Abstract
A field experiment was conducted at the Agricultural Experiment Unit, College of Agriculture Engineering Sciences, University of Baghdad, during two winter seasons 2016-2017 and 2017-2018 to study the response of some growth traits for wheat Cv. Al forat to foliar spraying using with humic glutamic acid and acid. A factorial experiment was with in Randomized Complete Block Design applied three replications, it involved two factor ,first factor was glutamic acid with three concentrations (0,250,500) mg L-1, second factor was humic acid with three concentrations (0,1,2) ml L-1, have been sprayed at tillering and flowering stages. The results showed that all the studed growth traits (plant height, ,number of tillers, flag leaf area dry weight for plant , crop growth rate ,relative growth rate and biological yield) were affected by spraying with humic acid and glutamic acid for two season concentration , 2ml -1 from humic acid was superior on most of studies traits , as for glutamic acid ,plants treated with concentrations 250 and 500 mg L-1 were produced the highest mean for studies traits but without significant difference between them in some traits .The interaction between two factors was significant on most studies growth traits .
Highlights
Wheat is one of the most important and main crops in Iraq and the world,a source of energy it content of carbohydrates, proteins and vitamins, its productivity in Iraq still low despite the success factors for its planting, due to many reasons, including the excessive use of fertilizers and in ways that are not studied and which affect on the soil and human health
The results showed that all the studed growth traits were affected by spraying with humic acid and glutamic acid for two season concentration, 2ml -1 from humic acid was superior on most of studies traits, as for glutamic acid,plants treated with concentrations 250 and 500 mg L-1 were produced the highest mean for studies traits but without significant difference between them in some traits .The interaction between two factors was significant on most studies growth traits
There are some practices that could be reduce the use of fertilizers which are expensive to a certain level and at the same time its provide plant with essential elements,such as nitrogen, one of these practices is the use of safe and environmentally friendly materials,including the use of amino and organic acids,especially glutamic and humic acid .Humic acid substances are natural technological prouducts with exciting biological effects on crops (10)
Summary
Wheat is one of the most important and main crops in Iraq and the world ,a source of energy it content of carbohydrates , proteins and vitamins , its productivity in Iraq still low despite the success factors for its planting, due to many reasons, including the excessive use of fertilizers and in ways that are not studied and which affect on the soil and human health.
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