bought by rice farmers every year because the seedling raising soil is not taken from a designated land block in a paddy field planting village, so that the planting cost is increased. The paddy rice seedling is mainly cultivated by using water as a main seedling cultivating carrier and only using a small amount of soil, so that the problem of seedling cultivating soil of paddy rice farmers is solved.

(3) Thereby improving the economic benefit of the rice farmers

According to the traditional rice seedling raising method, the cost of each rice seedling is about 4 yuan from seedling raising to field transportation, the cost of the rice seedling raising in water is not more than 2.6 yuan, about 700 rounds of rice seedlings are needed for each hectare of rice planting, about 1000 yuan can be saved for each hectare, the seedling raising cost of rice farmers is reduced, and the planting economic benefit is improved. The rice planting area is more than 3000 hectares in China, and 2000 billions of yuan can be saved every year.

(4) Thereby protecting the ecological environment

The seedling soil used per hectare of the traditional rice seedling cultivation is about 3 cubic meters, the rice planting area in China is about 3000 hectare, the seedling soil used per year is billion cubic meters of fertile soil, and no specific seedling cultivation soil field exists in any rice planting village. The planting area of a common rice planting village is about 9000-10000 mu, and the required rice seedling soil is about 2000 cubic meters. At present, most fertile seedling culture soil is taken from barren mountains, and the ecological environment is seriously damaged. The problem of seedling soil is solved by the rice seedling, and the ecological environment is protected.

(5) Saving money, labor, time and worry

Compared with the traditional rice seedling raising, the cost of raising rice seedlings by water is reduced by more than 1 yuan per plate, which saves money; the traditional rice seedling raising method has the advantages that the soil is used as a carrier, the soil can be used after 7-9 treatment procedures, the treatment is time-consuming and labor-consuming, the labor intensity is high, the rice seedling raising method uses water as a carrier, a large amount of seedling raising soil does not need to be treated, the labor intensity is reduced, and the labor is saved; the traditional rice seedling raising needs 10 man-hours, and the rice seedling raising can be completed by 1 man-hour, which saves time; the traditional rice seedling raising method has the advantages that the rice seedling is worried about to get damping-off every day, the damping-off is caused by that the rice seedling is withered after 20 days of seedling age, the rice seedling is required to be purchased when the rice seedling is cultured again and the rice seedling is missed to transplant, the seedling raising soil of the rice seedling is difficult to take, the damping-off can be avoided for the rice seedling raised in water, the soil taking problem is not worried about, and the method is worry-saving.

(6) Increasing production and income

In the traditional rice seedling raising, in order to reduce the occurrence probability of the damping-off, rice farmers have to use a seedling strengthening agent, and some seedling strengthening agent manufacturers excessively use chlormequat chloride in order to reduce the occurrence probability of the damping-off. Thus, the pesticide effect is still in the field after rice seedlings are transplanted to the field, the rice grows slowly, tillering of the rice is influenced, and the yield of the rice is reduced. The rice seedlings bred by the water method do not need the components, the seedling recovering is quick, the yield is increased by about 10 percent under the same condition, the income of rice farmers is increased, and the yield and the efficiency are increased.

(7) Green environmental protection

In the process of rice seedling cultivation, pesticide and traditional fertilizer are not used, the root system of the rice seedling cultivation is bare root, and the rice seedling can be burnt by using the traditional fertilizer. The special fertilizer and the growth regulator for the rice seedlings are both biological fertilizer and biological regulator, and herbicide is not used, because the rice seedlings do not grow grass, grass seeds do not exist in water, and the herbicide is not needed. Therefore, the rice seedling raising is a green seedling raising technology, and lays a foundation for producing green organic rice in the future.

Description of the drawings:

FIG. 1 is a schematic structural view of a seedling tray according to a first embodiment;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

fig. 4 is a schematic structural view of the special paper film for bamboo fiber seedling cultivation in the first embodiment.

