Integrated Effect of Fertilizers on Soil pH, EC and Organic Matter Content

Two field experiments in split-plot design were carried out the winter season of 2014-2015 at Mansoura University Farm, Egypt, to investigate effect biochar, compost, and chicken manure with different rates mineral fertilization on soil pH, EC, organic matter content. Treatments manure, while studied fertilizer treatments (NPK) took 50,75,100, 125 %. The obtained results can be summarized in; addition led an increase pH wheat (Sakha 68) by 8.73 %, decreased 8.30 8.19% compared 0.0 addition, where same amendment order increased barley (Gemmiza 123) 8.65, reduce 8.18% compost manure. Biochar, values EC 2 , 2.43, 2.10 dS m-1 2.80, 2.23, 2.14 barley, respectively. Organic improved highest result was found 2.798 2.767 % soil. Mineral both as well up level used. A significant type - dose interaction most tested treatments. paste interactions between biochar other best mean value recoded 100 NPK treatment (2.76 m-1) soil, a similar trend also achieved (3.29 m-1). Chicken -125 recommended gave heights content, Respectively.