| Abstrak/Abstract |
People in Indonesia are now starting to care about maintaining health and avoiding the use of chemical compounds in food ingredients. Mustard (Brassica juncea L.) is a type of vegetable that is well known in Indonesian society. The use of organic-based fertilizers is one of the way to produce mustard plants organically and make the product relatively healthier. This study aims to determine the effect of the use of organic fertilizer produced by BSF (Black Soldier Fly) (Hermetia illucens) maggot (frass) and liquid organic waste from catfish ponds on the growth of mustard (Brassica juncea L.) plants. This research was conducted at the Biological Physics Laboratory, Faculty of Agricultural Technology, Universitas Gadjah Mada. This study used a completely randomized design (CRD) with 4 treatments and 5 replications. P0: without fertilizer as a control, P1: BSF maggots frass from organic waste, P2: BSF maggots frass from chicken manure, P3: liquid organic waste from catfish ponds. The plant growth parameters which is measured are plant height (cm), number of leaves (strands), leaf area (cm2),and fresh plant weight (g). The results showed that the use of BSF frass has made an increase of the plant height, number of leaves, fresh plant weight, leaf area, and produced a healthier mustard plant, whilst the liquid waste of catfish pond application resulted in the plant’s death. This study proves that Black Soldier Fly frass works as an organic fertilizer and capable of increasing mustard plant’s growth and quality. Meanwhile, liquid waste from catfish pond still needs further treatment to be applicable into the system. |
