Once Chu Heng offended the powerful, he was demoted to the poorest place of exile in the Tang Dynasty. He starved to death everywhere, and even the county government could hardly open the pot! He is about to starve to death - wait a minute, in his previous life, he was the top scorer in the Agricultural College, and he was full of ideas about hybrid rice and composting for steelmaking? Looking at the "waste" all over the ground, he smiled. Everyone was waiting to see this son of an aristocratic family starve to death in the wilderness, but all they saw was that he had bred thousands of kilograms of sacred crops on dry land, and planted medicinal herbs on barren mountains for a long time. From the grain of a county to the lifeblood of a country, when the dignitaries in the prosperous times held golden bowls and begged for a grain of rice, he already held the world's granary in his hands.