Fathi, A. I. ; S. M. Abdel- Aziz ; A.H. Abdel Rahman
and Hoda S. Saed
( 2012). Interactive Effect Of Inorganic, Organic And Bio-Fertilizers On The Growth, Yield And Quality Of Sesame PlantsEgypt. J. of Appl. Sci., 27 (3) 233-250
Abstract: A field experiment was conducted on a sandy soil at Elismailia Agric. Res. Station, Egypt during the summer season of 2010 to study the sole effect of each of compost, chemical fertilizers and bio-fertilizers as well as their combined effects on the productivity and quality of sesame (Cv. Giza 32). In a split- split plot design with three replicates, two levels of compost manure (zero and 10 ton/fed.) were tested as main plots; four levels of nitrogen and phosphorus mineral fertilizers i.e., (control), 50 %, 75 % and 100 % from the recommended dose (RDF) were used as sub-main plots and bio-fertilizers [un-inoculation and dual inoculation of nitrogen fixing bacteria (NFB) and phosphate solublelizing bacteria (PSB)] were placed in sub-sub- plots. Generally, results revealed that the sole application of the compost (10 ton/fed.), mineral fertilizers (100 % RDF) and bio-fertilizers cause of increases in seed yield over the control. Likewise, the interaction between the used levels of chemical fertilizers and compost or bio-fertilizers induced a significant increase in the investigated growth parameters of sesame plants over their individual effect. In this respect, it is worthy to note that the treatment of 100 % RDF alone gave values almost similar to those achieved due to the treatment of 75 % RDF plus 10 ton compost / fed or the treatment of bio-fertilizers and 10 ton compost / fed., whereas, the addition of compost at a rate of 10 ton / fed combined with 75 % RDF and bio-fertilizers gave values of plant growth parameters, yield and its components higher than the corresponding ones achieved owing to the treatment received full dose of mineral N and P alone. As for seed quality of sesame, it was also found that protein an d oil contents were increased by both bio, organic and inorganic fertilizers applications. In general, application of compost manure at a rate of 10 ton / fed plus inoculation of seeds of sesame plants with bio-fertilizers containing NFB and PSB improved sesame yield and saved considerable amount of mineral fertilizer requirements (25 % of the RDF) which may help in decreasing the pollution of environment. The results showed the importance of applying bio-organic fertilizers against chemical fertilizers to protect the environment from harmful chemical pollution.
Keywords: (Inorganic, organic, bio- fertilizers, Nitrogen, Phosphorus, Sesame plants, Inoculation, Seed yield of sesame. )
