Effect of base nitrogen application depth on summer maize yield, nitrogen utilization efficiency and nitrogen residue Effects of Nitrogen Application Depth on Water Consumption Characteristics and Dry Matter Accumulation and Distribution in Rainfed Wheat EFFECTS OF FERTILIZER APPLICATION DEPTH ON NITROGEN UTILIZATION AND YIELD IN DRY LAND WHEAT Effectsof fertilizer application depth on senescence of flag leafafter anthesis and yield in dry land wheat Effect of Mn application depth on Mn deficiency of two wheat genotypes