The specific implementation mode is as follows:

example one

The rice seedling raising technology with water as carrier includes only oxygen and hydrogen components. The plant growth needs three elements of nitrogen, phosphorus and potassium, and also contains microelements such as copper, iron, zinc, selenium and the like, the traditional seedling raising uses soil as a carrier, and the elements must be added, otherwise, the growth vigor of rice seedlings is influenced, the rice seedlings in water culture must provide the nutrients, and the rice seedlings can grow vigorously.

The seedling raising earlier stage is the same as the original traditional seedling raising, the greenhouse is well buckled, the seedbed is leveled, and the operation is well carried out later when the seedbed is leveled.

A seedling raising method for rice seedlings grown in paddy field comprises the following steps:

step one, building a shed and arranging a bed

Step two, hanging wire and placing plate

flatly placing the seedling raising plate on a seedling bed, and flatly placing the seedling raising plate;

the seedling-raising tray is a hole-free seedling-raising tray, standard water adding scale marks are carved on the inner wall of the seedling-raising tray, and the top end of the seedling-raising tray is provided with an outer edge; the length, width and height of the seedling raising tray are 57cm multiplied by 27cm multiplied by 4cm, the width of the outer edge of the seedling raising tray is 2cm, and the bottom of the outer edge is provided with a reinforcing rib; the seedling raising tray is made of plastic materials, the wall thickness of the seedling raising tray is twice of that of the traditional seedling tray, and the seedling raising tray can be used for 2-3 years. The bottom surface is designed without holes, water leakage is avoided, the roots of the rice seedlings cannot be pricked, good and bad nutrients and elements in the field are irrelevant to the rice seedlings cultivated in water, even if the rice seedlings are cultivated in low-lying land blocks, the growth of the rice seedlings is not influenced by the adverse components of saline, alkali, acid and the like in the ground, and the rice seedlings are completely isolated from underground soil and water. The professional seedling raising tray can well control the height of the water level, and the amount of water can be controlled by taking each tray as a unit. The special seedling raising tray can overcome the problem that the water surface is difficult to control because the ground is not level, the growth of rice seedlings is directly influenced by the amount of water in the seedling stage, and the depth of the water can be completely controlled. Underground water and soil are isolated from the growth of the rice seedlings, so that the growth conditions of the rice seedlings cannot be changed, and the growth vigor of the rice seedlings can be ensured as long as the production conditions of the rice seedlings are well controlled.

Step three, spreading special fertilizer

Uniformly spreading the special fertilizer for the rice seedlings in the paddy field at the bottom of the seedling raising tray by using a fertilizer spreader, wherein the thickness of the special fertilizer for the rice seedlings in the paddy field is not more than 0.5 cm; paving 400 g of special fertilizer for the paddy rice seedlings at the bottom of a seedling tray, wherein the special fertilizer is required to be paved;

the special fertilizer for rice seedling cultivation comprises 20% of straw humus, 10% of biogas residues, 0.5% of chlormequat and 69.5% of soil; uniformly mixing the straw humus, the biogas residues, the chlormequat chloride and soil in percentage by mass to prepare the special fertilizer for the rice seedlings;

because the special seedling raising tray completely isolates nutrients and water in underground soil, a special fertilizer for raising rice seedlings needs to be provided for providing nutrients for the growth of the rice seedlings and promoting the growth of the rice seedlings. However, the roots of the rice seedlings are exposed and directly contact with the fertilizer, and the roots are burnt to death due to too high fertilizer nutrients. If the fertilizer nutrient is too low, the water does not have enough nutrient, and the rice seedlings can grow badly due to lack of nutrient. There is a need for a fertilizer (the above fertilizer) for rice seedlings for paddy rice growth, which can provide suitable nutrients for the growth of rice seedlings. The special fertilizer is used as a fertilizer, and a regulator (growth regulator) with functions of sterilization and preventing damping-off is added, so that the special fertilizer prepared according to the proportion can not burn seedlings, can provide enough nutrients for rice seedlings, and can prevent the emergence of damping-off of the rice seedlings in a growth period. The special fertilizer for the rice seedlings cultivated in paddy with the thickness of less than 0.5 cm is spread at the bottom of each seedling tray, and the optimal amount of the special fertilizer for the rice seedlings cultivated in paddy with the thickness of about 1 cubic meter is used in the seedling area controlled to be 2-3 hectares.

