CN117898204A - Land-based industrial cultivation method for seaweed of Solieria - Google Patents
Land-based industrial cultivation method for seaweed of Solieria Download PDFInfo
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- CN117898204A CN117898204A CN202410249408.6A CN202410249408A CN117898204A CN 117898204 A CN117898204 A CN 117898204A CN 202410249408 A CN202410249408 A CN 202410249408A CN 117898204 A CN117898204 A CN 117898204A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01G33/00—Cultivation of seaweed or algae
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Abstract
本发明公开了一种红翎菜属海藻陆基工厂化养殖方法，属于海藻养殖技术领域，所述循环养殖红翎菜属海藻的方法包括养殖系统的准备与搭建；定苗网的制作；红翎菜属海藻的接种与定植；红翎菜属海藻苗种补充；日常管理与环境调控；红翎菜属海藻收获；收获后继续养殖。将红翎菜属海藻苗定植在养殖池中的定苗网上，增强了红翎菜属海藻苗种稳固性；收割后留下的红翎菜属海藻苗可以继续培养，增加了培养次数；养殖用水循环流动养殖红翎菜属海藻苗，维持了整个养殖生态环境的稳定性；养殖用水输出后可直接用于动物养殖；这种循环养殖方式增加了养殖水体稳定性，减少了外源微藻及附生杂藻滋生，提高了养殖品种的产量和品质，有利于该海藻规模化养殖推广。
The invention discloses a land-based factory-based cultivation method of seaweed of the genus Rhodophyta, which belongs to the technical field of seaweed cultivation. The method of circulating cultivation of seaweed of the genus Rhodophyta includes the preparation and construction of a cultivation system; the production of a seedling net; the inoculation and planting of seaweed of the genus Rhodophyta; the supplementation of seaweed seedlings of the genus Rhodophyta; daily management and environmental regulation; harvesting of seaweed of the genus Rhodophyta; and continued cultivation after harvesting. The seaweed seedlings of the genus Rhodophyta are planted on the seedling net in the cultivation pond, thereby enhancing the stability of the seaweed seedlings of the genus Rhodophyta; the seaweed seedlings of the genus Rhodophyta left after harvesting can be continuously cultivated, thereby increasing the number of cultivations; the cultivation water is circulated and flowed to cultivate the seaweed seedlings of the genus Rhodophyta, thereby maintaining the stability of the entire cultivation ecological environment; the cultivation water can be directly used for animal cultivation after being output; this circulation cultivation method increases the stability of the cultivation water body, reduces the growth of exogenous microalgae and epiphytic algae, improves the yield and quality of the cultivated varieties, and is conducive to the promotion of large-scale cultivation of the seaweed.
Description
Technical Field
The invention relates to the technical field of seaweed cultivation, in particular to a land-based industrial cultivation method for seaweed of the genus Solieria.
Background
The large-scale seaweed has important economic value and ecological value, and at present, the domestic large-scale seaweed cultivation has the following problems: 1) The yield of the large seaweed is more than 80% each year and is concentrated on Capparis polyphylla, kelp, undaria pinnatifida, gracilaria and laver, the main products depend on sea areas or ponds, are greatly influenced by external environments, have growth restriction in land-based environments, are slow to grow, have serious pollution of miscellaneous algae, and cannot realize land-based industrial cultivation until now; 2) The large-scale economic seaweed which can be cultivated in a land-based factory has fewer varieties and only includes Botrytis cinerea. These problems have resulted in the current land-based large seaweeds the development of the large-scale aquaculture is not stopped.
Disclosure of Invention
The invention mainly aims to provide a land-based industrial cultivation method for seaweed of the genus Solieria, and aims to solve the technical problem of large-scale cultivation of seaweed of the genus Solieria.
