PJB-2022-51
RESPONSE OF BEAN TO PLANT GROWTH PROMOTING RHIZOBACTERIA UNDER DIFFERENT LEVELS OF PHOSPHORUS
Olcay Filiz
Abstract
The field experiment was conducted during 2017 and 2018 in the experimental area of the Faculty of Agriculture, Eskisehir Osmangazi University, Eskisehir, Turkey. It was designed as a factorial arrangement in a randomized complete block design with three replications. The effect of three phosphorus doses (0, 30, and 60 kg ha-1 P2O5) with a control and different commercial biofertilizers (Bontera (Bacillus amyloliquefociens, Bacillus pumilus, Bacillus subtilis, Bacillus licheniformis, Bacillus megaterium, Trichoderma harzianum, Trichoderma kanigi), Bactoboost (Bacillus subtilis, Bacillus magaterium, Loctococcus spp.), Koklendirici (Bacillus subtilis, Bacillus magaterium, Loctococcus spp.), Lifebac NP (Bacillus subtilis, Bacillus magaterium), NSAH (15% organic matter, 6% organic carbon, 13% humic + fulvic acid), and Rhizobia (Rhizobium leguminosorum)) were investigated. Increasing phosphorus doses positively affected all the investigated characters. Koklendirici biofertilizer positively affected the important yield components, but highest grain yield were determined in the NSAH plots. Increasing phosphorus (P) doses did not affect nitrogen (N), potassium (K), magnesium (Mg), and copper (Cu) contents while phosphorus, calcium (Ca), iron (Fe), manganese (Mn), and zinc (Zn) contents showed an increase. Difference in climate and soil conditions might have influenced these results. This study shows that Bontera can enhance nurtient uptake of bean.
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