摘要：Rosa Bitamina (RB) is an organic fertilizer made from marine-waste product such as shrimp shells, fish carcasses and anchovy heads. This product applied a 3R waste management system which reduced waste products by reused it in production of a new product. Objective of this study is to observe effects of RB towards Rosa centifolia resistancy and flowering process. This fertilizer was produced by grinding dried marine-waste product to small particles. Rose plant with same maturity were used and divided into three different treatments which are T1; control (soil only), T2; soil +commercial fertilizer, T3; soil +RB and T3; soil +RB +charcoal. All samples were placed under plant house condition with 12hours light exposure for 8 weeks observation. Assessment was conducted on physical assessment through an observation. On week 2, all samples for T3 and T4 showed changes except sample from treatment T1 and T2. T1 and T2 only showed a development on week 4. All leaves remains green and dewy throughout the observation. Thus, RB can enhance the flowering process of R. centifolia up to 2 weeks earlier compared to the untreated R. centifolia. Plant resistency also improved by applying Rosa Bitamina since all sample remains fresh until day 8 weeks of observation.
关键词：Organic fertilizer;3R waste management system and Rosa centifolia
