Study the effect of land configuration and integrated nutrient management on yield attributes and yield of different varieties of sorghum (RABI) grown on coastal salt affected soils

Abstract

A field experiment to study the effect of land configuration and integrated nutrient management on yield attributes and yield of different varieties of sorghum (rabi) grown on coastal salt affected soils at Coastal Soil Salinity Research Station, Danti-Umbharat (Navsari Agricultural University, Navsari) in Gujarat during rabi 2011-12 to 2011-12. Significantly superior girth of earhead, number of grains per earhead, test weight, grain and stover yields were recorded when sorghum was sown on raised bed as compared to flat bed sowing. The mean grain yield advantage under raised bed sowing was 13.31 per cent over flat bed. Yield attributes and yield were significantly affected due to different varietal treatments. Variety GJ-38 recorded significantly higher length of earhead, number of grains per earhead, grain (3420 kg ha-1) and stover (8481 kg ha-1) yields While, stem girth was significantly superior in variety BP-53. INM levels also showed discernible influence on yield attributes and yield of sorghum. Application of 100 % recommended dose of fertilizer (80-40-00 NPK kg ha-1) + FYM @ 10 t ha-1 was found good and remarkably improved grains per earhead, grain yield and stover yield. The magnitude of increase in grain yield was 12.13 per cent over 100 % RDF and 15.64 per cent over 75 % RDF alongwith FYM @ 10 t ha-1, respectively.