Systemic study on nutrients in irrigation desert soils of Gansu Province Study on effect of enhancing yield of winter wheat by applying two kinds of controlled release nitrogen fertilizer Dynamics of different soil nitrogen pools after appIying different types of nitrogen fertilizers Dynamics of soil fixed NH4+ and soil microbiomass nitrogen in the growing season of winter wheat Effects of different applying amounts of N fertilizer on the accumulated content of nitrate in the Chinese cabbage Effect of applying controlled release nitrogen fertilizer on yield enhancement of winter wheat Effect of nitrogen fertilizers on methane oxidation in soils by methan otrophs Index of precision fertilizer in high yield region of Taihang Piedmont Study on the annual balance application of nitrogen fertilizer in the system of wheat relay intercropped with corn and peanut 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 Effect of long term fertilization on soil profile nitrogen storage in a reddish paddy soil Law of field soil ammonia volatilization in summer maize under different fertilizer patterns Study on the correlations between transplanting date and nitrogen fertilizer efficiency of flue-cured tobacco (Nicotiana tabacum L.) Effects of sulfur- and polymer-coated controlled release urea on yield, photosynthetic characteristics and nitrogen fertilizer efficiency of rice Effects of subsoiling and N fertilizer application on dry matter accumulation, nitrogen use efficiency and yield of summer maize Effects of urea, (NH4)2SO4 and NH4HCO3 on nitrification and acidification of a red soil Effects of combining application of Mg, Zn and Mo fertilizers on leaf biomass and medicinal quality of ginkgo seedlings Effect and mechanism of organic-inorganic compound fertilization on chemical fertilizer utilizationI. Effect of urea compounded with organic material on maize yield and fertilizer utilization Effects of water management patterns and nitrogen fertilizer levels on nitrogen use efficiency of rice Effects of nitrogen fertilization on biomass, caloric value and ash content of Helianthus tuberosus L. Research on nitrogen fertilizer recommendation indicator system establishment using soil tested total N and organic matter in rapeseed Response of winter wheat to different nitrogen managements in North Central China Effects of different cultivation patterns and nitrogen fertilizer on accumulation, distribution and use efficiency of nitrogen in winter wheat/summer maize rotation system on semi-dryland farming Effects of nitrogen fertilization on crop water stress index ofsummer maize in red soil Effects of controlled release N fertilizer on photosynthetic characteristics and yield of cotton Historical comparison on the response curves of rice yield-nitrogen application rate in Tai Lake Region Effects of Controlled Release Nitrogen Fertilizer on Yield and NitrogenContent of Soil and Apple Tree Effects of Nitrogen Fertilizer and Planting Density on Yield Loss Percentage of Mechanical Harvesting in Rapeseed Effects of Water Management and Slow/Controlled Release Nitrogen Fertilizers on Biomass, Nitrogen Accumulation, Translocation, and Distribution in Rice Effects of Postponed Application of Nitrogen Fertilizer on Yield and Physiological Characteristics of Flag Leaf in Wheat under Post-Anthesis Heat Stress Dynamic Responses of Nitrogen Accumulation and Remobilization in Summer Maize Organs to Nitrogen Fertilizer Effect of Interaction between Nitrogen Rates and Irrigation Regimes on Grain Yield and Quality of Rice Effects of different fertilizer application combined with different DPC quantities on photosynthesis property and yield of cotton directly seeded after wheat Effects of nitrogen fertilizer on yield components of different genotypic winter wheat in sub-humid farmland ecologic system Effects of nitrogen fertilizer and genotypes on the nitrogen and phosphorus accumulation of winter wheat grain during grain-filling period in a sub-humid farmland eco-system Concentration change and migration characteristics of nitrogen in the paddy field of Ningxia Yellow River Irrigation Area Yield and nutrient balance of lettuce as influenced by reduced and optimized nitrogen application Effect of topdressing time of nitrogen fertilizer and controlled-release coated urea on winter wheat yield and apparent nitrogen recovery rate Effect of nitrogen fertilization on cadmium translocation in soil-mustard system Effect of combination use of Zn and N