Productivity Improvement Of Seaweed (Gracilaria verrucosa) Fertilized With Vermicompost Made From Different Organic Wastes

Rahim, Andi Rahmad and Rosmarlinasiah, Rosmarlinasiah Productivity Improvement Of Seaweed (Gracilaria verrucosa) Fertilized With Vermicompost Made From Different Organic Wastes. Indian Journal of Environmental Protection, 41 (6). pp. 613-620. ISSN 0253-7141

Text 613-620 Andi Rahmad Rahim U 48.pdf Download (4MB)

Abstract

The development of profitable Gracilaria verrucosa seaweed cultivation is possible because of the high market demand for gelatine (agarose). These advantages make Gracilaria verrucosa cultivation attractive but problems of decreasing productivity are encountered, due to the use of chemical/inorganic fertilizers. In this study, we investigated the use of vermicompost fertilizer, from different organic wastes feed waste, reed waste (Imperata) and banana stem waste and their effect on the productivity of Gracilaria verrucosa seaweed. The data were analysed using ANOVA and the Tukey test. The results showed that the lengths of the short and long axes of the seaweed cells were 165.0-227.3 mm and 170.3-253.7 mm, respectively. The daily growth rate was 0.95-1.61% per day. The agar yield quality on day 0 was 12.4-16.0% and on day 42, it was 24.6-30.6%. The nitrogen content of Gracilaria verrucosa seaweed on day 0 was 1.50-1.86% and 2.93-3.60% on day 42 while the phosphorus content on day 0 was 0.13-0.22% and 0.41-0.61% on day 42. Treated banana stem waste is the best waste to increase the growth and quality of seaweed.

Item Type:	Article
Uncontrolled Keywords:	Gracilaria verrucosa, Mineral content, Growth, Cell size, Vermicompost
Subjects:	Agriculture Agriculture > aquaculture
Divisions:	Faculty of Agriculture > Aquaculture Study Program
Depositing User:	Admin Admin Admin
Date Deposited:	27 Mar 2023 05:44
Last Modified:	27 Mar 2023 05:44
URI:	http://eprints.umg.ac.id/id/eprint/7618

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