Response of planting geometry and nutrient management on growth, seed yield and economics of coriander (Coriandrum sativum L.)

A field experiment was conducted at Krishi Vigyan Kendra, Pahanda-A, Durg (C.G.) during the rabi seasons of 2022-23 and 2023-24. The study evaluated the effects of three planting geometries-G1-20 x 15 cm, G2- 30 x 10 cm and G3- 40 x 7.5 cm and five nutrient management treatments included: N1-100% RDN (80, 60, and 40 kg of N, P2O5, and K2O ha-1), N2-125% RDN, N3-75% RDN + foliar spray of nano urea at 60 and 75 DAS, N4- 100% RDN + foliar spray of nano urea at 60 and 75 DAS and N5-100% RDN + foliar spray of water-soluble fertilizer (19:19:19) at 60 and 75 DAS on coriander. The experimental design was a split-plot with planting geometry as the main plot and nutrient management as the sub-plot factor. The results indicated that the 20 x 15 cm planting geometry and nutrient management, 100% RDN + foliar spray of water-soluble fertilizer (19:19:19) at 60 and 75 DAS were recorded the highest growth parameter, seed yield and economic values (Gross and net returns, and benefit- cost ratio) of coriander. Conversely, the lowest values for these characteristics were recorded with the 40 x 7.5 cm planting geometry and nutrient management treatment 75% RDN + foliar spray of nano urea at 60 and 75 DAS.