Ishwar SinghAmit Kumar2017-11-202017-11-202017http://krishikosh.egranth.ac.in/handle/1/5810036022The field experiment was conducted during kharif 2016 at Rice Research Station, Kaul (Kaithal) of CCS Haryana Agricultural University, Hisar to study the effect of planting geometry and nitrogen levels on growth, yield and quality of non-scented rice variety HKR 127. The experiment consisted of four planting geometries viz. 15 cm x 15 cm, 20 cm x 15 cm, 30 cm x 20 cm and Farmer’s practice in main-plots and three nitrogen levels viz. 120, 150 and 180 kg/ha in sub-plots in split-plot design with four replications. Soil of the experimental field was sandy-clay-loam in texture, alkaline in reaction(pH 7.7), medium in organic carbon (0.51 %), low in available nitrogen (161 kg N/ha), medium in phosphorus (28 kg P2O5/ha) and high in potassium (378 kg K2O/ha). Plant height, number of tillers per m2, dry matter accumulation per m2, yield and yield attributes and nutrient (NPK) uptake in grain and straw increased significantly with close planting geometry (15 cm x 15 cm and 20 cm x 15 cm), while number of grains per panicle increased with wide planting geometry (30 cm x 20 cm and farmer’s practice). The maximum grain and straw yield (8670 and 10540 kg/ha, respectively) were recorded with medium planting geometry (20 cm x 15 cm). However, plant height, dry matter accumulation per m2, number of grains per panicle, straw and grain yield and nutrient uptake increased with increase in nitrogen levels from 120 to 180 kg N/ha. The maximum grain and straw yield (8703 and 11257 kg/ha, respectively) were recorded at 180 kg N/ha. Panicle length, 1000-grain weight, harvest index and quality parameters (hulling, milling and head rice recovery) were not affected significantly due to planting geometry and nitrogen levels, while nutrient (NPK) concentration in grain and straw was affected significantly by nitrogen levels but not by planting geometry. Highest gross return (Rs. 128,505/ha), net return (Rs. 57,694/ha and benefit:cost (B: C) ratio (1.81) were obtained with planting geometry of 20 cm x 15 cm spacing. The highest gross return (Rs. 128,148/ha), net return (Rs. 58,997/ha and B: C ratio (1.85) were obtained with 180 kg N/ha. However, the cultivation of rice variety HKR 127was found most economical when it was transplanted at spacing of 20 cm x 15 cm and supplied with150 kg/ha.ennullThesis