Indoor rapid multiplication cultivation system for seaweed Gracilaria lemaneiformis

A technology for expanding and cultivating seaweed, applied in seaweed cultivation, cultivation, plant cultivation, etc., to achieve the effect of promoting growth and optimizing the growth environment

Inactive Publication Date: 2017-01-04
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of materials needed for scientific research of asparagus in all weathers, especially in summer, the present invention provides an indoor rapid expansio

Method used

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  • Indoor rapid multiplication cultivation system for seaweed Gracilaria lemaneiformis
  • Indoor rapid multiplication cultivation system for seaweed Gracilaria lemaneiformis
  • Indoor rapid multiplication cultivation system for seaweed Gracilaria lemaneiformis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Place 1 kg of Asparagus in the incubator 2, and use the rope-hanging culture interface 10 to cultivate. The temperature of the thermostat 4 is set to 25℃, the salinity is 33‰, and the light intensity is 30μmol photons m -2 s -1 , The light-dark cycle is 14:10, when the incubator 2 outlet pipe 5 control valve 8 valve is fully open (large flow rate), the total inorganic nitrogen concentration is 150μmol / L, the nitrogen to phosphorus ratio is 13, and the three nitrogen (NO 3 - -N, NH 4 + -N, NO 2 - -N) Medium NH 4 + In the enriched culture medium with a higher ratio of -N, after one week of culture, the weight gain is 2.1 kg, and the relative growth rate (RGR) is 10%, which is higher than the relative growth rate of 7% under field conditions.

Embodiment 2

[0029] 0.5 kg of Asparagus is placed in incubator 2 and cultivated with fine mesh holder culture interface 12. The temperature of the thermostat 4 is set to 15℃, the salinity is 30‰, and the light intensity is 40μmol photons m -2 s -1 , The light-dark cycle is 12:12, when the incubator 2 outlet pipe 5 control valve 8 valve 2 / 3 open (medium flow rate), the total inorganic nitrogen concentration is 100μmol / L, the nitrogen-phosphorus ratio is 10, and the three nitrogen (NO 3 - -N, NH 4 + -N, NO 2 - -N) Medium NH 4 + In the enriched culture medium with a higher ratio of -N, after one week of culture, the weight gain is 0.9 kg, and the relative growth rate (RGR) is 8.5%, which is higher than the relative growth rate of 7% under field conditions.

Embodiment 3

[0031] 1.5 kg of Asparagus is placed in incubator 2, cultured with coarse net support culture interface 11. The temperature of the thermostat 4 is set to 20℃, the salinity is 31‰, and the light intensity is 60μmol photons m -2 s -1 , The light-dark cycle is 16:8, the total inorganic nitrogen concentration is 200μmol / L when the valve is 1 / 2 open (small flow rate), the ratio of nitrogen to phosphorus is 15, and the three nitrogen (NO 3 - -N, NH 4 + -N, NO 2 - -N) Medium NH 4 + In the enriched culture medium with a higher ratio of -N, the weight increased to 3.3 kg after one week of culture, and the relative growth rate (RGR) was 9%, which was higher than the relative growth rate of 7% under field conditions.

[0032] The examples show that asparagus is more suitable for low and medium temperature and low light environment. Its optimum growth temperature and salinity are 25℃ and 30‰ respectively, and the optimum light intensity range is 40μmol photons m -2 s -1 ~60mol photons m -2 s -1...

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Abstract

The invention discloses an indoor rapid multiplication cultivation system for seaweed Gracilaria lemaneiformis, comprising a multi-stair support; a plurality of cultivation boxes are arranged on the multi-stair support side by side from bottom to top, a water inlet of each top cultivation box is connected with a heat changer through a water delivery pipe, an outflow pipe arranged on the upper portion of each cultivation box is extended down to the bottom of one lower cultivation box, an outflow pipe of each bottom cultivation box is connected sequentially with an inflating device, a circulating pump and the heat exchanger, and a circulating water loop is formed; support cross rods are fitted with solar lamps each above one cultivation box. The stereoscopic multi-tier multi-passage connected cultivation box structure is utilized, a flow of water is controlled to flow out from bottom to top, waves of natural sea areas are simulated, space and light are maximally utilized, and the true natural growth state of Gracilaria lemaneiformis is simulated; different cultivation interfaces can be provided, the growth environment is optimized, the system is suitable for multiplication and cultivation of Gracilaria lemaneiformis under different biomasses, and all-weather indoor large-scale multiplication cultivation of Gracilaria lemaneiformis is thus achieved.

Description

Technical field [0001] The invention belongs to the technical field of the utilization of marine resources, and relates to an indoor seaweed asparagus cultivating system, in particular to a three-dimensional layered multi-channel type large seaweed asparagus cultivating system with controllable culture conditions. Background technique [0002] Increased concentration of nitrogen and phosphorus in the aquaculture area has become a widespread environmental problem in the aquaculture industry in my country. Excessive concentrations of nitrogen and phosphorus are key pollutants that characterize the eutrophication of water bodies. Intensive aquaculture in the marine aquaculture industry has caused obvious negative impacts on the environment of the aquaculture waters, such as increased eutrophication in the waters, accumulation of nutrients, and frequent red tides. In recent years, research on the bioremediation of large seaweed Gracilaria lemaneiformis under different cultivation co...

Claims

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Application Information

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IPC IPC(8): A01G33/00A01G7/04
CPCA01G7/045A01G33/00Y02A40/80
Inventor 叶长鹏刘洪赵建刚
Owner JINAN UNIVERSITY
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