Effects of freeze-thaw cycles on soil nitrogen loss and availability Effects of biochar and biochar-based ammonium nitrate fertilizers on soil microbial biomass carbon and nitrogen and enzyme activities 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 Changes of nitrogen fractions in horse dung during its decomposition on the typical steppe of Inner Mongolia, North China. Effects of  chlorimuronethyl and urea on soil microbial biomass carbon and nitrogen and soil inorganic nitrogen. Short-term influences of winter crops on microbial biomass carbon, microbial biomass nitrogen and Cmic-to-Corg in a paddy soil Effect of sugarcane//soybean intercropping and reduced nitrogen rates on sugarcane yield, plant and soil nitrogen Responses of soil enzyme activities and microbial biomass N to simulated N deposition in Gurbantunggut Desert Influence of residue composition and addition frequencies on carbon mineralization and microbial biomass in the soils of agroforestry systems Effects of forest floor litter and nitrogen addition on soil microbial biomass C and N and microbial activity in a mixed Pinus tabulaeformis and Quercus liaotungensis forest stand in Shanxi Province of China. Effect of controlled release nitrogen fertilizer on soil microbial biomass carbon and nitrogen contents Changes of microbe and organic matter content in paddy soil applied with straw, manure and nitrogen fertilizer Effects of subsoil bulk density on rhizospheric soil microbial population, microbial biomass carbon and nitrogen of corn (Zea mays L.) field Soil Microbe Quantities,Microbial Carbon and Nitrogen and Fractal Characteristics under Different Vegetation Restoration Patterns in Watershed,Northwest Hunan Influence of arbuscular mycorrhizal inoculation on maize straw degradation and soil microbial biomass carbon and nitrogen, and enzyme activity in di-chamber split-root device Changes in soil nitrogen and microbial activity during Robinia pseudoacacia recovery period in the Loess Hilly-Gully region Response of Soil Microbial Characteristics and Soil Enzyme Activity to Irrigation Method in No-till Winter Wheat Field Comparison of soil nitrogen status among three stand types in the semi-arid areas of upper reaches of the Minjiang River Carbon and nitrogen mineralization of incubated sweet maize Dynamic characteristics of soil nutrients and soil microbial biomass of field-returned straws at different decay accretion conditions Effects of organic materials on maintaining soil microbial biomass nitrogen Evaluation of soil easily mineralizable nitrogen and microbial biomass nitrogen for biological available index Soil Microbial Characteristic and Soil Respiration in Grassland under Different Use Patterns Effects of long-term fertilization on microbial biomass carbon and nitrogen and on carbon source utilization of microbes in a red soil. Effects of chicken manure mixed with inorganic fertilizer on soil enzyme activities, microbial biomass C and N at rhizosphere of poplar seedlings Effect of different crop rotation systems and continuous fallow on soil microbial biomass carbon and nitrogen under different fertilizer treatments Dynamics of soil microbial biomass C, N along restoration chronosequences in pine plantations Effects of urease/nitrification inhibitors on soil available N and microbial biomass N and on N uptake of wheat Dynamics of microbial biomass N in different fertilized black soil and its related factors Effects of wheat cultivation and fertilization on soil microbial biomass carbon,soil microbial biomass nitrogen and soil basal respiration in 26 years Nitrogen transformation and its residue in pot experiments amended with organic and inorganic 15N cross labeled fertilizers Effect of straw returning on soil nitrogen transformation STUDY ON THE METHODS FOR MEASURING MICROBIAL BIOMASS NITROGEN IN SOILS INFLUENCE OF TRIBENURON-METHYL AND 2,4-D ON SOIL MICROBIAL BIOMASS C(CARBON), N(NITROGEN) OF POTTED WHEAT 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 Effects of organic manures with different carbon-to-nitrogen ratios on soil microbial biomass of organic agriculture Effects of different land use patterns on microbial biomass carbon and nitrogen in Guangdong Province Influence of non\|tillage and stubble on soil microbial biomass and enzyme activities in rain\|fed field of Inner Mongolia Seasonal dynamics of soil microbial biomass C and N in two larch plantation forests with different ages in Northeastern China A summary of soil microbial biomass nitrogen Effect of different cultivation systems on the soil microbial carbon and nitrogen amount and the yield of cucumber in greenhouse Labile carbon and nitrogen dynamic change in soils incorporated with different parts of maize plants Effects of long-term fertilization on carbon and nitrogen and enzyme activities of soil microbial biomass under winter wheat and summer maize rotation system Effects of consecutive turnover of green manures on soil microbial biomass and enzyme activity Distribution characteristics of soil nitrogen during the greening period of forageunder different alpine grasslands in the eastern Qilian Mountain Effects of different application rates of calcium cyanamide on soil microbial biomass and enzyme activity in cucumber continuous cropping. Seasonal dynamics of soil microbial biomass C and N in different habitats in Zhalong Wetland Microbial mechanism on enhancement of inorganic fertilizer-N use efficiency for combined use of inorganic and organic fertilizers Effects of combined application of inorganic fertilizer with straw and pig slurry and their compost on wheat growth and nitrogen uptake Characteristics of Soil Organic Carbon and Microbial Biomass Carbon and Nitrogen in Eucalyptus grandis Plantations with Different Densities Effects of nitrogen application rate on soil inorganic nitrogen distribution,microbial biomass nitrogen content and yield of wheat Effects of crop root and fertilizer on soil microbial biomass nitrogen in semiarid farmland ecological system Seasonal change of soil microbial biomass and the relationship between soil microbial biomass and soil moisture and temperature Response of Soil Enzyme Activity and Microbial Biomass Carbon and Nitrogen to the Nutrient Addition of Stipa Baicalensis Steppe in Inner Mongolia Effects of different C/N combinations of fertilizers on biological fixation and release of nitrogen fertilizer and wheat growt Nitrogen cycle and content in plowable soil layer under different land-use types in Dongting Lake region Contents of soil microbial biomass nitrogen and its mineralized characteristics and relationships with nitrogen supplying ability of soils Responses of soil microbial biomass, community structure and soil enzyme to below-ground carbon changein the warm-temperate forest ecosystem