Effect of number of seedlings / hill and nitrogenous fertilizer levels on SK20334 hybrid rice variety productivity [electronic resource].

Includes reference.

field experiments were carried out at Etai El - Baroud Agricultural Research Station Farm (Behaira Governorate, Egypt), Agricultural Research Center (ARC), during 2004 and 2005 summer seasons to study the effect of number of rice seedlings I hill and different nitrogen levels on the productivity of SK 2034 hybrid rice variety. Thirty day old seedlings were transplanted on June, io" with the rates of 1,2,3 and 4 seedlings I bill under nitrogen levels; i.e., 0,55,110,165 and 220 Kg N/ ha as urea form 46% N. A split plot design, with four replications, was used, where, the number of seedlings! hill was laid in the main plots and the nitrogen levels were allocated in the sub- plots. All cultural practices were done as recommended. The main findings show that, two seedlings! hill, under 165 Kg N/ha significantly increased the number of panicles! hill, panicle weight, number of filled grains I panicle, straw and grain yields and 1000- grain weight. Three seedlings! hill, under 165 Kg N/ ha, significantly increased leaf area index, number of days to heading and plant height. Whereas, 220 Kg N/ ha significantly increased sterility and head rice %. The interaction was significant between number of seedlings I hill and nitrogen levels for the number of panicles! hill and grain yield in both seasons.It was concluded that transplanting SK2034 hybrid rice with two seedling / hill at 165 Kg N / ha might produce the highest grain yield under the condition of study.

Summary in Arabic.

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