A pot experiment was carried out on the rooftop of Charfasson Upazila in the Bhola district to evaluate the growth and yield performance of strawberry (Fragaria ananassa) under different doses of vermicompost in the winter season of 2020 - 2021. Soil samples (0-15 cm depth) were collected from the Research Farm of Charfasson Government College, Bhola, Bangladesh. The soil had a pH of 8.15 (1 : 2.5 w/v H2O), organic carbon 0.58%, available nitrogen 0.22% (Kjeldahl extraction method) (5) , available phosphorus 0.07%(6) , available potassium 1.21%(7) , available S 0.16%(8), sand 11.3%, silt 51.04% and clay 37.66%, textural class- silty clay loam, the maximum water retentive capacity was 39%, respectively.
A pot experiment was carried out on the rooftop of Charfasson Upazila in the Bhola district to evaluate the growth and yield performance of strawberry (Fragaria ananassa) under different doses of vermicompost in the winter season of 2020 - 2021. Soil samples (0-15 cm depth) were collected from the Research Farm of Charfasson Government College, Bhola, Bangladesh. The soil had a pH of 8.15 (1 : 2.5 w/v H2O), organic carbon 0.58%, available nitrogen 0.22% (Kjeldahl extraction method) (5) , available phosphorus 0.07%(6) , available potassium 1.21%(7) , available S 0.16%(8) , sand 11.3%, silt 51.04% and clay 37.66%, textural class- silty clay loam, the maximum water retentive capacity was 39%, respectively.
Intercultural practices, i.e., weeding, spading, mulching, pesticide, etc., were applied as and when needed. Different agronomic parameters viz. plant height, leaf number, leaf area, leaf area index, first flowering days, the number of fruits, length of fruits, the girth of plants, and the number of runners were counted at the intervals of 30, 60, 90 and 120 days after sowing of seeds. Leaf area and leaf area index were determined using the formula as follows: Leaf area = length × width of leaf and Leaf area index = leaf area/ground area. Different organs of strawberry plants, viz. crown, root, leaf, petiole and reproductive structures, were collected and measured the fresh weight and dry weight drying in an oven at a temperature of 65oC for 72 hours. Benefit/Cost ratio was determined following standard formula, i.e. (yield t/ha × selling rate Tk./ha) and Cost of cultivation in Taka = Net return in taka and then set B:C ratio. Statistical analysis was done using SPSS software.