It is another year of water freezing, winter is coming again, once upon a time, natural disasters caused the development of the Xia Kingdom to come to a standstill, resulting in the destruction of countless tribes on the earth, heavy losses, now, the impact of natural disasters has almost completely dissipated, the last winter has lasted less than ninety days, this winter is expected to be similar to the winter of the normal year before the natural disaster.

In the ninth year of the summer calendar, the "First Five-Year Development Plan of the Xia Kingdom" was officially carried out, and this year is the thirteenth year of the summer calendar, which is the last year of the five-year plan.

Now that winter is coming, Xia has entered a short dormant period, it can be said that the arrival of winter represents the official end of the "First Five-Year Development Plan of Xia Kingdom", and before the arrival of winter, the situation of all the departments and cities of Xia Kingdom has been sent to the palace of Zhongjing City and sent to Su Yan.

"The First Five-Year Development Plan of Xia Kingdom" is over, and soon, the "Second Five-Year Development Plan of Xia Kingdom" will come, Su Yan will set new big goals for Xia Guo according to the situation of Xia Guo, and then let Xia Guo develop according to this big goal until this big goal is reached or even surpassed.

Population

According to statistics in the early spring of the ninth year of the Xia calendar, there were more than 159,000 people in the Xia Kingdom, including more than 28,100 adult male nationals, more than 39,800 adult female nationals, more than 1,900 servants, and more than 3,300 slaves, and the total population of the Xia Kingdom was more than 165,200.

In the past five years, the population of Xia has skyrocketed by encouraging people to have children, acquiring population through foreign wars, and attracting other tribes to join.

The population statistics at the beginning of next year will be carried out at the end of this autumn, in which the adult citizens of the next year will be added to the adult national data, and then the number of newborns will be increased according to the proportion, and the population data of the Xia country at the end of the thirteenth year of the summer calendar will be obtained.

At that time, the number of citizens of Xia Kingdom will reach 290,000, of which there will be more than 46,000 adult male citizens, more than 75,000 adult female citizens, and 19,000 slaves, and the total population of Xia Kingdom will be as high as 310,000.

This is only an estimate, but the real data will definitely not differ much from this number.

In the past five years, the number of Xia citizens and the total population have almost doubled, with an average annual increase of more than 26,000 people and an average annual increase of more than 29,000 people

Not counting the population obtained by Xia from the outside world, the natural population growth of Xia Kingdom alone is a very terrifying data, in the eighth year of the Xia calendar, the number of newborns in Xia Kingdom was just over 10,000 that year, and only a few people reached the number of 5,000 national adults.

This year, the number of newborns in Xia will reach 20,000, and more than 4,400 male nationals and more than 4,900 female nationals will reach adulthood.

The annual increase in the number of newborns represents the continuous increase in the population base of the Xia Kingdom, and the increase in the number of adult citizens every year represents the rapid increase in the strength of the Xia Kingdom, both of which are very important to the Xia Kingdom.

With a large enough population base, Xia will be the most powerful human force on the earth, and there will be no human being who is the opponent of Xia Guo, and it will also increase Xia Guo's resistance to natural disasters.

If the Xia Kingdom was very weak, with only a thousand population, perhaps in that natural disaster, the Xia Kingdom would have been destroyed.

But the natural disaster is that the Xia Kingdom is strong enough to survive the natural disaster, and not many clansmen have died because of the natural disaster, and after the natural disaster, the Xia Kingdom has recovered to rapid development.

In five years, the population of Xia Kingdom almost doubled beyond Su Yan's expectations, and when formulating the "First Five-Year Development Plan of Xia Kingdom", Su Yan thought that after the end of five years, Xia Kingdom could have a population of 270,000, which was too much, but he did not expect it to exceed 300,000.

A population of 300,000 would probably be an unimaginable number for other human forces on this land, but for Su Yan, the Xia Kingdom, with a population of only 300,000, was too weak and weak, and population development was still the most important task of the Xia Kingdom.

In the "Second Five-Year Development Plan of the Xia Kingdom", Su Yan decided to set a big goal for the Xia State, 500,000, from the current 310,000 population to 500,000 in five years, an average annual increase of 38,000 people.

With the population growth rate in the first five years, Xia Guo is capable of achieving the new goal.

Su Yan recorded the big goal of 500,000 people, anyway, the goal was set, Xia Guo tried his best to complete this goal, even if it was not completed, it didn't matter, as long as he tried his best.

