Influence of nitrogen and potassium on growth and yield of chilli (Capsicum annuum L.) Babanjeet*, Talwar Dilpreet, Singh Kulbir, Jindal Salesh Kumar Department of Vegetable Science, PAU, Ludhiana, Punjab *Corresponding author, Email: babanjeet-vs@pau.edu
Online Published on 14 September, 2022. Abstract The present investigation was conducted during 2019–20 and 2020–21 to study the effect of nitrogen and potassium on growth, yield of chilli. The experiment was conducted in randomized complete block design and replicated thrice. The experiment comprised twelve treatments combination of four nitrogen doses (0, 75, 100 and 125 kg/ha) and three potassium (0, 30 kg/ha as basal and KNO3 @ 2% as spray). Two equal splits of nitrogen i.e., one at the time of transplanting and remaining at first picking were applied in case of 75 kg/ha N. However, for 100 and 125 kg N/ha application was applied in three equal splits i.e., first at the time of transplanting, second and third at first and third picking of chilli. Foliar application of KNO3 was applied thrice i.e., at the time of flowering, first and third picking of chilli. Potassium nitrate (KNO3) @ 2% along with nitrogen 100 kg/ha and potassium 30 kg/ha was proved to be significantly higher in growth and yield contributing parameters such as plant height, leaf area index, days to 50% flowering, average fruit weight, and number of fruits/plant. There was higher green and red ripe fruit yield of 8–18% and 20–22% respectively in chilli during both seasons. So, 100 kg nitrogen per hectare in three splits and 30 kg potassium per hectare along with three foliar sprays of KNO3 @ 2% in chilli was proved suitable for production of chilli under North Indian conditions. Top Keywords Chilli, Nitrogen, Potassium, Foliar Application, Days to 50% flowering. Top |