In the morning, the sun is tugging at the water, and by the wide salt pond, Zhang Liao is looking at the salt pond with Yingyi, Guo Jia and Hedong County, Wangyi and others.

Different from the time of Dong Zhuo and Wang Yun's administration, Zhang Liao was wary of controlling the salt pond at that time, at this time, Li Wei and Guo Wang were in power, but he did not care, after controlling the salt pond, the first thing he had to do was to operate the salt pond first, and to operate better, becoming an important tax source for himself.

The whole salt pond is 51 miles east and west, six miles wide north and south, and the south of the pool is streaked by the middle of the mountain, which is shaped like a lying bow, and there are peach blossom holes at the top of the mountain, and the water flows into the salt pond, as the water source of the salt pool, otherwise it will evaporate every day and dry up sooner or later.

The salt pond is very wide, but the salt fields opened up around the salt pond are wider, looking at the snow in the past, but the distribution of the salt fields is very large and small, which is the result of each family's division and salt.

When Zhang Liao first served as the east side of the river, he understood the salt-producing method of salt ponds, and the salt ponds were reclamation on all sides, the water was waving, and the water consumed salt.Every year in February, water in April, salt in summer, and in August, it also depends on the sky.

However, in addition to a few genus, there was also an experienced old salt worker accompanying him to explain the situation of the salt pond, and he knew more about the method of salt making.

In today's Hedong salt pond, there are three main methods of salt production.

The first method is the oldest fishing method, directly let the salt workers go down to the salt pond for fishing, because the salt pond water evaporates for a long time, the bottom of the water has accumulated a large area of crystalline stone salt, as long as it can be eaten up, this method is relatively simple, but only suitable for shallow water, the salt pond is buoyant, people in the deep water area can not dive, often fall stones, fishing is difficult, but also dangerous.

The second method is frying, which evaporates the water of the salt pond to a certain extent, becomes brine, and then pours the brine into the pot to make a frying boil, and the water is dried with salt.

However, these two methods, the scale and yield are too small, and the water of the salt pond in Hedong has a bitter taste, and the salt produced by these two methods is of poor quality and has a bitter taste, so Hedong salt is also called bitter salt in the spring and autumn of the business week.The salt is usually sold to the poor or to the foreign.

Zhang Liao stopped at a saltwork fishing place, tasted the salt he had picked, frowned, and the salt that was directly fished out was indeed bitter, and the salt in the future life was too bad.

In addition to these two methods, the third method is to pour the sun, build salt fields around the salt pond, repair the salt, which is similar to a shallow pool at a depth of several feet, and then dig a ditch, the water of the salt pond is introduced into the salt, and the wind blows, and the water is steamed and salted out.

At this time, Ying Yi said: "Lord, the first Qin time, the salt that comes out of the salt that is soaked in the way is also bitter, and then the salt workers slowly summed up some experience, using the water to water, and separated the mannits in the salt water, and the salt quality is better."

“Mongji?”Zhang Liao's chemical level is really general, do not know what is mannit.

He walked over to a salty edge, bent over and took up a few thick white particles, gave Zhang Liao, Zhang Liao put it in his mouth to taste, suffering more than salty, he frowned: "This is Manny?"

He nodded, “Yes, in addition to salt, there are many debris in the water of the salt pond in the east of the river, so the pool is bitter and salty.”

Zhang Liaoqi said, “How to separate the mannit?”

There are other debris in the salt pond, he knows that if it is a hereafter, it is natural to be separated easily by various chemical means, but in this era, how are they separated?

“It’s a matter of time.”Yin Yi pointed to a piece of salt on the left side and said: "Salt workers divide the salt fields into four, the first one is the largest, after autumn and August, the water of the salt pond is introduced, the sun is consumed, which becomes brine, and when the winter is severe, there is mannitum in the bottom of the pool."

Zhang Liao nodded, some understand that the brine winter precipitation of mannitus, which should be the use of temperature changes, in the low temperature state, mannitol solubility is reduced, the first to be precipitated.

Yin Yi pointed to a salty next to him: "After the first manganese nitrate is finished, it is March of the following year, which leads to this brine into the second threshingum, and by the beginning of summer, this white tampeal is generated on the surface of the brine, and the salt workers call it 'fuzzy', at this time the brine is called the sun, and the sun is still very bitter."

Zhang Liao nodded, looking at the second, this is the middle of April, sure enough, the surface of the second brine has a large white fumigation, he estimated that this should still be through the change of temperature difference to analyze other impurities, but Zhang Liao also does not understand what these white floes are exactly the substance, he took some taste, but it is more bitter than mannitus.

He also pointed to the third salt that came close: "After the second white flea is generated, the sun can be introduced into the third truise, and the bottom of the third pool has a mannitted compacted nitrate plate, and after this lint, the white truce in the yang water can be precipitated, but the nitrate board accumulates thicker and thicker, and finally only the remaining halogen, this water is called *** ***Fast, nitros board thickened, I am afraid not only natural precipitation, should be accompanied by the chemical reaction of white flounder and bottom nitrid board.

