Vol. 11, Issue 2 (2022)

Author(s):
Priyanka Gurjar, Karan Vir Singh, Rajveer Singh Katoriya, Hirdesh Kumar and Rajesh Lekhi

Abstract:
Results of an experiment were conducted during the Rabi seasons of 2019 -20 and 2020-21 at R. V. S. K. V. V., Gwalior with fifteen treatment combinations of 3 seedling age (6 weeks, 7 weeks and 8 weeks) in main plot and 5 bio-fertilizer (un-inoculated, Azotobecter, Azotobecter+ PSB, Consortia (Azotobecter+ PSB + KMB) and Arka Microbial Consortium (Azotobecter+ PSB + ZSB) in subplot were tested in split-plot design in onion crop (Cv. Agrifound Light Red) with 3 replications. Pooled data of two years revealed that the maximum value of growth and yield attributes parameters of onion was recorded with 7 weeks age of seedling, Highest pooled marketable bulb yield (331.7 q) was noted with 7^th weeks old seedling age which was significantly higher to 6^h and 8^th weeks old seedling age. Bio-fertilizer applied treatments recorded significantly higher marketable bulb yield as compared to control. Maximum pooled marketable bulb yield (347.6 q) was recorded with Arka Microbial Consortium (Azotobecter + PSB + ZSB) which was significantly higher over rest of the treatments. Highest net income and B: C ratio were recorded under S₂: 7 weeks and BF₅: Arka Microbial Consortium treatments and as well as combination of both treatment.