Assessing Dry Matter Accumulation in Different Parts of Maize Hybrid in Different Amounts of Nitrogen and Amino- acid

A factorial experiment was randomly performed in Karaj seed and seedling research institute in 2008 and 2009 to study the effect of different nitrogen and amino acid amounts on dry weight of two maize seronital cultivars KSC700 and KSC704 and a rapidly – growing KSC 500. pure nitrogen at 3 levels of 0,115, and 230 kg and amino acid sprinkling at 3 levels of 0,4 and 5 lit in hectare were contemplated in the stages of fertilization (inoculation). dough and physical maturation, the shrubs were harvested and dry weight of leaf, stem, corn, and total shrubbery in hectare was noted. Dry matter increased in plants by using amino acid. more use of nitrogen has increased it, too. so by 230 kg nitrogen in hectare, the dry matter of leaf, stem, corn and total shrubbery was more than use of 115 kg. mean comparing of jointly use of nitrogen and amino acid in different amounts showed that it had the most yield in view of dry matter production in leaf, stem, corn and total shrubbery in all three stages. different reactions were observed in studied hybrid to fertilizer for increasing dry weight, so fertilizer using on dry weight increment of KSC700 and KSC704 hybrid was more effective than KSC500.