CN103081795B - Energy-saving seaweed seedling cultivation method - Google Patents

Energy-saving seaweed seedling cultivation method Download PDF

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Publication number
CN103081795B
CN103081795B CN201310001682.3A CN201310001682A CN103081795B CN 103081795 B CN103081795 B CN 103081795B CN 201310001682 A CN201310001682 A CN 201310001682A CN 103081795 B CN103081795 B CN 103081795B
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seedling
water
nursery pond
pond
controlled
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CN103081795A (en
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孙长彬
刘启顺
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RONGCHENG LIJIANG AQUATIC CO Ltd
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RONGCHENG LIJIANG AQUATIC CO Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management

Abstract

The invention belongs to the technical field of seawater seedling cultivation and provides an energy-saving seaweed seedling cultivation method so as to solve the problems that energy consumption is large and seedling cultivation cost is high in the process of current seaweed seedling cultivation. The energy-saving seaweed seedling cultivation method includes the following steps that a seedling cultivation room is built, seaweed seedlings are collected, seedling beds enter a seedling cultivation pool, water is controlled in a circulation mode, water temperature is controlled, room temperature is adjusted, and seedling seed is moved out of the pool. By means of measures of delaying time of seedling collection, increasing the seedling cultivation temperature, improving a water circulation system and a structure of the seedling cultivation room, and the like, the technical purpose of lowering seedling cultivation cost is achieved.

Description

Energy-saving seedling cultivation method for sea-tangle
Technical field
The invention belongs to seawater seed rearing technical field, be specifically related to a kind of energy-saving seedling cultivation method for sea-tangle that can significantly reduce seedling cost.
Background technology
Laminaria culture is the most common algal culture kind in northern China marine site, and kelp seedling cultivation is the basic guarantee that laminaria culture is produced.The key factor of kelp seedling cultivation has several as follows: 1, the low temperature properties of water for larval nursing, in the seawater below 10 ℃, carry out Kelp seeding cultivation, and therefore when seedling growing in summer, need to make water at low temperature by the refrigeration plant seawater of growing seedlings; 2, indoor light modulation.The growth of kelp seedling will be controlled at the scope of setting, between seedling culturing vehicle, should obtain sufficient illumination, must make again the intensity of illumination can be adjusted, frosted glass or the glass steel tile for light transmissive material multiselect that at seedling rearing room top, use at present, light regulating curtain adopts bamboo curtain splint to carry out light modulation; 3, water body flow.In kelp seedling cultivation process, need to make water temperature control within the limits prescribed and flow all the time by water circulation system.And in aspect above-mentioned three, the low temperature properties of water for larval nursing and water body flow all need to expend a large amount of electric energy, indoor light modulation needs the renewal of material to replace.By statistics in recent years, on average cultivating 100,000,000 strain Kelp seedings needs consume electric power 12,000,000,000,000 kilowatt hours, and the average life cycle of light transmissive material that top, seedling rearing room workshop adopts is 3 years.Therefore that reduces that life cycle that electric energy in kelp seedling cultivation process expends, extends light transmissive material becomes that kelp seedling cultivation industry energy-saving lowers consumption mainly captures direction.
Summary of the invention
In order to overcome in current kelp seedling cultivation process, power consumption is large, the too high technical problem of seedling cost, the invention provides a kind of energy-saving seedling cultivation method for sea-tangle.
The technical solution used in the present invention is: energy-saving seedling cultivation method for sea-tangle, and the method comprises the steps: that seedling rearing room is built, sea-tangle is collected seedling, seedling curtain enters nursery pond, water body loop control, water temperature are controlled, room temperature regulates, seed goes out pond, it is characterized in that:
Described sea-tangle is collected seedling, and its time of collecting seedling is controlled at annual August 10 between August 20;
Described water body loop control comprises that the water circulation of growing seedlings is controlled and the collection utilization of waste water, the described water circulation control of growing seedlings refers to be sent in refrigeration groove cooling by seawater, cooled seawater enters tank, then adopt force (forcing) pump that the refrigerated sea water pressurization in tank is sent into nursery pond water inlet pipe the water body generation in nursery pond is flowed, the water body that nursery pond outlet pipe flows out flows automatically to continuation refrigeration in refrigeration groove through open sand filter; The collection utilization of described waste water refers to the waste water in nursery pond is first disposed in a underground tank, waste water and fresh seawater in underground tank realize heat exchange by heat exchanger fin, fresh seawater makes water temperature obtain preliminary entering again in aforesaid refrigeration groove after cooling by heat exchanger fin to freeze, and waste water in underground tank is discharged after heat exchanger fin heats up.
