CN109496811B - Indoor water culture method for iced vegetables - Google Patents
Indoor water culture method for iced vegetables Download PDFInfo
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- CN109496811B CN109496811B CN201811525362.7A CN201811525362A CN109496811B CN 109496811 B CN109496811 B CN 109496811B CN 201811525362 A CN201811525362 A CN 201811525362A CN 109496811 B CN109496811 B CN 109496811B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
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Abstract
The invention provides an indoor water culture method of ice vegetables, which comprises the following steps: the method is characterized in that an artificial light environment is provided for the growing iced vegetables and the iced vegetables are matched with different nutrient solutions in stages to be cultivated, the light environment is different illumination environments with different wave band ratios, the nutrient solutions comprise common leaf vegetable nutrient solutions and special nutrient solutions for the iced vegetables, the iced vegetables in different growth periods adopt different light environment irradiation conditions and implement staged nutrient solution regulation and control, the problems that the iced vegetables are not cold and hot resistant and are limited by seasonal climate are solved, the iced vegetable product is stable and uniform in quality, high in production efficiency and large in product crystallization amount.
Description
Technical Field
The invention relates to the technical field of indoor plant cultivation, in particular to a plant factory cultivation technology of iced vegetables.
Background
Bigele (Mesembryanthemum crystallinum) is a halophyte of the family New Zeylaceae, named because it has a large number of salt vesicle cells growing on the leaf surface and stem, which make the leaf and stem look like a layer of ice crystals covered. The vesicular cells can store a large amount of salt, so that the leaves and stems have salty taste and unique mouthfeel, and are a novel vegetable.
The iced vegetables are not cold or hot, so that the taste of the iced vegetables can be changed under different cultivation conditions, the requirement on the cultivation conditions is high, and the product quality is unstable.
In the prior art, soil cultivation or matrix cultivation is utilized, the production efficiency is low, the produced soil is damaged, matrix waste is difficult to clean, or uniform nutrient solution is adopted for water cultivation, the seedling cultivation efficiency is poor, and the yield and the quality are difficult to balance.
In conclusion, the iced vegetables are not cold and hot resistant, the requirement on the cultivation condition is high, the product quality is unstable, the production efficiency is low, matrix waste is easily generated by soil cultivation and matrix cultivation, and the seedling cultivation efficiency is poor. Therefore, how to realize the annual clean production of the ice dishes and ensure the appearance and the good flavor of the ice dishes is a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide an indoor water culture method for ice vegetables, which is used for solving the problems of low production efficiency of the ice vegetables, difficult cleaning of matrix waste, poor seedling raising efficiency and difficult balance of yield and quality in the prior art.
The invention provides a method for freezing vegetables, which comprises the following steps:
(1) seed treatment and seedling hardening-off during germination,
seed preparation: selecting full seeds, and soaking the seeds in warm soup at 45-50 deg.C for 15-20 min;
accelerating germination: and (3) washing the soaked seeds with normal-temperature RO water for 1-2 times, taking out the seeds for accelerating germination, and putting the seeds in a constant-temperature non-illumination accelerating germination box for accelerating germination, wherein the accelerating germination conditions are as follows: dark for 8-12 hours, constant temperature of 20-23 ℃ and humidity of 90-100%;
sowing: airing the seeds after germination acceleration for 2.5-3 hours until the seeds are scattered and not agglomerated, sowing, soaking the sponge for sowing in advance with water, placing the seeds into a seedling tray, burying the seeds into the sponge, wherein the top of the seeds is slightly exposed by 1-2mm, and the sowing standard is that the seeds are just buried into the sponge, and the top of the seeds is slightly exposed by the sponge; then placing the seedling-raising tray in a germination accelerating box, keeping the temperature at 23 ℃ in the dark and the humidity at 100%, placing for 24 hours, and moving the seedling-raising tray to a seedling-hardening bed to harden seedlings under the light.
(2) The seedling is raised,
when true leaves of the ice vegetable seedlings occur, moving the ice vegetable seedlings into a planting groove to start seedling raising, and controlling the light environment, nutrient solution and temperature and humidity conditions;
(3) the seed is planted for a long time,
when the ice vegetable seedlings grow to 4-6 leaves, carrying out separate planting with the planting density of 20-30 plants per square meter, and controlling the light environment, the nutrient solution and the temperature and humidity conditions;
(4) the crystal is produced,
when the iced vegetable plants grow to 6-8 leaves, the nutrient solution is replaced, and the light environment, the nutrient solution and the temperature and humidity conditions are controlled;
(5) harvesting the seeds,
and (3) pruning and harvesting the iced vegetable side branches when the iced vegetable starts to grow side branches and the side branches grow to the length of 10-15cm (about 3-4 leaves).
