CN102132670A - Direct sprouting process in nori spatfall screen seedling-culturing chamber - Google Patents

Abstract

The invention discloses a direct sprouting process in a nori spatfall screen seedling-culturing chamber. The nori seedling which is cultured by using the direct sprouting process in the nori spatfall screen seedling-culturing chamber has the advantages that the cells are steady and strong, the delayed effect of algal filament layers is sufficient, the nori is cultured in a seedling-culturing pool so the nori is free from being influenced by the red tide and small tide, the survival rate of nori seedling is high, and the output of nori is greatly increased.

Description

Laver spatfall lace curtaining seedling rearing room is directly sent out seedling technology

Technical field

The present invention relates to a main laver seedling raising process, relate in particular to a main laver spatfall lace curtaining seedling rearing room and directly send out seedling technology.

Background technology

Existing laver spatfall lace curtaining seedling rearing room is directly sent out seedling technology, comprises the steps: to pluck in (1), March ripe laver, puts into refrigerator-freezer (15 ℃ of following chilled storages) with plucking the laver that comes; (2), at the bottom of 4 April, thaw, the laver that will thaw is put into container, stirs to allow ripe carpospore be dispersed in the water, is sprayed onto on the shell in the nursery pond by microscopic counting; (3), half-light handled three days, after three days, progressively give out light, in conjunction with the real-time adjusting illumination of Changes in weather according to the illumination needs; (4), to mid or late September, with water pump bath the laver seedling on the shell is washed on the lace curtaining, at last lace curtaining is transported to the sea and puts in the seawater and grow.Shortcoming is: be prone to red tide, seawater is vulnerable to pollute, and makes the death of laver seedling; The little flood time of tide, the sea with no wind, no waves, current are not smooth, sediment deposition encases lace curtaining and makes laver seedling death by suffocation easily on lace curtaining; Ocean temperature is higher, easily long brave tongue on the lace curtaining, and brave tongue can't grow the laver seedling, reduces the survival rate of laver seedling, reduces laver output.

Summary of the invention

Technical problem to be solved by this invention is: provide a kind of laver spatfall lace curtaining seedling rearing room that can reduce laver seedling lethality the nurturing period in growth directly to send out seedling technology.

In order to solve the problems of the technologies described above, technical scheme of the present invention is: laver spatfall lace curtaining seedling rearing room is directly sent out seedling technology, comprises the steps:

(1), pluck ripe laver March, puts into refrigerator-freezer (15 ℃ of following chilled storages) with plucking the laver that comes;

(2), at the bottom of 4 April, thaw, the laver that will thaw is put into container, stirs to allow ripe carpospore be dispersed in the water, is sprayed onto on the shell in the nursery pond by microscopic counting;

(3), half-light handled three days, after three days, progressively give out light, in conjunction with the in good time adjusting illumination of Changes in weather according to the illumination needs;

(4), to mid or late September, with the water pump bath laver seedling on the shell is washed on the lace curtaining, lace curtaining was cultivated in nursery pond 10-15 days, the water in the nursery pond is through the water of half-light precipitation (seawater advances the water that the sedimentation basin precipitation obtained more than 10 days), do not have the precipitation free from admixture in the water, pH value is normal;

(5), 3-5 days takes out airing once with lace curtaining, the temperature of airing is generally at 23 ℃-26 ℃, the time of each airing is 3-5 hour, every day in the nursery pond 1 3-1 2 water change;

(6), after 15 days, it is freezing that lace curtaining is put into freezer, cryogenic temperature is at-20 ℃-30 ℃, cooling time is 15-20 days;

(7), to early November, ocean temperature is transported to the sea with lace curtaining and puts in the seawater and grow below 18 ℃ the time.

Advantage of the present invention is: utilize above-mentioned laver spatfall lace curtaining seedling rearing room directly to send out the laver seed that seedling technology cultivates, cell is surely strong, algal filament layer reserve strength foot, in nursery pond, cultivate, not influenced by red tide and little flood tide, laver survival rate of young height has improved laver output greatly.

Embodiment

Describe particular content of the present invention in detail below by specific embodiment.

Laver spatfall lace curtaining seedling rearing room is directly sent out seedling technology, comprises the steps:

(1), pluck ripe laver March, puts into refrigerator-freezer (15 ℃ of following chilled storages) with plucking the laver that comes;

(2), at the bottom of 4 April, thaw, the laver that will thaw is put into container, stirs to allow ripe carpospore be dispersed in the water, is sprayed onto on the shell in the nursery pond by microscopic counting;

(3), half-light handled three days, after three days, progressively give out light, in conjunction with the in good time adjusting illumination of Changes in weather according to the illumination needs;

(4), to mid or late September, with the water pump bath laver seedling on the shell is washed on the lace curtaining, lace curtaining was cultivated in nursery pond 10-15 days, the water in the nursery pond is through the water of half-light precipitation (seawater advances the water that the sedimentation basin precipitation obtained more than 10 days), do not have the precipitation free from admixture in the water, pH value is normal;

(5), 3-5 days takes out airing once with lace curtaining, the temperature of airing is generally at 23 ℃-26 ℃, the time of each airing is 3-5 hour, every day in the nursery pond 1 3-1 2 water change;

(6), after 15 days, it is freezing that lace curtaining is put into freezer, cryogenic temperature is at-20 ℃-30 ℃, cooling time is 15-20 days;

(7), to early November, ocean temperature is transported to the sea with lace curtaining and puts in the seawater and grow below 18 ℃ the time.

Utilize above-mentioned laver spatfall lace curtaining seedling rearing room directly to send out the laver seed that seedling technology cultivates, cell is surely strong, and algal filament layer reserve strength foot is cultivated in nursery pond, not influenced by red tide and little flood tide, and laver survival rate of young height has improved laver output greatly.

Claims (1)

1. laver spatfall lace curtaining seedling rearing room is directly sent out seedling technology, it is characterized in that: comprise the steps:

(1), pluck ripe laver March, puts into refrigerator-freezer (15 ℃ of following chilled storages) with plucking the laver that comes;

(2), at the bottom of 4 April, thaw, the laver that will thaw is put into container, stirs to allow ripe carpospore be dispersed in the water, is sprayed onto on the shell in the nursery pond by microscopic counting;

(3), half-light handled three days, after three days, progressively give out light, in conjunction with the in good time adjusting illumination of Changes in weather according to the illumination needs;

(4), to mid or late September, with the water pump bath laver seedling on the shell is washed on the lace curtaining, lace curtaining was cultivated in nursery pond 10-15 days, the water in the nursery pond is through the water of half-light precipitation (seawater advances the water that the sedimentation basin precipitation obtained more than 10 days), do not have the precipitation free from admixture in the water, pH value is normal;

(5), 3-5 days takes out airing once with lace curtaining, the temperature of airing is generally at 23 ℃-26 ℃, the time of each airing is 3-5 hour, every day in the nursery pond 1 3-1 2 water change;

(6), after 15 days, it is freezing that lace curtaining is put into freezer, cryogenic temperature is at-20 ℃-30 ℃, cooling time is 15-20 days;

(7), to early November, ocean temperature is transported to the sea with lace curtaining and puts in the seawater and grow below 18 ℃ the time.