A summary of soil microbial biomass nitrogen Effects of combined application of inorganic fertilizer with straw and pig slurry and their compost on wheat growth and nitrogen uptake 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 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. Nitrogen transformation and its residue in pot experiments amended with organic and inorganic 15N cross labeled fertilizers 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 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 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 Influence of residue composition and addition frequencies on carbon mineralization and microbial biomass in the soils of agroforestry systems Effects of different C/N combinations of fertilizers on biological fixation and release of nitrogen fertilizer and wheat growt Contents of soil microbial biomass nitrogen and its mineralized characteristics and relationships with nitrogen supplying ability of soils Effects of excessive nitrogen fertilization on soil organic carbon and nitrogen and nitrogen supply capacity in dryland Response of Soil Microbial Characteristics and Soil Enzyme Activity to Irrigation Method in No-till Winter Wheat Field Distribution characteristics of soil nitrogen during the greening period of forageunder different alpine grasslands in the eastern Qilian Mountain Response of Soil Enzyme Activity and Microbial Biomass Carbon and Nitrogen to the Nutrient Addition of Stipa Baicalensis Steppe in Inner Mongolia Responses of soil microbial biomass, community structure and soil enzyme to below-ground carbon changein the warm-temperate forest ecosystem 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 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 STUDY ON THE METHODS FOR MEASURING MICROBIAL BIOMASS NITROGEN IN SOILS Effects of organic materials on maintaining soil microbial biomass nitrogen Evaluation of soil easily mineralizable nitrogen and microbial biomass nitrogen for biological available index Effects of wheat cultivation and fertilization on soil microbial biomass carbon,soil microbial biomass nitrogen and soil basal respiration in 26 years Soil Microbial Characteristic and Soil Respiration in Grassland under Different Use Patterns Characteristics of Soil Organic Carbon and Microbial Biomass Carbon and Nitrogen in Eucalyptus grandis Plantations with Different Densities Variation of soil microbial biomass carbon,soil microbial biomass nitrogen and nitrogen mineralization potential in different soil types on the Loess Plateau 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 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 Effects of long-term fertilization on microbial biomass carbon and nitrogen and on carbon source utilization of microbes in a red soil. Effects of different application rates of calcium cyanamide on soil microbial biomass and enzyme activity in cucumber continuous cropping. Effects of different land use patterns on microbial biomass carbon and nitrogen in Guangdong Province Comparison of soil nitrogen status among three stand types in the semi-arid areas of upper reaches of the Minjiang River