Step four, paving the special paper film

the special paper film for bamboo fiber seedling culture is provided with uniformly distributed small holes; the special paper film for bamboo fiber is synthesized by taking bamboo fiber paper pulp as a material and implanting a growth agent and quantum. The combination of the plant growth agent and the quantum can improve the effect of the growth agent, and the paper film is used as a carrier to provide nutrients for the rice seedlings. The special paper film plays a vital role in the process of rice seedling raising, and is free of pollution when planted in a field. The special fertilizer is covered under the paper film, the special fertilizer contains some components of light objects and can float after meeting water, and the floating objects cannot float after being covered by the paper film.

Step five, sprinkling water

After the special paper film is laid, sprinkling water into the seedling raising tray by using a sprinkling can, wherein the sprinkling amount can ensure that the special fertilizer layer and the special paper film are thoroughly wetted, but no water is accumulated; spraying common water or quantum water, preferably quantum water, wherein the quantum water is prepared by a quantum water machine;

step six, sowing

step seven, earthing up

Uniformly covering a layer of fine soil on the fine soil screened out by the sieve by using a rice seedling spreader, wherein the fine soil layer can cover the seeds (the covering soil cannot be too thick and is the same as the soil for covering the seeds by traditional seedling raising);

step eight, paving the nano film

ninth step, growing rice seedlings

After the working procedures are finished (the process of dry raising rice seedlings is finished, the rice seedlings can expose soil after three days), the nano film is taken off after the rice seedlings completely expose soil, and when the rice seedlings are in a state of one leaf and one heart (one leaf and one heart can be grown in 6-7 days), whether the soil layer is wet soil or not is observed, and if the soil layer is not wet soil, water is sprayed to keep the soil layer in a wet state; after the rice seedlings reach the state of one leaf and one core, irrigating with water, wherein the water level is 0.5-1 cm higher than the soil layer;

step ten, controlling the temperature in the greenhouse and releasing air

the 'three-seed separation and seven-tube separation' is characterized in that under the irradiation of sunshine in spring, the temperature in the greenhouse can reach 30-40 ℃, the temperature in the seedling raising greenhouse is controlled below 30 ℃, a greenhouse film is covered at night, heat preservation and later-stage management are well performed, and wind is well released; watering in time, and if the water level is too high, rice seedlings float, the root system is coiled too thick, and the seeder cannot be used; when the rice seedlings grow to the seedling age of 8-10 days, the foliar fertilizer is sprayed on the leaf surfaces of the rice seedlings once, the foliar fertilizer is also called as a rice seedling growth regulator, the rice seedling growth regulator has the effects of killing insects and sterilizing while adding nutrients to the rice seedlings, is a multifunctional regulator, and has a good effect on the later growth of the rice seedlings.

Eleven steps of transplanting rice seedlings

Transplanting rice seedlings within 30-35 days, and transporting the rice seedlings to the field together with a seedling tray when transporting the rice seedlings before transplanting;

transplanting rice seedlings after the seedling age is 30-35 days, and during transplanting, paying attention to rice seedling management, preferably directly transporting rice seedlings to the field by using a rice seedling tray; although the water in the seedling tray is poured off when the rice seedlings are transported, the roots of the rice seedlings contain a small amount of water and drop into the seedling tray, the rice seedlings can be protected by the water, and the rice seedlings can be directly placed in the field after the rice seedlings arrive in the field.

