CN109662004B - Method for growing seedlings of out-of-season wild red lotus - Google Patents

Abstract

The technical scheme adopted by the invention is as follows: an out-of-season wild rose seedling method adopts seeding propagation and comprises the following steps: (one) seed selection: selecting plump lotus seeds without diseases and insect pests, wherein the purity is 98 percent, and the seed purity is 98 percent; (II) seed treatment: using a pruning shear to cut off a small seed coat on one side with the concave points; and (III) seed soaking and germination accelerating. Combining the propagation characteristics of wild red lotus, breaking through the original asexual propagation, adopting seeding propagation, solving the problems of large seed reserving area of rhizome propagation, complex processing and degeneration and mixing of varieties; the second cooperates the growth law, provides heatable hotbed, guarantees humiture and illumination requirement, breaks the difficult problem that current anti-season can't be enjoyed the flower, and through verifying, the survival rate of growing seedlings and the survival rate of transplanting are all higher simultaneously, especially in the modern times that people enjoy the promotion to the material, are fit for promoting, satisfy people and appreciate the demand.

Description

Method for growing seedlings of out-of-season wild red lotus

[ technical field ] A method for producing a semiconductor device

The invention relates to a seedling raising method, in particular to an out-of-season wild rose violet seedling raising method.

[ background of the invention ]

The wild red lotus is a perennial aquatic herb of Nymphaeaceae, belongs to large lotus root, has bright flowers, the diameter of the flowers is about 30 centimeters, the plant height is 1.8-2.0 meters, the leaf and stem are 0.8-1 meter, and the width is large; the seed shape is long and narrow; the method has the advantages of high uniformity of genetic genes, more standard and regular growth, strong stress resistance, easy management and the like; the underground stems are used for propagation in cultivation, and the vegetative propagation has the following defects:

(1) the occupied area for seed reservation is large;

(2) the bacteria are easy to carry and transmit diseases, and the prevention and the treatment are difficult;

(3) the variety is mixed and degenerated, so the method is not suitable for popularization;

(4) the natural florescence is 6-8 months, and no flowers are observed in winter and spring.

Meanwhile, seedling raising technologies in the prior art are all made according to the solar terms of the seasons, for example, in articles such as artificial trollius chinensis seedling raising technologies and the like, the method that mature seeds suitable for sowing are collected in 8-9 months in the last year, the seeds are stored in a dry place, and seedling raising is started after the climate is warm in the spring of the second year is mentioned many times, and the out-of-season cultivation mode is rarely reported, and the method for cultivating the out-of-season wild roses is worth being researched.

[ summary of the invention ]

The invention mainly aims to provide an out-of-season wild rose seedling raising method, which can effectively solve the problems in the background technology by sowing and breeding and heating hotbed cultivation.

In order to achieve the purpose, the invention adopts the technical scheme that:

an out-of-season wild rose seedling method adopts seeding propagation and comprises the following steps:

(one) seed selection: selecting plump lotus seeds without diseases and insect pests, wherein the purity is 98 percent, and the seed purity is 98 percent;

(II) seed treatment: using a pruning shear to cut off a small seed coat on one side with the concave points;

(III) seed soaking and germination accelerating: beginning to grow seedlings in September, soaking all seeds for 5 minutes by using 0.3-0.4% potassium permanganate, then filling a glass container or a transparent plastic container with dechlorination water, keeping the water temperature at 24-27 ℃, keeping the water level to be proper for submerging the seeds, and placing the container in a place with sufficient indoor illumination; water is changed frequently, and if the temperature is high, the water can be changed twice a day; after one day of soaking, the healthy seeds can sink, and floating seeds which cannot develop are removed;

and (IV) temporary planting and seedling raising: cooling gradually in october, gradually reducing the temperature from 25 ℃ to below 20 ℃, manufacturing a temporary hotbed in a place with sufficient sunlight, putting clay and river sand with the weight ratio of 2:1 into the hotbed, soaking the hotbed with clear water for two days in advance, selecting seedlings which have grown to 10-15 cm in the step (three), adding 10% of wettable rooting powder into mud and water to form paste to tightly wrap the hairy root when temporary planting is carried out, directly placing the wrapped seedlings on the temporary hotbed for seedling culture without burying in soil, controlling the water level to be 3-5 cm and the plant spacing to be 10 cm, and controlling the temperature to be 26-30 ℃;

