Vol. 11, Issue 12 (2022)

Author(s):
Sonal Athnere, PC Chaplot, Pinky Yadav and Kamal Garg

Abstract:
A field experiment was conducted during 2020-21 and 2021-22 on clay loam soil having low in available nitrogen (278.36 to 279.42 kg ha^-1), medium in available phosphorus (18.73 to 20.39 kg ha^-1) and high in available potassium status (328.40 to 332.72 kg ha^-1) with slightly alkaline in reaction at the Instructional Farm, Department of Agronomy, Rajasthan College of Agriculture, MPUAT, Udaipur during rabi season 2020-21 and 2021-22 with the objective to evaluate the response of malt barley to fertility levels and biofertilizers. The experiment was laid out in randomized block design (Factorial) with 15 treatment combinations comprised of three fertility levels i.e. application of 70 kg N+40 kg P₂O₅ +25 kg K₂O ha^-1, 60 kg N+30 kg P₂O₅ +20 kg K₂O ha^-1 and 50 kg N+25 kg P₂O₅ +15 kg K₂O ha^-1 with five liquid biofertilizers i.e. control, Azotobacter, PSB, KMB and Azotobacter + PSB + KMB. The result revealed that malt barley crop fertilized with 70 kg N+40 kg P₂O₅ +25 kg K₂O ha^-1 recorded highest number of filled spikelets ear^-1 (55.35) which was significantly higher over rest of fertility levels. Further the results showed that seed inoculation with liquid biofertilizers Azotobacter + PSB + KMB significantly improved filled spikelets ear^-1 (55.21) of malt barley crop.