When seedling is raised, firstly placing tray, adding special fertilizer about 0.5 cm, covering special paper film, raising rice seedling in water, observing the level of a seedling tray according to water, and raising the seedling tray when a certain position is low so as to make the seedling tray level. After seedling trays of a greenhouse are arranged, seeding is carried out by using a seeding device, each tray is provided with 140 g-150 g of wet seeds, and seedling can be emerged in the greenhouse after the first-stage seedling culture work is finished, wherein the seedling can be generally carried out in about 3 days.

The rice seedling raising mainly has the following advantages:

(1) the damping off can be eliminated;

(2) the problems of large soil taking amount and difficult soil taking of seedling raising soil are solved, and billions of cubic meters of rice seedling raising soil are needed every year in China;

(3) the cost of rice seedling raising is reduced by about 35 percent, and the cost per hectare is saved by about 1000 yuan;

(4) greatly reducing the labor intensity without 7-8 working procedures of soil with 3 cubic meters per hectare;

(5) the rice seedling raising time is shortened, and about 10 times of time can be saved;

(6) the method solves a plurality of worries of the farmers, and the farmers save worry;

(7) the yield is increased by about 10 percent;

(8) the ecological environment is protected, and a certain effect is achieved on protecting black land and 18 hundred million acres of cultivated land;

(9) and green rice seedlings are raised, and a foundation is laid for creating green organic rice.

Claims

1. A seedling raising method for rice seedlings is characterized in that: the seedling raising method comprises the following steps:

step one, building a shed and arranging a bed

Before seedling culture in spring, a plastic greenhouse is built, and a greenhouse film is buckled; leveling and raking the rice seedbed;

step two, hanging wire and placing plate

step three, spreading special fertilizer

step four, paving the special paper film

the special paper film for bamboo fiber seedling culture is provided with uniformly distributed small holes; the special bamboo fiber paper film is synthesized by taking bamboo fiber paper pulp as a material and implanting a growth agent and quantum;

step five, sprinkling water

step six, sowing

The seedling raising tray after watering is covered with a seedling raising greenhouse, a rice seedling seeder is used for seeding, and the seeds are rice seeds after germination accelerating;

step seven, earthing up

Uniformly covering a layer of fine soil on the fine soil sieved by the sieve by using a rice seedling spreader, wherein the fine soil layer can cover seeds;

step eight, paving the nano film

ninth step, growing rice seedlings

After the working procedures are finished, taking off the nano film after all the rice seedlings are exposed, observing whether the soil layer is wet soil or not when the rice seedlings are in a one-leaf one-core state, and sprinkling water if the soil layer is not wet soil so as to keep the soil layer in a wet state; after the rice seedlings reach the state of one leaf and one core, irrigating with water, wherein the water level is 0.5-1 cm higher than the soil layer;

step ten, controlling the temperature in the greenhouse and releasing air

eleven steps of transplanting rice seedlings

2. A seedling raising method of rice seedlings for paddy field according to claim 1, characterized in that: the special fertilizer for rice seedling cultivation comprises 20% of straw humus, 10% of biogas residues, 0.5% of chlormequat and 69.5% of soil.

3. A seedling raising method of rice seedlings for paddy field according to claim 1, characterized in that: the length, width and height of the seedling raising tray are 57cm multiplied by 27cm multiplied by 4cm, the width of the outer edge of the seedling raising tray is 2cm, the bottom of the outer edge is provided with a reinforcing rib, and the bottom of the seedling raising tray is not provided with holes.

4. A seedling raising method of rice seedlings for paddy field according to claim 3, characterized in that: when the seedling raising tray is used for raising seedlings, the using amount of the special fertilizer for the rice seedlings raised in water is 380-420 g.

5. A seedling raising method of rice seedlings for paddy field according to claim 4, characterized in that: the using amount of the special fertilizer for the rice seedlings is 400 g.

6. A seedling raising method of rice seedlings for paddy field according to claim 1, characterized in that: the water is ordinary water or quantum water.