Vol. 11, Issue 7 (2022)

Author(s):
Amar Singh, Amit Singh Tiwari and Rajeev Kumar Tiwari

Abstract:
A field experiment was conducted during Kharif season in 2021-2022 at the Research farm, Department of Agronomy, AKS University, Satna (M.P.), to evaluate the effect of nitrogen levels and dates of sowing on growth, yield and quality of direct seeded paddy (Oryza sativa L.). The experiment was laid out in Factorial Randomized Block Design comprising four nitrogen levels viz. 00kg N ha^-1, 80kg N ha^-1, 100kg N ha-1, 120kg N ha-1 and three dates of sowing viz. 10^th July, 20^th July, 30^th July and treatments were replicated thrice. Results revealed that different levels of nitrogen affected the growth parameters as well as yield attributes and yield of direct seeded paddy. Incorporation of 120kg N ha^-1 (N3) recorded maximum plant height at 90 DAS (74.55cm), number of tillers plant-1 at 90 DAS (9.89), number of panicles plant^-1 (4.8), length of panicles (19.49cm), grain yield (30.79 q ha-1), straw yield (71.81 q ha-1), test weight (26.64g), and protein content (10.24%), however, number of leaves plant^-1 at 90 DAS (37.38) and harvest index (30.41%) were higher with incorporation of 100kg N ha-1. Among different sowing dates, maximum number of tillers per plant at 90 DAS (9.22), number of leaves per plant at 90 DAS (34.47), grain yield (25.24q ha-1), test weight (25.69g), harvest index (30.04%), and protein content (9.98%) were observed when crop was sown on 10^th July (D1). However, plant height at 90 DAS (66.29cm), number of panicles plant^-1 (3.88), length of panicles (17.01cm) and straw yield (60.11q ha^-1) were maximum when sowing was done on 20^th July (D2).