If you have an irrigation system, the most cost-effective way of applying fertilizer to your crops is...
THROUGH YOUR IRRIGATION SYSTEM! Nothing else even comes close:
|Fuel cost||Fuel for tractor/spreader -- varies widely -- how much do you pay?||Electrical power to run a 1 1/2 -hp pump -- typically less than 25 cents per hour of operation|
|Maintenance costs||Periodic oil, repairs, tires, etc (you should be amortizing these costs per hour of operation)||Virtually nil -- only winter drainage and storage in cold climates. The FD95 will work for years with almost no attention.|
|Labor cost||What is your time worth? Or - what will you pay someone to spread fertilizer?||Let the irrigation water do the work of spreading the fertilizer.|
|Equipment cost||Thousands of dollars for a spreader, tractor, etc. (Sure, you may already have these, but every hour you put on them is an hour you'll eventually pay in replacement costs)||$1395.00 + shipping
(plus cost of a chemigation check valve or backflow preventer and tank if you don't already have them)