%0 Thesis
%9 Skripsi
%A ANA ISTIANA, NIM.11640049
%B FAKULTAS SAINS DAN TEKNOLOGI
%D 2016
%F digilib:22872
%I UIN SUNAN KALIJAGA YOGYAKARTA
%K Caulerpa racemosa, Effects of NPK dosage differences, Rate of  growth
%P 98
%T PENGARUH VARIASI KOMPOSISI N, P DAN K  TERHADAP LAJU PERTUMBUHAN ANGGUR LAUT  (CAULERPA RACEMOSA (FORSSKAL) J. AGARDH) PADA MEDIA  TERKONTROL
%U https://digilib.uin-suka.ac.id/id/eprint/22872/
%X Seaweed is the one of fishery commodities in Indonesia which has a role in  increasing the income of coastal communities. Caulerpa racemosa is a seaweed  of the class Chlorophyceae which have antioxidant capacity and high economic  value. However C.racemosa production is still low because they rely on nature  and experience many obstacles, such as bad weather, pests, diseases, and  predators. This research aims to determine variations in the dosage of NPK best to  obtain optimal growth C.racemosa and find out the effects of aeration combined  with using of NPK dosage variation against C.racemosa growth rate. The research  was conducted over 42 days in August until September 2015 in the Great Hall of  Brackish Water Aquaculture Development (BBPBAP) Jepara. The research was  designed using a randomized block design (RAK) to the types of control treatment  and three kinds of dosage of NPK. NPK fertilizers were given 2 grams dosage  variation 1 NPK (1:1:1), 2 dosage of NPK (3:2:1), 3 dosage of NPK (4:2:1). The  treatmen group consist of aerated and non-aerated with 5 replications. Media  maintenance is the form of sea water using a substrate of the muddy sand in  aquarium. Fertilizers used are single fertilizer Nitrogen, SP 36, and KCl.  Fertilization is done by soaking C.racemosa with 1 liter of fertilizer solution for 6  hours. The rate of growth shown by the best dosage of 1 NPK (1:1:1) without  aeration, with an average length of 351 cm ± stolon end, the number of ramuli 38  pieces, and the mean weight of 34,1 grams wet end. The lowest growth rate  generated by the same dosage of NPK using aeration with a mean length of  117,06 cm ± stolon end, the number of ramuli 11 pieces, and the mean weight of  12,18 grams wet end.
%Z Ika Nugraheni Ari Martiwi, M.Si