late closing of crop 迟封垄

finish closing of crop 完全封垄

degree closing of crop 封垄程度

perfect closing of crop 全部封垄

incomplete closing of crop 不完全封垄

date of closing of crop 封垄期

time of closing of crop 封垄期

degree of closing of crop 封垄程度

Closing of standing Crop 林木之郁闭