Growth, nutrient uptake and yield of wheat (Triticum aestivum) as influenced by biofertilizers and nitrogen

Kachroo, D.; Razdan, R.

Indian Journal of Agronomy 51(1): 37-39


ISSN/ISBN: 0537-197X
Accession: 012134398

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A field experiment was conducted during the winter season of 1999-2000 and 2000-01 at research farm, Sher-e-Kashmir University of Agricultural Sciences and Technology, R.S. Pura, Jammu, to study the effect of biofertilizers and nitrogen levels on growth, yield attributes, yield and nitroigen-use efficiency of 'PBW 343' wheat (Triticum aestivum L. emend. Fiori & Paol). Combined inoculation of Azotobacter + Azospirillum in 1 : 1 ratio increased the growth, yield attributes and yield significantly. The nitrogen-use efficiency values also were higher. Each unit increase in N level led to significant increase in growth, yield-attributing characters and yield of wheat. The maximum grain yield (53.55 q/ha) was recorded with highest N level. The nitrogen-use efficiency (NUE), apparent N recovery (%), nitrogen-efficiency ratio (NER) and physiological efficiency index of absorbed nitrogen (PEIN) were higher up to 80 kg N/ha and thereafter decreased with increasing N level.