In order to study the effects of Barley washed out wastewater with different levels of inorganic fertilizers on growth, Yield and Yield Components of Bread Wheat (Triticum aestivum L.), Pot experiment was conducted during February–July, 2014 under greenhouse condition at Kulumsa Agricultural Research Center. Factorial combination of five levels of irrigation water and four levels of NP fertilizers rate were used as treatments and laid out in CRD design with three replication. Analysis of variance illustrated that the use of barley washed out wastewater (blended water) for irrigation purpose resulted better growth, yield and yield component in comparison with natural water irrigation. The main effect of irrigation water was showed highly significant (p<0.01) effect on all measured growth, yield and yield components of bread wheat. Likewise; application of different levels of NP fertilizers rate bring about significant variation on most yield and yield attributer data, except PH, TKW and HI. The combined effect of irrigation water and NP fertilizers rate was significant on most growth, yield and yield components, except TKW and HI of bread wheat. The highest number of tiller per pot, spike length, number of seed per spike, biological and grain yield were obtained from 50% affluent + 50% natural irrigation water with application of 67% RNP fertilizer rate. Therefore, we conclude that application 50% affluent water + 50% natural irrigation water with 67% RNP fertilizer rate provide better yield and yield attributes.

Keywords: Bread wheat, Fertilizers, Irrigation, Greenhouse and Wastewater