Influence of planting geometry and nitrogen levels on nutrient content, uptake and soil fertility status in scented rice (Oryza sativa L.)

An experiment was carried out during kharif 2018 at Research Farm, College of Agriculture, Kaul (Kaithal) to study the influence of planting geometry and nitrogen levels on nutrient (N, P and K) content, uptake and soil fertility status under scented rice (Pusa 1121). The experiment was conducted using split plot design with four replications having three planting geometry in main plots and five nitrogen levels in sub plots. Grain and straw yield were significantly higher at 20 cm x 15 cm and 120 kg N/ha. N, P and K concentrations in grain and straw were non-significant with planting geometry. However, these concentration increases significantly with increase in nitrogen level and maximum at 120 kg N/ha. N, P and K uptake by both grain and straw were significant at planting geometry 20 cm x 15 cm and nitrogen rate of 120 kg/ha. The available N, P₂O₅ and K₂O of experimental field before cultivation were 163, 27 and 379 kg/ha, respectively. N, P₂O₅ and K₂O content in soil after cultivation was higher under 30 cm x 20 cm. However, N content in soil after cultivation was maximum at 120 kg N/ha, but P₂O₅ and K₂O content was in control.