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Wakame cultivation technology
There are two methods for cultivation of Wakame artificial seedlings, one is low temperature seedling raising, the other is normal temperature seedling raising. Low-temperature seedling is the use of low-temperature cultivation of kelp seedlings to cultivate crony seedlings, the implementation of spore body crossing, this method of equipment investment, high cost, complex operation, generally no longer used. The nursery at room temperature is simple and easy. Only the nursery room, seawater sedimentation tank, filter tank, and applicator can be performed at room temperature. Nursery conditions 1) The nursery should be placed close to the coast where the seawater fluctuations can pump water, fresh water and away from the estuary. 2) The nursery room runs east and west, the skylight area is 1/3 of the roof, the side window area should occupy 1/3-1/4 of the wall, and there is a dimming setting. 3) Seedling nursery ponds can use kelp nursery belts with shallow slopes, and ordinary deep pools can also be used. 4) Sedimentation pond: 50% of the water for seedlings is raised, and the filter pond is about 1.5% of the nursery pond. 5) with seedlings: mainly made of red brown rope braided net curtain, but also useful polyethylene net curtain. Selection and stimulation of growing vegetables 1) Standard: The meat is thick, the leaves are large and soft, the color is dark brown or dark brown, and the spores have a prominent bulge and are rich in mucus. 2) Quantity: generally leave 10 sporophyll leaves per square meter of nursery pond, or 100 grams of mature spore leaves per 100 meters long seedlings. 3) Irritation: Often the overcast method is used. After the sea tea raised at sea is retrieved, rinse it with filtered seawater, and then hang the vegetables in a ventilated room, or place it on a clean straw mat without crushing it. Keep it in direct sunlight and dry it. Appropriate picking time When choosing the right picking time, the natural temperature of the seawater should be chosen to rise to 18-23 degrees, which is better from mid-June to mid-July. Processes to stimulate the growth of vegetables → → spores → scattered spores → spread seedling spores → grasp the density with the seedlings → indoor cultivation → indoor cultivation → adjust the temperature → control the light → appropriate fertilization → timely wash and change the water → seedlings book library fertilization wakame should be applied during nursery For nitrogen, phosphate fertilizer, gametophyte and sporophyte, the nitrogen and phosphorus contents in nursery water should reach NO3-N4PPm and PO4-P0.3PPm. After the formation of sporophyte in the middle of August, the concentration of nitrogen and phosphorus should reach NO3-NSPPm, PO4-P 0.4PPm. Fertilization is usually carried out after changing the water, and the fertilizer is generally evenly sprayed with 5% concentration.