Covering hay bales in groups is generally more efficient and effective than covering them individually. When bales are covered as a group, it simplifies the process and ensures that the entire stack is protected with fewer materials and less labor.
Group covering also helps in maintaining a consistent microenvironment, reducing the risk of moisture penetration and ensuring uniform protection against weather conditions. However, it is essential to stack the bales properly to allow for adequate air circulation and prevent moisture buildup.