Vol. 11, Issue 7 (2022)

Author(s):
Magan Singh, AS Harika, PS Oberoi and Susanta Dutta

Abstract:
A field experiment of two years was undertaken during kharif (rainy) season of 2012 and 2013 at Forage Research and Management Centre of ICAR-National Dairy Research Institute (NDRI), Karnal on “Efficiency of Nutrient Utilization in Teosinte fodder production under nitrogenous and phosphatic fertilizer application” with the objective of assessing nutrient management practices on the basis of nutrient (N & P) uptake by plant, nutrient use efficiencies (NUEs) and profitable teosinte fodder production with the determination of green fodder yield (GFY), Net return(NR), benefit cost ratio, physical optimum dose (POD) and economical optimum dose (EOD).The experiment was laid out in split plot design with five doses of N (0, 40, 80, 120 and 160 kg ha^-1) in main plots and three P₂O₅ doses (0, 30 and 60 kgha^-1) in sub plots consisted of 3 replications. Teosinte cultivar ‘Bihar local’ was taken as a test fodder crop. The maximum nutrients (N&P) uptake, highest green fodder yield and maximum profit regarding net return and benefit cost ratio of teosinte fodder production were obtained with the application of 160 kg N ha^-1 and 60 kg P₂O₅ ha^-1. The results revealed that highest apparent recovery efficiency (ARE), Agronomic efficiency (AE), production efficiency (PE) and partial factor productivity (PFP) of nutrients (N&P) was obtained with the application of lowest rate of nutrients (40 kg N & 30 kg P₂O₅ ha^-1) for teosinte fodder production.