Preferably, the light environment conditions in the germination and seedling hardening process are as follows: the proportion of the number of light quanta with the wavelength of 380-399nm is less than or equal to 0.1 percent and the wavelength of 400The proportion of the light quantum with the wavelength of-499 nm is 21-25 percent, the proportion of the light quantum with the wavelength of 500-599nm is 14-15 percent, the proportion of the light quantum with the wavelength of 600-699nm is 46-50 percent, and the proportion of the light quantum with the wavelength of 700-780nm is 12-17 percent; the illumination intensity range of the surface of the seedling refining bed is 190 mu mol/m2s-250μmol/m2s, the illumination time is 10-11 h/d;
the nutrient solution conditions in the germination and seedling hardening process are as follows: irrigating with universal nutrient solution with EC value of 0.8-1.2 mS/cm;
the temperature and humidity conditions in the germination and seedling exercising process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the humidity is 60-80%.
Preferably, the light environment conditions in the seedling raising process are as follows: the proportion of the light quantum with the wavelength of 380-399nm is less than or equal to 0.1 percent, the proportion of the light quantum with the wavelength of 400-499nm is 21-25 percent, the proportion of the light quantum with the wavelength of 500-599nm is 14-15 percent, the proportion of the light quantum with the wavelength of 600-699nm is 46-50 percent, and the proportion of the light quantum with the wavelength of 700-780nm is 12-17 percent; the illumination intensity of the leaf surface is 240 mu mol/m2s-250μmol/m2s, uniformly illuminating for 10-11 h/d;
the nutrient solution conditions in the seedling raising process are as follows: using common leaf vegetable nutrient solution with EC value of 1.2-1.5mS/cm, controlling pH value of the nutrient solution between 5.5-7.5 during seedling raising process;
the temperature and humidity conditions in the seedling raising process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the temperature of the nutrient solution is maintained at 22-18 ℃; the humidity is 60-75%.
Preferably, the light environment conditions in the planting process are as follows: the proportion of the light quantum number with the wavelength of 380-399nm is less than or equal to 0.1 percent, the proportion of the light quantum number with the wavelength of 400-499nm is 13-15 percent, the proportion of the light quantum number with the wavelength of 500-599nm is 17-19 percent, the proportion of the light quantum number with the wavelength of 600-699nm is 50-55 percent, and the proportion of the light quantum number with the wavelength of 700-780nm is 13-17 percent; the illumination intensity of the leaf surface is 150 mu mol/m2s-160μmol/m2s, uniformly illuminating for 13-14 h/d;
the nutrient solution conditions in the planting process are as follows: the EC value is 1.5-2.0mS/cm, and the pH value of the nutrient solution is controlled between 5.5-7.5 in the planting process;
the temperature and humidity conditions in the planting process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the temperature of the nutrient solution is maintained at 22-18 ℃; the humidity is 60-75%.
Preferably, the light environment conditions in the crystal production process are as follows: the proportion of the light quantum number with the wavelength of 380-399nm is less than or equal to 0.1 percent, the proportion of the light quantum number with the wavelength of 400-499nm is 13-15 percent, the proportion of the light quantum number with the wavelength of 500-599nm is 17-19 percent, the proportion of the light quantum number with the wavelength of 600-699nm is 50-55 percent, and the proportion of the light quantum number with the wavelength of 700-780nm is 13-17 percent; the illumination intensity of the leaf surface is 140 mu mol/m2s-150μmol/m2s, uniformly illuminating for 13-14 h/d;
the nutrient solution conditions in the crystal production process are as follows: the special nutrient solution for the ice vegetable with the EC value of 1.5-2.0mS/cm controls the pH value of the nutrient solution between 5.5-7.5 in the crystal production process;
the temperature and humidity conditions in the crystal production process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the temperature of the nutrient solution is maintained at 22-18 ℃; the humidity is 60-75%.
