Published on January 2019 | Biotechnology, Biofertilizer, Chemical Engineering, Enzymology

Foliar Fertilizer Production from Waste Fish

Foliar fertilizer is superior to regular solid types of fertilizers in terms of efficient assimilation by the cultivated plants. In this paper, the production of foliar fertilizer is based on an easy and low-cost process. A laboratory-scale experiment was built to utilize waste fish and protease enzyme. The waste of Nga-myit-chin (bone, head, and tail), freshwater, and marine catfishes were selected for protein-containing raw materials. Calotropis gigantic latex was chosen as protease enzyme. Proteolytic hydrolysis of waste fish was easy to set up. Macro and microelements present in fish hydrolyzed solution were analyzed by Kjeldahl method, flame photometry, Nesslerˈs method and Atomic Absorption Spectroscopy. All the contents of macro and microelements in fish hydrolyzed solutions were compatible with theoretical data. Thus the resulting fish hydrolysates were found to be suitable for foliar fertilizers.