Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Aysen AKAY
Today, the intensive use of chemical fertilizers causes various environmental problems. Inoculation of microbial preparations as an alternative to chemical fertilizers to plants can be an effective method for sustainable production efforts. Silicon application shows potential to increase nutrient uptake by roots and nutrient availability in the rhizosphere through complex mechanisms, can increase P availability in the soil. In this study, the effects of silicon application and inoculation of phosphorus solubilizing bacteria and mycorrhiza on sunflower plant growth and phosphorus utilization efficiency were investigated. Oil sunflower seed, Glomus etunicatum, mycorrhiza complex and with phosphorus bacteria were inoculated. Si application was also made at doses of 0-30-60 kg/da. After the sowing of the experimental plants, mycorrhiza and P bacteria were inoculated. The experiment was terminated when 50% of the flowers bloomed. According to the results, average plant height, flower wet and dry weights showed significant differences with Si treatments, Si with mycorrhiza and P bacteria treatments. 30 Si kg/ha dose had more positive effects on plant growth.
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