<![CDATA[ABSTRAK Kegiatan Pengabdian kepada Masyarakat (PkM) ini dilaksanakan pada UMKM Alstonia di Desa Taar, Kota Tual, yangmembudidayakan Caulerpa racemosa menggunakan sistem bak terpal. Program ini dilatarbelakangi oleh berbagai permasalahan yang dihadapi mitra, terutama pada aspek produksi, kualitas media budidaya, manajemen usaha, dan pemasaran. Pembudidaya masih bergantung pada pupuk kimia yang mahal dan sulit diperoleh, sementara pengelolaan kualitas air serta sistem manajemen usaha belum dilakukan secara optimal. Selain itu, pemasaran produk masihterbatas pada penjualan lokal tanpa branding dan strategi pemasaran digital yang baik. Melalui program ini dikembangkan inovasi pupuk organik cair (POC) berbahan lokal berupa bonggol pisang, daun kelor, dan air cucian beras sebagai alternatif pupuk kimia untuk mendukung pertumbuhan Caulerpa racemosa. Kegiatan dilaksanakan menggunakan pendekatan partisipatif berbasis potensi lokal melalui tahapan observasi, sosialisasi, pelatihan, demonstrasi, pendampingan, dan evaluasi. Masyarakat diberikan pelatihan pembuatan pupuk organik cair, manajemen usaha, serta pemasaran digital. Hasil kegiatan menunjukkan bahwa masyarakat mampu memproduksi pupuk organik cair secara mandiri dan menerapkannya pada budidaya Caulerpa racemosa. Penggunaan POC memberikan dampakpositif terhadap pertumbuhan biomassa dan kualitas warna talus rumput laut. Selain itu, program ini jugameningkatkan kapasitas UMKM Alstonia dalam pengelolaan usaha, pencatatan produksi, branding produk, serta pemasaran melalui media digital.Secara keseluruhan, program PkM ini memberikan kontribusi positif dalammendukung budidaya Caulerpa racemosa yang lebih efisien, ramah lingkungan, dan berkelanjutan, sekaligus memperkuat pemberdayaan ekonomi masyarakat pesisir Desa Taar. Kata Kunci: Pupuk Organik Cair, Caulerpa racemosa, Bonggol Pisang, Daun Kelor, UMKM. ABSTRACT This Community Service Program (PkM) was conducted with Alstonia MSMEs in Taar Village, Kota Tual, which cultivate Caulerpa racemosa using a tarpaulin tank system. The program was motivated by several challenges faced by the partners, particularly in production, water quality management, business management, and marketing. Farmers stilldepended on expensive chemical fertilizers with limited availability, while water quality management and business administration were not yet carried out optimally. In addition, product marketing was still limited to local saleswithout proper branding and digital marketing strategies.This program introduced an innovation of liquid organicfertilizer (LOF) made from local materials such as banana corms, moringa leaves, and rice washing water as an alternative to chemical fertilizers in supporting the growth of Caulerpa racemosa. The activities were implemented using a participatory and local resource-based approach through observation, socialization, training, demonstration, mentoring, and evaluation stages. The community received training on liquid organic fertilizer production, business management, and digital marketing.The results showed that the community was able to independently produce and apply liquid organic fertilizer in the cultivation of Caulerpa racemosa. The application of the fertilizer positivelyaffected biomass growth and improved the color quality of seaweed thalli. Furthermore, the program enhanced thecapacity of Alstonia MSMEs in business management, production recording, product branding, and digital marketing. Overall, this Community Service Program contributed positively to developing a more efficient, environmentally friendly, and sustainable Caulerpa racemosa cultivation system while strengthening the economic empowerment of coastal communities in Taar Village Keywords: Liquid Organic Fertilizer, Caulerpa racemosa, Banana Corm, Moringa Leaves, MSMEs.]]>
