Soil sample collection and some physical and chemical properties- Soil sample (0-15cm depth) were collected from Dhamrai Upazila following composite sampling method. The sample was air-dried and ground and sieved through 2 mm sieve. The soil had a pH of 7.54 (Jackson, 1965), electrical conductivity 49.9 ds/m (Jackson, 1965), organic carbon 0.16 % (Walkley and Black, 1934), organic matter 0.27%, available nitrogen 0.016% (Kjeldahl extraction; Jackson, 1965), available phosphorus 0.042% (blue color method using ascorbic acid, Olsen et al. 1954), exchangeable potassium 0.030% (Pratt, 1965), available sulphur 0.0048% (Turbidimetric method, Bardsley and Lancaster, 1965). The concentrations of total iron were 2310 mg/kg, manganese 421 mg/kg, zinc 75 mg/kg, and copper 26 mg/kg were determined using an atomic absorption spectrophotometer followed by Mordtvedt et al. (1991). Preparation and properties of vermicompost- Vermicompost was prepared and collected from the crop field of the Soil Resource Development Institute (SRDI). In this process, the digestive tracts of certain earthworm species (e.g. Eisenia fetida) were used to stabilize cow dung. The final product is odorless peat-like substance. Pot experiment- A pot experiment was carried out in the net house of the Department of Soil, Water and Environment, University of Dhaka. Eight kilograms of air-dried soil were placed in 10 kg capacity pot providing a drainage hole at the bottom. Eight treatments with three replications were as follows: control (-B and VC), VC5 ton/ha, B0.5 kg/ha, B1.0 kg/ha, B1.5 kg/ha, B0.5 kg/ha+VC5 ton/ha, B1.0 kg/ha+VC5 ton/ha, and B1.5 kg/ha + VC5 ton/ha. Pots were arranged in a completely randomized design (CRD). Urea, TSP, and MP fertilizers were applied in quantities of 20 kg/ha, 15 kg/ha and 30 kg/ha, respectively in each pot as basal dose. Boron was used as boric acid. Certified seeds of Chilli, (Capsicum annum L.) were collected from ‘quality seed company’, Siddique Bazar, Dhaka. Three healthy seeds were sown to each pot and water was applied up to field capacity. One healthy seedling was kept in each pot. The pots were watered thrice a week in the morning. Plant height, the number of leaf and leaf area per plant were recorded at 60 and 120 days. Harvesting- The plants were harvested as root, stem, leaf and fruit. The roots were washed with tap water and finally with distilled water to remove any adhering particles on the root surface. Samples were air-dried in room temperature and finally oven-dried at 650 C for 48 hours in the laboratory. The dry weight of the samples was recorded and the samples were ground with a mechanical grinder and stored in plastic containers for further chemical analysis. For nitrogen, 0.5 g of yield (fruit) sample was digested in a Kjeldhal digestion flask (Jackson, 1965), for P and K 0.5 g yield (fruit) was digested (Jackson, 1965). Phosphorus of the digest was determined by vanadomolybdophophoric yellow color method at 430 nm using a spectrophotometer (model DR 5000). Potassium in the digest was determined by using JENWAY flame photometer (model PFP 7). For sulfur 0.5 g yield (fruit) sample was digested with HNO3-HClO4 acid. After digestion, the extract was used to determine the total sulfur content by turbidimetric method (Bardsley and Lancaster, 1965). For total Cu, Fe, Zn and Mn were determined by the atomic absorption spectrophotometer (VARIAN AA240). LSD tests of the result were performed using IBM SPSS, version 25.