In order to achieve the above purpose, the invention provides a land-based industrial cultivation method of the seaweed of the genus Solieria, which is based on the following cultivation system device:
The cultivation system device comprises a cultivation pond, a water storage sedimentation pond, a pump body, a disinfection and sterilization device and a filtering device, wherein the disinfection and sterilization device is used for disinfecting and sterilizing a water body in the water storage sedimentation pond; the water outlet of the culture pond is connected with the first water inlet of the water storage sedimentation pond, the second water inlet of the water storage sedimentation pond is used for inputting external seawater, the water outlet of the water storage sedimentation pond is used for outputting culture water, and the output culture water can be used for animal culture; the seedling fixing net is positioned in the culture pond;
Based on the device, the land-based industrial cultivation method of the seaweed of the genus Solieria comprises the following steps:
s10, providing seaweed seedlings of the genus Solieria, and injecting sand-filtered seawater into a culture system;
S20, soaking the young seaweed of the Solieria in fresh water, and inoculating and planting the young seaweed of the Solieria on a fixed seedling net of a culture pond in a culture system to obtain the young seaweed of the Solieria which is inoculated for the first time;
S30, on the next day after inoculation, recycling the seed of the uninoculated Solieria, reseeding the seed of the uninoculated Solieria in the area of the fixed seedling net which is not inoculated, and obtaining the inoculated seed of the Solieria algae;
s40, cultivating the inoculated seaweed seedlings of the genus Solieria, and harvesting the seaweed of the genus Solieria to obtain seaweed seedlings of the genus Solieria and cultivation water;
S50, treating the cultivation water, then continuously using the cultivation water to cultivate the seaweed seedlings of the genus Solieria, and harvesting the seaweed of the genus Solieria to obtain the seaweed seedlings of the genus Solieria and the cultivation water;
S60, repeating the step S50.
Optionally, the disinfection and sterilization device comprises an ultraviolet lamp; and/or the number of the groups of groups,
The filter device comprises a micro-filter.
Optionally, in step S10, a nutrient salt is included in the seawater of the culture system.
Optionally, the nutrient salts include nitrate, phosphate and urea.
Optionally, in step S10, the seawater is in a dynamic process in a culture circulation system;
the dynamic process comprises that part of seawater is automatically discharged into a water storage sedimentation tank from a culture tank, sedimentated, disinfected and microfiltered and then pumped into the culture tank.
Optionally, in step S20, the soaking time of the seaweed of the genus Solieria is 10-20S.
Alternatively, in step S20 and step S30: the planting density of the seaweed of the genus Solieria is 1-1.5 kg/m 2; and/or the number of the groups of groups,
The coverage of the seaweed of the genus Solieria on the fixed seedling net is more than 50%.
Optionally, in step S40:
the illumination intensity of the cultivation is 90-150 mu mol multiplied by m -2×s-1; and/or the number of the groups of groups,
The culture temperature is 25-30 ℃; and/or the number of the groups of groups,
The salinity of the culture is 26-32.
Optionally, in step S40: harvesting after 28-45 days of cultivation of the seaweed of the genus Solieria;
when the seaweed of the genus Solieria is harvested, the harvesting length of the seaweed of the genus Solieria is 4-6 cm.
Optionally, in step S50, the treatment of the aquaculture water includes the following steps:
s510, discharging part of the culture water for animal culture, and supplementing sand-filtered fresh seawater into the rest of the culture water to obtain mixed seawater;
S520, precipitating, sterilizing and micro-filtering the mixed seawater, and then entering a culture pond to be used as circulating culture water of the seaweed of the genus Solieria.