(V) manufacturing a heatable hotbed: the temperature is reduced to about 15 ℃ in November, and a hotbed with a heatable bottom is manufactured.

(VI) transplanting: preparing a flowerpot or a nutrition pot with the caliber of 30 cm and without air holes, filling mud on a temporary hotbed used in the two-thirds step (IV), mixing 2-3 g of compound fertilizer and 1-2 g of calcium superphosphate in each pot, and soaking for two weeks in advance; when three leaves and two buds grow on the lotus seeds and the fibrous roots are 3-6 cm, selecting seedlings with white roots, strong seedlings and bright leaf colors, transplanting the seedlings into a flowerpot or a nutrition pot, planting the underground parts into mud completely at the water level of 5-10 cm, wherein 1-2 seedlings are good for uniform distribution and avoiding crowding, placing the seedlings into a heating hotbed in the step (five) after planting, heating, and covering a film for heat preservation; and (3) lifting the greenhouse film to ventilate and clear water drops on the greenhouse film in time in the morning on a sunny day.

(VI) supplementing light in the heatable hotbed: the growth and the flowering period are influenced by the length and the intensity of illumination, the illumination intensity of wild roses is required to be 6-8 Wanluxes, the length of the sunlight in winter is short, light is supplemented, the illumination duration of the lotus in each day is required to be 10-12 hours, the sunlight duration under natural conditions in winter cannot be reached, 400-ion 600W high-pressure sodium lamps are additionally arranged at four meters above a heating hotbed, one high-pressure sodium lamp is additionally arranged every 4-5 meters, the light is supplemented at 6:00-9:00 or 17:00-20:00 in sunny days, the illumination for 3-4 hours after sunset can be increased in the flowering period, and the flowering can be promoted in advance; supplementing light all day in cloudy days and severe weather;

(VII) heating the humidity in the hotbed: controlling the relative humidity in the hotbed to be 75-85%, drying in winter, spraying twice a day by spraying or covering a film for moisturizing and heat preservation;

(VIII) heating the temperature in the hotbed: the temperature of water in the hotbed is 23-26 ℃, the temperature of air is controlled to be about 24-26 ℃ at night and to be 28-30 ℃ or above in the daytime; the temperature rises in fine days and reaches 35 ℃ or above for timely ventilation, and after the temperature drops, the film is covered in time for well heat preservation;

(nine) heating the water and fertilizer in the hotbed: the water is quickly evaporated when the temperature is high, water is timely supplemented, the floating leaves are floated on the water surface as a standard, water is gradually added after the vertical leaves are lifted out of the water surface, the height of the water surface is increased, and the water level is based on the fact that the vertical leaves are not submerged; adding water, and keeping the temperature of the water at about 24-26 ℃; controlling the pH value to be between 6.5 and 7.2; spraying 0.2-0.23% potassium nitrate diluent once per leaf in the early stage, and spraying 0.15-0.17% monopotassium phosphate diluent on leaf surfaces in the later stage; applying water-soluble fertilizer before and after the vertical leaves emerge according to the growth requirement;

(ten) pest control: the main diseases are spot blight and spot disease, and 25% of wettable carbendazim raw powder or thiophanate methyl raw powder is scattered on lotus leaves in the morning and evening; the main insect pests are: spraying 15 g/mu of chlorantraniliprole and 2000 times of imidacloprid solution to the prodenia litura and the aphid for prevention and treatment; for preventing and treating ampullaria gigas, metaldehyde is used for broadcasting or piling.

