Effects of liquid humic acid fertilizer on the physiological characteristics proportion in single cross maize cultivar

Humic substances comprise a major part of organic matter, and their influence on soil properties is well known and could be used to improve microbial activity. Maize is one of the most highly consumed crops, and the most important foodstuff after wheat and rice around the world. In order to study the response of maize genotype against the application of peat and leonardite based liquid humic fertilizers, an experiment was conducted at experimental field of Islamic Azad University, Ardabil Branch in 2009-2010 cropping year. The Experiment was conducted of randomized complete block design (RB) with three replications. Treatment used on the Single cross 704 genotype was at three Conditions (peat based humic fertilizer; leonardite based humic fertilizer; without the application of humic fertilizer).Results showed that there was significant difference between the experimental conditions (test solution) in terms the all traits at 1% level.The results of the comparison data on the experimental conditions (test solutions) showed the liquid Humic fertilizer based on Leonardite, in terms of traits such as ratio of peduncle length to plant height, the ratio of pre-terminal internodes length to plant height and the ratio of other internodes length to plant height respectively with average of 0.09, 0.05 and 0.34 were the lowest but was the best condition.