The invention provides a land-based industrial cultivation method of seaweed of the genus Solieria, which comprises the steps of pre-soaking seaweed seedlings of the genus Solieria in fresh water, filtering the seawater by sand, and reducing the quantity of mixed algae in a cultivation pond; the seedlings of the seaweed of the genus Solieria are planted on the fixed seedling net in the culture pond for culture, so that the stability of the seedlings of the seaweed of the genus Solieria is enhanced; the seedlings are recovered and reseed in the next day of planting, so that the utilization rate of the seedlings is improved; the seaweed seedlings of the genus Solieria left after harvesting can be continuously cultivated for the next round of seaweed of the genus Solieria, so that the cultivation times are increased, and the cost of field planting and obtaining the seedlings is reduced; the cultivation water circularly flows to cultivate the seaweed seedlings of the Solieria, so that the stability of the whole cultivation ecological environment is maintained; after the water for cultivation is output, the water can be directly used for animal cultivation, so that the utilization rate of the water for cultivation is increased; the circulating cultivation mode increases the stability of the cultivation water body, reduces the breeding of exogenous microalgae and attached miscellaneous algae, and improves the yield and quality of cultivation varieties.
Drawings
FIG. 1 is a diagram of a rack-type seedling-clamping cultivation device for the Solieria pinnatifida in embodiment 1 of the present invention;
FIG. 2 is a picture of the circulating aquaculture system of Solieria in example 1 of the present invention;
FIG. 3 is a picture of the example 1 of the present invention before inoculation of the culture pond;
FIG. 4 is a graph showing the experiment of circulating cultivation and propagation of Solieria pinnatifida in example 1 of the present invention.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Support frame | 11 | Frame |
| 12 | Support tube | 100 | Seaweed cultivation bed |
| 2 | Seedling fixing net | 300 | Water storage sedimentation tank |
| 200 | Culture pond | 500 | Sterilizing device |
| 400 | Pump body | 700 | Pipeline |
| 600 | Filtering device |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The large-scale seaweed has important economic value and ecological value, and at present, the domestic large-scale seaweed cultivation has the following problems: 1) The yield of the large seaweed is more than 80% each year and is concentrated on Capparis polyphylla, kelp, undaria pinnatifida, gracilaria and laver, the main products depend on sea areas or ponds, are greatly influenced by external environments, have growth restriction in land-based environments, are slow to grow, have serious pollution of miscellaneous algae, and cannot realize land-based industrial cultivation until now; 2) The large-scale economic seaweed which can be cultivated in a land-based factory has fewer varieties and only includes Botrytis cinerea. These problems have resulted in the current land-based large seaweeds the development of the large-scale aquaculture is not stopped.
The seaweed of the genus Solieria (Solieria) is an economic seaweed with very wide application prospect, mainly comprises 2 species of Solieria pseudolaris (Solieria pacifica) and Solieria tenuifolia (Solieria tenuis) in China, has the advantages of fast growth, strong temperature resistance, strong pollution resistance and the like in a land-based environment, is suitable for land-based industrial cultivation, and has great development value. The product can be directly eaten and used for medical use, has higher nutrition and health care functions, and can be developed into special meal prepared vegetables, functional beverage additives and the like; can be used as main raw material for extracting carrageenan; the feed can be applied to high-quality feed for cultured organisms; in addition, the device can also effectively absorb nitrogen and phosphorus in eutrophic water, has the function of purifying water quality, and is used as a tool for green comprehensive aquaculture and tail water treatment. These advantages indicate that the seaweed of the genus Solieria is a good quality variety for large-scale industrial cultivation.
At present, development and utilization of the seaweed of the genus Solieria mainly depend on wild resources, and no effective cultivation technology exists, so that large-scale cultivation cannot be realized. Therefore, it is necessary to establish a land-based industrial cultivation method for the seaweed of the genus Solieria, which provides a guarantee for diversification of land-based industrial suitable cultivation varieties of the large seaweed.
