topdressing nitrogen 第1页

EFFECTS OF DIFFERENT TOPDRESSING NITROGEN TREATMENTS ON WINTER WHEAT GRAIN YIELD AND QUALITY Effects of Carbon and Nitrogen Metabolism and the Seed Yield of Sudangrass under Different Topdressing Nitrogen Fertilizers RESPONSE OF GRAIN YIELD AND PROTEIN TO NUMBER OF BASIC SEEDLING AND RATIO OF BASE TO TOPDRESSING NITROGEN IN WINTER WHEAT(Tritcum aestivum L.) Effects of Different Ratios of Base and Topdressing Nitrogen Fertilizer on the Leaf Senescence and Yield of Insect-resistant Hybrid Cotton Effects of topdressing nitrogen and plastic film mulched ridge–sowing furrow cultivation on nitrogen utilization of winter wheat on rainfed lands in Southern Shanxi Response of winter wheat to different nitrogen managements in North Central China Effect of topdressing nitrogen of intercropped maize strip on intercropped crop yields and soil nitrate nitrogen as well as its residual effect