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Nitrogen transformation and its residue in pot experiments amended with organic and inorganic 15N cross labeled fertilizers Distribution characteristics of soil total nitrogen and soil microbial biomass nitrogen for the typical types of soils on the Loess Plateau DETERMINATION OF SOIL MICROBIAL BIOMASS NITROGEN BY CONTINUOUS FLOW ANALYTICAL SYSTEM Characteristics of Soil Organic Carbon and Microbial Biomass Carbon and Nitrogen in Eucalyptus grandis Plantations with Different Densities Effects of biochar and biochar-based ammonium nitrate fertilizers on soil microbial biomass carbon and nitrogen and enzyme activities Effects of chicken manure mixed with inorganic fertilizer on soil enzyme activities, microbial biomass C and N at rhizosphere of poplar seedlings Effects of different application rates of calcium cyanamide on soil microbial biomass and enzyme activity in cucumber continuous cropping. Dynamics of soil microbial biomass C, N along restoration chronosequences in pine plantations Effect of straw returning on soil nitrogen transformation STUDY ON THE METHODS FOR MEASURING MICROBIAL BIOMASS NITROGEN IN SOILS Seasonal dynamics of soil microbial biomass C and N in different habitats in Zhalong Wetland Effects of nitrogen application rate on soil inorganic nitrogen distribution,microbial biomass nitrogen content and yield of wheat Seasonal change of soil microbial biomass and the relationship between soil microbial biomass and soil moisture and temperature Effects of long-term fertilization on microbial biomass carbon and nitrogen and on carbon source utilization of microbes in a red soil. Comparison of soil nitrogen status among three stand types in the semi-arid areas of upper reaches of the Minjiang River Short-term influences of winter crops on microbial biomass carbon, microbial biomass nitrogen and Cmic-to-Corg in a paddy soil Influence of residue composition and addition frequencies on carbon mineralization and microbial biomass in the soils of agroforestry systems Effects of wheat cultivation and fertilization on soil microbial biomass carbon,soil microbial biomass nitrogen and soil basal respiration in 26 years Contents of soil microbial biomass nitrogen and its mineralized characteristics and relationships with nitrogen supplying ability of soils Effect of different cultivation systems on the soil microbial carbon and nitrogen amount and the yield of cucumber in greenhouse Effects of consecutive turnover of green manures on soil microbial biomass and enzyme activity INFLUENCE OF TRIBENURON-METHYL AND 2,4-D ON SOIL MICROBIAL BIOMASS C(CARBON), N(NITROGEN) OF POTTED WHEAT Effects of organic materials on maintaining soil microbial biomass nitrogen Response of Soil Enzyme Activity and Microbial Biomass Carbon and Nitrogen to the Nutrient Addition of Stipa Baicalensis Steppe in Inner Mongolia Changes in soil nitrogen and microbial activity during Robinia pseudoacacia recovery period in the Loess Hilly-Gully region Effects of excessive nitrogen fertilization on soil organic carbon and nitrogen and nitrogen supply capacity in dryland Variation of soil microbial biomass carbon,soil microbial biomass nitrogen and nitrogen mineralization potential in different soil types on the Loess Plateau Soil Microbe Quantities，Microbial Carbon and Nitrogen and Fractal Characteristics under Different Vegetation Restoration Patterns in Watershed，Northwest Hunan Seasonal dynamics of soil microbial biomass C and N in two larch plantation forests with different ages in Northeastern China Effects of subsoil bulk density on rhizospheric soil microbial population, microbial biomass carbon and nitrogen of corn (Zea mays L.) field