In view of the above, the invention provides a land-based industrial cultivation method of seaweed of the genus Solieria, which is based on the following cultivation system devices:
The cultivation system device comprises a cultivation pond 200, a water storage sedimentation pond 300, a pump body 400, a disinfection and sterilization device 500 and a filtering device 600, wherein the disinfection and sterilization device 500 is used for disinfecting and sterilizing a water body in the water storage sedimentation pond 300, the pump body 400 is arranged in the water storage sedimentation pond 300, a water outlet of the pump body 400 is connected with a water inlet of the filtering device 600 through a pipeline 700, and a water outlet of the filtering device 600 is connected with a water inlet of the cultivation pond 200 through a pipeline 700; the water outlet of the culture pond 200 is connected with the first water inlet of the water storage sedimentation pond 300 through a pipeline 700, the second water inlet of the water storage sedimentation pond 300 is used for inputting external seawater through the pipeline 700, the water outlet of the water storage sedimentation pond 300 is used for outputting culture water through the pipeline 700, and the output culture water can be used for animal culture; the fixed seedling net 2 is positioned on the seaweed culture bed 100 in the culture pond 200;
Based on the device, the land-based industrial cultivation method of the seaweed of the genus Solieria comprises the following steps:
s10, providing seaweed seedlings of the genus Solieria, and injecting sand-filtered seawater into a culture system;
s20, soaking the young seaweed of the genus Solieria in fresh water, and inoculating and planting the young seaweed on a fixed seedling net 2 of a culture pond 200 in a culture system to obtain the young seaweed of the genus Solieria which is inoculated for the first time;
s30, on the next day after inoculation, recycling the seed of the uninoculated Solieria, reseeding the seed in the area of the non-inoculated fixed seedling net 2, and obtaining the inoculated seed of the Solieria algae;
s40, cultivating the inoculated seaweed seedlings of the genus Solieria, and harvesting the seaweed of the genus Solieria to obtain seaweed seedlings of the genus Solieria and cultivation water;
S50, treating the cultivation water, then continuously using the cultivation water to cultivate the seaweed seedlings of the genus Solieria, and harvesting the seaweed of the genus Solieria to obtain the seaweed seedlings of the genus Solieria and the cultivation water;
S60, repeating the step S50.
Before the seed of the algae of the Solieria is planted, the inoculation material, the breeding device, the breeding pond 200 and the like are sterilized and cleaned by high-concentration bleaching powder or chlorine tablets.
The culture system is filled with sand filtered seawater. The sand filtration times are at least 3 times, and the sand filtration is used for removing large-particle pollutants and miscellaneous algae germplasm in the seawater as much as possible. Before fresh seawater is injected into the culture pond, the fresh seawater is sterilized and disinfected, so that the possibility of diseases caused by plankton in the seawater to the seaweed of the genus Solieria is reduced.
The young plant of the Solieria is selected to have bright color, complete rhizome and no decay. The seaweed of Solieria comprises any one of fine and weak Solieria and Solieria pseudonar.
In the technical scheme of the invention, the seedlings of the seaweed of the genus Solieria are soaked in fresh water in advance, sand filtration is adopted to filter seawater, and the quantity of the mixed algae in the culture pond is reduced; the seedlings of the seaweed of the genus Solieria are planted on the fixed seedling net in the culture pond for culture, so that the stability of the seedlings of the seaweed of the genus Solieria is enhanced; the seedlings are recovered and reseed in the next day of planting, so that the utilization rate of the seedlings is improved; the seaweed seedlings of the genus Solieria left after harvesting can be continuously cultivated for the next round of seaweed of the genus Solieria, so that the cultivation times are increased, and the cost of field planting and obtaining the seedlings is reduced; the cultivation water circularly flows to cultivate the seaweed seedlings of the Solieria, so that the stability of the whole cultivation ecological environment is maintained; after the water for cultivation is output, the water can be directly used for animal cultivation, so that the utilization rate of the water for cultivation is increased; the circulating cultivation mode increases the stability of the cultivation water body, reduces the breeding of exogenous microalgae and attached miscellaneous algae, and improves the yield and quality of cultivation varieties.
