Under the premise of the rapid increase in non-staple food and grain, the number of meat, eggs and milk per capita is increasing, which may not be very obvious for adults, but for teenagers, the effect is very obvious.

As long as it is a teenager within the growth period, in the popularization of this, at least, strength and height, and many other indicators have a huge improvement, wisdom and talent, it is not so obvious, but overall, it is also an improvement, the extent of this improvement, in terms of a person, at most, is to improve the person's physique, but for the entire Dingjun, a huge population, a little time, is also quite large.

This is the important role of milk and eggs, even for Zhao Xin's policy of benefiting the people, the officials who have a little whisper, after seeing this effect, do not say anything, although they can not understand the quality of the human body, but the height and strength and other aspects have improved, which also means that young people will grow into adults in the future, their physical fitness is very good.

Physical fitness is not all, but a stronger body will be excellent in all aspects, especially in manual labor, workers are already the basis of the economy of the navy, and the improvement of the quality of workers is not without a small supplement to the navy.

From the perspective of food security, the planting of 700 million mu of corn, even under the premise of the current output, is enough to ensure the entire food security, from the point of view of eating grain, a single corn can support the food needs of the entire population of the Dinghai Navy, which is very important for food security.

Not to mention, the value of feed brought by corn, even if it is under 700 million acres of land, the feed cannot be fully utilized, but only the part of the utilization is enough for all the meat consumption of the entire Dinghai Army, which is additional for food security and has a greater effect.

Meat contains more calories and can replace more food, which is a basic thing, and in terms of physical fitness, the improvement is more obvious, which is very large, and the quality of the whole country is quite obvious.

Corn in the Dinghai, has a huge effect, just 2 years, replaced a lot of grains, become the third largest food in addition to rice noodles, although is not the mainstream, not very suitable for Chinese to eat, but the entire diet is expanding.

This is North America, the Indians, they have created a lot of plants for the advantages of planting, in history, the most important plants, now the three major crops in North America, only found one, and two have not been found, in 2 years, although the input of corn is not small, the change in the country is great, but in the Americas, the action is greater.

On the other side of the ocean, although it is far away from the Dinghai Navy, because the relationship between the Americas is too important, after the discovery of corn, the Dinghai Navy not only did not reduce its investment, but also increased its investment.

Without a suitable shipping lane, it would take a reconnaissance to get from the Dinghai Navy to the Americas, and it would take clippers and experienced captains, but once the shipping lane was determined, it would be much simpler.

In the course of several years of exploration, countless captains and explorers explored the route from the north to the Americas, although there was Zhao Xin's guidance, but they also made great efforts to finally find this way, and at the same time, they also explored the long Aleutian Islands.

For a long time, although the efficiency is not very high, but the comparison of the surrounding exploration is clear, and in the same way, because of the relationship of exploration, a series of bases have been established along the way, and these bases, some large, some small, densely packed, are scattered throughout the Aleutian Islands.

In the beginning, in order to ensure the efficiency of exploration, large and small islands were used as the base, large bases of large islands were used as the base, and then small and medium-sized islands were circled.

This is a very advantageous method for exploration, large bases, can support small and medium-sized bases, some supplies and ships, on small islands, maybe not much storage, only large islands can.

This was for the expedition, to provide a large fleet of supplies for a long time, and to have a lot of support for the construction of ports and bases in the future, and it was necessary to have a large enough island.

But in the future, if you want to ensure the North American route, you don't have to do this, although these large key islands will not be abandoned, and it has cost so much money and such a huge amount of time to build such a huge port base, and it is impossible to give up easily.

However, the route and the exploration are two different things, in the exploration of the North American route, almost the Aleutian Islands, most of the islands have been detected, perhaps on the exploration, some islands are suitable, can be used as the core of the exploration, but in the waterway, they may not be suitable.

The reason why the waterway is called a waterway is that the first choice is safety, and if the waterway is full of various reefs and dangers, there is no need for this waterway to exist.

On the other hand, the waterway must also be after considering various factors, the nearest road, after taking into account the safety, must be the closest, near, which also represents the saving of time, the most important factor in the voyage is the distance, the distance can be beyond all the scope of existence.

Of course, in the future, there are many plans for the adjustment of the shipping channel, for example, ocean currents and wind direction, without the premise of the popularization of ship and machine power, wind is the most important aspect.

In the ocean, there is a monsoon, winter and summer, the direction of the monsoon is different, plus the ocean currents and the like, in fact, in different seasons, the course should be slightly different, which needs to be adjusted.

If it were replaced by the European method of nautical discovery, it would be very good to be able to form an ordinary shipping route, but it could take 30 or even 50 years to form an efficient one.

However, for the Dinghai Navy, step by step steady and steady, every step has been recorded, and the manpower, material and financial resources used are far above the Western colonizers, so that not only is it efficient, but the final waterway is also very perfect, winter and summer, forming two completely different waterways, and at the same time, for ocean currents and the like, it is also satisfied.

Nearly 100 islands, after a series of selections, also selected the best ones, the distance between each island, about 220 kilometers, which is a day distance for clippers, even for Spanish sailboats, it is also two days, so in this era, even in the depths of the Pacific Ocean, so the safety factor is also very high.

