What does it mean that Longshan people are called Little Mandaman?

Longshan people are called Xiaoman Daman, which means solar terms and harvest season. Xiaoman is one of the twenty-four solar terms and the second solar term in summer. Xiaoman means that the seeds of summer crops are full, but not yet mature, just small and not yet full. Among the 24 solar terms, there is no fullness. The so-called fullness actually refers to mango. It means that the seeds of crops with awns, such as barley and wheat, are ripe and it is very urgent to grab the harvest.