The cultivation method can be used for cultivation of the seaweed of the genus Solieria, is simple to operate, improves cultivation yield by multi-stubble harvesting and continuous cultivation, saves artificial inoculation cost, maintains the stability of the whole cultivation ecological environment by a circulating system, effectively inhibits breeding of exogenous microalgae and attached miscellaneous algae, and optimizes the quality of cultivation varieties. In addition, the water for cultivation can be directly supplied to animal cultivation after being purified by the seaweed of the genus Solieria, thereby increasing the utilization rate of seawater and the benefit of animal cultivation and being beneficial to the large-scale cultivation and popularization of the seaweed.
In some embodiments of the invention, the disinfection and sterilization device 500 comprises an ultraviolet lamp; the filter device 600 comprises a micro-filter. In water treatment, ultraviolet disinfection is a chemical-free method for removing harmful microorganisms and plankton in a water body. Ultraviolet radiation is harmful to single-or multicellular microorganisms such as phytoplankton, and can cause them to die in large numbers. Therefore, in practical application, the ultraviolet lamp is arranged in the water storage sedimentation tank 300, so that the direct exposure of the seaweeds in the genus of the Solieria to the ultraviolet irradiation environment is avoided, meanwhile, the propagation of phytoplankton spores in the water body can be reduced through ultraviolet irradiation, the pollution of the seaweeds in the genus of the Solieria is avoided as much as possible, and the growth speed and the appearance of the seaweeds in the genus of the Solieria are influenced.
The filter device 600 comprises a micro-filter. Microfiltration is a technique for liquid separation using filter media having micron-sized pore sizes. In the microfiltration process, the solution is passed through a porous membrane having pore sizes typically ranging from 0.1to 10 microns that effectively entraps particulates, bacteria, microorganisms, and certain macromolecules, etc., but permit the permeation of water and small molecule solutes.
The ultraviolet lamp irradiates and disinfects and the micro-filter filters the sea water, thereby reducing the survival rate of the algae spores and the possibility of the growth of the algae, ensuring the clean water body and preventing the algae of the genus Solieria from being polluted by the algae as much as possible.
In any embodiment of the present invention, in step S10, the seawater of the culture system includes a nutrient salt; the nutrient salts include nitrate, phosphate and urea. In the cyclic cultivation process, the seedlings of the seaweed of the genus Solieria absorb nutrient salts in the sea water, so that the content of the nutrient salts in the sea water is reduced, and therefore, the nutrient salts need to be supplemented into the cultivation pond 200, so that the subsequent cultivation of the seaweed of the genus Solieria is not limited by nutrient substances. The mixed feeding of nitrate, phosphate and urea can ensure the nutrition of the seaweed seedlings of the Solieria genus to be sufficient, the growth speed to be high and the cultivation time to be shortened.
In any embodiment of the present invention, in step S10, the seawater is in a dynamic process in a culture circulation system; the dynamic process includes automatically draining a portion of the seawater from the aquarium 200 into the impoundment sedimentation tank 300, settling, disinfecting, microfiltering, and pumping into the aquarium 200. After a certain volume of sand filtered seawater is initially injected into the water storage sedimentation tank 300, sedimentation, sterilization and disinfection are carried out, then the seawater is pumped into the culture tank 200 through a micro-filtration pump, the seawater in the culture tank 200 is overflowed and then is automatically discharged into the water storage sedimentation tank 300, the whole culture process keeps the seawater amount in the culture system unchanged, and the seawater is in a dynamic flow process. The dynamic cyclic utilization of the seawater increases the fluidity of the seawater, and the brought water flow promotes the growth of the seaweed and improves the utilization rate of the seawater.
When the sealability of the flow pipeline of the culture pond is poor, if the inlet and outlet pipeline 700 is broken to cause seawater leakage, additional sand filtered fresh seawater is added into the whole circulating culture system. Normally, the amount of original seawater in the culture system is maintained without increasing or decreasing.
