Heba, M.A. Khalil, Afifi, M.M.I., El-Akshar, Y.S. and El-Sayed, G.A.M.( 2013). Effect of bio- organic fertilizers on barley plants in a saline soilJournal of Applied Sciences Research, 9(8): 5337-5343, ISSN 1819-544X
Abstract: Field experiment was conducted on a farm at South El- Hossinia Res. Farm Station, El-Sharkia
Governorate, Agric. Res. Center (ARC), Egypt, during the winter season 2012. The effect of rice straw, humic acid as organic fertilizer and with the inoculation some bacterial strains as biofertilizer (Pseudomonas putida, Bacillus megatherium, Azospirillum brasilense (PGPR)) separately or together in the with or without rice straw on barley plants c.v. Giza 123 grown on a saline soil. Results revealed rice straw treatments enhanced significantly soil organic matter compared with the rest of the transactions under study. Also, all treatments transactions with add of humic acid with PGPR either rice straw or without led to a lower degree of pH and EC of the soil compared with other treatments achieved pH 7.28 to 7.08 and 7.11 to 7.08 while EC was 5.15 to 4.20 and 4.50 to 3.11 dS/m respectively, during period from 50 to 90 day. In addition, PGPR with humic acid (T4 and T8) increased nitrogen content of the soil compared with the rest of the transactions, as well as control. The treatment of spraying mixed of PGPR and humic acid in the presence of rice straw resulted in significant increase for barley crop and N., P. and K. content of the grain and straw comparison with control. Generally, it could be drawn that the use of the treatment of spraying mixed of bacterial strains (PGPR) and humic acid in the presence of rice straw was useful for the barley crop and its cause prevent the deleterious effects of soil salinity stress and enhancement of soil chemical and biological properties.
Keywords: (Barley, biofertilizer, organic fertilizer, Salinity Soil)
