Effcet of N rates applied to summer maize on soil nitrate content during the following crop season and winter theat grain yield in Huang-Huai-Hai Plains Mechanism of nitrate accumulation of Chinese cabbage under properly enhanced ammonium Effects of combined application of different nitrogen sources and magnesium fertilizers on cabbage yield, quality and nutrient uptake Genetic Analysis of Nitrate Content in Radish(Raphanus Sativus L.) Effect of nitrogen application time on dynamics of nitrate content and apparent nitrogen budget in the soil of summer maize fields A Improved Testing Powder Method for Rapidly Determining Nitrate Content in Fresh Vegetable Effect of Nitrate Reductase (NR) Inhibitor on NR Activity in Oilseed Rape (Brassica napus L.) and Its Relation to Nitrate Content Genotypic variation of leaf SPAD value, nitrogen and nitrate content in maize Effects of N application with dripping irrigation on N absorption and utilization of apple Effects of water and fertilizers on nitrate content in tomato fruits under alternate partial root-zone irrigation INVESTIGATION OF NITRATE POLLUTION IN GROUND WATER DUE TO NITROGEN FERTILIZATION IN AGRICULTURE IN NORTH CHINA Cloning of Nitrate Reductase Gene of Lettuce and Effect of Exogenous γ-Aminobutyric Acid on Gene Expression and Nitrate Content in Leaves under High Nitrogen Level Effect of municipal green waste biochar addition on the growth, nitrate content and nitrogen use efficiency of greenhouse pakchoi Studies on the Nitrate Content of Different Pak-choi Genotypes