Preferably, in the seedling raising and planting process, the nutrient solution in the planting groove does not exceed the root 2/3.
Preferably, in the harvesting process, after the plant grows to 6-8 large leaves, the iced vegetable starts to generate side branches, when the side branches grow to 10-15cm, the side branches are trimmed and harvested, harvesting is carried out in time before the dark period is finished and the bright start is started, the iced vegetable leaves and the stems are tender, and the iced vegetable leaves and the stems are cut from the stem bases during harvesting, so that the lower leaves are prevented from being damaged, and multiple times of continuous harvesting can be carried out in sequence.
As mentioned above, the indoor water culture method for the iced vegetables provided by the invention has the following beneficial effects:
1. the invention solves the problems that the iced vegetables are limited by seasonal climate and the product quality is unstable through indoor simulation of climate and illumination environment.
2. The invention can make the iced vegetable high yield, large product crystallization amount and excellent taste and flavor by adjusting the characteristics of the nutrient solution at different stages.
3. The invention increases the contact and oxygen absorption opportunities of the root system of the ice vegetable with air by adjusting the distance between the nutrient solution and the root of the ice vegetable.
4. The invention can collect the whole lateral branches in time, thereby avoiding the influence on the quality and being capable of continuously collecting for a plurality of times.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
EXAMPLES 1 to 9 cultivation of iced vegetables
1. Seed treatment and germination hardening
(1) Seed preparation: selecting full seeds, soaking in warm soup for 20min, and controlling the temperature at 50 deg.C;
(2) accelerating germination: washing the soaked seeds with normal-temperature RO water for 1-2 times, and accelerating germination under the conditions of 23 ℃, humidity of 100% and no illumination for 8 hours;
(3) sowing: airing the seeds subjected to germination acceleration for 3 hours, sowing when the seeds are scattered and not agglomerated, wherein the standard of sowing is that the seeds are just buried in sponge, the top of the seeds is preferably slightly exposed out of the sponge, the sponge is soaked by water, then, placing a seedling tray in a germination acceleration box without light, at a constant temperature of 23 ℃ and with humidity of 100% for 24 hours, and then, moving the seedling tray to a seedling exercising bed to exercise seedlings under the light;
(4) hardening seedlings: when seeds sprout and the seed coats crack and are white, hardening seedlings, irrigating by using a general nutrient solution with an EC value of 1.2ms/cm, wherein the environmental temperature condition is 20 ℃ in the daytime, 18 ℃ at night and 80% of humidity, and the light environment parameters (including the proportion of light quanta with different light wavelengths, light intensity and illumination time) are set for about 10 days.
2. Seedling stage
When seedlings grow true leaves, the seedlings are raised, common leaf vegetable nutrient solution with the EC value of 1.2ms/cm, the pH value of 5.5 and the temperature of 22 ℃ is adopted for raising the seedlings, the nutrient solution level in the planting groove does not exceed 2/3 of the root part so as to increase the chances of contact and oxygen absorption of the root system and the air, the environmental temperature condition is 23 ℃ in the daytime, 20 ℃ at night, the humidity is 75 percent, and the light environmental parameters (including the proportion of light quanta with different light wavelengths, the light intensity and the illumination time) are set.
The iced vegetables are cultivated according to the above cultivation method, and the parameters of the light environment in the steps 1(4) and 2 are changed as each embodiment. The number of iceberg leaves in each example was measured, and the experimental results are shown in the following table:
3. stage of permanent planting
When the seedlings grow to 4-6 leaves, separate planting and field planting are carried out, the seedlings are planted at the density of 30 plants per square meter, and the nutrient solution in the planting groove covers the root 2/3, so that the contact and oxygen absorption opportunities of the root system and the air are increased. The method comprises the steps of adopting a common leaf vegetable nutrient solution with an EC value of 1.5ms/cm, a pH value of 7.5 and a temperature of 22 ℃ to carry out seedling culture, setting light environment parameters (including the proportion of light quanta with different light wavelengths, light intensity and illumination time) under the environmental temperature conditions of 23 ℃ in the daytime and 20 ℃ at night and humidity of 75%.
