Effect of Phosphorous and Biochar Levels on Phosphorous Concentration in Plants and some Growth Characteristics and Yield of Wheat (Triticum aestivum L.)

A field experiment was carried out during the 2021-2022 agricultural season in Al Bandar area, which is located 10 km east of the center of Samawah city - Muthanna governorate on the left side of the Euphrates River to find out the effect of phosphorous and biochar levels on the growth characteristics and yield of bread wheat, triple superphosphate fertilizer TSP (21%) was used. as a source of phosphorous fertilizer with five levels (0, 50, 75, 100 and 150%) of the fertilizer recommendation (120 kg P ha −1 ) and biochar was used, as a volume of 120 cm 3 was added to a box with three size levels (0%, 1% and 2%) It was added at once before planting, the experiment was carried out using a design (RCBD) with three replicates, The levels of phosphorous and biochar achieved the best values in all study parameters.