Traditional Culture Encyclopedia - The 24 Solar Terms - A riddle about folk customs

A riddle about folk customs

Reference answer:

"On June 6th, watching the valley show" here refers to watching crops heading and blooming on the sixth day of the sixth lunar month.

"Before the summer is over, cut the grain and feed it to the old cow." Before summer is over, there is no hope of harvest, just like useless weeds, which can only be cut and fed to old cows.