Described water temperature is controlled and is referred to that the water inlet mean temperature of seedling rearing room is controlled at 8.5 ℃, and water outlet mean temperature is controlled at below 10 ℃.
Described seedling rearing room is built the nursery pond setting comprising in roofing setting, light regulating curtain setting and seedling rearing room, and described roofing arranges and adopts hollow sunlight board as roofing, the sheet material that hollow sunlight board adopts PC, PET, PMMA or PP material to make; Described light regulating curtain adopts black nylon screen cloth; Described nursery pond setting is that several nursery ponds are horizontally disposed with as one group, a side at nursery pond is provided with return flume and feed pipe, each pond is respectively equipped with cleaning hose and is connected with feed pipe, head end nursery pond is provided with some water inlet pipes, end nursery pond is provided with outlet pipe, the floss hole of outlet pipe extends in return flume, on the pool wall of adjacent nursery pond, be provided with gate, by gate, make each nursery pond realize series connection, on each nursery pond both sides pool wall, seedling curtain standing groove is evenly set, at the bottom of the pond of each nursery pond, is respectively equipped with discharge of wastewater mouth.
Described water inlet pipe is consistent with the bottom land height of seedling curtain standing groove on the height of outlet pipe and pool wall.
Described nursery pond length is at 28-32m, and width is at 2.2-2.5m, the dark 15-18cm in pond.
It is to control by refrigeration plant that described room temperature is controlled, and among one day, two is low sooner or later for room temperature, and mean temperature is controlled at 15 ℃, and medium temperature is high, and mean temperature is controlled at 18 ℃.
The present invention collects seedling the time by delay, shortens growing-seedling period, changes the water body circulatory system, by waste water, the pre-refrigeration of fresh seawater has greatly been reduced to power consumption; By the reasonable setting to seedling rearing room, extended the replacement cycle of material, water body flow is more flexible, has saved seedling cost, has reduced being subject to not enough, the dead gametophyte of light, being out of shape the appearance of the phenomenons such as rotten and green rot disease of occurring in seedling raising process simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is traditional water circulation system flow chart.
Accompanying drawing 2 is water circulation system flow chart of the present invention.
Accompanying drawing 3 is nursery pond structural plan.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
The present embodiment is usingd actual conditions that Rongcheng City, Shandong Province clam river produces Co., Ltd's kelp seedling cultivation field as explanation.
In northern China, before and after annual June 25, kelp spore capsule starts to diffuse, therefore traditional sea-tangle time of collecting seedling carries out at the beginning of fixing on 7 months by the end of June more, from the seed of collecting seedling by the end of October, going out nursery pond like this need to be through about 120 day, whole cultivating process is to control growth substantially, especially illumination in early stage is pressed very lowly, and seedling is owing to being subject to light not enough, and dead gametophyte, to be out of shape the phenomenons such as rotten, green rot disease serious.By kelp spore capsule being formed to the analysis of rule, can know, the formation rule of kelp spore capsule is first concave surface, then convex surface, even same appearance, the time that different parts forms is not identical yet, thereby causes sporangial diffusing the time inconsistent, and sporangium is repeatedly constantly to diffuse, the time of diffusing is by being deferred to September by the end of June, therefore postpones the time of collecting seedling, to shorten growing-seedling period practical.The time of collecting seedling is subject to natural temperature and kind to be with two effects limit of ripe situation, the water temperature of the collecting seedling upper limit can not be over 23 ℃, kind is with ripe situation can diffuse in a large number spore with it and is as the criterion, and in northern China marine site, it is after August 20 that seawater reaches time of 23 ℃, therefore in seedling-cultivating method provided by the present invention, the time of collecting seedling is controlled at annual August 10 between August 20, can adopt completely and meet the sea tangle sporophyte of growing seedlings and requiring within this time period.By postponing sea-tangle, collect seedling the time, shortened the kelp seedling cultivation cycle, can save a large amount of human and material resources and electric energy and expend.