4. Crystal producing period
When the plant grows to 6-8 large leaves, the nutrient solution needs to be replaced to promote the iced vegetable to generate ice crystals, the EC value of the nutrient solution is 1.5mS/cm, the pH value is controlled at 5.5, and the temperature of the nutrient solution is maintained at 22 ℃. The ambient temperature conditions are 20 ℃ in the daytime, 18 ℃ at night and 75% in humidity, and light environment parameters (including the proportion of light quanta with different light wavelengths, light intensity and illumination time) are set.
5. Harvesting period
After the plant grows to 6-8 large leaves, the iceberg starts to grow lateral branches, and when the lateral branches grow to 10-15cm (about 3-4 leaves), pruning and harvesting can be carried out on the lateral branches, and harvesting is carried out before the dark period is finished and the bright period is started. The leaves and stems of the ice vegetable are tender and are cut from the stem base part during collection, the lower leaves are not damaged, and the ice vegetable can be continuously collected for multiple times in sequence.
The iced vegetables are cultivated according to the cultivation method, and the light environment parameters in the steps 3 and 4 are changed as various embodiments. The length of the side branches and the number of leaves of the iceberg in each example are measured, and the experimental results are shown in the following table:
examples 10 to 18 cultivation of iced vegetables
1. Seed treatment and germination hardening
(1) Seed preparation: selecting full seeds, soaking the seeds in warm soup for 15min, and controlling the temperature to be 45 ℃;
(2) accelerating germination: washing the soaked seeds with normal-temperature RO water for 1-2 times, and accelerating germination under the conditions of 20 ℃, humidity of 90% and no illumination for 12 hours;
(3) sowing: airing the seeds subjected to germination acceleration for 3 hours, sowing when the seeds are scattered and not agglomerated, wherein the standard of sowing is that the seeds are just buried in sponge, the top of the seeds is preferably slightly exposed out of the sponge, the sponge is soaked by water, then, placing a seedling tray in a germination acceleration box without light, at a constant temperature of 23 ℃ and with humidity of 100% for 24 hours, and then, moving the seedling tray to a seedling exercising bed to exercise seedlings under the light;
(4) hardening seedlings: when seeds sprout and the seed coats crack and are white, hardening seedlings, irrigating by using a general nutrient solution with an EC value of 0.8ms/cm, wherein the environmental temperature condition is 23 ℃ in the daytime, 20 ℃ at night and 60% of humidity, and the light environment parameters (including the proportion of light quanta with different light wavelengths, light intensity and illumination time) are set for about 10 days.
2. Seedling stage
When seedlings grow true leaves, the seedlings are raised, common leaf vegetable nutrient solution with the EC value of 1.5ms/cm, the pH value of 7.5 and the temperature of 18 ℃ is adopted for raising the seedlings, the nutrient solution level in the planting groove does not exceed 2/3 of the root part so as to increase the chances of contact and oxygen absorption of the root system and the air, the environmental temperature condition is 20 ℃ in the daytime, 18 ℃ at night, the humidity is 60 percent, and the light environmental parameters (including the proportion of light quanta with different light wavelengths, the light intensity and the illumination time) are set.
The iced vegetables are cultivated according to the above cultivation method, and the parameters of the light environment in the steps 1(4) and 2 are changed as each embodiment. The number of iceberg leaves in each example was measured, and the experimental results are shown in the following table:
3. stage of permanent planting
When the seedlings grow to 4-6 leaves, separate planting and field planting are carried out, the seedlings are planted at the density of 30 plants per square meter, and the nutrient solution in the planting groove covers the root 2/3, so that the contact and oxygen absorption opportunities of the root system and the air are increased. The method comprises the steps of adopting a common leaf vegetable nutrient solution with an EC value of 2.0ms/cm, a pH value of 5.5 and a temperature of 18 ℃ to carry out seedling culture, setting light environment parameters (including the proportion of light quanta with different light wavelengths, light intensity and illumination time) under the environmental temperature conditions of 23 ℃ in the daytime, 20 ℃ at night and 60% of humidity.
4. Crystal producing period
When the plant grows to 6-8 large leaves, the nutrient solution needs to be replaced to promote the iced vegetable to generate ice crystals, the EC value of the nutrient solution is 2.0mS/cm, the pH value is controlled at 7.5, and the temperature of the nutrient solution is maintained at 18 ℃. The ambient temperature conditions are 23 ℃ in the daytime, 20 ℃ at night and 60% in humidity, and light environment parameters (including the proportion of light quanta with different light wavelengths, light intensity and illumination time) are set.
