Effects of different levels of nitrogen fertilizer and seaweed Sargassum on yieldandyield components of maize single cross 704

In this study to assess the Effects of different levels of nitrogen fertilizer and seaweed Sargassum on yield and yield components of maize single cross 704. The experimental conducted in form of split plot in based of randomized complete block design with three replications in Islamic Azad University Agricultural Research Station in 1389. Main plots consisted of four levels of nitrogen fertilizer, respectively: zero, 100, 200 and 300 kg N ha urea and 4 levels of algae, respectively: zero, 250, 500 and 750 kg ha subplots in the form was considered. The results of the analysis of variance showed that application of nitrogen fertilizer and algae levels on corn in most traits measured in the level of one percent (p˂0.01). was significant. Plant algae bio-fertilizer on traits such as grain yield, biological yield, plant height and significant impact on the level of harvest index was one percent indicated and on the total number of seeds per ear and ear-level 5% (p˂0.05) impact of abortion meaning and impact on grain weight was. The highest seed yield/ha with 9.7 tons of fertilizer application to 750 kg of algae in the ha. Comparison of average interaction of algae and manure nitrogen fertilizer application indicated 750 kg/ ha nitrogen fertilizer application in algae and 300 kg/ha seed yield with the highest rate of 6.10 tons per hectare and harvest index 9.43 percent, the highest rate is indicated.