Effect of integrated nutrient management on growth parameters, yield attributes and yield of sorghum (Sorghum bicolor L.)

Abstract

In order to investigate the effects of fertilizer, organic manure and biofertilizer on the growth and yield of sorghum, a field experiment was carried out in plot number 11 at College Farm, Navsari Agricultural University, Campus Bharuch, during the kharif 2024. A factorial randomized block design with three replications and twelve treatments was used to set up the field experiment. The treatments include three levels of fertilizer [ F1: control (no RDF), F2: 50% RDF and F3: 100% RDF], two levels of organic manure [ O1: FYM 5 t/ha, O2: VC 2.5 t/ha] and two levels of biofertilizer [B1: no biofertilizer, B2: biofertilizer (Azatobacter + PSB) as seed treatment (10 ml/kg seed)]. In comparison to all other factors, the highest growth parameters (plant height, number of leaves per plant, ear head length and internode length) and yield attributes (test weight, grain weight per ear head, grain yield and straw yield) were recorded with 100% RDF, vermicompost @ 2.5 t/ha and biofertilizer (Azatobacter + PSB) as seed treatment (10 ml/kg seed).