Bangladesh is divided into 30 Agro Ecological Zone (AEZ). Among them AEZ-9 (Old Brahamaputra Foodplain) has a great importance for wheat production and wheat research. The soil of this region is Sonatola series, silty loam with slightly acidic, developed under aquic moisture regime and variable temperature conditions. The largest Agricultural University is situated of this region. So, most of the wheat research has been conducted by many researcher. Due to rapid increase of population, our farmers want to produce more grain crops like wheat. So fertilizer application, maintaining sowing dates...