Researches on the Salt Tolerance and Restraint Effects of Radix astragali in Saline-Alkali Soils

In recent years, with rising bioengineering, the improving saline-alkali soils of biological measures have become the lasting, stable and effective measures in favour of water and soil conservation and ecological balance. More studies have shown that the biological measures are the most effective and basic measures to improve saline-alkali soils, especially in the inland. Radix astragali is classified to leguminous plant and is a kind of non-toxic and widely used Chinese herbal medicine which is used in cardiac, diuretic, anti- inflammatory, germicide and immunity improvement because of being slightly sweet and tepid. This paper mainly studied the salt tolerance and restraint effects of Radix astragali in saline-alkali soils. In the experiment, different cultivation conditions were applied to investigate the improving saline-alkali soils effect of Radix astragali, which should provide an effective and system scientific technological approach for biological salt control and developing medicinal industry in the saline-alkali soils.