Effect of Phosphorus and Naphthalene Acetic Acid on Growth and Yield of Green Gram

Abstract

The field experiment entitled “Effect of Phosphorus and Naphthalene acetic acid (NAA) on growth and yield of Green gram” was conducted during Zaid, 2022 at Crop Research Farm, Department of Agronomy, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh. ‘The experiment was conducted in Randomized Block Design with ten treatments which are replicated thrice with three levels of application of Phosphorus 20, 40, 60 kg/ha and three levels of application of Naphthalene acetic acid 20, 40, 60 ppm and control. The different treatments combinations are T1: Phosphorus 20 kg/ha + Naphthalene acetic acid 20 ppm, T2: Phosphorus 20 kg/ha + Naphthalene acetic acid 40 ppm, T3: Phosphorus 20 kg/ha + Naphthalene acetic acid 60 ppm, T4: Phosphorus 40 kg/ha + Naphthalene acetic acid 20 ppm, T5: Phosphorus 40 kg/ha + Naphthalene acetic acid 40 ppm, T6: Phosphorus 40 kg/ha + Naphthalene acetic acid 60 ppm, T7: Phosphorus 60 kg/ha + Naphthalene acetic acid 20 ppm, T8: Phosphorus 60 kg/ha + Naphthalene acetic acid 40 ppm, T9: Phosphorus 60 kg/ha + Naphthalene acetic acid 60 ppm, T10: RDF:20-40-20 NPK kg/ha (Control) is used’. Results revealed that higher plant height (53.30), plant dry weight (12.52 g/plant), number of branches per plant (7.60), number of nodules per plant (21.60), number of pods per plant (22.93), number of seeds per pod (6.67), seed yield (1.36 t/ha), stover yield (2.46 t/ha), gross return (₹ 97,920.00/ha), net returns (₹ 65,689.00/ha) and B: C ratio was (2.04) were obtained by the application of Phosphorus at the rate 60 kg/ha along with Naphthalene acetic acid 60 ppm in Treatment-9.