GESUNDE PFLANZEN PFLANZENSCHUTZ, VERBRAUCHERSCHUTZ, UMWELTSCHUTZ, vol.0, no.0, pp.1-9, 2022 (SCI-Expanded)
In the present study, effects of single, dual and triple combinations of
phosphorus-solubilizing (Bacillus
megatherium var. phosphaticum [M-13]) and N-fixing bacteria (Stenotrophomonas maltophilia [82] and Ralstonia pickettii [73]) treatments
were compared with chemical fertilizer and control treatments with regard to
barley efficiency parameters. Efficiency parameters of dual bacteria
inoculation treatments yielded closer outcomes to chemical fertilizers and as
much as 69.9% N uptake efficiency, 92.5% N translocation efficiency, 70.7% N
use efficiency, 87.9% agronomic efficiency, 87.4% physiological efficiency,
87.9% water use efficiencies for grain and 78.7% water use efficiency for
biomass of chemical fertilizers (N+P recommended dose) were achieved with dual
(73 + 82) bacteria treatments. Nitrogen-fixing dual bacteria treatment (73 +
82) was followed by triple bacteria combination (73 + 82 + M3). Combined
bacteria treatments offered environmental friendly practices for soil
enhancement and improved yield levels in organic barley farming. Therefore,
combined bacterial applications (73 + 82 and 73 + 82 + M3) can be recommended
as an alternative fertilization method in organic barley farming.