PEMANFAATAN MEDIA SABUT KELAPA DAN ARANG SEKAM PADI PADA BUDIDAYA BAYAM (Amaranthus tricolor L.) UNTUK MENGURANGI FOSFAT, AMONIA, SULFIDA, TEMBAGA, DAN SENG DALAM SISTEM HIDROPONIK SKALA LABORATORIUM

Loka, Putri Gustin (2017) PEMANFAATAN MEDIA SABUT KELAPA DAN ARANG SEKAM PADI PADA BUDIDAYA BAYAM (Amaranthus tricolor L.) UNTUK MENGURANGI FOSFAT, AMONIA, SULFIDA, TEMBAGA, DAN SENG DALAM SISTEM HIDROPONIK SKALA LABORATORIUM. Diploma thesis, Universitas Andalas.

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Abstract

Hydroponics research laboratory scale with the axis of the system is expected to reduce amonia, phosphate, sulphide, copper and zinc contained in the solution of fish pellets. Data analysis was performed using Completely Randomized Design, with 5 treatments and 3 replications. For testing the concentration of amonia and phosphate dilution of the sample solution by using doubly distilled water, while to test the concentration of sulphides, copper and zinc sample by pretreatment with wet digestion process using HNO3 65% and then heated until a solution are colorless (clear). The content of amonia and phosphate in the analysis using UV/Vis, while the content of sulphide, Copper and Zinc were analyzed using flame atomic absorption spectrophotometry (AAS). From the research that has been made known that the samples of fish pellets undergo a process of reduction of the maximum on the 30th day of hydroponic systems. On the 30th day, laboratory hydroponics were made using a variety of media using spinach (Amaranthus tricolor L.) as a plant that will assist the process of reducing toxic substances. The results of phosphate and amonia analysis show that hydroponics can reduce the concentration of phosphate and amonia to 50% with composition medium charcoal rice husk 100%, coconut fiber 100%, medium with composition (charcoal rice husk:Coconut Fiber)= 25:75, While good plant medium to reduce sulphide concentration, Copper and Zinc metals is planting medium with composition charcoal rice husk:coconut fiber 75:25. Keywords: Hydrophonics, (phospate, amonia, sulphide, copper, zinc), spinach, charcoal rice husk, coconut fiber

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