Following table is the changing condition that the 1968-2012 of the said firm sea-tangle summer sporelings (of laminaria) is cultivated the time.
As can be seen from the above table, along with the postponement of the time of collecting seedling, seedling raise period shortens on the contrary, and to shorten seedling raise period, 88.5 hundred million strains of 40 days, the quantity of growing seedlings are calculated, and economize on electricity 10121470 kilowatt hours can power cost saving 6172875 yuan, 69750 yuan of average every hundred million young plants economize on electricitys.
As shown in Figure 1, traditional water circulation system flow chart.
Tradition water circulation system is that fresh seawater is sent in refrigeration groove and freezed, cooled seawater enters tank, then adopt high-pressure pump that the seawater in tank is sent in nursery pond after pressure filtration, the water body that nursery pond delivery port flows out enters in back pool, and then adopts water pump that water is evacuated in refrigeration groove.By accompanying drawing, can be found out, in water body cyclic process, through twice water pump, extract, pressure filtration is wherein in totally enclosed filtering ponds, to pack sand into filter, sand thickness is at 50-60cm, seawater is to pass through by force through filtering ponds, resistance is very large, need to be equipped with high powered water pump and just can complete, and therefore traditional water circulation system expends a large amount of electric energy.
As shown in Figure 2, water circulation system flow chart provided by the invention.
Water circulation system of the present invention makes just fresh seawater send in refrigeration groove to freeze, cooled seawater enters tank, then adopt water pump that the seawater in tank is sent in nursery pond, the water body that nursery pond delivery port flows out again enters in refrigeration groove after open sand filter filters.
By water circulation system provided by the present invention and traditional water circulation system, relatively can find out, the present invention is adjusted to filtration link at the delivery port rear of nursery pond, filtration makes open sand filter into by traditional sealing filtering ponds, such water circulation cycle is pumped and is kept to once by twice traditional water pump, and water pump is without adopting high powered water pump, in this link, water circulation system of the present invention can be economized on electricity more than 40% with respect to traditional water circulation system.
As shown in Figure 2, water circulation system provided by the invention also comprises the middle and later periods discharge of wastewater processing of growing seedlings.
Because kelp seedling cultivation is intensive production, for guaranteeing growing up healthy and sound of seedling, seedling curtain needs scrub every day, also will scrub nursery pond weekly.The 100-200 side's low temperature seawater in nursery pond of need to draining every day middle and later periods of growing seedlings, and then supplement cooling fresh seawater.Due to seedling curtain, scrub and the water that washes away of nursery pond is all low temperature seawater, using above-mentioned low temperature seawater as waste water, directly drain and can cause the very large wasting of resources.For this problem, as shown in Figure 2, the waste water of nursery pond discharge enters underground tank, low temperature seawater in underground tank and fresh seawater are carried out heat exchange by heat exchanger, after heat exchange, wastewater temperature in underground tank can improve 5-6 ℃, the fresh seawater of sending into temperature after heat exchange 7-8 ℃ that can decline, waste water after intensification is directly discharged, and fresh seawater has been carried out pre-refrigeration, seawater after pre-refrigeration enters refrigeration in refrigeration groove again can save a large amount of power consumption of refrigerating, to utilize every day 200 side's low-temperature wastewaters to calculate, a growing-seedling period 60,000 kilowatt hours of can economizing on electricity.
As shown in Figure 3, nursery pond arrangement provided by the present invention.
Traditional nursery pond terrace-type structure, single pond length 9m, degree of depth 30cm, each nursery pond carries out separately water circulation, and flowing water stroke is short, and water consumption is large, and nursery pond is excessively dark, breeding screen is positioned at water surface below 8cm, and flowing of water body do not have souring to seedling curtain, and particularly seedling curtain bubble is many middle and later periods, rotten in vain for preventing that seedling curtain from occurring, have to increase people's hand swing seedling curtain and remove bubble, every day nearly 6 times, labour intensity is huge.
