Vol. 9, Special Issue 9, Part Z (2025)

A field experiment entitled “Effect of nano urea on growth and yield of Tomato (Solanum lycopersicum L.) in Bemetara district of Chhattisgarh” was conducted at Department of Horticulture, Government Nursery, Mohgaon, Saja, Bemetara (C.G.) during kharif 2024-25. The trial was laid out in CRD with three replications and eight nutrient management practices: T₀ - Control, T₁ - 100% RDF (NPK), T₂ - 100% RDF (P₂O₅, K₂O) + 75% N basal + 1 foliar spray Nano N at 30 DAT, T₃ - 100% RDF (P₂O₅, K₂O) + 50% N basal + 2 sprays Nano N at 30 & 45 DAT, T₄ - 100% RDF (P₂O₅, K₂O) + 25% N basal + 3 sprays Nano N at 30, 45 & 60 DAT, T₅ - 100% RDF (P₂O₅, K₂O) + 4 sprays Nano N at 15, 30, 45 & 60 DAT, T₆ - 100% RDF (P₂O₅, K₂O) + 50% N basal + 25% N top dressing (30 DAT) + 1 spray Nano N at 45 DAT, and T₇ - 100% RDF (P₂O₅, K₂O) + 25% N basal + 25% N top dressing (30 DAT) + 2 sprays Nano N at 45 & 60 DAT. Growth parameters (plant height, branches, leaves, days to flowering) and yield attributes (flowers, fruit sets, clusters, fruits per plant, fruit diameter, weight, and yield) were recorded. Results showed that T₃ (100% RDF (P₂O₅, K₂O) + 50% N basal + 2 sprays Nano N at 30 & 45 DAT) gave maximum plant height, leaves, branches, clusters, fruit set, fruit diameter, average fruit weight, and yield, followed by T₆ (100% RDF (P₂O₅, K₂O) + 50% N basal + 25% N top dressing at 30 DAT + 1 spray Nano N at 45 DAT). Earliness and yield were significantly highest in T₃, with intermediate results in T₂ and T₁. Lower yields occurred in T₄, T₅ and T₇, while the minimum was in control (T₀).