Further, the preparation of the water-soluble fertilizer comprises the following steps: each liter of water contains 0.25 to 0.27 gram of calcium nitrate, 0.12 to 0.14 gram of potassium nitrate, 0.06 to 0.08 gram of monopotassium phosphate, 0.12 to 0.14 gram of magnesium sulfate, 8.0 to 10.0 milligrams of EDTA disodium salt, 5.0 to 7.0 milligrams of ferrous sulfate, 1.3 to 1.5 milligrams of manganese sulfate, 2.0 to 2.5 milligrams of boric acid, 0.06 to 0.07 milligrams of zinc sulfate, 0.03 to 0.05 milligrams of copper sulfate, 0.08 to 0.1 milligrams of sodium molybdate, the pH of a stock solution of the water-soluble fertilizer is controlled between 5.5 and 6.5, and the water-soluble fertilizer is applied once per week.

Compared with the prior art, the invention has the following beneficial effects:

firstly, through sowing and breeding, the problems of large seed reserving area, complex treatment and degeneration and mixing of varieties in rhizome breeding are solved;

secondly, according to the problem of insect damage in the growing period, the main diseases are spot blight and spot disease, and 25% of wettable carbendazim raw powder or thiophanate methyl raw powder is scattered on lotus leaves in the morning and at night; the main insect pests are: spraying 15 g/mu of chlorantraniliprole and 2000 times of imidacloprid solution to the prodenia litura and the aphid for prevention and treatment; preventing and treating ampullaria gigas, and performing broadcast application or stacked application by metaldehyde;

thirdly, a heatable hotbed, a foamed ceramic layer, a self-adhesive high-density rubber-plastic fireproof plate compounded with a reflective film, a carbon crystal ink heating plate, a silver gray single-side heat-insulating film compounded with pearl wool and a PEP waterproof film are adopted, and the planting trough has a heating function through the cooperation of various structures, and the arrangement of an arch shed ensures that the heat-insulating effect is good; the temperature requirement, the humidity requirement and the illumination requirement of the growth of the wild red lotus are met, and the out-of-season cultivation is realized;

the foamed ceramic layer has no peculiar smell at high temperature, good heat insulation performance, high density and hardness and good bearing effect; the edges of the two sides of the heat-insulating film and the waterproof film are inclined, the two sides of the heat-insulating film and the waterproof film are inclined to generate a certain radian, so that water drainage is facilitated, and the edges are completely wrapped to prevent leakage; the supporting frame moves in the T-shaped groove through the connecting blocks and the rollers, so that the arched shed has a telescopic function, workers can manage the growth of plants in the hotbed conveniently, and the arched shed is convenient to use and high in practicability; the setting of draw-in groove provides the fixed point for the plastic film on the hunch canopy, through metal filler strip card at the draw-in groove internal fixation, convenient operation and practicality.

In conclusion, the propagation characteristics of the wild red lotus are combined, the original asexual propagation is broken through, and the problems of large seed reserving area, complicated treatment and variety degeneration and mixing of rhizome propagation are solved by adopting sowing propagation; the second cooperates the growth law, provides heatable hotbed, guarantees humiture and illumination requirement, breaks the difficult problem that current anti-season can't be enjoyed the flower, and through verifying, the survival rate of growing seedlings and the survival rate of transplanting are all higher simultaneously, especially in the modern times that people enjoy the promotion to the material, are fit for promoting, satisfy people and appreciate the demand.

[ description of the drawings ]

FIG. 1 is a side view of the overall structure of a hotbed for cultivating out-of-season wild red lotus according to the present invention;

FIG. 2 is a perspective view of a hotbed for cultivating out-of-season wild red lotus according to the present invention;

FIG. 3 is a schematic view showing the connection between the hotbed support and the T-shaped groove for the out-of-season wild red lotus cultivation according to the present invention;

FIG. 4 is a schematic view showing the structure of a hotbed slot for out-of-season wild red lotus cultivation according to the present invention.

