Bulk Spray is a new Paddock Activity that was added to the Farmware app earlier this year, here's an overview:

Bulk Spray is a great activity type for experienced Farmware users that need to record a number of chemical applications across a number of paddocks/crops all at once. It's much faster and can be particularly useful if you know the total amount of the chemicals that have been used, but need to apply a pro-rata rate to each paddock/crop based on its area.

For example, you may combine a pesticide, a herbicide and a fungicide into a combination to load into your aerial sprayer which applies the chemical mixture to 7 paddocks at a consistent rate. This could take a while to record in Farmware if you used the normal multi-spray form, but with Bulk Spray you can select the 7 paddocks and 3 chemicals first and have Farmware perform the calculations based on the total of each chemical that you used.

The main restriction in the Bulk Spray form is that you need to already have the Chemcals you are going to use entered into Farmware (this can be achieved via Settings > List Setup). If you wish to record spray targets (such as weeds) then these also need to have been entered before hand.