Zhu Yuanzhang's movements were very fast, and he really didn't stay in Juyanze for long, in his opinion, staying in Juyanze for too long was not a good thing.

After all, the Mongolians here are not like those in the Northeast, they have been absorbed a lot by the Ming Dynasty, at least for the time being, they dare not raise their knives against the Ming Dynasty.

It's different here, even if no one urges, Zhu Yuanzhang doesn't want to stay here longer.

Although there was already a reminder from Lan Yu, the black area still didn't expect that the journey from Juyanze to Daming would be so difficult.

This road is not short, and it is all yellow sand, and there are no less than 100 soldiers who died of heat and exhaustion.

It made He Qiu extremely uneasy in his heart, this vast desert, if you look at it from a distance, you will naturally feel that under the rule of Tiangong, there are no wonders, and the scenery is spectacular.

But if you really let people in and take a trip, even no matter how optimistic you are, you don't want to go a second time, at least He Qiu.

Zhu Gaochi should have asked Zhu Yuanzhang about them, and later discussed environmental protection with He Qiu, but He Qiu had to tell him with great regret.

It is almost impossible to protect the environment in Daming.

To put it simply, there is a shortage of water in the northwest, and if the water is used to grow trees, who will help them pay taxes and give them food?

Further, if they don't cut down trees, how can they heat themselves in winter? Throughout the year, how do you cook a meal?

I don't know what Zhu Gaochi thought after hearing this, anyway, his face was quite ugly.

Maybe He Qiu's words will make him remember it in his heart for a long time, which will definitely make him understand a truth, even if it is powerful, even if the emperor orders, there is something that cannot be done.

In fact, the difficulty of things is far more than He Qiu said.

The deeper reason is that Daming can't find a tree species that can withstand drought at all.

Don't look at the later generations of desertification control and afforestation in the northwest, the dry scenery is beautiful, but it was established in New China to find a set of practical and feasible methods of desertification control.

There are also various tree species that can withstand drought and sustain each other.

These species are carefully cultivated, and they are not something that can be simply picked out.

And with the productivity of the Ming Dynasty, plant a hundred trees, and if you can survive a dozen of them, what role can this tree play in the northwest of the Ming Dynasty?

How much does it cost? Will the imperial court be able to remain unchanged for a hundred years?

If there is no continuity in the policy, it will only take a generation at most, and everything will return to the old view, which will only cost the people and money.

He Qiu thought silently in his heart, slightly gloomy.

Then He Qiu followed the large army and slowly walked to Jiayu Pass, the jade gate pass of the Ming Dynasty, which was already the territory of the Ming Dynasty.

He Qiu also breathed a sigh of relief, after this trip, he just wanted to return to the capital as soon as possible, and his wife and children were hot on the kang.

Who wants him He Qiu to run a few more times in the future, but there is no door!

Just said that on the way to the south and north of the desert, how much sand did he eat in He Qiu?

Maybe Zhu Gaochi and Zhu Yuanzhang are much better, after all, the Son of Heaven has a lot of curtains, which can block a lot of wind and sand.

But these of them who were courtiers were not so lucky, they were exposed to the wind and sun outside every day, and the wind and sand hit their faces, and then He Qiu didn't feel any pain anymore and got used to it.

Looking up, the courtiers who followed Zhu Yuanzhang on patrol were all disgraced, looking like they were more than ten years old.

Although he had come to the territory of Daming, the speed of the march did not slow down, which was an order from Zhu Yuanzhang.

After all, the northwest of the Ming Dynasty is so dilapidated that it can't support the army's long stay.

Even if Zhu Yuanzhang can exempt a certain amount of local taxes, it is still not cost-effective to calculate it as a whole.

Especially in the Hexi Corridor, the prosperity of the Han and Tang Dynasties in the past has long been gone, and it is broken like a puzzle that can no longer be put together.

No matter how you look at it, it is impossible for Zhu Yuanzhang to stay here for a long time, and only by passing through here quickly can he alleviate the burden on the local area.

