The problem in Hancheng is phosphate fertilizer. [Full text reading] Several people thought for a long time. The most easily available natural food is animal bones. The Council of Agriculture has been using leftover fish bones and fish residue from seafood processing plants to fertilize the fields, and occasionally there are animal bones. But now we need to improve the old land. Where can we get so many bones?
Applying plant ash can also supplement scale fertilizer. But there is still a problem involved: insufficient quantity.
A group of people thought hard for a long time and finally decided to call Luo Feng.
Luo Shi is now working in the Social Department of the Political Defense Bureau, working on illegal materials every day, and living a fulfilling life. However, he continues to act as a living dictionary every day after work.
Wu Nanhai's question is: How to make phosphate fertilizer without phosphate rock?
"This is easy." Luo Feng said. "Boiled plant ash"
"I know this, and I also know the animal bones. But I want to fertilize the land that is severely deficient in phosphorus."
"Go to the metallurgical department and ask for steel slag." Luo Shi said, "I remember they use a small converter, right? It's just right." He continued: "Steel slag is mixed with stone curtains to get a kind of soil phosphate fertilizer.
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The slag-making process in converter steelmaking uses sand to create acidic slag to replace the phosphorus in pig iron. Therefore, converter slag contains a considerable amount of phosphorus.
Nanhai quickly called the Metallurgical Department.
Ji Wusheng told him that most of the steel slag accumulated after steelmaking had been used as paving materials, and there were only a few tons left in the steel plant.
"A few tons are enough." Fashilu said. "Let's make do with it first. If it's not enough, put in a lot of plant ash, and ask the students in the national school to start a movement to recycle the plant ash. Then put in a lot of mud.
"I wonder if the Foreign Trade Commission later took care of Nanbao?"
The brown butterflies and peat produced by Nanbao's coal mines are the main source of fertilizer for Lingao in modern time and space. Naturally, the time traveler will not let it go. However, Nanbao is already close to Li District. Moreover, it is a hilly area. The remote exploration team went there several times and felt that the investment in mining was too great and the distance was too far. It was almost like opening a separate base. It is best to let the locals mine and then purchase and expropriate the land.
But so far, this matter has not been done. The locals have little interest in mining this dark coal. Even if the Cross Group is willing to purchase it, no one is willing to mine and transport it.
After Wu Nanhai reported the need for lignite as fertilizer to the executive committee, Gao De decided to collect it through compulsory apportionment without further delay. So they sent people to call the liaison officers from the villages near Nanbao, and gave them the task of mining and transporting several "big catties" of lignite to Bairen in each village. In return, their grain dues could be discounted with lignite and peat. compensation.
"Thank you so much." Wu Nanhai was so confused that he burst into tears, "In fact, it would be better to have phosphate rock."
"I have no place to look for this." Dude said helplessly, "There is no such thing locally."
"How about sailing to Yulingang for mining." Wu Nanhai said. He saw in the bulletin that there is phosphate rock near Tiandu.
Ma Qianxu shook his head: "The phosphate rock in Yulin is not on the seaside. It has to go deep into the area for more than 60 kilometers. There are no roads. Without equipment, it will not be transported back within a month."
"That's it." Wu Nanhai looked disappointed, "Can you think of a way to send a small-scale mining team to collect about ten tons?"
"This." Ma Qianzhu thought for a moment. The Committee of Agriculture was not the only one who needed phosphorus. The Ministry of Chemical Industry and the Weapons Group had all made proposals to him to negotiate for ore. It will take half a year for everyone to be patient and wait for the opening of fields. Other than that, the food issue is not easy to deal with.
"I would like to ask the Ministry of Resources if there is an economical and quick way to use it." Ma Qianxu shook the phone on the table:
"Switchboard, I'm the planning committee member and I'm in charge of Di Chou's office."
"The quickest solution is to go to Dongsha Island and collect struvite." The person who answered the call from the remote exploration team was their secretary Zhao Xue. "Looking at the resource map, this is not far from Dongsha, and there are mountains of struvite on the island. , it’s also easy to open-pit mine. It’s enough to transport a boat back.”
"It would be better if there were struvite." Wu Nanhai said. Struvite is not only rich in phosphorus, but also contains nitrogen and potassium, making it a natural compound fertilizer. This time even potassium fertilizer is saved.
"Okay, let's dispatch the navy." Ma Qianzhu immediately agreed, "Invite the People's Commissar of the Navy Chen Haiyang to come. Let's plan the ships to dispatch."
Wu Nanhai was simply flattered. This efficiency and courage made him feel much better than having to "discuss and discuss" everything.
It was decided that the Zhenhai would go out to dig out guano because time was running out. It would take more than ten days to send a sailboat, so a hybrid boat would be much more convenient. After all, tack sailing is a technical job. Only the Qian brothers from North America are relatively experienced in traveling through the sea. They have at least experienced small sailing.
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The Zhenhai commanded by Lin Chuanqing quickly found Dongsha Island according to the route map.