There are still many tribes living outside the territory of the Xia Kingdom, and there are also a large number of tribes on the new route, and in the next five years, with enough C-type boats, the Xia Kingdom will inevitably do something to the tribes on the new route, plus the nomadic tribes of the grasslands, the Xia Kingdom has enough ways to increase the population.

Moreover, with the huge population base of Xia Kingdom, the population increases by 38,000 every year, and more than half of them are newborns, and Xia Kingdom can completely digest them quickly.

As the population increases, the number of cities will also increase, and Su Yan originally planned to have an ordinary city for every 5,000 people, and the walls didn't need to be very tall, just to resist wild beasts and other tribes that happened to bump into.

At present, there are 41 cities in the Xia Kingdom, but this year there will be 310,000 people living in the place, with an average population of more than 7,500 per city.

In particular, the storage city is just an ordinary city scale, the population is actually more than 10,000, fortunately this year the storage city has begun to expand, and it is expected that the expansion will end in the next year, when the upper limit of the population that the storage city can accommodate will be increased from 10,000 to 50,000, and the area of the storage city will be four times the size of the original.

After the completion of the expansion, the city will replace Zhongjing City as the largest city in the Xia Kingdom, because it is located on the edge of the grassland, and still has a wall as high as two zhang.

The population of the city is large, the population of the capital is more, as the capital of the Xia Kingdom, the population of the capital has exceeded 19,000, next year, the city will start the expansion plan, the current city as the inner city, the expansion area of the city is the outer city of the city, and the population of the city will be increased to 50,000.

Special cities like Zhongjing City and Chucheng can accommodate a maximum of 50,000 people, and ordinary cities can accommodate a maximum of 20,000 people, which is an upper limit set by Su Yan, even if it is a capital city like Zhongjing, it cannot break through this upper limit, once a city has too many people, it will not be self-sufficient in food, and it will take a lot of manpower and material resources to transport food alone.

Even if the expansion is completed, the long-term population will not exceed 30,000, after all, the geographical location of the city is special, the cavalry troops are stationed in the city, often go deep into the grassland to fight the nomadic tribes, will bring back a large number of people, most of the population will live in the city temporarily, and then send to other cities.

In the first three years of the Second Five-Year Plan, three cities were adjacent to the river and two cities were far away from the river, and in the last two years, two cities were adjacent to the river and three cities were far away from the river.

Moving away from the river was also an important plan for the Xia Kingdom.

Science and technology

The most important technology in the science and technology chapter is shipbuilding technology, most of the cities in the Xia country are adjacent to the river, you can rely on ships to communicate and transport people and a large number of goods, more ships can speed up the development of the Xia country, and the Xia country can also rely on boats to communicate with other tribes adjacent to the river.

Before the start of the First Five-Year Plan, Xia Guo had only two shipyards, Yuancheng Shipyard and Zhoucheng Shipyard, with a total of 48 Type A ships and eight Type B ships sailing in the river.

At the end of the First Five-Year Plan, Xia added a new Licheng shipyard, and at present, Xia has a total of 67 A-type ships, 18 B-type ships, and one C-type ship sailing in the river.

In five years, 19 A-type ships, 10 B-type ships, and one C-type ship were added, and in terms of the total carrying capacity of all ships, in five years, the total carrying capacity of ships in Xia Kingdom increased by a little more than 60%, and compared with the population that has almost doubled, the increase in the number of ships seems to be much slower.

Of course, it can't be completely calculated in terms of carrying capacity, after all, the ships of the Xia Kingdom are either the latest version or the slightly revised version, and the speed is more than the ordinary version, counting the time of the reduction in speed, maybe the speed of ship development will exceed the speed of population development.

In this way, it seems that the development of the shipbuilding industry has reached the goal set by Su Yan, but with the current forty-one cities of the Xia Kingdom, there are still not enough ships.

Thinking of this, Su Yan wrote on a piece of paper that a shipyard would be built in the "Second Five-Year Development Plan of Xia Kingdom", so that Xia Kingdom would have four shipyards, and at the same time make every effort to build the fastest C-type ships, and the construction of other new ships or improved versions of old ships can be a little later.

Once the Xia Kingdom has enough C-type ships, there will be no problem in conquering the tribes on the new route.

In the science and technology chapter, shipbuilding technology is followed by ironmaking technology, compass, gunpowder, glass, hydraulic machine tools, and other technologies.

