The Efficiency of Growth Factor Bacteria ,Humic Acid ,and Alga Extract in Drought Stress of Sugar Beet

Abstract

To study the impact of growth factor bacteria , humic acid and alga extract in drought stress condition a test is established in form of completely random blocks and spilt plot in 4 replications in a field in Mahallat in Arak province in 1389. Two primary plots including irrigation and stress and secondary plots including growth factor bacteria ,humic acid and alga extract, Ascophylum 93. There were significant difference between irrigation , growth factor bacteria , humic acid and alga extract. The growth factor bacteria increased plant vigour against drought stress.<br />