The roar of the plane sounded, and Qin Shiou stood on a steep coastal wall and looked back. As the sound became louder and louder, the figure of the tractor in the air appeared from behind the woods.

After the plane appeared, two more agricultural aircraft appeared. Bill helped him contact. The establishment of a marine ranch is not simpler than a grassland ranch. In such a large area of ​​sea, relying on one plane alone will make the work efficiency too slow.

Sowing seaweed has officially begun, but now the plane is not spraying seaweed seeds.

Although every time you buy seaweed, you use "seeds" to measure and name it, it is not a seed in the traditional sense. Seaweed does not produce seeds, but breeds by dividing spores. The aircraft releases vibrant spores.

Qin Shiou had seen agricultural companies cultivating seaweed spores, which were all based on plexiglass plates or plastic films as spore attachment bases. After collecting spores, they were cultivated indoors by inclined flow water. They were cultured to the blastospores and then peeled off. Only then could they go into the sea to sow seeds.

Because he was eager to achieve results, the seaweed seeds he bought this time were not microspores, but micro-mature bodies that were cultivated in the farm. This type was cultured indoors with a rope as a substrate. After being cultivated, the juvenile sporophytes grew to 1 to 2 cm.

The agricultural plane flew over, and Qin Shiou Dan held up a transparent umbrella and blocked it in front of him. A group of fishermen shouted and looked for something to block him. If they couldn't find something, they turned around and turned to the sea.

After the plane flew to the sea, the drop port opened and a white curtain appeared. The fluttering white powder fell down with thick smoke, and after falling into the water, the sea water became more turbid.

These things are lime, so they have to hide.

The first batch of seaweed to be released is giant algae. The spore bodies of this thing are very delicate and delicious. They are one of the favorite foods of sea urchins, starfish, and various benthic shellfish.

The two purposes of lime are: one is to change the pH and alkalinity of seawater and inhibit the activity of these organisms in the sea that can eat giant algae; the other is to play a bactericidal effect. The inner bay cannot enter live water, and the metabolic rate of seawater inside is too slow, and fish, shrimp, seaweed cannot be taken away after death and rotting. It accumulates in these places to feed a large amount of bacteria.

Seaweeds are experts in seawater purification, but their spore bodies are very sensitive. Why is this bay very suitable for seaweed growth, but not much seaweed growing on the seabed? The reason is that there are too many bacteria and many spore bodies cannot survive.

The spores of giant algae have strong cold resistance, so they can be placed at will in winter and spring. Now this season is the most suitable for the release of giant algae spores. According to time, the fastest growth time is exactly summer. At that time, their needs for sunshine and nutrients reached their peak, and the weather in summer can just meet their growth needs.

The three planes traveled back and forth twice, and the lime powder released covered a sea area of ​​about hundreds of square kilometers. This sea area is the deepest sea area. Apart from the 6 large aircraft, giant algae can grow in waters with a depth of hundreds of meters.

After adding lime powder, the cultivated spore bodies must be put on. Of course, this is not just like sowing seeds in 6, just sprinkle these spore bodies.

To some extent, giant algae are a bit like plants such as loofahs and grapes. They need to climb onto something to grow faster. If they float in the sea, they will probably not know where to float after a few big waves...

What the agricultural aircraft put down are submerged rafts, which are a triangular and parapet-shaped farming rafts composed of plastic racks and plastic ropes. They contain a fast-growing matrix of the macrophyllum spores, which can provide the spores with the energy required for initial growth and can also become a climbing substance for mature macrophyllums.

China uses the submerged rope method, that is, with plastic ropes as substrates attached with giant algae and juvenile algae, and fixes both ends of the rope to the seabed to maintain a certain distance between the rope and the seabed. This method is simple and can be used to adjust the size of transparency to cultivate the water layer.

Since giant algae can be used to extract algae, make colorful plastics and fiberboards, and can also be used as raw materials for the pharmaceutical industry. Therefore, in today's poor fishery aquaculture environment, a new marine economic model of giant algae breeding has emerged in Canada, the United States and Mexico.

China has done a good job in this regard. Seafood scientists successfully introduced giant algae from Mexico as early as 1978. In recent years, many farms in the southern coastal areas have also cultivated giant algae, and the benefits are considerable.

Qin Shiou has read the information and China has performed well in the giant algae breeding industry. Domestic oceanographers have developed a set of giant algae submarine raft breeding technology.

In this technology, the breeding raft is used to connect the raft to the raft plant to sink the floating raft to the water to breed giant algae. Now some breeding farms in Canada and the United States are using this technology.

But he couldn't use such a technique. Although this technique is very good, because giant algae are more sensitive to light and the sun's illumination is different every day. In this way, controlling the submerged rafts by frequently stretching and connecting ropes can keep them in the best water layer for breeding, best absorbing sunlight and growing faster.

This technology requires a large number of workers. Daqin Fishery cannot hire so many workers to adjust the location of the submersible rafts, and it is not a professional seaweed farm. After the environment of this fishery is improved, he can still raise fish.

After successfully surviving a sea area, giant algae can be changed into a seabed forest, covering the entire sea area, and creating a natural high-quality fishing ground, which is very attractive to some precious seafood, such as tuna, sea cucumber, abalone, etc.

The raft he bought usually sinks 3 to 7 meters underwater after falling into the water. In early spring, the sunlight intake of this water layer is more appropriate.

After a while, as the giant algae grows, they will need more and more sunlight. At this time, there is no need to control it manually. There are airbags in the leaves of the giant algae. When they grow up, they will slowly float up with a diving raft and adjust their own water layer to grow.

After the rafts were put down one by one, Qin Shiou waved his hand, and the fishermen shouted and went to the harvest quotation, and then drove towards the sea, and they were about to work.

The next thing to do is to provide climbing frames for the giant algae. As mentioned earlier, the leaves of the giant algae will float on the water surface to absorb sunlight after they mature, but the buoyancy is limited after all, so it is better to provide a climbing frame.

In addition, the climbing frame has a more important role, which is to collect the landing points of giant algae. In the future, these giant algae will be collected to make fish feed, so that it is convenient to collect them with landing points.

Qin Shiou had never done this job. In the past, he stocked giant algae in the Daqin fishing ground, so he didn't have to provide climbing frames at all. Anyway, those seaweeds did not need to be collected. They could grow slowly and survive at will.

The purpose is different, it is not possible in the No. 2 fishing ground. Giant algae have become economic products and they have to mature in the shortest time. (To be continued.)

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Chapter completed!