Combined Effects of Organic Manures and Chemical Fertilizers on Growth and Yield of Red Capsicum (Capsicum Annuum L.) Grown at Rooftop

Abstract

A pot experiment was conducted to evaluate the effects of organic manures and inorganic fertilizers on the growth and yield of red capsicum (Capsicum annuum L.). It was conducted on rooftop of a building in Bogura town, Bogura. The experiment consisted of twelve treatments with three replications and was laid out in Randomized Complete Block Design (RCBD). Treatments were T₁: Control (-OM and -NPK), T₂: 4 ton Nafco ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₃: 4 ton ACI ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₄: 4 ton Trichocompost ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₅: 4 ton Kazi Farms ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₆: 4 ton Mimpex ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₇: 4 ton Mazim ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₈: 4 ton McDonald ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₉: 4 ton Paragon ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₁₀: 4 ton Kazi Agro ha^-1 + N₂₃P₁₀K₂₅ kgha^-1, T₁₁: 4 ton Vermicompost ha-1 + N₂₃P₁₀K₂₅ kgha^-1 and T₁₂:N₄₆P₂₀K₅₀ kgha^-1. Highest plant height (33.81 cm), leaf area (87.22 cm² plant-1), number of leaves (43 plant-1), number of branches (6 plant-1), number of fruits (11 plant-1), fresh weight (0.60 g plant-1) and dry weight (12.67 g plant-1) were observed in treatment T₄: 4 ton Trichocompost ha^-1 + N₂₃P₁₀K₂₅ kgha^-1. Highest girth (3.18 cm) was observed in treatment T₇: 4 ton Mazim ha^-1 + N₂₃P₁₀K₂₅ kgha^-1. The overall best growth performance was achieved in T₄: 4 ton Trichocompost ha^-1 + N₂₃P₁₀K₂₅ kgha^-1 treatment.

Dhaka Univ. J. Biol. Sci. 31(1): 9-18, 2022 (January)