Photo-Ecological Characteristics of Six Broad-Leaved Species Including Heptacodium miconioides in the Tiantai Mountains in Zhejiang Province COMPARATIVE STUDY OF DROUGHT TOLERANCE AND TOLERANCE MECHANISMS IN WILD AND CULTIVATED DICHONDRA REPENS Effects of increased atmospheric CO2 and N supply on growth, biochemical compositions and uptake of nutrients in Gracilaria lemaneiformis (Rhodophyta) EFFECT OF WATER STRESS AND NITROGRN ON SOME PHYSIOLOGICAL CHARACTERISTICS AT TILLING STAGE OF WHEAT 应用~(15)N示踪法研究芹菜的硝酸盐积累 Tolerance of wheat genotypes to Al toxicity in relation to their rhizosphere pH change, NH4+ and NO3- uptake, and nitrate reduction under Al stress Investigation and evaluation on nitrate pollution in groundwater of Shunyi District THE NITRATE CONTENT DIFFERENCE AND THE REASON AMONG FOUR SPINACH VARIETIES INVESTIGATION OF NITRATE POLLUTION IN GROUND WATER DUE TO NITROGEN FERTILIZATION IN AGRICULTURE IN NORTH CHINA EFFECTS OF CALCIUM CHELATOR ON THE NITROGEN METABOLISM AND DRY MATTER ACCUMULATION IN WHEAT SEEDLINGS Effect of fertilization on nitrate and nutrient forms of lettuce in acid garden soils Influence of different nitrogen levels on biomass, nitrate and oxalate accumulation in spinach Study of nitrate leaching potential from agricultural land in Northern China under long-term fertilization conditions Study on cotton nitrogen diagnosis with reflectance meter Effects of 5-Nitroguaiacol Sodium on Nitrate Reduction and Assimilation in the Leaves of Chinese Chive Effect of Nitrogen Nutrition on Nitrate Reductase Activity and Mineral Elements Absorption of Isatis indigotica Fort.at Seeding Stage Effects of Nitrate Level on the Physiological Characteristics and Growth of Apium graveolens Seedlings Study on Relationship between Nitric Oxide and Nitrate Reduction in Leaf of Alnus cremastogyne Effect of Exogenous Melatonin on the Antioxidant System of Cucumber Seedlings Under Nitrate Stress Simulating Critical Nitrogen Dilution Curve and ModelingNitrogen Nutrition Index in Winter Wheat in Central Henan Area Influence of nitrate reduction in leaf blades on nitrate-N concentration in petioles of spinach Effect of partial replacement of NH4+ by NO3- on nitrate reductase activity and their genetic expression patterns in rice Effects of different nitrogen levels on seedling growth,nitrate and its secondary metabolites content in Aloe vera seeding Mechanism of nitrate accumulation of Chinese cabbage under properly enhanced ammonium Relationship between soil texture and nitrate distribution and accumulation in three types of soil profile in Shaanxi Effects of potassium on sugar, vitamin C, nitrate contents and their relevant enzymes of cucumber in solar-greenhouse Nitrate accumulation in petiole and blade of different spinach cultivars and its relation to plant growth Application of ASI systematic approach on balanced fertilization of spinach Effects of rhizosphere fertilization on nitrate content of rape Effects of molybdenum on nitrate metabolism of winter wheat Nitrate accumulation and distribution in soil profiles in ecosystem of upland on the Loess Plateau Recent advances in molecular biology of nitrate transporters in higher plants Effect of different water and nitrogen management on yield and nitrate content of amaranth and spinach Study on N use efficiency of chinese cabbage and nitrate leaching under open field cultivation Genetic behavior of nitrate concentration genotype differences in pak-choi Effect of Nitrate with Seawater Stresses on Photosynthetic Characteristics and Ionic Content in Catharanthus roseus Seedlings Effects of Exogenous Chlorine on the Growth and Quality of Aloe vera Seedlings Effects of Different Fertilizations on the Nitrate Contents in the Fruits and Soil of Greenhouse Cherrytomato Nitrate distribution characteristics in soil at fertilization on cucumber at sunlight greenhouse in Loess Plateau Dynamics of nitrogen and phosphorus