Influence of biofertilizer and nano urea on growth and yield of sorghum

A field experiment was conducted during Kharif season of 2024 at Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences to “Influence of biofertilizer and nano urea on growth and yield of sorghum (Sorghum bicolor L)”. The treatments consisted of three levels of Biofertilizer (Azotobacter-25 g/kg, Azospirillum-45 g/kg, Azotobacter + Azospirillum), Nano urea (2, 3, 4 ml/l) along with recommended doses of fertilizer and a control (80-40-40 kg N-P-K/ha). The results revealed that the significantly higher plant height (132.5 cm), higher plant dry weight (46.65 g), higher test weight (26.40 g), higher seed yield (2.30 t/ha), higher stover yield (6.18 t/ha) were recorded in treatment 5 [Azospirillum 45 g/kg + Nano urea 3 ml/l] and higher length of ear head (26.75 cm) were recorded in treatment 3 [Azotobacter 20 g/kg + Nano urea 4 ml/l].