utilization rate of fertilizer N
adequate rate of utilization of grassland forages
N fertilizer utilization rate
N-fertilizer utilization rate
rate of fertilizer utilization
rate of utilization of repair positions in car dep
rate of utilization of trailer
utilization rate of fertilizer
optimal application rate of fertilizer N
rate of N fertilizer applied
the maximum economic rate of N fertilizer applicat
the maximum economic rate of N fertilizer application
apparent utilization rate of nutrients
coefficient of utilization of automobile
coefficient of utilization of installed capacity
coefficient of utilization of maximum load