In many of these cases, the land is dedicated for ""Agricultural land"" use. As for the auctioned real estate of agricultural land, even if it is large, the appraisal value is very low. In addition, even if you are a general auction real estate expert, very few people have ever bid on the property themselves or acted as a bidding agent because of the restrictions on bidding.
"Agricultural land" is land that is used for cultivation in what is defined as an agricultural land area. In the acquisition of agricultural land, there are restrictions on converting it to other uses, not only in bidding for auctioned real estate, but also in general real estate transactions. In general, permission or notification is required for the purchase of agricultural land.
Therefore, in many cases, if you do not have such permits in advance, your bid for real estate auctioned off for agricultural land will be considered invalid.