As shown in Figure 3, the present invention improves the layout of nursery pond, makes a plurality of nursery ponds 1 into planar structure, the long 28-32m in single pond, the wide 2.2-2.5m in pond, the dark 15-18cm in pond.Take in the present embodiment (1)-(6) number pond is arranged as one group, as shown in drawings, a side at nursery pond 1 is provided with feed pipe 2, each pond is respectively equipped with cleaning hose 3 and is connected with feed pipe 2, and (1) number pond is provided with some water inlet pipes 4, is 4 in this embodiment, in (6) number pond, be provided with outlet pipe 5, the floss hole of outlet pipe 5 extends in return flume 6, on the pool wall 7 of adjacent nursery pond, is provided with gate 8, is respectively equipped with discharge of wastewater mouth 9 at the bottom of the pond of each nursery pond.
As shown in Figure 3, while normally growing seedlings, the valve closing on the cleaning hose 3 of each nursery pond, the valve open on the outlet pipe 5 of the water inlet pipe 4 of (1) number nursery pond and (6) number nursery pond, the gate 8 on adjacent nursery pond pool wall 7 is opened.Low temperature seawater in tank shown in Fig. 2 is through being pumped to feed pipe 2, this low temperature seawater enters in nursery pond through the water inlet pipe 4 of (1) number nursery pond, because the gate 8 on adjacent nursery pond pool wall is opened, therefore each nursery pond is cascaded, the water of growing seedlings flows according to the direction of arrow shown in Fig. 3, finally by the outlet pipe 5 of crossing (6) number nursery pond, be disposed in return flume 6, the low temperature seawater in return flume 6 is back in refrigeration groove and continues to freeze through the open sand filter shown in Fig. 2.
As shown in Figure 3, when carrying out the flushing of seedling curtain, the low temperature seawater that nursery pond washes away or drain every day middle and later periods of growing seedlings in nursery pond is during as discharge of wastewater, close the water inlet pipe 4 of (1) number nursery pond and the outlet pipe 5 of (6) number nursery pond, open the discharge of wastewater mouth 9 of each nursery pond, gate 8 on adjacent nursery pond pool wall 7 is closed, make each nursery pond form separate space, 3 pairs of nursery ponds of cleaning hose of opening successively each nursery pond wash away or seedling curtain are scrubbed, wash away, the low temperature seawater of draining in nursery pond the water body after scrubbing or every day middle and later periods of growing seedlings is discharged by discharge of wastewater mouth 9 as waste water.As shown in Figure 2, the waste water of discharge of wastewater mouth 9 discharges enters underground tank, low temperature seawater in underground tank and fresh seawater are carried out heat exchange by heat exchanger, after heat exchange, waste water after intensification is directly discharged, and fresh seawater has been carried out pre-refrigeration, the seawater after pre-refrigeration enters refrigeration in refrigeration groove again can save a large amount of power consumption of refrigerating.
As shown in Figure 3, each nursery pond is connected by gate, by the first nursery pond central water supply, current are flowed out by last nursery pond outlet pipe after a plurality of nursery ponds, flowing water stroke strengthens, 6 nursery pond series connection of take in this embodiment are one group, and flowing water stroke, at 168-250m, reduces more than 50% with respect to traditional nursery pond total supply.
As shown in Figure 3, seedling curtain standing groove 10 is set on the both sides of nursery pond 1 pool wall 7, seedling curtain 11 passes through seedling curtain standing groove 10 across on the pool wall in nursery pond both sides.When water inlet pipe 4 is set with outlet pipe 5, water inlet pipe 4 is consistent with the bottom land height of the height of outlet pipe 5 and the seedling curtain standing groove on pool wall.In the present invention, the bottom land of seedling curtain standing groove is apart from nursery pond distance from bottom 7cm, and water inlet pipe 4 is arranged to apart from nursery pond bottom 7cm equally with the height of outlet pipe 5.Adopting the benefit arranging to be like this, is to flow on the surface of seedling curtain 11 during water body flow, and movable seedling body has reduced bubble, and the later stage does not need manually to carry pendulum seedling curtain, can reduce greatly artificial and labour intensity.
