U.K. Sarker, M. S. Hossin, M. R. Uddin, D. Hossain, M. K. Islam and M. K. Hossain
A field experiment was done to observe how sunflowers responded to varying irrigation intervals, as well as different quantities of processing poultry manure and inorganic fertilizers. The results demonstrated that the combined use of varying irrigation intervals, as well as variable quantities of poultry manure and NPK fertilizers, had a substantial impact on all growth and seed production features. The best sunflower yield and yield contributing characteristics were 91.67 cm plant height, 3.48 cm stem girth, 18.00 number of leaves per plant, 16.00 cm head diameter, 808.33 seeds per head, 54.00 g 1000-seed weight, and 1.70 tha-1 seed yield with a 10 day irrigation interval and 4 tha-1 processed poultry manure and NPK fertilizer combination of ten day irrigation interval and second place went to a 3 tha-1 processing poultry manure with NPK fertilizer, which yielded 801.00 g of seed per head and 1.60 ton seed output per hectare. In terms of sunflower growth and yield, all of the other treatments were found to be inferior. In comparison to other irrigation intervals and processing poultry manure treatments, a 10 day irrigation interval and 4 tha-1 processing poultry manure with adjusted amount of NPK fertilizers from 5 tha-1 poultry manure (recommended dose) exhibited more promising outcomes.
Keywords: Sunflower; Irrigation; Poultry manure; NPK fertilizer; Coastal region.