An experiment was conducted in field during 1999 and 2000 seasons in the
experimental farm of Mallawy Agriculture Research Station, EI-Menia Government to
investigate the comparative effect of application of some organic fertilizers (filter mud
cake FMC and farm yard manure FYM) or inorganic fertilizer (Ammonium nitrate ·33.5% N Amm. nit.) at different levels, solely or with sulphur input on maize growth,
yield, some nutrients uptake and soil pH. Three levels of each fertilizer sources were
used, 1, 2 . and 3 ton/fed. from FMC, 10, 20 and 30 m³/fed. FYM and 60, 90 and 120
unit N/fed. Amm. nit. Elemental sulphur was added at levels of 0.0 (So) and 100
kg/fed. (Si) to the sub-sub-plots. The results revealed that a significant to highly significant increases in ears
we.ight kg/plot and 100 grains weight g. with using different fertilizer sources,
meanwhile plant height cm. remained unaffected. Significant to highly significant
increases in leaves content of N%, P%, K% and Fe ppm of corn plants fertilized by
FMC and FYM comparing with corn plants fertilized with Amm. nit., soil pH slightly
affected due to using different fertilizer sources. Regarding different fertilizers levels a significant to highly significant
increases in 100 grain weight g., a pronounced increase in maize plant leaves
content of N%, P%, K% and Fe ppm as a result of increasing fertility levels, highly
significant reduction in soil pH was noticed when comparing using different fertilizers
levels. When comparing sulphur application treatments and without sulphur
treatments, a highly significant variations were observed regarding plant height cm.
and 100 grains weight g., sulphur application resulted in a highly significant increase
in maize plant leaves contents of N%, P%, K% and Fe ppm, the use of sulphur as a
soil amendment would increase the availability of these elements and evoke a plant
response, sulphur application resulted in a highly significant reducing on soil pH
compared with no sulphur treatments.