This field my be required or is auto populating. We will want to ensure that this field has not be locked or populated in the batch template file. 
  1. From the administration tab, select Batch Entry
  2. In the task bar on the left select batch templates
  3. Select the arrows to the left of the Batch you are working in, Select Edit
  4. Navigate to the Select fields and defaults, Select the field that is required and uncheck the box to require this field or Remove the default text associated with the fieldImage of items to edit in Batch Template screen
  5. Save