The water temperature of growing seedlings that seedling-cultivating method provided by the present invention adopts is that the water inlet mean temperature of seedling rearing room is controlled at 8.5 ℃, and water outlet mean temperature is controlled at below 10 ℃.This water temperature is controlled by refrigeration groove the room temperature of seawater refrigeration and seedling rearing room is controlled to regulate.
Traditional water temperature of growing seedlings is 7.5-8 ℃ while collecting seedling, and falls weekly afterwards 0.5 ℃, to being reduced to by the end of August 6-6.5 ℃, until seedling goes out pond the last week, just progressively water temperature is brought up to 8 ℃ of left and right.
Seedling-cultivating method provided by the present invention, water inlet mean temperature is 8.5 ℃ of left and right, water outlet mean temperature is no more than 10 ℃, two is low sooner or later among one day, to require room temperature, middle high, refrigeration machine can be interrupted unlatching, and night, refrigeration machine must not start, both can guarantee the stable of the interior water temperature of seedling rearing room, reduce again power consumption.The present invention carries out kelp seedling cultivation by grow seedlings 2 ℃ of water temperatures of raising; within 2010, statistics refrigeration machine is shut down 232 hours; be roughly equal to 9.7 days; within 2011, statistics refrigeration machine is shut down 563.5 hours; be roughly equal to 23 days 11.5 hours; within average day, shut down 7.9 hours, account for 33% of total number of days of growing seedlings, reduced by 1/3 power consumption.
Energy-conservation seedling-cultivating method provided by the invention also comprises the transformation to seedling rearing room.
Traditional seedling rearing room roofing adopts 5mm one side polished glass, due to easily broken, dangerous, after change 0.6-0.8mm glass steel tile into and substitute.Because transparent resin material substantial appreciation of prices , Mei ㎡ glass steel tile in recent years reaches 40 yuan, and only have 3 years normal service life, the 4th year dimmed because of aging yellowing, and light transmittance declines, and light modulation difficulty is large.Tradition adopts bamboo curtain splint with light regulating curtain, and bamboo curtain splint is configured in deck, and operating personnel need to go to roof to roll up one by one at any time according to Changes in weather, growth of seedling to put bamboo curtain splint, and operation is trouble very.
For above-mentioned situation, in technical scheme provided by the present invention, roofing adopts the hollow sunlight board of 4mm, the sheet material that hollow sunlight board adopts PC, PET, PMMA or PP material to make, this material Mei ㎡ only has 34 yuan, service life 6-8, with respect to glass, glass steel tile price, reduce, increase service life, can cost saving, and sunlight board adopts double layer hollow structure, and heat-proof quality is good, the Inlet and outlet water temperature difference of traditional material nursery pond is 2.5 ℃ of left and right, and the Inlet and outlet water temperature difference of employing sunlight board nursery pond only has 0.8-1 ℃.Light regulating curtain adopts black nylon screen cloth, while arranging, in the inside, roof at nursery pond top, two drag-lines are set, the two ends of black nylon screen cloth are supported on drag-line by slip ring, because black nylon scrim weight is light, operating personnel only need tear on ground the folding and unfolding that can realize light regulating curtain, with respect to traditional roof bamboo curtain splint as light regulating curtain, extend its service life, easy and simple to handle, reduced manually, reduced expense.
Seedling cultivation method for sea-tangle provided by the present invention by postponement collect seedling the time, improve the water temperature of growing seedlings, improve water body loop control, improve the measures such as structure of seedling rearing room, greatly reduced kelp seedling cultivation expense.The method is produced Co., Ltd's kelp seedling cultivation field by 2012 Rongcheng City, Nian Shandong Province clam river and is applied, its grow seedlings expense with scale, adopt the nursery comparable situation of traditional seedling-cultivating method as follows: traditional seedling-cultivating method 13000 curtains of growing seedlings, 1,700,000 yuan of total costs, 130 yuan of single curtain expenses.Rongcheng City clam river produces Co., Ltd's kelp seedling cultivation field 9100 curtains of growing seedlings, 870,000 yuan of total costs, and 95 yuan of single curtain expenses, seedling cost is grown seedlings and is reduced by 27% with respect to tradition.

