An Jing's primary purpose in heading to the Tianyuan Realm was to expedite the maturation of spiritual medicines using fertilizers.
There should be a considerable amount of this fertilizer, though it does have some side effects. However, according to An Jing's understanding of the Earth Pulse Qi, as long as he could control the Earth Pulse energy of Linjiang City to counteract Broken Blade Mountain, he should be able to mitigate some of the side effects, so there was no need to worry about any residual consequences—just use the fertilizer aggressively according to its effects.
Next, were the unmanned drones equipped with high-level poison-resistant protective coatings and suits.
Since the Subdue Evil fragment was likely within the Primordial Spirit Cave, he inevitably had to enter quickly and retrieve it… disregarding the potential return of Shuo Yueying at any moment, as well as the possibility of the True Demon Sect and Da Chen's side arriving anytime.