Two innovations of Xinjiang Institute of Ecology and Geography obtained the authorizations of national innovation patents

　　Recently, the “New Way of Sand Fixation with Terricolous Nitrogen-fixing Blue Green Algae” (Patent No. 200510091252.0) and the “Microbial Inoculum for Corn-plant Ensilage Fermentation” (Patent No. 200510126593.7) of Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, obtained the authorizations of national innovation patents.

　　The “New Way of Sand Fixation with Terricolous Nitrogen-fixing Blue Green Algae” is accomplished through the steps of incubation of blue green algae, inoculation environment, inoculation time and inoculation concentration, and it is to rapidly fix mobile sand in the fixed and semi-fixed deserts and to regenerate the ecology in the project-disturbed areas in the fixed and semi-fixed sandy areas with terricolous nitrogen-fixing blue green algae. Blue green algae grows to form the microbiotic crust under photosynthesis and limited rainfall in desert, thus, the soil organic matter content is increased, the soil structure is improved, and the purpose of fixing sand is achieved. The microbiotic crust composed of microbiota dominated by terricolous nitrogen-fixing blue green algae and accompanied by the filiform chlorophytes, bacteria, epiphytes, lichens and mosses survives and grows under the arid and lean desert environment, and it plays an irreplaceable role in fixing sand, fertilizing soil and improving environment. In the “Microbial Inoculum for Corn Ensilage Fermentation”, the green corn plants are comminuted, sprayed and inoculated with microbial inoculum. The effective alive bacterium number of the known three inoculated lactobacillus strains in the fermented corn-plant ensilage of 1000 g varied in a range of 1.0×108~1.0×109. A lot of experiments have proved that the growth of harmful microorganisms at the initial fermentation stage is restricted and the nutrient loss in the corn-plant ensilage is decreased with the increase of the number of lactobacillus, expedition of producing lactobacillus and decrease of pH value.