I was checking on fertilizer prices today
Triple 10 is $11.75 for 50# or $447.00 a ton.
Triple 17 is $15.50 for 50# or $595.00 per ton.
If I figured right since fertilizer numbers are a percentage ratio and the weight being the same
10-10-10 is 2.23lb
17-17-17 is 1.75lb
So if its applied at a lbs per acre value as it should be...
100lbs per acre 17-17-17 would cost $175
and 10-10-10 would cost $223 acre
With that 100lb/acre ratio you could fertilize 3.4 acres with the 17-17-17 = (340lbs per ton)
And 2 acres with the 10-10-10 (200lbs per ton)
With out actually knowing the actual soil needs I'll use some generalized recomended application rates from the U Mass Veg Management Guide
Pumpkins/squash (broadcast/incoporate) per acre
Med soil fertility N 50lbs P 60lbs K 60lbs
Potato (band placement at planting)
Med soil fertility N 120 lbs P 120lbs K 200lbs per acre
Tomato broadcast/incorporate at planting
Med soil fertility N 100lbs P 100lbs K 150lbs per acre
Pepper broadcast/incorporate at planting
Med soil fertility N 50lbs P 100lbs K 100lbs per acre
Cucumber/melon broadcast/ incorporate at planting
Med soil fertility N 50lbs P 60lbs K 60lbs per acre
Then several weeks after transplant side dressing is usually only with N exept for certain root crops such as potato can benifit from additional K
I like to use a water soluable fert at planting and afterwards because side dressing with plastic mulch is more difficult. Maybe $35-50 for 25 lb bag 1-2 teaspoons per gal ratio mixed in a sprayer tank and direct application to plants. Plus can add calcium too.
Usually plants never use up all the available P and K in the soil so it can build up over time but N dissapates quickly and need to be replaced
Corn uses large amounts of nitrogen.
When I lived in Maine many hay farmers had their fertilizers customed mixed from soil tests to save money. Obviously why spend more than you have to especially with the prices of high quality seed, mulches, diesel etc.