The use of barbed wire made the land of a farmer well defined and secured it from wildlife.
Step-by-step explanation:
The introduction of the barbed wire also came with the clear demarcation of the farmlands owned by farmers right next to each other that were solely their own property
This private ownership made the farmers build up boundaries.
The purpose served by the barbed wire was defensive too though as it was made so as to fend off wild animals that would destroy or eat the commercially grown crops being produced there.
The wire provided safety for the farms and made them more fruitful and productive.