잔디 비료와 염화칼슘 둘 다 잘 되는 spreader 추천부탁드립니다.

If it’s broadcast spreader, you’re good to go. no need to buy new one.

the rotary (broadcast) spreaders are typically used for fertilizing to avoid fertilizer burns. there’s different types of lawn spreader called “drop spreader”, don’t use this.