PRODUCTIVITY OF GIZA 177 AND GIZA178 CULTIVARS UNDER ORGANIC AND INORGANIC FERTILIZATION

Two field experiments were carried out at the Farm of Rice Research and Training Center (RRTC),  Sakha, Kafr El-Sheikh, Egypt during 2013and 2014 seasons to study the effect of organic and inorganic fertilizer on growth, yield and its components of two rice cultivars. The experimental design was split-split plots with four replication , the two rice cultivars namely Giza177 and Giza178 allocated in the main plots , while fertilizer treatments i.e. N-levels  (0,120 and 165 kg N/ha )were applied in the sub plots and FYM ,P ,K and their combination devoted in the sub-sub plots .
The main results revealed that Giza178cultivar  surpassed  Giza 177 cultivar in number of tillers hill^-1 ,leaf area index , dry matter accumulation content (g hill^-1)  ,number of panicles hill^-1 panicle length(cm) ,panicle weight(g) ,number of grains panicle^-1, grain and straw yield (t ha^-1) , while Giza177 produced highest 1000-grain weight .
Plants treated with 165 kg N/ha gave the heights value of all growth character and yield component.
Farmyard manure plus phosphorus plus potassium increased the previously mentioned characters. Also, application of FYM+P+K combined with either 120 or 165 kg N/ha produced higher yield than application only P+K combined with 120 or 165 kg N/ha . It means that adding FYM with 120 or 165 kg N/ha caused on increased in yield.