Jiang He might have transmigrated to a world of Qi and martial arts, but the System that he got only provided him with... seeds. 
"Hold on, System. Aren't these just... peas? Not only are they inedible, but I'm supposed to throw them far, far away?" 

Everybody is Kung Fu Fighting, While I Started a Farm

Every Chan Sect immortal felt their jaws dropping to the floor and their eyes bulging in their shock.

Even the Chan Sect pellet refinists stopped in their tracks. Having used their immortal will to observe Jiang He, all of them turned around, with Elder Potion Dust roaring, "What a squandering of treasures! Do you know how to refine pellets, Jiang He?!"

"Brother Tai Yi, Brother Yu Ding! How could you afford Jiang He to commit such outrage?!"

"Stop, Jiang He! The Body Honing Pellets are rank-seven immortal pellets and the ingredients are very rare! You are just wasting it!"

Jiang He ignored all the cries of outrage, and instead took out a pitch-black staff with a flip of his hand.

Even the Primeval Lord of Heaven is shocked!