Claims (4)

1. energy-saving seedling cultivation method for sea-tangle, the method comprises the steps: that seedling rearing room is built, sea-tangle is collected seedling, seedling curtain enters nursery pond, water body loop control, water temperature are controlled, room temperature regulates, seed goes out pond, it is characterized in that:
Described sea-tangle is collected seedling, and its time of collecting seedling is controlled at annual August 10 between August 20;
Described water body loop control comprises that the water circulation of growing seedlings is controlled and the collection utilization of waste water, the described water circulation control of growing seedlings refers to be sent in refrigeration groove cooling by seawater, cooled seawater enters tank, then adopt force (forcing) pump that the refrigerated sea water pressurization in tank is sent into nursery pond water inlet the water body generation in nursery pond is flowed, the water body that nursery pond delivery port flows out flows automatically to continuation refrigeration in refrigeration groove through open sand filter; The collection utilization of described waste water refers to the waste water in nursery pond is first disposed in a underground tank, waste water and fresh seawater in underground tank realize heat exchange by heat exchanger fin, fresh seawater makes water temperature obtain preliminary entering again in aforesaid refrigeration groove after cooling by heat exchanger fin to freeze, and waste water in underground tank is discharged after heat exchanger fin heats up; Described water temperature is controlled and is referred to that the water inlet mean temperature of seedling rearing room is controlled at 8.5 ℃, and water outlet mean temperature is controlled at below 10 ℃; Described seedling rearing room is built the nursery pond setting comprising in roofing setting, light regulating curtain setting and seedling rearing room, and described roofing arranges and adopts hollow sunlight board as roofing, the sheet material that hollow sunlight board adopts PC, PET, PMMA or PP material to make; Described light regulating curtain adopts black nylon screen cloth; Described nursery pond setting is that several nursery ponds are horizontally disposed with as one group, a side at nursery pond is provided with return flume and feed pipe, each pond is respectively equipped with cleaning hose and is connected with feed pipe, head end nursery pond is provided with some water inlet pipes, end nursery pond is provided with outlet pipe, the floss hole of outlet pipe extends in return flume, on the pool wall of adjacent nursery pond, be provided with gate, by gate, make each nursery pond realize series connection, on each nursery pond both sides pool wall, seedling curtain standing groove is evenly set, at the bottom of the pond of each nursery pond, is respectively equipped with discharge of wastewater mouth.
2. energy-saving seedling cultivation method for sea-tangle according to claim 1, is characterized in that: described water inlet pipe is consistent with the bottom land height of seedling curtain standing groove on the height of outlet pipe and pool wall.
3. energy-saving seedling cultivation method for sea-tangle according to claim 1, is characterized in that: described nursery pond length is at 28-32m, and width is at 2.2-2.5m, the dark 15-18cm in pond.
4. energy-saving seedling cultivation method for sea-tangle according to claim 1, it is characterized in that: it is to control by refrigeration plant that described room temperature is controlled, among one day, two is low sooner or later for room temperature, and mean temperature is controlled at 15 ℃, medium temperature is high, and mean temperature is controlled at 18 ℃.
CN201310001682.3A 2013-01-05 2013-01-05 Energy-saving seaweed seedling cultivation method Expired - Fee Related CN103081795B (en)

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JPH0630672A (en) * 1992-07-17 1994-02-08 Hakodate Seimo Sengu Kk Apparatus for intake of seawater
CN1302704C (en) * 2004-06-24 2007-03-07 山东东方海洋科技股份有限公司 Improved sea weeds seedling cultivation process
CN1302703C (en) * 2004-06-24 2007-03-07 山东东方海洋科技股份有限公司 Sea weeds seedling cultivation process using deep well seawater
CN1826882A (en) * 2006-03-08 2006-09-06 吕大伟 Method for reusing waste water of aquaculture
JP2009148217A (en) * 2007-12-21 2009-07-09 Iseki & Co Ltd Method for raising rush seedling
CN101822206B (en) * 2010-05-06 2011-12-21 山东海之宝海洋科技有限公司 Multi-stubble kelp seedling culture method
CN201919452U (en) * 2010-11-23 2011-08-10 盐城海瑞食品有限公司 Porphyra yezoensis combined-type phytotrone

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