In any embodiment of the present invention, in step S20, the soaking time of the seaweed of the genus solarium is 10-20S. The soaking time is within the range, so that the seedlings of the seaweed of the genus Solieria are kept free from being damaged by fresh water, and the foreign algae on the surface layer of the seedlings are reduced as much as possible.
In any embodiment of the present invention, in step S20 and step S30, the plant density of the seaweed of the genus Solieria is 1-1.5 kg/m 2. When the inoculation planting density is lower than 1kg/m 2, the algae seeds are too thin, the cultivation period is prolonged, the algae are easy to be contaminated and the cultivation space is consumed; when the inoculation field planting density is higher than 1.5kg/m 2, the algae seeds are too dense to be mutually overlapped and extruded, and the algae seeds are wasted.
In any embodiment of the present invention, in step S20 and step S30, the coverage of the young plant on the net is > 50% of the young plant of the genus solarium. The inoculation amount should be controlled during inoculation and field planting, and the seedlings are spread on the field net 2 as much as possible, and reach coverage of more than 50%. The seed coverage of the fixed seedling net 2 is very important, and the proper seed coverage can influence the later growth of algae and shorten the harvesting time, and can also reduce the pollution degree of miscellaneous algae.
The next day after inoculation and field planting, scattered and floating seaweed seedlings of the genus Solieria are recovered, and the seedling supplementing is carried out on the area with low coverage, so that the seed inoculation density and coverage are maintained. The area with low coverage, i.e. the area where the seedlings are scattered on the fixed seedling net 2, and the area where the inoculation density is not 1-1.5 kg/m 2.
In any embodiment of the present invention, in step S40: the illumination intensity of the cultivation is 90-150 mu mol multiplied by m -2×s-1. Algae with an illumination intensity below 90 mu mol×m -2×s-1 of the genus Solieria grow slowly, and algae with an illumination intensity above 150 mu mol×m -2×s-1 of the genus Solieria cause damage and turn yellow.
In any embodiment of the present invention, in step S20, the cultivation temperature is 25 to 30 ℃. The algae rot and loss can be caused by the too high or too low cultivation temperature, and especially the algae death in a large area is easily caused by the long-term temperature lower than 18 ℃.
In any embodiment of the present invention, in step S20, the cultivation salinity is 26 to 32. The algae body is rotten when the salinity of the culture is too high or too low, and the algae body is rotten when the salinity is lower than 20 for a long time, so that the algae body is rotten seriously. In the case of continuous rainy days, measures for stopping supplementing seawater are generally taken, and seawater is supplemented after the salinity of the seawater rises after the weather is stable.
In some embodiments of the present invention, in step S40: harvesting after 28-45 days of cultivation of the seaweed of the genus Solieria; when the seaweed of the genus Solieria is harvested, the harvesting length of the seaweed of the genus Solieria is 4-6 cm. Namely, the harvesting is carried out from the sprouting of the young plants to the height of 4-6 cm, and the aim of harvesting is to maintain the higher growth speed of the seaweed of the genus Solieria. When the height of the seaweed of the genus Solieria exceeds 6cm, its growth rate becomes slow. In order to increase the cultivation yield, two rounds of cultivation are performed after harvesting.
In addition, the algae of the genus Solieria is inoculated into the harvest for 28-45 days, the condition of the impurity algae pollution is required to be continuously checked, the early treatment principle is followed, the pollution of the diatom and the silk algae is the most serious, and the algae is washed for 5min for removing the diatom according to the cultivation condition. The method has poor fresh water treatment effect on some silk algae and miscellaneous algae, and performs manual treatment. And cleaning the dirt, removing the rotten algae and flushing the algae in real time. The pond 200 should be cleaned and re-inoculated as early as possible for the cultivation pond with serious algae contamination so as to avoid wasting cultivation time.
