The present investigation was carried out at main horticulture research farm of Post Graduate College Ghazipur, . during the winter season of year 2015-16. The application of nitrogen along with Azospirillum increased the growth and yield of onion. Two biofertilizer treatments (B0=control and B1= Azospirillum) was treated at four different levels of nitrogen (N0= no nitrogen, N1= 80kg ha-1 , N2= 100kg ha-1 , N3= 120kg ha-1 ) on onion cv. Pusa Red. The experiment was conducted in randomized block design with 3 replications. The maximum plant height cm, leaf length cm, number of leaves per plant , diameter of bulb cm, weight of bulb g, bulb yield ( ha-1 ) was found by applying 120 kg ha-1 along with (B1N3) Azospirillum. However, the maximum yield was recorded ( q h-1 ) with rest doses of nitrogen and Azospirillum. | Response of nitrogen and Azospirillum inoculation on growth and yield of onion (Allium cepa L.) cv. pusa red
