Amanat UU 32 tahun 2014 tentang Kelautan salah satunya percepatan dan penguatan ekonomi nasional dari potensi kelautan yang ada. Penelitian ini mengkaji kontribusi PDB ekonomi kelautan; dampak pengembangan ekonomi kelautan; dan implikasi kebijakan pengembangan ekonomi kelautan. Metode penelitian menggunakan analisis data sekunder. Data yang digunakan adalah data sekunder tahun 2010-2015 yang diperoleh dari Badan Pusat Statistik (BPS). Data dianalisis secara deskriptif kuantitatif menggunakan model I-O (Input-Output) yang diupdate ke tahun 2015. Hasil penelitian menunjukkan bahwa persentase produk kelautan terhadap PDB terus meningkat mencapai 28.01 % pada tahun 2015. Berdasarkan kajian terhadap dampak ekonomi yang dihasilkan, perlu diprioritaskan pengembangan ekonomi kelautan pada tiga sektor yaitu: industri kelautan, perikanan dan pariwisata bahari. Prinsip kebijakan pengembangan ekonomi kelautan harus inovatif dan berkelanjutan yang bertumpu pada peningkatan daya saing, modernisasi sistem produksi, penguatan kapasitas pelaku industri dan berbasis komoditas.Title: Dynamics and Policies of Indonesia’s Ocean Economic DevelopmentLaw number 32 of 2014 about The Sea mandates the national economic acceleration and empowerment from the potential of marine. This research examined the contribution of the ocean economy to GDP, impact of ocean economic development, and policy implication of ocean economic development. The research used secondary data analysis method. It used secondary data of 2010-2015 that were collected from Statistics Indonesia. Data were analyzed with quantitative descriptive method with I-O model (input-output), that were updated to 2015. The results showed that the percentage of marine products contribution to GDP increased to 28.01% in 2015. Based on the analysis of economic impact, it is necessary to prioritize the ocean economic development on three sectors: marine industry, fisheries, and marine tourism. The ocean economic development policies must be innovative, sustainable, increasing competitiveness, modernizing production systems, and strengthening the capacity of industrial and commodity-based players.

Widorokandang Village, Magetan Regency, East Java has potential in agriculture and animal husbandry. The problems faced in agriculture are about the price of fertilizers and the use of inorganic fertilizers in the long term. The alternative of reducing the use of inorganic fertilizers by using organic fertilizers can help to improve soil structure and good nutrients. This is supported by the existence of a rabbit farm in Widorokandang village which produces rabbit urine waste as the main ingredient for making liquid organic fertilizer. The process of making liquid organic fertilizer is done by fermentation which is easy for the community to do. IPB KKN-T students together with rabbit breeders in Widorokandang village made a liquid organic fertilizer product "Growi". This product is expected to help overcome fertilizer problems in Widorokandang village and improve the community's economy. The relative profit value of the "Growi" liquid organic fertilizer business has a value of more than 1 which is a feasible business.