Animal manure not cat or dog can be used, or you can use bloodmeal, to cups per square feet of surface area. 마지막으로, 퇴비 더미에 미생물을 도입하기 위해 일반 정원 흙을 세 번째 층으로 추가합니다. As with most items you add to your compost heap, soil should not have been recently treated with chemicals.