培 is built from the 土 and 咅 (split (in 部·倍)) components.
It belongs to a phonetic family with 倍, 賠, and 陪 — they share the 咅 component and the reading バイ.
A common word using 培 is 栽培 (さいばい), meaning “cultivation”.
Kanji that look similar include 域, 基, 堀, and 堂.
