soil microorganism
2.The correlation among soil microorganism quantity, enzyme activity and soil nutrient content is the significant, it can be used as evaluation index of soil fertility.
3.A polypeptide antibiotic, produced by the soil microorganism Bacillus brevis, that is a major constituent of tyrothricin.
4.Resulting from nursing with fertilizing seedling bed, the total number of soil microorganism and soil enzyme activities were increased, which in turn improved the efficiency of soil nutrients, thus produced the seedlings with vigorous roots, dwarf plants and more low node tillers.
5.This paper reports the effect of DCD in seedling stage to soil microorganism of bacteria,mold and actinomycetes,and the concentration changes of both ammonium nitrogen and nitrate nitrogen in soil.
6.The activity of soil microorganism is inhibited at low dose. At high dose, the crop yield is decreased by 10%, and on acid soil,by 50%. Alfalfa and tree are also yield decreased.
7.In 6 environmental factors, the soil temperature, water content, hydrolytic nitrogen, effective phosphorus and active organic matter, except pH, affected soil microorganism, mini-animals, microbial respiration rate and biochemical effects in different degree.
8.2.Significant differences of soil microorganism (bacterium, fungus and actinomycete) between with ES application and without ES application were determined in dependence on the rates of ES application and soybean species. The amount of soil microorganism in all treatments cropped high protein soybean followed the decrease order as bellow: 20mg/kg > 40 mg/kg > 0 mg/kg; and 40mg/kg > 20 mg/kg > 0 mg/kg for high oil soybean soil.
9.The quantity of bacteria group was most compared to other two groups in the alpine grassland system, it accounted for 75.82%-97.31% against total soil microorganism, while Actinomyces group and Fungi group were only 2.68-24.17% and less than 0.1%, respectively.
10.Study Progresses and Prospect on The Ecological Characteristics of Soil-inhabiting Microorganism in Soil Forming Process of Aeolian Sand Soil.
