Final answer:
The proportioned ratio for the brass-siphon device is determined to be 17:1. This means for every cup of test stock solution used, 17 cups of the solution were delivered.
Step-by-step explanation:
The question pertains to determining the proportioned ratio for a brass-siphon device used for applying fertilizer solution. To calculate the proportioner ratio, you should divide the total amount of solution collected by the amount of test stock solution used. In this case, 17 cups of solution were collected from 1 cup of test stock solution.
The proportioned ratio is therefore 17:1, which means for every one unit of stock solution, the device applies 17 units of the diluted solution.