[ detailed description ] embodiments

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example 1

An out-of-season wild rose seedling method adopts seeding propagation and comprises the following steps:

(one) seed selection: the lotus seeds which are grown in the current year, mature, full and uniform in size are selected, the purity is 98%, the seed purity is 98%, and the lotus seeds are stored in a cool and dry place.

(II) seed treatment: because the shell of the lotus seed is hard, the barrier layer is arranged in the skin of the lotus seed, and the moisture and the air are prevented from permeating and dissipating. The lotus seed has an air chamber for storing trace amount of air, which is helpful for breathing and maintaining life. Performing manual opening treatment before seed soaking, cutting off a small piece of seed coat on the side with the concave point by using a pruning shear, and after the seed coat is broken, moisture and air are permeated to promote the movement of embryo and induce germination.

(III) seed soaking and germination: seedling culture is started in September, the seeds are placed in a flat disc after the hull breaking treatment, the water level is suitable for submerging the seeds, the water temperature is suitable for 24-27 ℃, and the flat disc is placed in a place with sufficient indoor illumination; the water is changed frequently to prevent the rot, and the water can be changed twice every day if the temperature is high; sprouting in 3-6 days, and enhancing illumination after sprouting; after 15 days, the young leaves are flattened, and the temporary planting can be carried out.

And (IV) temporary planting and seedling raising: and (2) cooling for october, manufacturing a temporary seedling raising bed, wherein the position is suitable for a place with sufficient illumination, placing clay and river sand with the weight ratio of 2:1 into a hotbed, soaking the clay and river sand in clear water for two days in advance, selecting the seedlings which have grown to 10-15 cm in the step (three), adding 10% of wettable rooting powder into mud and water to form paste to tightly wrap the rooting part during temporary planting, directly placing the wrapped seedlings on the temporary hotbed for raising seedlings without burying the seedlings in soil, keeping the water level at 3-5 cm and the plant spacing at 10 cm, and not applying fertilizer during the period, wherein the temperature is 26-30 ℃. The temporary hotbed of this embodiment is a common greenhouse.

(V) manufacturing a heatable hotbed: referring to fig. 1-4, the temperature is reduced to about 15 ℃ in november, a hotbed with a heatable bottom is manufactured, the hotbed comprises a planting groove 1, a foamed ceramic layer 2, a self-adhesive high-density rubber and plastic fireproof plate 3 compounded with a reflective film, a carbon crystal ink heating plate 4, a silver gray single-sided heat preservation film 5 compounded with pearl wool and a PEP material waterproof film 6 are sequentially arranged at the bottom of the planting groove 1 from bottom to top, an arch shed 7 is arranged at the upper end of the planting groove 1, a plurality of support frames 8 are arranged at intervals on the arch shed 7, the specific number is determined according to the length of the hotbed, one support frame 8 is normally arranged at 1 meter, the support frame 8 is slidably connected with the upper end of the planting groove 1, and a sodium lamp 10 is arranged above the planting groove 1 through a support rod 9;

furthermore, the silver gray single-sided heat preservation film 5 compounded by the pearl wool and the PEP waterproof film 6 are inclined at the two side edges.

Further, planting 1 upper end symmetry in groove is equipped with T type groove 11, be equipped with connecting block 12 in the T type groove 11, connecting block 12 bottom bilateral symmetry is equipped with two sets of gyro wheels 13, gyro wheel 13 and the axle swivelling joint of fixing in connecting block 12, 11 tank cavitys in T type groove are arranged in to gyro wheel 13, support frame 8 is circular-arc, and 8 bottom both ends of support frame and connecting block 12 fixed connection, with the planting 1 upper end that T type groove 11 is adjacent still is equipped with draw-in groove 14, the T type groove 11 outside is arranged in to draw-in groove 14, be equipped with the plastic film on the arched shed 7, the department of linking with planting groove 1 in 7 both sides of arched shed is equipped with insect-proof net 15, the plastic film is fixed through metal backing strip 16 in placing into draw-in groove 14.

