I Am Engaged in Fertilizer Production in Da Song Dynasty

Lu Chen, a chemical genius, accidentally traveled to Lin'an City in the Southern Song Dynasty. He was surrounded by rotten stench every day and was looked down upon. When others cover their noses and run away, his eyes shine—— Nitrogen, phosphorus and potassium are the gold of crops, and nitrifying bacteria are the secret key to gunpowder! A handful of lime can remove odor, and three loads of fertilizer can be exchanged for a thousand gold; He built the "Sediment House" to triple the yield per mu of poor farmland; He refined "ground frost and saltpeter", and his lowly status was connected to the military camp, and the gunpowder factory asked him to be worshiped; From the Stinky Ditch to the Jinluan Palace, the nobles and nobles throughout the dynasty are all "fertilizers"! Let's see how modern science stirred up the situation in the Song Dynasty!