The addition of different starters on characteristics Sargassum sp. liquid fertilizer

4th International Conference on Tropical and Coastal Region Eco Development

生态环境科学;经济学

Dewi, Eko Nurcahya^1 ; Rianingsih, Laras^1 ; Anggo, Apri Dwi^1

Departemen Fisheries Processing Technology, Faculty of Fisheries and Marine Science, Diponegoro University, JL. Prof. H. Soedarto. SH., Tembalang, Semarang

50275, Indonesia^1

关键词: Fermentation process;    Liquid fertilizers;    Macro-algae;    N content;    Organic fertilizers;    Plant growth regulators;    Sargassum sp;    Total solid content;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/246/1/012045/pdf
DOI  :  10.1088/1755-1315/246/1/012045

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Sargassum sp. is a macroalgae contains of nutrients and stimulating plant growth regulators that can be used as organic fertilizer. The purpose of the study was to determine the effect addition of three different starters to the seaweed liquid fertilizer on producing C-organic, nitrogen, phosphorus, potassium, pH on Sargassum sp seaweed for organic fertilizer. The addition of different starters were to enchanced fermentation process. Seaweed were chopped and dried for around 2 days, lamtoro leaves as source of nitrogen compound was added for 25% of total amount of seaweed. Water was added to the mixture and then fermented for 14 days with addition of 3 different type of starters namely bread, tape and tempe starter. The data were then analysed by ANOVA and Tukey test in order to know which treatments were different. The result showed that the addition 3 different starters gave differences on pH and yield, total solid content, macronutrient and micronutrient of organic fertilizer. The addition of bread starter to seaweed gave the highest N content (2.7%), pH (5.43), yield (50.44%) and total solid content (94.36), while seaweed fertilizer added with tempe starter gave the highest micromineral content Fe (38.77 ppm), Zn (4.2 ppm) and Mn (4.74 ppm).