The present invention relates to bed soil for raising seedlings for a long term, which is treated with a controlled release fertilizer, and a manufacturing method thereof. The present invention provides bed soil for raising seedlings for a long term, which is treated with controlled fertilizer and comprises 10-20 parts by weight of peat moss, 5-10 parts by weight of perlite, 3-5 parts by weight of zeolite, 1.0-1.5 parts by weight of a controlled release fertilizer, 0.05-0.1 parts by weight of PMAA, 0.05-0.1 parts by weight of mound lily to 60-70 parts by weight of coco peat, and a manufacturing method thereof. The bed soil for raising seedlings for a long term treated with a controlled release fertilizer according to the present invention is treated with the controlled release fertilizer so that the nutrients last for two months, which allows seedlings to grow stably； and is treated with mound lily and a seaweed extract which are natural substances, and PMAA and CFCS7 which are functional substances so as to enable rooting and provide antibacterial activity, which enables to tolerate a bad condition. Further, the bed soil of the present invention is able to supply nutrients for two months, which are relatively long, with one time treatment of fertilizer, which is able to minimize the labor input necessary to raise seedlings. [Reference numerals] (S100) Pulverizing coco peat and peat moss； (S110) Steam sterilization； (S120) Mixing perlite, vermiculite and zeolite； (S130) Mixing controlled release fertilizer, pipe supplying fertilizer, PMAA, CFCS7, mound lily, and a seaweed extract； (S140) Stirring mixed materials； (S150) Measuring and packaging； (S160) Loading and shipping본 발명은 완효성 비료를 처방한 장기육묘용 상토 및 그 제조방법에 관한 것으로, 코코피트 60 ~ 70 중량부에 대하여, 피트모스 10 ~ 20 중량부, 펄라이트 5 ~ 10 중량부, 제올라이트 3 ~ 5 중량부, 완효성비료 1.0 ~ 1.5 중량부, PMAA 0.05 ~ 0.1 중량부, 유카 0.05 ~ 0.1 중량부로 구성되는 것을 특징으로 하는 완효성 비료를 처방한 장기육묘용 상토와, 이의 제조방법을 제공한다. 본 발명에 따른 완효성 비료를 처방한 장기육묘용 상토는 완효성비료를 처방하여 영양분이 2개월간 지속되도록 유지시켜
