15N tracing 第1页

THE EFFECTS OF SOIL WATER CONDITIONS ON NITROGEN FERTILIZATION USE EFFICIENCY STUDIES ON THE FUNCTIONS OF DIFFERENT UNIT-ROOTS AND THE GROUPING OF ROOTS IN WINTER WHEAT Effects of Transplanting Time and Nitrogen Fertilizer on the Yield, Market Value and N Uptake of Flue-cured Tobacco by using 15N Tracing Technique Nitrogen Utilization Efficitncy and Fate of Fertilizer under Different Transplanting Density Absorption and Distribution of PM2.5 NH4+ and NO3- in Populus euramericana Neva.