氮肥

• Animal nitrogenous fertilizer
  动物氮肥料
• Application and recovery of 15 n - fertilizer for spring maize in black soil of jilin
  研究吉林黑土春玉米对氮肥的吸收利用
• Summary on operation of shift unit of hualu - hengsheng large scale nitrogenous fertilizer
  华鲁恒升大氮肥变换装置运行总结
• Study on the conditions for the action of some plant synergists for nitrogen fertilizers
  植物性氮肥增效剂作用条件的研究
• Releasing characteristic of zeolite nitrogen on briquetting and molten station
  压片法和熔融盐法制备沸石氮肥的养分释放特性
• The amount of nitrogenous fertilizer application on till - less wheat and its oper ational skills
  免耕小麦的氮肥用量和运筹技术
• Nitrogen fertilizer distribution depends on the soil fertility and the crops yield goals
  氮肥分配取决于土壤肥力和作物产量目标。
• Products used in agriculture . determination of nitrogen content in class b nitrogenous fertilizers
  家用产品.乙类氮肥.氮含量的测定
• Research for comprehensive utilization of heat - energy in gas - produce process in nitrogenous plant
  氮肥厂造气工段热能综合利用的研究
• Products used in agriculture . determination of nitrogen content in class c nitrogenous fertilizers
  家用产品.丙类氮肥.氮含量的测定