Investigation of the effect of natural bacterial isolates obtained from soil samples around Tokat on the development of pumpkin plants

Biological fertilizers are fertilizers containing live microorganisms that increase microbial activity in the soil. Unlike chemical fertilizers, it is important for farmers due to its low cost as well as being environmentally friendly. The aim of this study is to investigate the growth of zucchini plants and microbial preparations isolated from different media. Isolation processes were carried out with soil samples taken from the rhizosphere regions of the plants where wild plant growth was intense. Purification was done by sowing on specific media and microbial preparations were prepared. A total of 5 bulk groups were formed. In the planting of zucchini, these bulk groups were applied to the plant roots of the zucchini plant with 5 replications. Height, body diameter, leaf length, leaf width and number of grains were determined as the development parameters of the zucchini plants. According to the findings; It was found that MG-1 bulk group caused an increase in all development parameters compared to control.