Upon hearing this, Ma Zhou lowered his head in shame.

"Your humble servant dares not claim credit, but I have indeed tried my best to stabilize prices, but unfortunately, the grain supply in Guanzhong is limited, and no matter how I try to manage it, it is not enough!"

Upon hearing this, Li Shimin looked at Li Jing again.

"Li Jing, you tell us!"

After a moment's thought, Li Jing spoke, and his words were earth-shattering.

"Your Majesty, Chang'an is actually not suitable to be the capital!"

"What?"

Li Shimin was stunned when he heard this. The Tang Dynasty had been established for nearly thirty years, and Li Jing actually said that the Tang Dynasty was not suitable to be the capital.

"Your Majesty, the amount of land in Guanzhong is limited and has long been insufficient to meet the needs of the military and civilians there."

"Furthermore, Guanzhong is full of military prefectures, and the soldiers of these prefectures are exempt from duty and taxes."

"Therefore, the grain tax collected in Guanzhong itself is not much!"

"As long as there is a drought or flood, Guanzhong will definitely suffer from food shortages!"

"This is also why the Sui and Tang dynasties frequently went to Luoyang to obtain grain..."

The so-called food shortage refers to the fact that when Guanzhong suffered a disaster, the emperor would lead civil and military officials and the army to Luoyang for a meal to alleviate the food shortage pressure in Guanzhong.

Li Shimin was naturally aware of the tradition of going to Luoyang to collect grain. After all, Emperor Wen of Sui had done it, Emperor Yang of Sui had done it, and he had done it after he ascended the throne.

He just hadn't expected that the food shortage in Guanzhong would be to this extent!

"Can't even a bumper harvest satisfy our needs?"

Li Jing and Ma Zhou both shook their heads upon hearing this.

"cannot!"

"Your Majesty, half of the grain in Guanzhong is now transported from Longyou."

"However, there are few good years and many disaster years in Longyou, making it difficult to guarantee the grain supply in Guanzhong."

"Therefore, if Your Majesty wishes to resolve this problem once and for all, the best course of action is to move the capital to Luoyang!"