In some embodiments of the present invention, in step S50, the treatment of the aquaculture water includes the steps of:
s510, discharging part of the culture water for animal culture, and supplementing sand-filtered fresh seawater into the rest of the culture water to obtain mixed seawater;
S520, precipitating, sterilizing and micro-filtering the mixed seawater, and then entering the culture pond 200 to be used as circulating culture water of the seaweed of the genus Solieria.
The algae of the genus Solieria can effectively absorb nitrogen and phosphorus in the eutrophic water body in the cultivation process, so that the water quality of the cultivation water for cultivating the algae of the genus Solieria is good, and the method is suitable for cultivating animals or aquatic products.
The water storage sedimentation tank 300 is provided with a pump body 400, a water outlet of the pump body 400 is connected with a water inlet of the filtering device 600, the pump body 400 is used for continuously pumping seawater which is subjected to sand filtration, sedimentation and ultraviolet disinfection in the water storage sedimentation tank 300 into the filtering device 600, and the seawater enters the culture tank 200 again after micro-filtration;
A second water inlet and a water outlet are arranged in the water storage sedimentation tank 300, and the second water inlet is used for inputting external sand filtered seawater; the water outlet is used for outputting part of the culture water, and the output culture water can be used for animal or aquatic product culture; the external sand-filtered seawater is mixed with the rest of the cultivation water in the cultivation system to form mixed seawater, and the mixed seawater enters the cultivation pond 200 after precipitation, disinfection and microfiltration to be used as the circulating cultivation water of the seaweed of the genus Solanum. The input quantity of the external sand filtration seawater is equal to the output quantity of the culture water. The process is circularly reciprocated, the external sand filtered seawater is continuously input, the cultivation water of the seaweed of the genus Solieria is continuously output, the purpose of the cultivation water is increased, and the green comprehensive cultivation system is formed.
The following description of the embodiments of the present invention will be presented in further detail with reference to the examples, which should be understood as being merely illustrative of the present invention and not limiting.
Example 1
A land-based industrial cultivation method of seaweed of the genus Solieria comprises the following steps:
Fig. 1 shows an algae cultivation bed 100, comprising a bracket 1 and a fixed seedling net 2, wherein the bracket 1 comprises a frame 11 and 4 support tubes 12, and 4 support tubes 12 are connected with the bottom of the bracket 1; the frame 11 is 41 m long 32pvc pipes, and is respectively connected into a rectangular frame by 4 three-dimensional four-way pipes; the fixed seedling net 2 is 2 pieces of hard plastic net with the size of 1 multiplied by 1m, the diameter of the net holes is controlled to be 1cm, one net piece is used for laying seaweed seedlings, the other Zhang Wangpian is covered on the net piece for laying seaweed seedlings, and the 2 net pieces are fixed on the cultivation frame 11 through a binding belt with the length of 20cm, so that the effect of inoculating fixed seedling is achieved; the support pipes 12 are 4 32pvc pipes with the length of 30cm, the length of the support pipes 12 can be adjusted according to the water level of the culture pond, and the support pipes 12 are connected with the frame 11 through three-dimensional four through holes; one more hole of the three-dimensional four-way joint of the whole device can freely enter seawater and can sink into water, so that the support tube 12 can stably sink into the bottom of the water, and further the seaweed culture bed 100 can stably stand in the water.
FIG. 2 shows a land-based industrial cultivation system for seaweed of the genus Solieria. As shown in fig. 2, the built cultivation system infrastructure mainly comprises 6 cultivation ponds 200 of 4×5×1.5m 3, a water storage sedimentation pond 300 of 40m 3, a water pump 400 of 3000w, a micro-filter filtering device 600, an ultraviolet lamp disinfection and sterilization device 500 and a pipeline system 700. The culture pond 200 is an indoor factory cement pond, can normally pass in and out seawater, and has natural light irradiation. Wherein the water storage sedimentation tank 300 and the ultraviolet lamp are used for carrying out sedimentation and disinfection treatment on the cultivation wastewater, the water discharge pipe, the water pump 400 and the water inlet pipe are respectively used for pumping out the circulating seawater in the cultivation tank and injecting the circulating seawater, the water supplementing pipe and the micro-filter are used for supplementing fresh seawater and filtering the circulating seawater, and the whole pipeline 700 realizes seawater circulation.
