Effect of different planting density and nitrogen levels on growth characters and yield of rice (Oryza sativa) grown under eastern Uttar Pradesh

Abstract

The experimental result revealed that different planting geometry and level of nitrogen had a remarkable influence on almost all the growth characters and yield of rice. Growth characters, viz. plant height, number of tillers/m2, Leaf area index, dry matter accumulation/m2 were increased significantly with the increasing level of nitrogen from 0 to 180 kg/ha in both of year. On the other hand, plant spacing (20cm x 10cm) and produced significantly higher grain yield (3.95 t/ha in 2017 and 4.65 t/ha in 2018). The highest grain and straw yields were recorded with the treatment of 20 cm × 10 cm plant spacing and 180 kg N/ha in 2017 and 2018 respectively.