Ehle Farms — Sprayer Pass ROI Calculator
Broadcast vs. spot-spray chemical cost, pass by pass · working draft v1
Burndown passes cover corn + soybean acres. Editing a pass's acres directly overrides the crop default.
All-broadcast chem cost / yr
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With spot on spot-able passes
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Annual chemical savings
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Savings vs. all-broadcast
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Passes
| Broadcast | Spot | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pass | Crop | Acres | % Acres Covered | Spray Coverage % | Chem $/ac | Total | % Acres Covered | Spray Coverage % | Chem $/ac | Total | Savings |
Three editable inputs per side. % Acres Covered = share of the crop's acres this pass actually runs over. Spray Coverage % = within those acres, share the nozzles actually spray (broadcast ≈ 100%; spot = what the cameras hit). Chem $/ac = chemical cost per fully-sprayed acre. Cost = acres × % acres × spray coverage × $/ac. A pass that exists in only one program has the other side zeroed — e.g. field clean-up only happens under spot. Fungicide + foliar stays 100/100 both sides — that broadcast+spot pairing in one pass is Duo's play; we model it next. Defaults = Ehle Farms working estimates, July 2026.
Where the savings come from — cost per pass
Still spent (spot program)
Saved vs. broadcast
Full bar length = all-broadcast cost of the pass