5. Harvesting period
After the plant grows to 6-8 large leaves, the iceberg starts to grow lateral branches, and when the lateral branches grow to 10-15cm (about 3-4 leaves), pruning and harvesting can be carried out on the lateral branches, and harvesting is carried out before the dark period is finished and the bright period is started. The leaves and stems of the ice vegetable are tender and are cut from the stem base part during collection, the lower leaves are not damaged, and the ice vegetable can be continuously collected for multiple times in sequence.
The iced vegetables are cultivated according to the cultivation method, and the light environment parameters in the steps 3 and 4 are changed as various embodiments. The length of the side branches and the number of leaves of the iceberg in each example are measured, and the experimental results are shown in the following table:
(5) respectively using prior art and this patent technique to cultivate the ice dish, select 30 ice dishes at random, measure the leaf number of ice dish plant, side branch length respectively, 3 times repeat and get the average value and gather the number of times, the result is shown as the following table:
| iced vegetable cultivated by the prior art | Iced dish cultivated by the patent technology | |
| Side branch length cm | 5-9 | 10-15 |
| Number of leaves on side branch | 1-3 | 3-4 |
| Number of picking | A few times | Multiple times |
| Amount of crystal produced | Is less | Much more |
| Production efficiency | Is low in | Height of |
| Influenced by seasonal climate | Large influence | Has no influence on |
(6) Results and analysis: compared with the prior cultivation technology, the experimental results show that the problem that the iced vegetables are not cold-resistant and are limited by seasonal climate is solved by cultivating the iced vegetables in the luminous environment and the nutrient solution provided by the invention, so that the iced vegetable yield is improved, the crystal yield of the product is large, the production efficiency is high, the quality of the iced vegetables is ensured, and the generation of matrix waste is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
Although the embodiments have been described, once the basic inventive concept is known, other variations and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes that can be used in the present specification or directly or indirectly applied to other related fields are encompassed by the present invention.
Claims (1)
1. An indoor water culture method for iced vegetables is characterized by comprising the following steps:
(1) seed treatment and seedling hardening-off during germination,
seed preparation: selecting full seeds, and soaking the seeds in warm soup at 45-50 deg.C for 15-20 min;
accelerating germination: and (3) washing the soaked seeds with normal-temperature RO water for 1-2 times, taking out the seeds for accelerating germination, and putting the seeds in a constant-temperature non-illumination accelerating germination box for accelerating germination, wherein the accelerating germination conditions are as follows: dark for 8-12 hours, constant temperature of 20-23 ℃ and humidity of 90-100%;
sowing: airing the seeds after germination acceleration for 2.5-3 hours until the seeds are scattered and not agglomerated, sowing, soaking the sponge for sowing in advance with water, placing the sponge into a seedling tray, burying the seeds into the sponge, and slightly exposing the top of the seeds for 1-2 mm; then placing the seedling culture plate in a germination accelerating box, keeping the temperature at 23 ℃ in the dark and the humidity at 100%, placing for 24 hours, and moving the seedling culture plate to a seedling hardening bed to harden the seedlings under the light;
the nutrient solution conditions in the germination and seedling hardening process are as follows: irrigating with universal nutrient solution with EC value of 0.8-1.2 mS/cm;
the temperature and humidity conditions in the germination and seedling exercising process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the humidity is 60-80%;
the light environment conditions in the germination and seedling hardening process are as follows: the proportion of the light quantum number with the wavelength of 380-399nm is less than or equal to 0.1 percent, the proportion of the light quantum number with the wavelength of 400-499nm is 21-25 percent, the proportion of the light quantum number with the wavelength of 500-599nm is 14-15 percent, the proportion of the light quantum number with the wavelength of 600-699nm is 46-50 percent, and the proportion of the light quantum number with the wavelength of 700-780nm12 to 17 percent; the illumination intensity range of the surface of the seedbed is 190 mu mol ∙ m-2∙s-1-250μmol∙m-2∙s-1The illumination time is 10-11 h/d;
(2) the seedling is raised,
