Biological solution using strain Lipomyces starkeyi , which can produce viscous membranes to improve dry soil is considered to be sustainable for slope land improvement. The results of research on Lipomycin M ability to keep effective water in the soil of Me Linh District, Vinh Phuc Province show that in the soil samples cultivated traditional medicinal trees, the total amounts of effective water in the soil fertilized Lipomycin M (taken out under pressure pF ) are always higher than that in control soil plot (without Lipomycin M): the amounts of effective water in CT2 account for , CT3 -.