In the rapid development of iron-making technology, the iron output of Xia Kingdom has exceeded the output of copper, but because the iron-making technology has not been improved to a high enough level, the iron weapons cast or forged cannot be compared with the copper weapons, and there are no iron weapons to equip the army, but the iron farm tools have replaced the copper farm tools.

This was not enough, Su Yan needed to replace copper weapons with iron weapons, hoping that in the next five years, iron-making technology would be improved to a high enough level.

As for the compass, gunpowder, glass, and hydraulic machine tools, these technologies have already appeared in the Xia Kingdom, and the compass can help the cavalry troops fighting in the grassland and the expedition team far away from the city to identify the direction, and with the cooperation of the map, it is more difficult to calculate the location and distance simply.

Although it takes a lot of time to make a compass, there is no need for a compass to be used, and two compasses are enough for a team.

The output of gunpowder was limited by potassium nitrate, but the gunpowder produced was enough for the Xia Kingdom, which was mainly used in building cities, building roads, and opening mines.

The effect of black powder is mainly determined by the ratio of various raw materials, the Ministry of Industry has studied a variety of gunpowder with different raw material ratios, but the upper limit of the power of black powder is there, but it is impossible for Xia Guo to make better gunpowder or explosives than black powder in a short period of time, even firearms, Xia Guo is at most research and research, at least ten years of internal army.

In terms of glass technology, the technology of making large pieces of glass has been solved, and it is possible to make telescopes out of glass, even if the magnification of the telescope is not high, but it is a very good start, as long as the craftsmen of the Ministry of Industry are given enough time, they will definitely make telescopes with high magnification.

The telescope is definitely an artifact on the battlefield, especially for cavalry units, which can detect the enemy from a distance and quickly make the most appropriate arrangements.

At the same time, for the trade fleet of the Ministry of Commerce, it will be much more convenient to have a telescope, driving on the Yellow River, and the tribes that have come into contact with it are distributed on both sides of the Yellow River, the Yellow River is so wide that you can't see the situation on both sides of the river from the ship, so you can only let the fleet get closer to the riverbank.

If you have a telescope with a higher magnification, you can directly use the telescope to look at the riverbank to see if there is a white flag flying, and the fleet can make a quick decision instead of changing course frequently.

The telescope can be made, but the use of glass to make mirrors is a problem, Su Yan handed over the problem of making mirrors to the Ministry of Industry, which has no clue in a short time, hoping to solve the problem of making mirrors in the next five years.

Hydraulic machine tools or hydraulic machinery, in the Xia country is not a strange word, water mill, hydraulic bellows, water mills, water wheels and other equipment that can be seen in the Xia country are hydraulic equipment, through them, Xia people can save a lot of effort, the efficiency of related labor is also greatly improved.

For example, it is processed into powder by stone milling, from manpower to animal power, to water power, and in the future, steam power.

Steam power undoubtedly requires the least conditions, but with the technological level of this era, there is still a long way to go to build a steam engine, so before steam power, water power is the best choice.

Forging machines, casting machines, stamping machines, cutting machines, press brakes and other machinery, if they can be driven by water power, will definitely greatly promote the scientific and technological development of Xia Kingdom, and even accelerate the development of ironmaking technology.

There are water mills, hydraulic bellows, water mills, water wheels and these hydraulic equipment as a reference, the Ministry of Engineering personnel have manufactured hydraulic forging machines and hydraulic casting machines, but they are only manufactured, and the hydraulic machinery manufactured has not yet reached the level of application, and the Ministry of Engineering personnel need to further improve, and it is expected that in the next five years, Su Yan will be able to see more hydraulic machinery on the riverbank.

Ironmaking technology, hydraulic machinery, and glass technology are still the key projects in the science and technology chapter of the Second Five-Year Development Plan of Xia Kingdom, and there are relatively few new technologies that need to be studied.

Agriculture

For the development of agriculture, after the end of this year's technology, Su Yan has already learned in detail, planting the latest high-yield crop seeds, the four main crops of the Xia Kingdom, millet, soybean, wheat, and rice per mu yield reached 205 catties, 178 catties, 143 catties, and 185 catties respectively, which is a great increase compared with five years ago.

The main thing is that over the years, the personnel of the Ministry of Agriculture have accumulated rich planting experience and already know how to cultivate the required crop varieties.