(VI) transplanting: selecting a nutrition pot or a flowerpot with a thirty-centimeter caliber and a non-hole pot bottom, filling mud on a temporary hotbed used in the step (IV) in two thirds, mixing 2-3 g of compound fertilizer and 1-2 g of calcium superphosphate in each pot, and soaking for two weeks in advance; when three leaves and two buds grow on the lotus seeds and the fibrous roots are 3-6 cm, selecting seedlings with white roots, strong seedlings and bright leaf colors, transplanting the seedlings into a flowerpot or a nutrition pot, planting the underground parts into mud completely at the water level of 5-10 cm, placing 1-2 good seedlings in each pot for uniform distribution and avoiding crowding, putting the seedlings into a heatable hotbed in the step (five) after planting, electrifying to heat a carbon crystal ink heating plate 4, moving a support frame 8 of an arched shed 7, and covering a plastic film on the arched shed 7 for heat preservation; and taking the metal cushion strips 16 out of the clamping grooves 14 in the morning on a sunny day, and opening the plastic film on the arched shed 7 to ventilate and clear water drops on the shed film in time.

(VII) heating the humidity in the hotbed: controlling the relative humidity in the hotbed to be 75-85%, drying in winter, spraying twice a day by spraying or covering a film for moisturizing and heat preservation;

(VIII) heating the temperature in the hotbed: the temperature of water in the hotbed is 23-26 ℃, the temperature of air is controlled to be about 24-26 ℃ at night and to be 28-30 ℃ or above in the daytime; the temperature rises to 35 ℃ or above in time for ventilation in fine days, and after the temperature drops, the film is covered in time for heat preservation.

(nine) heating the water and fertilizer in the hotbed: the water is quickly evaporated when the temperature is high, water is timely supplemented, the floating leaves are floated on the water surface as a standard, water is gradually added after the vertical leaves are lifted out of the water surface, the height of the water surface is increased, and the water level is based on the fact that the vertical leaves are not submerged; adding water, and keeping the temperature of the water at about 24-26 ℃; controlling the pH value to be between 6.5 and 7.2; spraying 0.2-0.23% potassium nitrate diluent once per leaf in the early stage, and spraying 0.15-0.17% monopotassium phosphate diluent on leaf surfaces in the later stage; applying water-soluble fertilizer before and after the vertical leaves emerge according to growth requirements, and preparing the water-soluble fertilizer: each liter of water contains 0.25 mg of calcium nitrate, 0.12 g of potassium nitrate, 0.06 g of monopotassium phosphate, 0.12 mg of magnesium sulfate, 8.0 mg of EDTA disodium salt, 5.0 mg of ferrous sulfate, 1.3 mg of manganese sulfate, 2.0 mg of boric acid, 0.06 mg of zinc sulfate, 0.03 mg of copper sulfate and 0.08 mg of sodium molybdate; the water soluble fertilizer is applied once a week.

(ten) pest control: the main diseases are spot blight and spot disease, and 25% of wettable carbendazim raw powder or thiophanate methyl raw powder is scattered on lotus leaves in the morning and evening; the main insect pests are: spraying 15 g/mu of chlorantraniliprole and 2000 times of imidacloprid solution to the prodenia litura and the aphid for prevention and treatment; for preventing and treating ampullaria gigas, metaldehyde is used for broadcasting or piling.

In the embodiment, 150 qualified seeds are selected, treated according to the steps (a) to (d), and the survival rate of the seedlings is recorded; and (4) selecting 120 seedlings, transplanting the seedlings into a bottomless flowerpot, placing 2 seedlings/pot into the heatable hotbed in the step (five), wherein the size of the heatable hotbed is 9m x 0.8m, and the number of the pots in the heatable hotbed is 60, and then calculating the transplanting survival rate after the seedlings grow.

