Why do agricultural product orderers recruit people for a long time?

The long-term recruitment of agricultural products orderers is because agricultural products are listed all the year round. The mature seasons of agricultural products are different. Subscribers usually leave after selling an agricultural product. When the agricultural products are ripe in the next season, they need to recruit orderers, and now farmers are not willing to sell their hard-earned things to middlemen cheaply, so they need many orderers to help them sell them.