Effect of Biofertilizers and Chemical Fertilizers on Phosphorus Uptake and Wheat Yield

                 Research on Crop Ecophysiology                                  Vol.15/1, Issue 1 (2020), Pages: 13 - 19           Effect of Biofertilizers and Chemical Fertilizers on Phosphorus Uptake and Wheat Yield   Mohammad Bagheri1 Mohammad Mirzaei Heydari*1 Department of Agronomy and Plant Breeding, Isfahan Branch, Islamic Azad University, Isfahan, Iran.                                                                                                                            *Corresponding author’s E-mail: [e-mail]   Received: 20 April 2019                                                                                Accepted:  20 Janu 2020   Abstract The use of phosphorus solubilising bacteria (PSB) as seed or soil inoculants can potentially enhance P uptake by plants and thereby enhance crop yields. A field study was conducted to investigate the effect of integrated use of PSB and chemical phosphate fertilizer on P uptake and grain yield of wheat (Triticum aestivum L., cv. Chamran). Fertilizer treatments comprised four levels of chemical fertilizer (0, 25, 50, and 75 kg P2O­5 ha-1 as ammonium phosphate) and three inoculation rates i.e. 0, 100 and 200 g per 50 kg seed, of Barvar 2 biofertilizer containing P solubilising bacteria (Pseudomonas putida and Pantoea agglomerans). An increase in grain yield and P uptake was found with the increasing rate of mineral phosphorus. Inoculation of bio-fertilizer (Barvar 2) along with lower rate of mineral phosphorus (25 kg P2O5 ha-1) produced maximum grain yield and accumulated maximum phosphorus in grain. There were significant treatment interactions, with evidence of antagonism between P fertilizer and PSB inoculation at their highest rates, particularly in case of grain yield, P uptake and harvest index. Key words: Biofertilizer, Grain yield, Phosphorus uptake, Wheat.

Effect of Biofertilizers and Chemical Fertilizers on Phosphorus Uptake and Wheat Yield Keywords:

Key words: Biofertilizer , Grain yield , Phosphorus uptake , Wheat