Applications of Black Solider Fly (Hermetia illucens) Larvae Frass on Sweetpotato Slip Production, Mineral Content and Benefit-Cost Analysis

Black soldier fly (Hermetia illucens) larvae (BSFL) production is increasing, which will leaves substantial amounts of leftover excrement, called ‘frass’ that may be a beneficial organic fertilizer. In this study, sweetpotato (SP) (Ipomoea batatas) cuttings (‘slips’), were grown with BSFL frass as one-time top dressing at either 333.7g/m2 or 667.4g/m2, respectively, daily applications tea (225g in 3.78 L) an inorganic fertilizer (control). The nitrogen-phosphorus-potassium the and was 6.2-1.4-1.7 10-30-20, respectively. After three weeks, no significant difference length, number nodes stem diameter found 667 g/m2 treatment versus control, while these values significantly lowest treatment. Slip manganese copper lower higher, control compared to 333 treatments. Iron, copper, manganese, zinc magnesium slips from excluded economical analysis due minimal growth. Benefit-cost showed highest benefit-cost ratio for treatments 3.65 3.62, 3.48.