Liquid Organic Fertilizer Derived from Black Soldier Fly Frass Improve Yield and Quality of Tropical Vegetables, Shallot, and RedHot Chili Peppers
نویسندگان
1 دانشگاه صنعتی اسفراین
2 دانشگاه محقق اردبیلی
3 دانشگاه فردوسی مشهد
4
5 دانشگاه رازی
6 دانشگاه صنعتی ارومیه
7 دانشگاه صنعتی ارومیه
8 دانشگاه تبریز
9 دانشگاه تبریز
10
11
12 دانشگاه علوم پزشکی تبریز
13 دانشگاه فردوسی مشهد
14 دانشگاه شیراز
15
16 دانشگاه آزاد اسلامی
doi
10.22059/ijhst.2024.373373.797چکیده
This study investigated the innovative potential of black soldier fly (BSF) frass as a potassium source and its suitability as a raw material for liquid organic fertilizer (LOF). Two experiments were conducted to assess the effects of LOF on the growth and yield of shallots and chili peppers. The research took place in Lembang, West Java, Indonesia, with the first experiment running from September to December 2022 and the second from March to December 2023. The first experiment, a pot study, used a factorial design with nine shallot varieties and three LOF application rates. The second experiment, a field study, examined two factors: the LOF application method and its dosage. Results indicated that shallot growth and yield varied by variety, with ‘Bima Brebes’ and ‘Lansuna’ producing the highest yields. LOF application improved shallot biomass, increased total soluble solids in ‘Batu Ijo’ and ‘Tajuk’, and boosted vitamin C levels in ‘Batu Ijo’ and ‘Maja’. Additionally, applying LOF at rates of 5–10 mL L-1 increased the marketable yield of chili peppers, while higher rates reduced unmarketable yield. In conclusion, BSF frass appeared as a promising source of liquid organic fertilizer as it enhanced vegetable growth, yield, and quality when applied at rates of 5–10 mL L-1.
