تاثير عناصر پتاسيم، آهن، بور و روي در شرايط كم آبياري بر خصوصيات كمي ذرت دانه‏اي ژنوتيپKSC704 در منطقه‏ ورامين

The Effect of micro and macro elements (K,Zn,B,Fe) on Quality Characteristics in deficit irrigation condition in Zea mays (KSC704) in varamin region

In order to study the effect of micro and macro elements on deficit irrigation on quality characteristics in genotype of Zea mays (KSC704) a study was conducted in a Split plot design in randomized Complete blocks design with three replication , at a research farm on college of Agriculture, Varamin branch ,in 2007. In this study the main factor was irrigation levels(3methods).l-Normal irrigation 2-one row irrigation and one row no irrigation (Circulating). 3-one row irrigation and one row no irrigation (Fixed). Sub plots consisted of five fertilizer treatment . 1-Control (N,P) 2-Control+Potas .3-C+K+Zn. 4-C+K+Zn+B. 5-C+K+Zn+B+Fe. The results obtained indicated that there was a significant difference between irrigation and fertilizer treatment in number of ear per plant, number of seeds per row , 1000 seed weight and grain yield (P<1%). But number of plants per m2 wasnʹt significantly different. In this study fertilizer treatment has significant effect on number of seed row. But irrigation level hasnʹt significant effect on seed row Among irrigation treatment had been observed most yield and yield component in normal irrigation with 11156Kg/ha , but it hasnʹt significant difference with circulated irrigation. The highest of 1000 seed grains and number of seeds per row, were obtained from these irrigation levels. Fixed irrigation one row was achieved lowest among in characteristics. Besides, the fertilizer treatment results revealed that there was a significant difference between yield and yield component .The highest yield and biological yield was obtained from fertilizer form (Control plus K, Zn ,B and Fe) with average 11898.6 Kg/ha. That showed 25%yield increase. This fertilizer treatment has the highest 1000 seed grain number of seed per row and number of ear number of ear per plant with average 363.3 gr , 34.76, 18 and 11.36 no respectively .Results has shown the best among of yield from normal and circulated irrigation with the use of N ,P, K ,B ,Zn and Fe fertilizer with average 12950 and 12470 Kg/ha respectively .