Seeing Li Zhao who was deep in thought, everyone stopped talking and stared at Li Zhao, and Su Ya felt like she was a little fan girl. This is afraid of affecting Li Zhao's thinking, and Li Zhao has shocked everyone too much, let's talk about ecological agriculture, who would have thought that an earthworm would use the straw that was originally useless, and could also raise pigs, ducks, chickens, etc., after being shocked, they would often take Li Zhao's opinion as the mainstay.

Now to support the military reclamation farm, you need to consider the actual situation of the farm, you can't blindly say a project, otherwise it won't play its due role at all. Now the farm is so large, Li Zhao and they also took a rough look in the car when they came, the farm covers a lot of land, but it is actually unrealistic to reclaim more fields.

In the lakeside area, if all the fields are opened, then the heavy rain will wash the soil into the lake, so a lot of willow trees are planted along the lakeside to prevent the soil from rushing into the lake again, and this land is not large, only hundreds of acres. There are also some rocky beaches along the side of the mountain, and there are many warehouses built here near the office area, including granaries, agricultural machinery warehouses, and a maintenance workshop for the farm, I don't know how many of them.

On the other side of the lake, there are some places that are small hills, which are not suitable for reclamation of land, not to mention the use of machinery, but also full of stones, and that one is also more, accounting for 20% of the farm, it is estimated that there are, so it is said that there are 10,000 acres of land, but only four or five thousand acres of land are reclaimed for planting. These are all the land that can be cultivated except for the lake, and the rest of the buildings are either rocky beaches or rocky land.

After thinking about it for a few minutes, Li Zhao probably had an idea and began to introduce it. The first item given by Li Zhao is fish farming, there are more than 200 acres of lake, it is not a huge waste not to raise fish, you must know that Li Zhao has seen high-density fish farming after 60 years, and others can raise more than ten fish in a cubic meter of water. Although it can't reach the level of high density in the lake, it can reach the amount of others, which is also a big profit.

Many people should have seen this way of raising fish, mainly with a canvas fish pond, build a water cycle, do a good job of filtration, and oxygenate in the water, a fish pond of 100 square meters of water, the breeding personnel can be frenzied to put thousands of fish fry, as long as the feeding is proper, pest control in place, the basic profit of one or two yuan per catty of fish. However, the investment is not small, if you can't solve the problem of some materials, it is impossible to make a lot of money.

The fish farming project that Li Zhao chose for the farm is ready to imitate this model. Then Li Zhao introduced them to them: "In fact, we only need to know what fish need to survive, the first thing we need is water, we are not lacking, and the water quality is very good, you harvest 10,000 catties every year, and it has been proved that there is no problem with the water quality of fish farming here, and the yield is relatively low, which is caused by other reasons." ”

Li Zhao continued: "The second thing needed is oxygen, and only by ensuring that the dissolved oxygen in the water is sufficient, can the fish live well. You may not know that many of the main reasons for water stinkiness are that the dissolved oxygen in the water is not enough, and the dissolved oxygen in the water is too low, which will also cause a large area of fish to die. Before rain or when the weather is particularly hot, the phenomenon of fish floating heads is caused by insufficient dissolved oxygen in the water. ”

"The third is food, which is what we lack the most here, we have all seen it, our water here is very clear, there is no problem to drink it directly, and it is still living water. There are two main sources of food for fish, one is aquatic plants and algae, and the other is all kinds of aquatic insects, and the spring water that flows at this time is what is most lacking here. In this case, the fish have very little food, and they can't keep many fish, and the fish grow slowly. ”

"The fourth is to prevent pests and diseases. There are very few fish here, only tens of thousands of catties per year, which is basically two or three thousand fish, and the fish yield per mu is only more than 30 catties. Is there any statistics on the input-output ratio of fry on the farm? Or have you ever found dead fish on a regular basis? ”

At this time, Master Zhang replied: "There are not many fish fry put in, and before raising them, some soldiers said that this water is too thin to raise many fish, and we didn't let many fish fry be released." And the fish does grow very slowly, the initial batch of fry, it basically took two or three years to grow to three or four catties, we are also the main catch, and every year put a batch of fry. Dead fish are very rare, and they are rarely encountered. ”

