A pot experiment was conducted during the rice seasons 2003 in the
greenhouse of the Rice Research and Training Center Kafr EI-Sheikh to study the
effect of the application of rice straw combined with farm yard manure (FYM) as an
activator as a complementary fertilizer with urea on soil organic matter and
performance of Sakha 101 rice variety. The main results of this study revealed that the application of rice straw plus
nitrogen with or without farm yard manure (FYM) 3 weeks before transplanting caused a significant increase in grain and straw yields, yield attributes as well as organic matter content in the soil. Results indicated also the application of nitrogen alone caused a significant reduction in soil organic matter.