Determination of Yield Parameters of Barley (Hordeum vulgare L.) Inoculated with Phosphorous-Solubilizing and Nitrogen-Fixing Bacteria
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Igdir University, Faculty of Applied Sciences, Department of Organic Farming Business Management, Igdir, Turkiye
Kayseri University, Safiye Cikrikcioglu Vocational School, Department of Plant and Animal Production, Talas-Kayseri, Turkiye
Atatürk University, Faculty of Agriculture, Department of Field Crops, Erzurum, 25240, Turkiye
Submission date: 2023-06-20
Final revision date: 2023-08-10
Acceptance date: 2023-09-08
Online publication date: 2023-12-04
Publication date: 2024-01-22
Corresponding author
Özcan Çağlar   

Department of Organic Farming Business Management, Igdır University, 76000, Iğdır, Turkey
Pol. J. Environ. Stud. 2024;33(2):1033-1042
Chemical fertilizer use efficiencies should be increased to reduce fertilizer quantities and potential negative impacts of excessive uses on soil and environmental health. Therefore, alternative soil nutrient sources are searched for and biological alternatives offer promising outcomes in this sense. In this study, effects of single, dual and triple combinations of phosphorous-solubilizing (Bacillus megatherium var. phosphaticum [ M-13]) a nd N -fixing b acteria ( Stenotrophomonas maltophilia [82] and Ralstonia pickettii [73]) treatments on plant growth, yield and yield component of barley were investigated and potential effects were compared with chemical fertilizers (N (80 kg ha-1 N ), P (50 k g h a-1 P205) and N+P (80 kg ha-1 + 50 kg ha-1 P205) and Control treatments. The longest grain filling period was obtained from Ralstonia pickettii, Stenotrophomonas maltophilia and Bacillus megatherium var. phosphaticum + Stenotrophomonas maltophilia bacteria treatments. The highest number of spikes per m2, 1000-kernel weight, and test weight values were obtained from sole N treatments, the highest number of kernels per spike, protein content, grain yield, and biological yield from N+P treatments and the highest harvest index values from Ralstonia pickettii + Stenotrophomonas maltophilia treatments. In general, bacterial treatments resulted in significant changes in yield and yield parameters of barley and significant increases were achieved as compared to the Control.
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