Haicheng is not all engaged in agricultural development.

Although some crops are said to be relatively fast, the harvest in Haicheng is about a month later, but there is a faster one is the planting of pasture, and the growth rate of pasture grass is much faster than that of edible crops.

And to be able to eat these foods, it is the cattle and sheep they raise, and the cattle and sheep have already been transported through canning, they have all eaten these cattle and sheep, he knows that as long as the canned food produced by the Fan family manor is sold by himself, the taste will definitely be better than the canned food imitated by others.

So they have a lot of confidence, not to mention that Fan Jingjing never felt that they had to sell canned food very expensive, they all calculated the cost, and then estimated the price at which they should be sold, rather than selling it at a very high price.

The pursuit of rare things is expensive.

What she pursues is not to make the most money, but to improve people's quality of life.

Calculate the cost, and then start selling the result, the price will become relatively low, what was originally acceptable, naturally acceptable, originally unacceptable, just a little more expensive, endure for a few days, take a bite, maybe still acceptable.

Of course, those who are hungry every day, don't think about letting them accept it, because they can't afford it at all, what they can expect is that they can get a job in the workshop, get paid, and then buy canned food.

When the canning factories are established, there will be a huge increase in grain, and all of this increased grain will come from the countryside, and there will be more people in the countryside who can earn more income by selling canned food.

Those who make and sell canned food are also able to achieve greater industrial development.

Fan Jingjing clearly recognized that the biggest problem in this era is the problem of productivity, and it is very difficult to increase the amount of grain cultivation without the reform and development of agricultural tools, but there are not too many farmers in this era.

In fact, everyone will not make a reasonable distribution, because the imperial court needs food, so the people are encouraged to grow food, and the people must grow food, so that they can feed more people, because the grain can be preserved, can be transported to a long distance, and the court can receive the grain, and then give it to his officials to eat, and can also use the grain as a currency in circulation to do the basic transaction.

But can people give a little less and eat more?

It was not as difficult for Datang to engage in animal husbandry as in later generations, and there was a lot of grain in the wild, which could be provided to livestock.

Probably the biggest difficulty is that although they have a lot of food for livestock, there are also a lot of wild animals in the wild, and they will want to get food from them.

In fact, it is not just some livestock that will be like this, even if they are engaged in farming, after hard work all year round, these wild beasts will run into their fields to destroy, so that all their hard work for a year will be nothing.

The destruction of farmland by wild beasts does not happen by chance, but happens from time to time.

They would have had to pay some manpower to prevent the destruction of these wild animals.

Now that manpower has been paid to prevent the invasion of these wild beasts, the cattle, sheep and livestock that smaller children can raise are actually a better source of food.

Although some catalysts were not used, it took a little time for their cattle and sheep to grow up, but even if they did not grow up, they could still eat again, because the smaller the meat on their bodies, the fresher it was, and they needed to grow up because they needed to reproduce.

When they breed, there are small ones to eat, and if they haven't grown up, so they don't breed, they have to go out and buy them constantly, but if they are to grow up enough to reproduce.

The easiest thing should be to raise poultry, I heard that raising geese is to slowly domesticate the swans in the sky, into domestic geese that cannot fly and wander in the lake.

But the taste of goose is actually not so easy to accept, people in many places do not eat goose meat, because when he is processing, he has special means, and skills to develop these means and skills, and sales are indispensable.

So in Datang, the goose is probably the best to use, but the goose egg is not as delicious as the ordinary egg, so most people actually like to raise chickens, because the taste of chicken is acceptable to people.

And the chickens also grow relatively fast, and there are more places to raise them, they don't need much space, as long as there are a lot of bugs they can grow up, but they have to be locked up, but they will have a lot of smelly smell when they are locked up.

Manure is the source of fertilizer.

One problem is that they don't have much concept of irrigation and fertilization, but some people know how to irrigate and fertilize, but when they make fertilizer and water, their strength is still a little weak, because they don't know much about the whole fertilizer to improve soil nutrients.

And these are what Fan Jingjing has learned, and she must find a way to try to develop the knowledge he has learned.

In fact, in the age of science and technology, there are many ways to make their land more nutritious, among which the method implemented in East Asia is the best, after thousands of years of farming, the nutrition of the land can basically be maintained, and there is no problem of fallow, unlike most of the West is using fallow to slowly restore the nutrition of the land.

In tropical rainforests, where the rainfall is so heavy that if there is no vegetation on the surface, it is easy to wash away all the nutrients on the surface, and in this case, you can develop a place and destroy a place.

Fan Jingjing knows very well that East Asia's agricultural technology is powerful, because the assistance to Africa and the tropics is almost the credit of East Asia's agricultural technology.

It proves that the agricultural technology of East Asia can be used in various climatic zones, and break through the restrictions of various climates, so that the land can grow food, but at the level of scale and mechanization, because of the relationship between scientific and technological capabilities, the development is slower than that of European and American countries, making people think that the people in this land have problems with technology.

In fact, the food they make is not necessarily better than the food traditionally grown in their land, but because it is cheap, it can be shipped to various places and sold, and it has become a generally accepted product.

Fan Jingjing knows that Datang canned food is very important.

Why does it matter?

Because there is no refrigerator in this era, if you want to prolong the preservation of food, so that people can have food to eat when food is scarce, and maintain a certain good life, then canned food must exist, in fact, the best canned food should be made of alloy.

Since the mineral resources are actually still buried under the ground, the difficulty of digging them out is not too high, but it takes a little time to study Fan Jingjing did ask Jiang Blacksmith to start researching, and it will take time to succeed.