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Research Journal of Biological Sciences
Year: 2012  |  Volume: 7  |  Issue: 6  |  Page No.: 255 - 259

Effect of Azolla Compost and Nitrogen on Yield and Components Yield Rice (Oryza sativa) in North of Iran

Z. Changiz-Dalivand, M. Ashouri and T. Razavipur    

Abstract: In order to assess the effect of Azolla compost and Nitrogen on yield and yield component of Oryza sativa, an experiment in factorial format based on randomized complete block design with 3 replications in Iran’s Rice Research Institute (Rasht township) in 2011 was conducted. Experiment factors include chemical fertilizer on 3 levels (control, 40 and 80 kg ha-1 nitrogen) and organic fertilizer on 4 levels (control, 2.5, 5 and 7.5 ton ha-1 Azolla compost) based on dry weight. Results indicated that using of Nitrogen fertilizer and Azolla compost rate had a significant effect on the grain yield, thousand grains weight, plant height, number of panicle and number of tiller. Also in this experiment determined that interaction effects of Nitrogen fertilizer and Azolla compost is significant only on the number tiller.

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