Indonesia is one of the biggest countries in the world in terms of fish production yielded about 6.11 million tonnes in 2016. However, about 30-60% of those are considered as waste that might pollute the environment. Utilizing the fish waste as organic fertilizer is believed as a promising solution. This study aimed to evaluate the effects of fish waste-based organic fertilizer on the growth and yield of sweetcorn. An experiment had been done in Sukaraja Sub-district, Bengkulu Province. There were 5 dosage levels of fish waste organic fertilizer, namely 0, 2.5, 5, 10, and 15 t/ha, and as a comparison, we used 200 kg/ha of NPK (chemical fertilizer).The research was designed in Completely Randomized Design in 4 replications. The data were analyzed by Anova and continued with LSD 5% test as pair comparison is SAS application. The main results of this research confirmed that fish waste organic fertilizer had high nutrient contents of N, P, and K. Moreover, this research showed that the lowest dosage of fish waste organic fertilizer (2.5 t/ha) had a similar effect to that of NPK 200 kg/ha in terms of plant height, shoot biomass, root biomass, and economical yield. We concluded that fish waste organic fertilizer has a great potential to be used in low dosage, especially for sweetcorn organic cultivation.
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