when true leaves of the ice vegetable seedlings occur, the ice vegetable seedlings are moved into a planting groove to start seedling raising, nutrient solution in the planting groove does not exceed the root 2/3, and the light environment, the nutrient solution and the temperature and humidity conditions are controlled;
the light environment conditions in the seedling growing process are as follows: the proportion of the light quantum with the wavelength of 380-399nm is less than or equal to 0.1 percent, the proportion of the light quantum with the wavelength of 400-499nm is 21-25 percent, the proportion of the light quantum with the wavelength of 500-599nm is 14-15 percent, the proportion of the light quantum with the wavelength of 600-699nm is 46-50 percent, and the proportion of the light quantum with the wavelength of 700-780nm is 12-17 percent; the illumination intensity of the leaf surface is 240 mu mol ∙ m-2∙s-1 -250μmol∙m-2∙s-1The illumination is uniform, and the illumination time is 10-11 h/d;
the nutrient solution conditions in the seedling raising process are as follows: using common leaf vegetable nutrient solution with EC value of 1.2-1.5mS/cm, controlling pH value of the nutrient solution between 5.5-7.5 during seedling raising process;
the temperature and humidity conditions in the seedling raising process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the temperature of the nutrient solution is maintained at 22-18 ℃; the humidity is 60-75%;
(3) the seed is planted for a long time,
when the ice vegetable seedlings grow to 4-6 leaves, carrying out separate planting with the planting density of 20-30 plants per square meter, and controlling the light environment, the nutrient solution and the temperature and humidity conditions;
the light environment conditions in the planting process are as follows: the proportion of the light quantum with the wavelength of 380-399nm is less than or equal to 0.1 percent, the proportion of the light quantum with the wavelength of 400-499nm is 13-15 percent, the proportion of the light quantum with the wavelength of 500-599nm is 17-19 percent, the proportion of the light quantum with the wavelength of 600-699nm is 50-55 percent, and the proportion of the light quantum with the wavelength of 700-780nm is 13-17 percent; the illumination intensity of the leaf surface is 150 mu mol ∙ m-2∙s-1-160 μmol∙m-2∙s-1The illumination is uniform, and the illumination time is 13-14 h/d;
the nutrient solution conditions in the planting process are as follows: the EC value is 1.5-2.0mS/cm, and the pH value of the nutrient solution is controlled between 5.5-7.5 in the planting process;
the temperature and humidity conditions in the planting process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the temperature of the nutrient solution is maintained at 22-18 ℃; the humidity is 60-75%;
(4) the crystal is produced,
when the iced vegetable plants grow to 8 leaves, the nutrient solution is replaced, and the light environment, the nutrient solution and the temperature and humidity conditions are controlled;
the light environment conditions are as follows: the proportion of the light quantum with the wavelength of 380-399nm is less than or equal to 0.1 percent, the proportion of the light quantum with the wavelength of 400-499nm is 13-15 percent, the proportion of the light quantum with the wavelength of 500-599nm is 17-19 percent, the proportion of the light quantum with the wavelength of 600-699nm is 50-55 percent, and the proportion of the light quantum with the wavelength of 700-780nm is 13-17 percent;
the illumination intensity of the leaf surface is 140 mu mol ∙ m-2∙s-1 -150 μmol∙m-2∙s-1The illumination is uniform, and the illumination time is 13-14 h/d;
the nutrient solution conditions in the crystal production process are as follows: the special nutrient solution for the ice vegetable with the EC value of 1.5-2.0mS/cm controls the pH value of the nutrient solution between 5.5-7.5 in the crystal production process;
the temperature and humidity conditions in the crystal production process are as follows: the day and night temperature is maintained at 23-20 ℃/20-18 ℃; the temperature of the nutrient solution is maintained at 22-18 ℃; the humidity is 60-75%;
(5) harvesting the seeds,
and pruning and harvesting the iced vegetable side branches when the iced vegetable starts to grow side branches and the side branches grow to be 10-15cm in length.
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| CN110583389B (en) * | 2019-09-25 | 2022-04-08 | 福建省中科生物股份有限公司 | Artificial light environment method for plant seedling culture |
| CN111066643A (en) * | 2019-12-18 | 2020-04-28 | 合肥创农生物科技有限公司 | Method for planting agropyron cristatum |
| CN112189554A (en) * | 2020-10-14 | 2021-01-08 | 江苏省农业科学院 | Soilless culture application technology and method for wheatgrass |
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| CN108719033A (en) * | 2018-06-15 | 2018-11-02 | 天津农学院 | A kind of ice dish water planting cultural method |
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