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Abstract
. A field experiment was carried out during winter seasons of 2002/ 2003 and
200312004 at The Experimental Research Station of The Agriculture Research Center,
El-Arish, North Sinai. The main object of this research was to study the effect of
different types of fertilizers; i.e., organic manure sources(Chicken Manure”ChM”,
Pressed Olive Cake”POC”, and a mixture of Chicken Manure and Pressed Olive Cake)
and two biofertilizers (phosphate Dissolving Bacteria ”PDB” and Nitrogen Fixing
Bacteria ”NFB”) on growth and yield of tomato plants (local hybrid ”Assail”). Plants
were grown in the end of the winter season under low plastic tunnels and sandy soil
condition using drip-irrigation system. The obtained results could be summarized as
follows: (1) application ofChM alone, ChM + NFB or ChM + POC + NFB enhanced
most tomato plant growth characteristics at 60 and 90 days after transplanting in both
seasons (2). Application of phosphate dissolving bacteria (PDB) increased significantly
alI plant growth traits in both seasons. (3). NFB increased significantly all growth
studied traits of tomato plant after 60 and 90 days from transplanting, as compared to
non inoculated ones in both seasons. (4). Application of ChM with PDB increased all
plant growth parameters, viz; fresh and dry weight of root, leaves, stem and total fresh
weight as well as leaf area per plant at 60 and 90 days from transplanting. (5).The
highest chlorophyll content was recorded with POC, and ChM + POC both with or
without PDB and NFB. (6). Application of ChM + POC with PDB was the best
treatment for early yield and its components. (7) The favorable treatment for producing
the highest total mid yield/fed was ChM + the two biofertilizers; i.e., PDB + NFB. (8).
Application of ChM + POC with NFB was the best interaction treatment which
increased total late yield and its components in the two growing seasons, except
number of fruits of grade A per plant and per fed. in the first season. (9). Application of
ChM + POC with inoculation of NFB was the favorable treatment for increasing total
yield and its components expressed as number and weight of fruits per plant and fruits
weight per fed. in both grade A and B followed by the treatment received ChM + NFB
only. (l0). ChM with NFB had the highest record of total acidity (0.99% in the first
season) followed by POC + NFB (0.86%) in the second season. The highest values of
V.C were with ChM + NFB, POC + NFB and ChM + POC + NFB in both seasons. The
highest values of TSS were recorded by application of ChM + NFB in both seasons
(9.7%; 9.3% in the first and second seasons, respectively).