It is precisely because of this waterway that the terrible human and material resources of the Dinghai Navy can be perfectly played, which used to be in the exploration fleet and consumed a lot of materials, but now, there is no need for continuous investment, and even the ports of the nodes only need a little investment, under this premise, a large amount of materials are continuously transported along the waterway of thousands of miles to the Americas.

In the three years, from the discovery of the American continent, from the Aleutian Peninsula as the center, the Dinghai Navy built a total of 18 ports along the coast, almost every 200 to 250 kilometers, a port will be built, which happens to be a clipper ship, about a day's voyage, the distance and communication have been done to the extreme.

In the midst of such adjustments, countless resources were invested in the Americas, although most of them could be obtained locally, but the arrival of machinery, personnel, and other things promoted the tremendous development of the region, and a series of buildings that were not inferior to those of the Americas began to appear in the Americas, providing great support for the military and civilians of the given navy in the Americas.

The Chinese themselves are a miracle-creating race, and to a certain extent, if the American Railway did not have the emergence of Chinese laborers, perhaps, its completion would have been pushed backwards for many years.

In this era, Zhao Xinhe surpassed the machinery of this era and opened up this characteristic of China, nearly a thousand years in advance, and China once again started a huge construction process.

In the Americas, especially on the shores of the Pacific Ocean, the presence of the Rocky Mountains not only cut the Americas into two parts, but also caused the rupture of the kingdoms, which were several powerful Indian kingdoms in the interior of the American continent, but these kingdoms were not in North America.

In fact, even without the emergence of Western colonists, there was no such powerful Middle Kingdom as China in the Americas, and they were mainly tribes or tribal alliances.

Compared with Asia, the Americas have the same places, but also different places, and the same thing is that the same northern hemisphere, with similar climates, but also different places.

That is, in the Americas, the area of the grasslands is not large, and the northern part of the Americas is not as large as Asia, although there are nearly 2 million square kilometers of grasslands, but in the Americas, there are no nomadic peoples.

Nomads have always been the great enemies of the agrarian peoples, and if there were nomads in the north of the Americas, perhaps in the process of fighting each other, the development of the North American countries, or the progress in the war, would be further than now, not as it is now, only in Central America, there will be empires.

It's also funny to say, the Indians, in agriculture and animal husbandry, have a lot of advantages, but they don't know how to raise horses, perhaps, in ancient America, there are horses, there are some research results, the Indians in North America, from the Yin Shang past, in ancient times, the North Pole was not so cold, and the two continents are connected together.

In such a situation, there must be something in Asia and America, and most of the animals are on both sides.

However, the Indians are excellent in many aspects, but they do not know how to raise horses, and the rich environment of the Americas has also made many northern Indians live by hunting, and these few remaining horses have disappeared in nature.

There is no such a strong animal as the horse, and there is no other animal that can replace the horse, there are many bison in North America, but the bison cannot be ridden, maybe some people have tried, but these people have ended in death.

Nomadism, the reason why it is nomadic is that it needs to swim, if there are no horses, just rely on their feet, nomads have no basis for birth, in the grassland, because of the harsh environment, are small tribes, hundreds, dozens of people exist, hunting for a living.

In North America and Canada, and even in the northern part of the United States, there are many Indian tribes, and there are quite a few of them, but at the level of countries that have not been formed, at most they are tribes, or tribal alliances, these tribal alliances, although the overall strength is not small, but on a very large land, in later generations, the United States and Canada, the two countries together, have an area of 20 million square kilometers.

In such a large area, there is no way to combine into a powerful force without enough horses, let alone their location in the middle and near the Atlantic Ocean, blocked by the Rocky Mountains, which is almost equal to zero threat to the Dinghai Navy.

The most important thing is that on this side of the Rocky Mountains, near the Pacific Ocean, although the land is good, it is very narrow, and because of the obstruction of the Rocky Mountains, there is less communication with the interior, so even if the Dinghai Navy builds such a large port group, it has not been affected.

After all, coming from thousands of miles away, although the Ding Navy has the ability to sweep, it has no ability to govern, if it is not for Zhao Xin's request, get all kinds of products from the Americas, as long as the fleet is explored, a few people are sent over, and this settlement is maintained at the beginning.

Since coming to the Americas, after a very simple investigation, the Dinghai Navy has understood that the Americas are very huge, and the total area may be several times larger than the area controlled by the Dinghai Navy now.

Now, the population of the Dinghai Navy is quite a lot, but one-third of them are dolls who have no ability to get rid of the existence of their parents, more than 100 million people, full of calculations, that is, about 70 million, if you deduct the elderly, women, and the real prime, that is, more than 20 million, at this time, it is not realistic to send so many people over.

In such a situation, the Navy chose to gradually extend southward along the waters of the Pacific Ocean to ensure the distance between each port, that is, in the flight clipper ship for a day or so, 200 to 250 kilometers, choose the more suitable as a port, and determine as a port, 18 ports, almost from the Aleutian Peninsula, gradually extending more than 4,500 kilometers to the south, and soon from the vicinity of Canadian waters, gradually coming into contact with the southern United States, very natural, came into contact with the Mayan Empire, the largest force in North America.