Cui Yan, a top agricultural scientist, opened his eyes and transformed into a run-down small landowner in the third year of Zhenguan. Facing a manor overgrown with grass and a house full of creditors, others were filled with sorrow, but his eyes were shining - isn't this a natural ecological farm experimental field?
He taught the villagers how to compost compost, but was scolded as a "crazy devil playing with soil"; he dug up earthworms for breeding, and was rumored to be an "earth-raising dragon spirit"; he built a biogas pool to light up lamps for cooking, but blew up vegetable thieves, and was suspected by the county magistrate of "magic magic". Use modern ecological knowledge to turn waste into gold, turn wasteland into a granary, and turn manure into a "fertile treasure."
When the Turks raided, he led the old and the weak to hide in methane tunnels and smoked the enemy troops with fermented methane slurry. When the good news of "fertilizing and driving back the enemy" reached Chang'an, Li Shimin slapped the case and laughed: "Summon this strange man quickly! I want him to take charge of my land... Let him clean it first!" A hilarious farming history of using knowledge to farm and serving the country with "local methods" began.
Did Datang have corn?