The embodiment finally counts the survival rate of the seedlings to 93.3 percent and the survival rate of the seedlings transplanted to the heatable hotbed to 96.6 percent.

Example 2

In the embodiment, 200 qualified seeds are selected, treated according to the steps (a) to (d), and the survival rate of the seedlings is recorded; and (4) selecting 120 seedlings, transplanting the seedlings into a bottomless flowerpot, placing 2 seedlings/pot into the heatable hotbed in the step (five), wherein the size of the heatable hotbed is 9m x 0.8m, and the number of the pots in the heatable hotbed is 60, and then calculating the transplanting survival rate after the seedlings grow.

The embodiment of the method finally counts the survival rate of the seedlings to be 97.5 percent and the survival rate of the seedlings transplanted to the heatable hotbed to be 95.8 percent.

The rest of the embodiments are the same as those in embodiment 1, and are not described herein again.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (2)

1. An out-of-season wild rose seedling method adopts seeding propagation and comprises the following steps:

(one) seed selection: selecting plump lotus seeds without diseases and insect pests, wherein the purity is 98 percent, and the seed purity is 98 percent;

(II) seed treatment: using a pruning shear to cut off a small seed coat on one side with the concave points;

(III) seed soaking and germination accelerating: beginning to grow seedlings in September, soaking all seeds for 5 minutes by using 0.3-0.4% potassium permanganate, then filling a glass container or a transparent plastic container with dechlorination water, keeping the water temperature at 24-27 ℃, keeping the water level to be proper for submerging the seeds, and placing the container in a place with sufficient indoor illumination; water is changed frequently, and if the temperature is high, the water can be changed twice a day; after one day of soaking, the healthy seeds can sink, and floating seeds which cannot develop are removed;

and (IV) temporary planting and seedling raising: cooling gradually in october, gradually reducing the temperature from 25 ℃ to below 20 ℃, manufacturing a temporary hotbed in a place with sufficient sunlight, putting clay and river sand with the weight ratio of 2:1 into the hotbed, soaking the hotbed with clear water for two days in advance, selecting seedlings which have grown to 10-15 cm in the step (three), adding 10% of wettable rooting powder into mud and water to form paste to tightly wrap the hairy root when temporary planting is carried out, directly placing the wrapped seedlings on the temporary hotbed for seedling culture without burying in soil, controlling the water level to be 3-5 cm and the plant spacing to be 10 cm, and controlling the temperature to be 26-30 ℃;

(V) manufacturing a heatable hotbed: the temperature is reduced to about 15 ℃ in November, and a hotbed with a heatable bottom is manufactured; the hotbed comprises a planting groove (1), wherein a foamed ceramic layer (2), a self-adhesive high-density rubber-plastic fireproof plate (3) compounded with a reflective film, a carbon crystal ink heating plate (4), a silver gray single-side heat-insulating film (5) compounded with pearl cotton and a PEP waterproof film (6) are sequentially arranged at the bottom in the planting groove (1) from bottom to top, an arched shed (7) is arranged at the upper end of the planting groove (1), a plurality of support frames (8) are arranged at intervals on the arched shed (7), the specific number is determined according to the length of the hotbed, one support frame (8) is normally arranged for 1 meter, the support frames (8) are in sliding connection with the upper end of the planting groove (1), and a sodium lamp (10) is arranged above the planting groove (1) through support rods (9);

