Two field experiments were canied out in EI-Serw Agricultural Research
Station (A.R.C.). Dammieta Govemorate. during the two successive seasons of 2004
and 2005 to study the effect of thme inigation intervals i.e. irrigation every 6.9 and 12
days as well as six fertilizer treatments namely (without fertilizer zero led.
recommended rates 69 kg Nl‘fed. 69 kg led from farm "yard manure. 69 kg led
poultry manure. 69 kg fed from farm yard manure + foliar application (Leafdnp NPK
19% ). and 69 kg led from poultry manure + foliar application (Leafdrip NPK 19%)
on growth,yield and yield components and technological characteristics of two rice
cultivars namely .Sakha 104 and Giza 182A Strip Split Plot Design with four
replicates were used . The main results could be summarized as follows : Irrigation
interval longer than 6 days caused great reduction in plant height. .number of
panicleslmZ. panicle length. panicle grain weight.1000-grain weight. number of
grains/panicle. grain yield. straw yield (tom‘fed).hulling percentage. milling percentage
as well as protein percentage in both seasons. Rice cultivars significantly differed in
all previously mentioned traits. Sakha 104 surpassed cultivar (riza 162 in all the
studied traitsin both seasons. Fertilization treatments had a significant differences in
all studied traits in both seasons.Poultry manure + foliar application (LeafdripNPK 19
ii). exceeded all fertilizer treatments in all studied . Results exhibited that the
interaction effect between irrigation intervals and rice cultivars was significant on all
studied traits in both seasons .Rice cuitivar Sakha 104 gave the highest estimated
characters at all irrigation intervals in both seasons. .These results indicated that
Sakha 104 was the most tolerant one to prolonging irrigation intervals in all studied
treats and gave the highest grain yield per feddans in both seasons. compared to
Giza 182 in both seasons.Generaly.fertilized Sakha 104 cultivar with 69 kg NriedJrom
poultry manure + foliar application with Leafdrip NPK19%)gave the highest grain
yieldlfeddans in newly reclaimed soils.