concentrations and nitrate reductase and acidic phosphatase activities in Imperata cylindrica on copper mine tailings Transfer of mineral nitrogen in maize root zone soil under different furrow irrigation modes Nitrification inhibition and dose-dependent effect of dicyandiamide on sandy, loamy and clayey soils Yield and nutrient balance of lettuce as influenced by reduced and optimized nitrogen application Effects of NH4+-N/NO3--N ratio on pak-choi nitrogen metabolism and enzyme activity under weak-light Soil nitrate leaching and control methods in the piedmont of North China Plain Influence of exogenous N resource on triploid Populus tomentosa leaf decomposition Dynamics of soil carbon and nitrogen in plowed layer of spring corn and spring wheat fields mulched with straw and plastic film Effect of exogenous Gly on the growth and oxidative damage of alfalfa seedling under Cd stress Interactive influence of nitrogen and phosphorus application rate on wheat yield in North Henan, China Leaching characteristics of nitrogen and phosphorus in treated paddy fields with chicken manure Research Progress on Microbial Community Structure in Solid-phase Denitrification Systems Genotypic differences in nitrogen uptake by maize inbred lines its relation to root morphology Effects of inorganic nitrogen compounds and pH on the growth of duckweed Lemna aequinoctialis The effects of plant growth regulators on growth characteristics of starwort root cell The influence of nitrate reductase and soluble protein on the provenance growth of Quercus mongolica Cloning and Sequence Analysis of Nitrate Reductase Gene from Beta vulgaris by RT-PCR Damage Repair Effects of He-Ne Laser on Wheat Seedlings Exposed to Enhanced Ultraviolet-Birradiation STUDIES ON DEVELOPMENT OF NITRATE REDUCTASE IN TREES AND PROSPECT FOR APPLICATION THE BLOCKING EFFECT OF PHYLLANTHUS EMBLICA L.ON THE FORMATION OF STRONG CARCINOGEN N-NITROSO COMPOUND IN HUMAN BODY A PRELIMINARY STUDY ON NITRATE REDUCTASE ACTIVITY IN VIVO ATTENUATION OF FOUR SPECIES OF POPLAR SEEDLINGS EFFECT OF DIFFERENT LEVELS OF NITROGEN FERTILIZER ON NITRATE REDUCTASE ACTIVITY IN LEAVES OF CUNNINGHAMIA LANCEOLATA WITH DIFFERENT GROWTH RATES Study on the Relationship between Nitrate Reductase Activity, Nitrogen Storage Contents and the Growth of Chinese Fir Nitrification-inhibiting Effect of Dicyandiamide and Sulfur on Apple Orchard Soil Using Barometric Process Separation Cloning and Expression Pattern Analysis of NRT2 Gene in Non-heading Chinese Cabbage Nitrification-inhibiting Effect of Dicyandiamide and Sulfur on Apple Orchard Soil Using Barometric Process Separation The Nitrate Uptake and Accum ulation 0f Pal choi Effects of Nitrogen Forms on Content and Distribution of Nitrate and Oxalate Forms in Spinach Plants Effects of Different Nitrogen Concentrations on Yield and Quality of ChineseChive Cloning and Expression Analysis of Nitrate Reductase Gene in Camellia sinensis Studies on the Chemical Constituents of Gossampinus malahorica(L.) iMerr. (Ⅱ) Nitrogen absorption/distribution and physiological characteristics of Salix matsudana seedlings grown in hydroponic solution Changes of soil nitrogen types and nitrate accumulation in vegetables with single or multiple application of dicyandiamide Ecological distribution and nutrient limitation of phytoplankton in adjacent sea of Guanhe Estuary in spring Sequences of low-copy nuclear gene support the monophyly of Ostrya and paraphyly of Carpinus (Betulaceae) Effects of nitrogen forms on nutrient uptake and growth of trees Effect of enhanced ammonium nutrition on photosynthesis and nitrate reductase and glutamine synthetase activities of winter wheat Response of lettuce to different nitrogen forms Effect of inorganic nitrogen on CH4 oxidation in soils Advances in studies on accumulation and leaching of nitrate in farming soil Effects of Zn levels on nitrate uptake and nutritional quality of celery