Significance of bio-fertilizer incorporation with customized organic manures to reduce inorganic nutrients on growth dynamics, bulb yield and economics of Onion (Allium cepa L.) under the western undulating zone of Odisha

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Research Articles | Published:

Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Pub Email:
Doi: 10.1007/s42535-022-00367-6
First Page: 923
Last Page: 934
Views: 239

Keywords: Azospirillium , Inorganic fertilizer, Onion, Organic manure, Phosphobacteria


Crop productivity is challenged by a growing population and shrinking arable land. Contrarily, imbalanced nutrition decreases productivity and deteriorates soil fertility. We can only address this issue by quantifying the integration of biofertilizers with organic and inorganic nutrients. Keeping this in mind, an experiment was carried out during the years 2018–2019 and 2019–2020 at the Regional Research and Technology Transfer Station, Bhawanipatna, Kalahandi under the western undulating agroclimatic zone of Odisha. Using a randomized block design, the experiment was replicated four times with eight treatments using different doses of biofertilizer inoculated organic manures and inorganic fertilizers. Onion variety N-53 was grown with 150: 60: 80: 30 kg ha−1 of N: P2O5: K2O: S as recommended dose of fertilizer (RDF). Results revealed that the integration of 50% RDF i.e. 75: 30: 40: 15 kg ha−1 of N: P2O5: K2O: S along with the biofertilizer (Azospirillium and Phosphobacteria @ 5 kg ha−1 each) incorporated farmyard manure (5 t ha−1) and vermicompost (1.25 t ha−1) produced better vegetative growth, comparatively higher bulb weight (77.7 g), maximum marketable bulb yield (225.3 q ha−1) and total bulb yield (279.6 q ha−1) among all other nutrient combinations. This nutrient combination produced 27.2% higher total bulb yield and earned 46.4% higher monetary return than the farmer’s practice (120:50:50 kg ha−1 N: P2O5: K2O). Hence, the application of 50% RDF along with bio-fertilizers inoculated farmyard manure (5 t ha−1) and vermicompost (1.25 t ha−1) can be suggested for getting maximum bulb yield in onion under the western undulating zone of Odisha.

              , Inorganic fertilizer, Onion, Organic manure, 

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Author Information

Sahoo Bibhuti Bhusan
Regional Research and Technology Transfer Station (OUAT), Kalahandi, India
Nayak Bhabani Shankar
Regional Research and Technology Transfer Station (OUAT), Kalahandi, India

Mohanty Susanta Kumar
Regional Research and Technology Transfer Station (OUAT), Kalahandi, India

Khanda Chandramani
Regional Research and Technology Transfer Station (OUAT), Bhubaneswar, India