S10, sterilizing the inoculation materials, the culture device, the culture pond 200 and the like with high-concentration bleaching powder or chlorine tablets. The fresh seawater is subjected to sand filtration treatment, sand-filtered seawater is injected into the water storage sedimentation tank 300 for sedimentation, the ultraviolet lamp disinfection and sterilization device 500 is turned on for disinfection, meanwhile, the water pump 400 is turned on, so that the sand-filtered seawater is pumped into the micro-filter filtering device 600 from the water storage sedimentation tank 300 for filtration, and then pumped into the culture tank 200, and the seawater in the culture tank 200 overflows fully and directly flows into the water storage sedimentation tank 300, so that the whole cultured seawater is circularly flowing seawater. In addition, due to the water purifying effect of the water seaweed of the peacock feather, the circulating water for the cultivation of the peacock feather is directly supplied to the animal cultivation.
S20, the picture before inoculation of the culture pond 200 is shown in fig. 3. Selecting young Solieria pseudolaris with bright color, complete rhizome and no decay, and soaking in fresh water for 20s. The soaked seedlings of the peaceful peashrubs are inoculated and planted on the double-layer seedling-fixing net 2 of 3 seaweed culture beds 100 with the thickness of 0.3 multiplied by 0.3m 2 by using the binding belt, and 100g of seedlings are inoculated on each seaweed culture bed 100. The whole seaweed culture bed 100 after the seed of the peaceful feather is inoculated and planted is orderly placed in the same culture pond in sequence, obtaining the first inoculated seaweed seedlings of the Solieria.
S30, the next day after the inoculation of the peacock feather, recovering scattered and floating algae seeds, supplementing seedlings in areas with low coverage, maintaining seed inoculation density and coverage to obtain inoculated seaweed seedling of Solieria;
S40, adjusting the illumination intensity of the cultivation environment of the peacock feather to 90 mu mol multiplied by m -2×s-1, adjusting the growth temperature to 25 ℃, adjusting the growth salinity to 26, and starting to cultivate the peacock feather.
The peacock feather stands out of the surface 4 of the fixed seedling net 2 when cm, the protruding part is manually sheared, and retaining algae species between the two layers of nets. The peacock feather is harvested on the 28 th day of cultivation, and the weight is 1348g. The specific harvest conditions are shown in table 1.
TABLE 1 harvesting conditions of the peaceful Solieria
After harvesting the peacock feather (fig. 4), the raising pond 200 is left with peacock feather seedlings and water for raising.
The weight of the initial inoculated Taiping Solieria is 110g in 3 seaweed cultivation beds with the density of 0.3 multiplied by 0.3m 2, and the total weight is 330g. After 28 days, the peaceful peacock feather is treated the vegetables are picked up and weighed up, the weights of the peacock feather picked up by the 3 seaweed cultivation beds are 445g, 478g and 425g respectively, the total weight is 1348g, the growth speed reaches 135 g/(D multiplied by m 2), and the weight gain rate is 3.08%.
S50, discharging part of the culture water for animal culture, and supplementing sand-filtered fresh seawater into the rest of the culture water to obtain mixed seawater; and (3) precipitating, sterilizing and micro-filtering the mixed seawater, then feeding the mixed seawater into a culture pond 200 to serve as circulating culture water for the seaweed of the genus Solieria, continuously culturing the Solieria pseudolaris to obtain the Solieria pseudolaris, and harvesting the Solieria pseudolaris to obtain the Solieria pseudolaris seedlings and the culture water.
S60, repeating the step S50.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, but various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
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