fertilizers on yield and Zn content in winter wheat Influence of N Fertilizer on N Accumulation and Distribution of Different Panicle Rice in Irrigated Region of Xiliaohe Plain Analysis of the effect of water and nitrogen fertilizer in farmland of Loess Plateau Study on physiological effect and fertilizer utilization rate of controlled release nitrogen fertilizer for pepper Study on the transformation and iron provision mechanism of iron fertilizers in the calcareous soil INVESTIGATION OF NITRATE POLLUTION IN GROUND WATER DUE TO NITROGEN FERTILIZATION IN AGRICULTURE IN NORTH CHINA N,P,K uptake by winter wheat and maize as influence by different combinations of irrigation water and nitrogen fertilizer Effects of nitrogen fertilizer on chalkness ratio and cooking and eating quality properties of rice grain Study on cotton nitrogen diagnosis with reflectance meter The Effects of Timing of N Application on Barley β-glucanase Activity and Malt Quality Effects of fertilizer-N application for double early rice on the yield,nitrogen use efficiency and soil nitrogen content of double late rice Effects of type and application rate of nitrogen fertilizer on source-sink relationship in summer maize in North China Plain Effect of controlled release nitrogen fertilizer on the morphological and physiological characteristics and senescence of root system during late growth stages of hybrid rice Characteristics of nitrogen accumulation,distribution and translocation in winter wheat on dryland Effects and rational application of controlled-release nitrogen fertilizer in paddy field of southern China Fate and recovery efficiency of controlled release nitrogen fertilizer in flooding paddy soil Nitrogen recommendation of cauliflower based on different soil Nmin target values The fate of nitrogen forms of nitrogen fertilizers under alternate leaching and drying conditions Effects of Different N Management Modes on Grain Yield and Quality as well as Fertilizer N Use Efficiency of Winter Wheat Effects of Nitrogen Fertilizer Rate on Uptake, Distribution and Utilization of Nitrogen in Winter Wheat under High Yielding Cultivated Condition Effects of Transplanting Density and Nitrogen Fertilizer on Yield Formation and N Absorption in a Two-line Intersubspecific Hybrid Rice “Liangyoupeijiu” Coupling Effects of Irrigation and Nitrogen Fertilizer on Protein Composition and Quality of Winter Wheat Cultivar Jimai 20 Effects of Wheat Residue Incorporation and Nitrogen Management Techniques on Formation of the Grain Yield of Rice Carbon and Nitrogen Metabolism and Nitrogen Use Efficiency in Summer Maize under Different Planting Densities Effects of Straw Mulching Plus Nitrogen Fertilizer on Nitrogen Efficiency and Grain Yield in Winter Wheat Effect of Nitrogen Fertilizer Application on Development of Boll and Fiber Quality in High Fiber Quality Cotton Population quality and grain yield construction of mid-season indica hybrid rice “Wandao153” under different N applications Characteristics of N loss and its environmental effects in the dryland of Huang-Huai-Hai plain THE FATE OF NITROGEN FERTILIZE IN WINTER WHEAT GROWTH SEASON UNDER HIGH SOIL FERTILITY CONDITION Effects of Sulfur and Nitrogen Fertilizer Combination on Nitrogen Transfer and Leaf Senescence in Stay green Wheat Interactive effects of irrigation and nitrogen fertilizer on nitrogen fertilizer recovery and nitrate-N movement across soil profile in a winter wheat field Effect of nitrogen application time on dynamics of nitrate content and apparent nitrogen budget in the soil of summer maize fields Biocycling of Nine Nutrient Elements in Winter Wheat on a Calcareous Alluvial Soil From Beijing Effects of nitrogen fertilization on soil respiration during maize growth season. Effects of nitrogen rate on nitrogen fertilizer use of winter wheat and content of soil nitrate-N under different fertility condition Response of alfalfa and smooth brome to nitrogen fertilizer in monoculture and mixed grasslands Effects of straw returning and nitrogen fertilizer application on root secretion and nitrogen utilization of rice Effects of different slow/controlled release nitrogen fertilizer on tall fescue turf growth and nitrogen volatilization Effects of Nitrogen Application Amount on Characteristics of Nitrogen Utilization and Yield Formation in High Yielding Early Hybrid Rice Characteristics of Accumulation and Distribution of Nitrogen and Dry Matter in Wheat at Yield Level of Ten Thousand Kilograms per hectare