Influence of different dates of sowing and spacings on growth and yield of scented rice cv. pusa sugandh-3 under temperate conditions of Kashmir

摘要

A field experiment was conducted during kharif seasons of 2013 and 2014 to determine the effect of different dates of sowing and spacing on growth and yield of scented rice (Pusa sugandh -3) under temperate condition of Kashmir. The soil of the experimental field was silty clay loam in texture with neutral pH, low in available nitrogen and medium in available phosphorus and potassium. The experiment comprised of 9 treatments, viz D1S1 (15th meteorological week (10th April) + (20 cm x 20 cm), D1S2 (15th meteorological week (10th April) + ( 20 cm x 15 cm), D1S3 (15th meteorological week (10th April + (15 cm x15 cm), D2S1 (16th meteorological week (20th April ) + (20 cm x 20 cm), ), D2S2 (16th meteorological week (20th April) + ( 20 cm x 15 cm), D2S3 (16th meteorological week (20th April + (15 cm x 15 cm), D3S1 (18th meteorological week (30th April) + (20 cm x 20 cm),D3S2 (18th meteorological week (30th April) + (20 cm x 15 cm), D3S3 (18th meteorological week (30th April + (15 cm x 15 cm) were laid out in a split plot design with 3 replications on plot size of 10 m2. The growth parameters such as plant height, number of tillers hill-1, SPAD and dry matter production was also observed significantly high in D1S2 with average. Grain yield (48.01 q ha-1), straw yield (77.26 q ha1) were seen significantly higher in D1S2 (15th meteorological week 10th April and 20 cm x 15 cm) compared to other treatments. The yield attributes like number of panicles m-2, number of grains panicle-1, 1000-grain weight (g) and harvest index (%) was seen significantly higher in D1S2. The economic analysis showed that treatment D1S2 showed maximum benefit cost ratio (3.32) followed by D1S1 respectively.