When Li Zhao heard this, he also nodded with satisfaction, and then said: "Then we want to raise more fish is to solve the last three problems, the fish species here, I think it should be carp, grass carp, silver carp three kinds of main, now we can increase the number of grass carp and silver carp breeding, the goal is to put another 200,000 to 300,000 fish fry." ”

At this time, everyone was a little dumbfounded, this is really a lot, in fact, there are not many, sixty years later, in the previous life, others have made the feat of raising more than a dozen fish per cubic meter, if according to that ratio, it is not a matter of hundreds of thousands of fish, it is a matter of millions.

The proportion that Li Zhao is giving now is less than half a piece per cubic meter, which can definitely be raised, and this amount is definitely a waste of resources for sixty years to look at. But now it has not been practiced, and they don't dare to put too much at once. In order to reassure them, Li Zhao also had to come up with some methods to assist, after all, as long as there was a problem with the fish, it would soon die in pieces, and Li Zhao didn't dare to let them go directly without preparation.

Then Li Zhao said: "First of all, let's talk about oxygen, there is no oxygen in the water, and the fish will die quickly, so we must first prepare an oxygen device." The aeration device is very simple, one is an air pump, which can directly ventilate air into the water, which can increase the dissolved oxygen in the water. This can be used as a backup device when the fish has a large area of floating head to ensure that the fish will not have problems. ”

"The other can be changed with a non-powered pumping device, as long as the original outlet pipe is changed to a circle of spouts, you can add oxygen to the water like rain. Let's build three or four non-powered pumping devices per acre of water surface, and it is estimated that it will be enough, so that we can add oxygen to the water and complete it. ”

"We can try to raise it first, if the effect is good, we can continue to increase the breeding density, I estimate that we have more than 200 acres of water surface, can raise millions of fish. However, it is necessary to explore slowly in the future, which must be noted, once the capacity of the oxygenation device cannot keep up, the loss may be large. But I don't think it's a big problem. ”

"As for food, it's better to solve the problem, we can grow pasture, and the pasture is now planted with hundreds of acres of pasture, right? We can further expand, in fact, the pasture can not only feed cattle and sheep, in fact, pigs, chickens, ducks, and fish can also be fed. This is also the reason why I mainly choose grass carp, grass carp produces more excrement, which will inevitably make the water fertilized, so that it can provide more food for silver carp, so we are equivalent to feeding grass carp, and the water naturally raises silver carp. ”

"Forage is definitely the best raw material for feeding grass carp, as long as we add a part of the grain, add a part of the earthworms, and find a better formula, then the food problem will be solved, you must know that the yield of forage is very high. Our annual output here is better than ten tons, even if it is hay, it can produce several tons, right? ”

"I'll design a few machines for you in a while, mainly crushers, mixers, granulators, these machines are very simple, I'll draw a sketch for a while, and your maintenance personnel are estimated to be able to make it soon, mainly to use electricity, which is estimated to save a lot of time for processing materials."

"In this way, we can directly make these raw materials into pellets to feed the fish, and this is also one of my thoughts, if these pellets are well configured, it should be possible to feed pigs, chickens, and ducks, so it is likely to achieve a multi-purpose situation." Everyone couldn't help but nod when they heard this, which is equivalent to one more feed factory, and a lot of manpower can be arranged.

"You can also contact the university to study the formula, not only to have balanced nutrition, but also to prevent pests and diseases, I heard that you specialize in raising cattle, but also to feed the cattle with vitamins or something, these estimates should also be added, otherwise it is easy to have problems."

"In this way, the breeding can be basically integrated, a unified formula, not only can raise fish, but also pigs, chickens, ducks, we can set up a small processing plant, in the future breeding can also be much simpler, but also easier to promote. At present, most of the farms in the country are military farms, and your strength is much stronger than that in the rural areas, which is also suitable for promotion on farms like yours. Everyone nodded when they heard this, and at this time, the fact that these things introduced by Li Zhao are difficult to enter the countryside once electricity and motors are involved.