EFFECT OF LIQUID ORGANIC FERTILIZER (POC) SOAKING ON GROWTH AND CARRAGEENAN CONTENT IN SEAWEED (Kappaphycus alvarezii) CULTIVATION
Authors
Jery Nggadu , Yuliana saloso , Wesly PasaribuDOI:
10.29303/jp.v16i4.2342Published:
2026-08-28Issue:
Vol. 16 No. 4 (2026): JURNAL PERIKANANKeywords:
Kappaphycus alvarezii, carrageenan, growth, liquid organic fertilizerArticles
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Abstract
Kappaphycus alvarezii is a type of carrageenan-producing seaweed that has high economic value and is widely cultivated in Indonesia. This study aims to determine the effect of liquid organic fertilizer (POC) immersion on the growth and carrageenan content of K. alvarezii. The study was conducted for 45 days using a Randomized Block Design (RBD) with three treatments: no POC immersion (P1), 200 mL POC immersion (P2), and 250 mL POC immersion (P3). The parameters observed included absolute growth, specific growth rate (SGR), and carrageenan content. The results showed that POC immersion significantly affected seaweed growth (P<0.05). The highest absolute growth was obtained in treatment P2 at 392±13.23 g. Meanwhile, the highest carrageenan content was obtained in treatment P1 at 27.46%.
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