The island is about 10,000 kilometers wide, with very flat terrain and no peaks. There are many coconut trees. A large number of seabirds are constantly flying over the island, flying up and down on the masts of Zhenhai. From time to time, they return The sailors on deck left some "gifts" behind.
"Hell!" Lin Chuanqing cursed and spat. Xie's hat has been baptized, and Wang Min is somewhat superstitious. I feel bad about this thing.
“With so many birds, there must be a lot of struvite.
Bai Guoshi said with great interest.
"To hell with your struvite." Lin Chuanqing put on a straw hat, "Why did I end up on such a task!"
The route of Dongsha Island. Lin Chuanqing, who was born as a scumbag and had been a smuggler for many years, knew where it was without a navigational chart. However, he had never been near this place in the past. There was Taiwan's 6th Marine Corps on it. It would be troublesome to check if anything happened. If you have a bad temper, it would be even more off-putting to think that you are engaging in espionage activities and reward you with a bunch of bullets.
"The water is as deep as a meter, and it's just a mile away!" the sailor reported loudly.
"Minus, put down the boat. Measure the water!" Lin Chuanqing ordered. So a few sailors put down the boat and rowed towards the island.
Bai Guoshi said: "There is a lagoon on Dongsha Island. Can't we just drive the boat into it?"
"It's too shallow." Lin Chuanqing shook his fork. Although he had not been to Dongsha Island, he had heard people say that the lagoon on Dongsha Island was very shallow. "It's less than 1 meter when the tide is low. It's shallow when you get in."
The entire Dongsha Island is crescent-shaped. The area is about one square kilometer, and there is a lagoon on the west side of the island. The lagoon is less than a meter deep at low tide, and its width at the outlet is no more than a meter. It has little value as a coral island cobalt site. Because the opening of the lagoon greatly leads to the exchange of water, which leads to the long-term accumulation of organic debris at the bottom of the lake; overall, it is similar to a coastal swamp ecosystem, but completely different from the clear water and coral-rich lagoons on common coral islands. . Several tourists who originally wanted to enjoy the scenery of tropical coral islands were disappointed.
The vessel was piloted by a water measuring vessel. Go around the west side of the island. Dongsha Island is actually the only one in a series of atolls that is above water. The diameter of the entire Dongbi Atoll is about 10 kilometers, and ships can sail into this lagoon to anchor. However, due to the lack of coral reef dams exposed above the water, its value as a harbor shelter is limited.
"Stop the engine! Lower the cobalt!" Lin Chuanqing maneuvered the ship as close to the island shore as possible, and did not lower the cobalt until the front keel was almost touching the bottom.
"Assemble the pontoon!" Lin Chuanqing continued to issue orders.
Excavation of struvite requires moving heavy objects, and there is no lagoon on Dongsha Island for large ships to berth, so it is too inefficient to travel by small boats. So Zhenhai brought a group of floating bridges. Be prepared to improvise between the beach and the boat.
"Is there anyone on the island? Do you want everyone to bring weapons?" Bai Guoshi asked Lin Chuanqing. He put his pistol in a waterproof holster.
"There shouldn't be a summer or a fishing season and Wang Min wouldn't come here. But there are a lot of sharks here." Lin Chuanqing raised a loudspeaker and shouted: "Everyone, be careful, there are a lot of sharks in the sea! Don't fall into the water. Get injured immediately. Get back on the boat and don’t pee in the sea! Don’t panic when you see a shark.”
The lagoon of Dongsha Island itself is rich in organic debris at the bottom. When the lake water flows out to the nearby sea, it creates a feeding inducement, attracting creatures such as sharks that prey on their prey through the water flow to the vicinity of the lagoon. So the density of sharks here is particularly high. In addition to sharks, there are many ferocious predatory fish in this lagoon, and their aggressiveness and lethality cannot be underestimated.
Two more boats were lowered and the sailors unhooked the pontoons from the hull. Start connecting with chains. Lin Chuanqing ordered the sailors on the ship to be armed and on guard on both sides of the ship. Each boat is also equipped with a dedicated shark guard, who carries a harpoon and wears chain arm armor and gloves made of thin iron rings on his arms.
There are indeed many sharks in the lagoon. And there are many kinds. You can clearly see these ocean kings swimming happily in the clear water. Everyone is nervous. The floating trestle took twice as long as usual to build due to the deformation of the movements due to nervousness. The nearly 100-meter-long pontoon undulates on the sea, and shark fins can be seen emerging from the water all around. The faces of the first batch of people who passed the pontoon to board the boat turned pale. Several members of the group who originally planned to go to the island to see it simply stopped going.
Because Bai Guoshi was responsible for guiding the mining of struvite, he had to bite the bullet and get off the boat. He held his breath and walked across the pontoon to the island. This place is no different from the general profile of Dongsha Island that he learned in geography.
The terrain of the entire island is slightly higher in the northeast. The southwest is slightly lower and the central part is low-lying, with an average altitude of about five or six meters. The tallest ones are over ten meters high in the northeast. The entire island is high on all sides and low in the middle. The central lowland is a shallow lagoon, accounting for about one-third of the island, with the mouth of the lake opening to the west. ! ~!
