1- دانشگاه فردوسی مشهد 2- Ferdowsi university of mashhad
Abstract: (740 Views)
In this study, the effects of different levels of biofertilizer containing phosphate solubilizing bacteria on aerobic digestion of Nile tilapia (Oreochromis niloticus) sludge were investigated in vitro under a completely randomized design. Three experimental treatments including aerobic digestion of Nile tilapia solid sludge without adding biofertilizer (control) and aerobic digestion of solid sludge with adding biofertilizercontainingphosphate solubilizing bacteria (Pseudomonas putida strain P13 and Pantoeaagglomerans strain P5) at levels of 0.1% and 0.2% were used in triplicate. The aerobic digestion containers with a capacity of 1 L (9 containers) were kept in a shaker incubator at 30ºC for 28 days. The results showed that the concentration of phosphate, potassium, and iron nutrients on the 14th day of the experiment in the biofertilizer treatments were significantly higher than the control, but their concentrations on the 28th day in the biofertilizer-0.1% treatment were significantly higher than other treatments )p<0/05). The manganese concentration on the 14th and 28th days in the biofertilized-0.1% treatment was higher than other treatments (p<0/05). The results of the present study indicated that the aerobic digestion of fish sludge for two weeks with adding biofertilizer containing phosphate solubilizing bacteria (P. putida strain P13 and P .agglomerans strain P5) by counting 107 of each bacteria per mL (CFU/mL) at 0.1% improved the release and dissolution of nutrients.
Madady M H, sarkheil M, zahedi S, Arouei H. Effects of different levels of biofertilizer containing phosphate solubilizing bacteria on aerobic digestion of Nile tilapia (Oreochromis niloticus) sludge to produce liquid fertilizer. isfj 2024; 33 (2) :87-100 URL: http://isfj.ir/article-1-2806-en.html
با کسب مجوز از دفتر کمیسیون بررسی نشریات علمی وزارت علوم، تحقیات و فنآوری مجله علمی شیلات بصورت آنلاین می باشد و تعداد محدودی هم به چاپ می رساند. شماره شاپای جدید آن ISSN:2322-5998 است