Then Ying Yi pointed to the fourth salt and said: "Finally, the water will be introduced to the fourth, the water will be a foot deep, as long as the wind blows the sun, five or six days can produce salt flowers, this is 'falling salt', the water is salt out, and there is no bitter taste."

Zhang Liao saw that this salt on the edge of the salt is still falling some salt particles, it should be last year fell him, he took out a salt grain, put it in his mouth to taste, although the salt is still a little bitter, but the taste is a hundred times stronger than the salt extracted.

He could not help but admire the wisdom of the people and the salt workers, although they did not understand the chemical principle of the salt pond water to produce impurities, but they could sum up in labor, using the change of temperature difference in the four seasons of the year, cleverly separating the mannit, white taut and other substances in it, which is really rare, as the hustle and bustle said, this time of day power is also.

The salt produced by this four-pointed method sighed: "Although the salt produced by this four-band method is good, it needs to go through a cold and summer, and the storage of brine is limited, it takes a long time, and it is not possible to travel to the pool, so the salt produced by the salt produced by the people is the bitter salt that is directly drawn into the pool."

Zhang Liao nodded, he understood the words of Ying Yi, most of the salt produced by the Four Rong Fa for the court and the king, and the ordinary people ate bitter salt.

Zhang Liao frowned and looked at the scattered and different sizes of salt on all sides, and said decisively: "Wen Ruo, after this autumn, you can launch all the soldiers and young strong to repair all the four salts, broaden them by ten miles, and re-dividend the layout, all of which are built into four."

The original salt pond by the strong control, separate, mixed, if renovated, unified process, then the annual salt production will be greatly increased, the quality will be better than the original.

“Oh!”He said, “The Lord is doing this well.”

Zhang Liao laughed, and at this time, suddenly came a song from far away: "The south wind can understand the twilight of our people, when the south wind is swollen, you can fu my people's wealth..."

Zhang Liao couldn't help but look at the old salt worker on the side and smiled, "I don't want this salt worker, there are still people who can sing the song of the ancient Yushun."

The old salt workers were busy: "The general does not know that the salt workers here can sing the 'Southern Wind Song', the south wind, the salt is born, the south wind is the treasure of God."

Zhang Liao laughed and said, “What did the old man say this?Although the south wind is good, is this east wind and west wind not helpful?”

In his view, as long as it is wind, it can accelerate evaporation, regardless of the southeast and northwest wind.

Unexpectedly, the old salt worker nodded and said, "It is so, the south wind is the best, the east wind is good, if you encounter the northeast wind or the southwest wind when the salt is basking, the brine will be 'porridge', like rice paste, the salt produced is more bitter and unsatisfying than the bitter salt picked up, so in the eyes of me and other salt workers, this south wind is really God's gift, not disrespectful."

Zhang Liao couldn't help but wonder, looking at the Wang Yi of Hedong County: "Is it really so important?"

Wang Yi nodded, "General, that's it."

They are not surprised by the hustle and bustle, and they are amazed at the wonder of creation.

Zhang Liao mused, he did not believe that the south wind is due to the sky, if the southeast and northwest wind effect is different, it must be another reason.

He sighed: "South wind out of salt, there must be a reason, the so-called south wind warm, the north wind cold, the east wind is wet, the west wind is dry, presumably this cold, warm, dry, wet, also has an impact on the salt."

He naturally knows that temperature plays a very important role in many chemical reactions, and the difference between the southeast and northwest wind is mostly the difference between cold current and warm currents, which should be caused by the increase in the content of mannit or other substances in salt water, resulting in the bitterness of the crystallized salt.

Listening to what Zhang Liao said, the old salt worker trembled and murmured: "The general's words are reasonable, think about it, when the northeast wind and southwest wind come, the weather is mostly cold, I am afraid it is so!""The brine winter out of the mannit, the summer hair is blurred, is it also because of the difference in cold and warm?"

This old salt workers generation engaged in the salt industry, skilled, experienced, listened to Zhang Liao's words, suddenly realized, and figured out a lot of truth.

He and the wise man, and he speaks.

Guo Jialian praised: "The Lord can see the appearance and know the book, I may as well."

Even the thorns, they were impressed by the fact that Zhang Liao was so capable of it.

Zhang Liao grinned and was about to speak, and the old salt worker suddenly said again: "General, there is another thing, I wait for the salt workers to bewitch for a long time, and I venture to ask the general to solve the confusion!"

“Oh?”Zhang Liao looked at the old salt worker full of expectation and smiled, "Listen to me."

Unexpectedly, at this time, the sky suddenly came a roar of thunder, they did not look at it with surprise, but found that they did not know when the sky actually had a rain cloud.

Wang Yi's face changed slightly, busy: "General, this salt is most afraid of heavy rain and flooding, once there is a flood on all sides into the pool, this year's sausage will be a bad harvest."

Listening to Wang Yi say this, Zhang Liao's face also became heavy.