(VI) transplanting: preparing a flowerpot or a nutrition pot with the caliber of 30 cm and without air holes, filling mud on a temporary hotbed used in the two-thirds step (IV), mixing 2-3 g of compound fertilizer and 1-2 g of calcium superphosphate in each pot, and soaking for two weeks in advance; when three leaves and two buds grow on the lotus seeds and the fibrous roots are 3-6 cm, selecting seedlings with white roots, strong seedlings and bright leaf colors, transplanting the seedlings into a flowerpot or a nutrition pot, planting the underground parts into mud completely at the water level of 5-10 cm, wherein 1-2 seedlings are good for uniform distribution and avoiding crowding, placing the seedlings into a heating hotbed in the step (five) after planting, heating, and covering a film for heat preservation; lifting the greenhouse film to ventilate and clear water drops on the greenhouse film in time in the morning on a sunny day;

(VI) supplementing light in the heatable hotbed: the growth and the flowering period are influenced by the length and the intensity of illumination, the illumination intensity of wild roses is required to be 6-8 Wanluxes, the length of the sunlight in winter is short, light is supplemented, the illumination duration of the lotus in each day is required to be 10-12 hours, the sunlight duration under natural conditions in winter cannot be reached, 400-ion 600W high-pressure sodium lamps are additionally arranged at four meters above a heating hotbed, one high-pressure sodium lamp is additionally arranged every 4-5 meters, the light is supplemented at 6:00-9:00 or 17:00-20:00 in sunny days, the illumination for 3-4 hours after sunset can be increased in the flowering period, and the flowering can be promoted in advance; supplementing light all day in cloudy days and severe weather;

(VII) heating the humidity in the hotbed: controlling the relative humidity in the hotbed to be 75-85%, drying in winter, spraying twice a day by spraying or covering a film for moisturizing and heat preservation;

(VIII) heating the temperature in the hotbed: the temperature of water in the hotbed is 23-26 ℃, the temperature of air is controlled to be about 24-26 ℃ at night and to be 28-30 ℃ or above in the daytime; the temperature rises in fine days and reaches 35 ℃ or above for timely ventilation, and after the temperature drops, the film is covered in time for well heat preservation;

(nine) heating the water and fertilizer in the hotbed: the water is quickly evaporated when the temperature is high, water is timely supplemented, the floating leaves are floated on the water surface as a standard, water is gradually added after the vertical leaves are lifted out of the water surface, the height of the water surface is increased, and the water level is based on the fact that the vertical leaves are not submerged; adding water, and keeping the temperature of the water at about 24-26 ℃; controlling the pH value to be between 6.5 and 7.2; applying water-soluble fertilizer before and after the vertical leaves emerge according to the growth requirement;

(ten) pest control: the main diseases are spot blight and spot disease, and 25% of wettable carbendazim raw powder or thiophanate methyl raw powder is scattered on lotus leaves in the morning and evening; the main insect pests are: spraying 15 g/mu of chlorantraniliprole and 2000 times of imidacloprid solution to the prodenia litura and the aphid for prevention and treatment; for preventing and treating ampullaria gigas, metaldehyde is used for broadcasting or piling.

2. The method for raising seedlings of out-of-season wild red lotus seeds according to claim 1, which is characterized in that: preparing the water-soluble fertilizer: each liter of water contains 0.25 to 0.27 gram of calcium nitrate, 0.12 to 0.14 gram of potassium nitrate, 0.06 to 0.08 gram of monopotassium phosphate, 0.12 to 0.14 gram of magnesium sulfate, 8.0 to 10.0 milligrams of EDTA disodium salt, 5.0 to 7.0 milligrams of ferrous sulfate, 1.3 to 1.5 milligrams of manganese sulfate, 2.0 to 2.5 milligrams of boric acid, 0.06 to 0.07 milligrams of zinc sulfate, 0.03 to 0.05 milligrams of copper sulfate, 0.08 to 0.1 milligrams of sodium molybdate, the pH of a stock solution of the water-soluble fertilizer is controlled between 5.5 and 6.5, and the water-soluble fertilizer is applied once per week; spraying 0.2-0.23% potassium nitrate diluent once per leaf in the early stage, and spraying 0.15-0.17% monopotassium phosphate diluent on leaf surface in the later stage.

Images