Occupy the pit,It's in the code word.,Change it back in half an hour.,Please refresh it after half an hour.,Sorry!

————————————————————————————————————————

For this October rain, Marin was also taken aback. Because, if it were not for the wheat samarium this year, the harvest speed would be much faster, and the autumn harvest in the northwest of Beihai Country this year would also be affected a lot.

However, he could not guarantee that the North Sea Country would survive the rains of the autumn harvest every year. Therefore, after thinking about it, he decided to use the method of drying dehydrated vegetables to establish multi-storey drying rooms in various towns and villages. Each floor uses a large iron plate in which grain is placed and dried in a room at tens of degrees. In the event of autumn harvest and rain, while organizing the harvest, the harvested wheat will be dried at medium temperature and for a long time in the drying room. It is important to note that the temperature should not be too high. Otherwise, the grain will be cooked.

In addition, ordinary people can also build ondols at home and use them to dry damp grain. Therefore, after the autumn harvest was over, Marin promoted the complete replacement of the original dilapidated wooden houses with adobe houses with plates, and at the same time built ondols in the bedrooms of each adobe house.

There is a lot of grass and trees in the countryside, and firewood and grass can be found everywhere. Therefore, the adobe houses promoted in the countryside have Chinese-style earthen stoves with chimneys, and they are fire-saving stoves with thick walls.

The reason for this is that in addition to the fact that firewood and grass are cheaper than coal in the countryside, the grass and wood ash left over from the earthen stove fire is also an important fertilizer. In order to prevent the ashes of plants and trees from being wasted, Marin ordered that every peasant household should build a latrine behind the house and collect manure. And the ashes left over from the fire every day must also be piled up in a rain-free hut. This hut can be either a mud hut or a grass hut. In short, it doesn't leak rain. After all, once the plant ash comes into contact with water, the potassium salt components are dissolved and washed away with the water.

Then, every few days, a special agency in the town will send people down to collect the manure and plant ash of each household in each village, and bring it back to be processed into fertilizer.

In other words, Marin promoted the use of earthen stoves in the countryside, in fact, to collect plant ashes. Although he now has a potash mine in the Hartz Mountains, God knows when the salt mine will be finished. Therefore, collecting some plant ash and extracting potassium salts is also a matter of convenience. After all, he is also collecting manure now, and collecting and using plant ash is just a convenient thing.

It's funny to say, but Europeans have long discovered that soap is obtained by mixing plant ash and lime water, and then reacting with grease. However, they just don't know how to use plant ash as fertilizer.

Of course, modern chemistry has not yet emerged, and Europeans do not understand the principle, but only accidentally discovered that it can be used to make soap, and they do not understand the principle at all.

Marin was different, he didn't study chemistry in middle school. So, he had the ashes collected, soaked in water directly in the pool, filtered, and extracted a smaller amount of potassium carbonate. In this way, most of the plant ash is useless, so as not to take up space. When fertilization is needed, the potassium carbonate dissolved water is directly mixed into the main fertilizer.

In fact, potassium carbonate is the "gray frost" in ancient Chinese legends, which was extracted from plant ash by ancient Chinese monks. An important function of gray frost is to purify saltpeter. If there are magnesium ions and calcium ions in saltpeter, it will easily absorb water molecules in the air and get wet. When the gray frost is added, carbonate ions, magnesium ions and calcium ions form a precipitate. The potassium ions, combined with the nitrate that originally combined with magnesium ions or calcium ions, form a new potassium nitrate, which further improves the purity of saltpeter......

In addition, significant progress has been made in the work of raising earthworms with manure in the North Sea Kingdom, and multiple earthworms that like to eat manure have been selected. At present, the craftsmen under Marin's command who like to study are calculating the conversion rate of feces to earthworms, that is, the ratio of how much manure earthworms eat and how much earthworm droppings that are as black as earth.

However, at present, the research on earthworm breeding in manure is still in the stage of horse, cow and sheep manure, and human manure has not yet been successfully used to feed earthworms. Because, horses, cattle and sheep eat grass, and the manure is rich in fiber, and it is not as burning as human manure. Earthworms eat cow dung, sheep dung, and horse manure and are very adaptable. But people eat whole grains and meat, the salt content is very high, and the fecal environment is very unfriendly. Earthworms eat and are very uncomfortable, even sick, and need to be processed.

But at present, there are no professional scientists in Beihai Kingdom, so it is a bit difficult to convert human feces into a little gentle, so that earthworms can eat it. Therefore, now Marlin is mixed with vermicompost converted from cow and sheep manure into fertilizer, and there is also a lot of "black soil" with a very light smell made by human manure drying for several months.

And once the research on the treatment of human feces is successful, the main body of fertilizer in Beihai Country will become earthworm dung, which will never be recognized even if it is stolen by foreign spies.

……

In fact, because it is still the age of animal power, there are many cattle and horses in Beihai Country. In addition, the number of sheep is also large. Therefore, the total amount of animal manure, although less than human manure, is not much less.

So, the reality at the moment is that the scale of feeding earthworms with the manure of horses, cattle and sheep is huge, reaching millions of pounds. The earthworm manure obtained has reached 20 or 30 million pounds, and the earthworm manure converted every day is 300,000 pounds. Currently, the breeding center is collecting a variety of earthworms, including those from the Americas, to compare the data to select the most suitable species for the transformation of feces.

Recently, those unprofessional researchers under Marin suddenly discovered that pig manure is also a good feed for earthworms. That is to say, most of the manure of domestic livestock can be used to raise earthworms, only human manure is probably high in salt, and other factors, can not be directly used to raise earthworms.

This study is important because the newly introduced Taihu pig population in Beihai is expanding very quickly. A child gives birth to more than a dozen, and it grows fast. As long as the feed is sufficient, the manure is also absolutely sufficient. When the time comes, vermicompost will definitely be enough.

……

Moreover, earthworm chicken farming has also achieved significant results recently. The famous laying hens introduced from the Ming Dynasty - Luhua chicken, after eating earthworms that have been boiled and sterilized in hot water, the egg laying rate has been greatly improved, and the egg production rate is laid once every two days on average. In this day and age, it is an absolute miracle. Ordinary chickens often only lay eggs once a few days. Moreover, after laying eggs, they also like to squat on the eggs to hatch by themselves.

Marin set up a chicken farm near the city of Aurich and built a professional chicken coop. While restricting the movement of the Luhua chicken, it also fed the earthworms. Moreover, special baffles will be used to block the hen's view, and then take the opportunity to take away the eggs. And after the eggs are taken away, the Luhua chicken hen will be very confused. Then, continue to eat, drink, and lay eggs. In this way, this professional chicken farm provided enough grass eggs for the royal palace of Marin. Every morning, Caesar, Robert, Jack Ma, and Mary eat eggs and milk for breakfast. As for William, because he was too young, he hadn't been weaned yet, and he couldn't eat eggs yet......

Now, as long as the kang house hatches enough fertilized Luhua chicken eggs and hatches more Luhua chickens, there will be no shortage of eggs in Beihai in the future. Although it can't catch up with the efficiency of laying hens every day in later generations, it is definitely a high yield to lay eggs once every two days.