Effect of nitrogen doses and row spacing on growth and seed yield of coriander (Coriandrum sativum L.)

The present investigation was carried out during Rabi season of 2017-2018 at the Horticulture complex, Department of Horticulture, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.). The treatment combinations consisting of five levels of nitrogen (50, 60, 70, 80 and 90 kg N ha-1) and three row spacing (30, 40 and 50 cm) replicated thrice. Highest growth characters were higher in the treatment combination N5S3 (N: 90 kg N ha-1, S: 50X10 cm) viz., number of branches, total biomass production of the plant on dry weight basis(g), days taken to 50% flowering, Days taken to maturity and yield attributes the treatment combination N5S3 (N: 90 kg N ha-1, S: 50X10 cm) viz., umbels plant-1, umbellets plant1, seeds umbel-1, test weight (g), Seed yield plant-1 (g). Maximum seed yield of 16.66 q ha-1 was obtained in coriander (Jawahar Dhaniya -2) with treatment combination N5S1 (N: 90 kg N ha-1, S: 30X10 cm) and maximum net return of Rs 79,221.06 ha-1 and cost benefit ratio 1:3.11.