"Take prisoners of war to protect the environment, and they can figure it out."

Regarding Jia's obscenity, Lao Zhang didn't believe that the cattle of the Dukeng villagers who lacked labor would do this. Cheng Chubi had prisoners of war on hand, and the first thing he did was to leak a hundred or dozens of aristocratic leaders, and then extort these waste families. The rest, naturally, is a million wins, a million wins, a credit will be recorded, and no one will be disadvantaged.

How big is the labor gap in Dunhuang? Not to mention the "production capital" of the salt industry, just to maintain the "grain for production capital", whether it is the imperial court or the people, a large number of people are needed to fill the oasis of Dunhuang. These labors are not only used to build Dunhuang Palace, nor are they just Daxing Wubao, but also an important source of labor for "commercial tuntian".

The cost of transporting grain to Longyou is still too high, and for businessmen, it is more cost-effective to stay in the field.

It's a pity that the land in Longyou is vast and sparsely populated, and the land is extremely barren, and sometimes, you have to use something else to offset it. At present, the local tyrants of Guanlong, led by the Xue family, like the "Western Qin Society", want to convert the output of cash crops into cash, and then buy grain.

This grain is not just transported from the East to Yumen Pass. It can also be purchased from the Western Regions and transported to Yumen Pass.

Originally, the merchants of the "Western Qin Society" did not have this plan, but as an envoy, Changsun Chong had been traveling in the Western Turks and the Western Regions for two years. The scale of the envoy group is not small, and there will naturally be no shortage of Jia children among them. Among them, there is Jia Fei's brother Jia Qian's brother-in-law, who is a famous farmhouse in Hedong and is also a protégé of Jia Sixian.

A delegation of the envoys went to the hometown of Dawan and traveled westward along the medicine to investigate the water, recording a large number of animal and plant morphological characteristics along the way. And the end point of medicine killing water is the Aral Sea.

Between the Aral Sea and Lake Balkhash at this time, which was called Yibohai at this time, was the northwest sphere of influence of the Western Turks, and further north, it was the territory of high-dimensional barbarians such as Qigu, with some settlements scattered but basically classified as a barren place for people.

And it is precisely this place that surprises the children of the Jia family.

This land is worth investing in manpower. It only takes at least two years to develop the raw land before it can produce stably. But it's still worth it, and Jia makes it clear that there are freshwater resources in the south, where the Hu people are complex, and there are no particularly prominent regional powers except for the Turks. The most threatening thing is only Kangju.

The south was not Jia's priority, but for the Western Army, it was a real need, producing rice and cotton.

The north, on the other hand, is a long-term investment, with its scattered settlements of the Chelsea and the Cypriots. The vast area is suitable for growing wheat, and as wheat processing becomes more mature, the overall yield of wide planting and thin harvest in the high latitudes is quite impressive, even if the winter is extremely extreme.

The peasant members of the Changsun Chong envoy group have been able to see the snow-capped mountains for the second time after inspecting the farthest places. According to their estimates, the entire northwest of Yibohai is a unit of land with tens of millions of acres. Although these lands can only grow wheat, this amount is quite staggering and even more gratifying.

"They can't be at the southern end of the Ural Mountains, are they?"

If the envoys really went deep into the Ural Mountains, then it was indeed possible to investigate tens of millions of acres of arable land. It's just that at such a distance, there is no use for eggs......

Although Jia and the agricultural students may have been really excited, the yield of wheat per mu in these years was quite low, and the high latitudes were not suitable for survival, with only scattered tribes scattered among them. To develop the wheat belt of the Soviet-era Urals, you need a large number of estates, a large corps, a huge water conservancy facility, a very large fertilizer industry, and an incomparably large mechanized agriculture.

If you don't have that, then it's better to graze.

The real value is still in the middle of the river.

"However, it is possible to let the expedition team build a stronghold there. The quality of the fur here is quite high, and the fur is no problem as hard currency. ”

The profits of fur are still windfall profits, and in this area, there are not only bears, tigers and fierce beasts, but also a large number of mink, deerskin, and fox skins of high quality. It is a regional specialty, and it is also a commodity that was quite popular in the Tang Dynasty by Hu merchants in the Western Regions.

Zhang De never spared pen and ink in the response of the agricultural students, he analyzed the pros and cons one by one, and explained the difficulty of agricultural production in high-latitude areas. The cost was spread out again, so that Jia and the agricultural students could understand the embarrassment and inadequacy of the existing conditions.

In the end, the two words between the lines were just what Cheng Chubi was doing.

It's just that the Hezhong area will not be like the Hu Nu in the Chang'an wine shop, throwing herself into her arms and selling her body with laughter. The complex environment here is never simply a matter of labor output.

The civil strife of the Western Turks, the complex relationship between the states of the Western Regions, and the fear of the Tang Dynasty on all sides...... These reactions to the bottom are nothing more than the Hu people's vigilance and even hatred of the Han people.

And Cheng Chubi took advantage of this hatred to "restore the Han land" in a grand manner. The Tang Dynasty will no longer attack the rights and wrongs of the last capital Wei Cheng, because "restoring the Han land" is correct and unquestionable. The Western Regions Protectorate of the Han Dynasty was glorious and possessed of heavenly principles.

The weaker side, which does not want to lose its position of power, will inevitably unite against the stronger side from the east.

However, not to mention Zhang De, even Qu Tuquan, Wei Chihuan, Li Yi, etc., in the fourteenth year of Zhenguan, they are all advocating to follow suit and end Duwei and restore my Hanjiang.

Shouting this kind of slogan does not cost much, but with the public construction of Dunhuang Palace by the imperial court, the meaning of this can be imagined.

By March, the cavalry of the last commander could cross the territory of Khotan to the Green Mountains at will.

In April, the Western Turkic Tutun Ashnao Zhen of Khotan was killed, and the entire Khotanese region smelled a familiar smell. A Tang Dynasty knight wearing a demon mask drank the Mayu River from time to time. The camel caravan in Dunhuang was busy again, and the mules and horses were like the Great Wall, moving slowly and continuously. Even the thinnest man in the horse team knew that the Tang people were going to fight to the Green Ridge and to the Tuduo River.

At the same time, Li Chunfeng, who was in the city of sin, asked for a volume of the holy decree of the Son of Taihao, swore an oath in front of the Dragon Slaying Platform, and did his best to influence the emperor and the Lord of the Law of the Xindu River, and to fight for the rebellion of the Son of Taihao.

Originally, the Western Turks thought that the Tang Dynasty should not fight too much this time, after all, the Western Regions in April were not as good as the Central Plains, and it was difficult to transport materials.

But what I never expected was that the number of troops that was entangled in the magic stick that was showing off his might in Bolu was much larger than that of the Tang Army. Even if it is a rabble, more than 100,000 rabble is enough for the Western Turks, which already have a small strength, to be pinned down to one side.

And the eldest grandson Chong, who is still befriending the nobles of the Western Regions, directly said: The monarchs moved to Chang'an, and they can still seek wealth and prosperity in the world; Resisting the king is tantamount to hitting a stone with an egg, one person doing evil, and even affecting the three clans, how unwise.