Although Zhu Yuanzhang ordered a quick passage through the Hexi Corridor, it did not mean that he could not take a good look at the local situation.

You must know that the cement road of the Ming Dynasty has been built through the northwest, after all, this is a military center, and the first cement road is from Beiping to Nanjing.

The second is from Nanjing to the northwest, which greatly eases the pressure on military reserves in the Hexi Corridor.

Now that the cement road has been repaired, the area along the cement road is actually the most prosperous place in the local area.

In the Hexi Corridor, you don't need to look at anything else, just look at his agriculture.

There is no industry or commerce here, and there is no need to enter the city.

But along the way, what Zhu Yuanzhang saw was not good.

This made Zhu Yuanzhang look a little depressed, why do you say?

Almost half of the farmland along the route is sorghum, the rest is millet, and the combination of wheat, sweet potatoes and potatoes is probably only three or four out of ten.

You know, the yield of sorghum is very low, and it is generally used to make wine, who has nothing to grow this to eat?

But Zhu Yuanzhang has also farmed, of course he knows why the northwest chooses a variety of sorghum and millet, because these two can resist drought!

Wheat production requires too much water to support wheat cultivation in the northwest.

This is also a choice made by the local people out of desperation.

It's just that there are obviously high-yield sweet potatoes and potatoes, but why haven't the officials in Gansu promoted them well?

Zhu Yuanzhang was a little angry in his heart, but for the time being, he kept these anger in his heart, and only waited to meet the political envoy and others in Gansu before attacking again.

Soon, Zhu Yuanzhang's frame came to Lanzhou, which is also an important town in the northwest of the Ming Dynasty.

Although Shaanxi was very large in the early Ming Dynasty, Lanzhou was indispensable among the several big cities that could be counted.

Without him, the Hehuang area is all the Tusi of the Qinghai-Tibet Plateau, and it can't form a big city, and the Hexi Corridor is too dilapidated, so the two have almost no sense of existence.

Guanzhong is the hometown of the Han and Tang Dynasties, although it does not return to the old view, but there are still many big cities, such as Xi'an.

But the only one that can be regarded as a big city is Lanzhou, which is really close to the Mongolian generation.

Lanzhou is located at the junction of the Yellow River and its tributaries, and its geographical location can be described as unique, so the farmland water conservancy construction is very good.

At this point, Zhu Yuanzhang is still quite satisfied.

Before entering Lanzhou City, the political envoy of Shaanxi Province and others had already greeted him in Lanzhou City.

Zhu Yuanzhang got out of the car, and saw that they didn't wait for them to say hello first, and Zhu Yuanzhang took the lead in making trouble.

"Why haven't the sweet potatoes and potatoes in the Hexi Corridor been promoted more? Obviously, these two crops are drought-resistant! ”

The people in front of them glanced at each other with a wry smile, and finally the political envoy came forward to answer.

"Your Majesty doesn't know that the people of Shaanxi are too poor! Even though these two good varieties have been promoted by the imperial court, their rhizomes are all asking for money.

Those who can afford these two crops are only a small number of people after all.

And because they are too poor, they really can't afford the slightest risk, if they rashly let them change to sweet potatoes and potatoes, I'm afraid few people are willing.

Therefore, the ministers mainly let them consider whether to change sweet potatoes and potatoes for themselves. ”

Zhu Yuanzhang was shocked after hearing this, and said in disbelief.

"Didn't I have an explicit order to promote the world for free?"

The three of them didn't dare to speak now, but if they didn't say it, Zhu Yuanzhang didn't know what was going on?

Zhu Yuanzhang really didn't expect that there would be such a person who was not afraid of death, he had already killed so many people, how could there be such a greedy person?

Do you think that his Zhu Yuanzhang's knife is not sharp enough?

Zhu Yuanzhang's eyes were cold, and he said to several heads in Shaanxi Province.

"Wait until you enter the city!"