Influence of sowing dates and nitrogen levels on growth, yield and quality of scented rice cv. Pusa Sugandh-3 in Kashmir valley

Abstract

A field experiment was carried out to determine the optimum sowing date and nitrogen (N) level for the scented rice cv. Pusa Sugandh-3. Twelve treatment combinations of 3 sowing dates, viz., 15th, 16th and 18th standard meteorological week (SMW) at an interval of 10 days and 4 nitrogen levels (‘0’, ‘40’, ‘60’ and ‘80’ kg N ha-1) were tested randomized in split plot design with three replications. Significant highest plant height (98.56 cm), tillers m-2 (333.41), dry matter (98.38 q ha-1), panicles m-2 (310.05), spikelets panicle-1(130.25) and grains panicle-1 (98.55), grain yield (45.2 q ha-1), harvest index (41.20 %), head rice recovery (47.5 %) and B:C ratio (3.03) were recorded for the early sown 15th SMW crop. Among the different nitrogen levels tested significant highest plant height (98.12 cm), tillers m-2 (342.33) dry matter (100.68 q ha-1), panicles m-2 (321.83), spikelets panicle-1(132.83) grains panicle-1 (96.79), grain yield (48.0 q ha-1), harvest index (42.68 %), head rice recovery (44.54 %) and B:C ratio (3.38) were recorded with the application of 80 kg N ha-1.Therefore, the variety, Pusa Sugandh-3 should be sown earlier in season from 15th to 16th SMW and with nitrogen application of 60-80 kg N ha-1 for realizing economically higher grain yield and profit under the temperate climatic conditions of Kashmir valley.

Performance of Pre Released Rice (Oryza sativa L.) Genotypes under Different Sowing Windows in Rabi Season

“…A linear negative correlation between sowing dates and growth period, in the later sowing dates was also reported by Peng-fei et al [14]. Wani et al [15], reported the days taken to reach flowering and harvest varied significantly among the sowing dates.…”

Influence of Different Planting System and Levels of Nitrogen on Growth, Yield, Quality and Economics of Rice (Oryza sativa L.) - A Review

“…Basmati rice yield significantly increased from 1.7 t ha -1 (control) to a maximum of 9.4 t ha -1 (90 kg N ha -1 ) before declining to 5.8 t ha -1 (150 kg N ha -1 ) in the order: 0 < 30 < 60 < 150 < 120 < 90 kg N ha -1 respectively Moro et al, (2015). Similar findings are also confirmed Wani et al, (2016).…”

Grain Yield and Agro-Climatic Indices of Rice Cultivars Transplanted in Different Dates in Mid-Western Tarai, Nepal

“…The difference in the maturity time among tested cultivars were due to their genetical varietal characters. The early seeding of rice of all cultivars needing the maximum number of days may be due to sufficient temperature and adequate solar radiation during the growth period (Wani et al, 2016).…”