No abstract

The current study was carried out as a pot experiment at the Experimental Farm, Faculty of Agriculture, Menoufia University during winter growth season of 2015-2016 to study the individual and combined effect of inorganic and organic fertilizations and Si application on barley plant irrigated by saline water under sandy soil conditions as well as sandy soil chemical properties and its content of available macro-and micronutrients and silicon. The used pots were divided into two main groups. The soil in the first main group no received farmyard manure (FYM) but the second one treated by FYM at rate of 3%. Both N and P fertilizers were add at its recommended doses. i.e 134 kg / fed and (200 kg/fed) at ammonium nitrate (33 % N) and super phosphate (15.5 % P2O5) respectively. The treatments of FYM and P were carried out and good mixed with sandy soil before planting. Foliar application of silicon was carried as potassium silicate 400 liter / fed "25% SiO2 + 10% K2O" where foliar solution of micronutrients applications Foliar application of Fe , Zn and Mn mixture was carried at 400 liter / fed " 12 % , 12% and 13 % " respectively in EDTA form. The obtained data showed that, there are a significant increase in the dry matter yield (g /pot) of barley plants (shoots and roots) as a result of the studied treatments. Also , there are an increase in plant content of N , P, K, Fe , Mn , Zn and Si. The obtained data show also EC values in the soil treated by organic application were higher than that recorded with the initial soil before planting. On the other hand soil EC was decreased as a result of inorganic application alone. Also the pH and CaCO3 values and there were an increase in soil content of OM ,