施用率
application of fertilizer through irrigation
施用技术
Application technique
application technic
Application method
application technology
application techniques
technology of applying fertilizer
fertilization technique
application techonlogy
applying technique
Applied techniques
Applying method
fertilizer efficiency
technology of using
施用氮肥
Application of Nitrogen fertilizer
N fertilization
Nitrogen
施用次序
Sequence of fertilizer application
Application sequence