Base Inputs
Application Rate (t/ha)
Costs Product ($/t)
Transport ($/t)
Application ($/t)
Total Cost Per t applied $150.00
Total cost of Product per Ha applied $150.00
Change in Crop Gross Margin
On Farm Grain Price ($/t)
Average Yield ((t/ha)
Total Income $500.00
Expected Change in Yield
Improvement in crop gross margin ($/ha) $50.00
Factor Limiting Saving
Initial Soil pH
Only pH below 6 shows a benefit to lime req

Additional Factors

Kg $/t landed and applied $/ha increase in cost
Change in N Requirements
$10.60
Change in P Requirements
-$7.50
Change in K Requirements
-$7.30
Change in Lime Requirements
-$6.75
Change In Inputs -$10.95

Impact of Product over 10 Years

Cost of Funds
%
Improvment in
Gross Margin
Benefit Reapply Product? Apply input
Changes?
Changes in
input
Net Benefit
Year 1
%
$50.00
-$10.95 $60.95
Year 2
%
$40.00
-$10.95 $50.95
Year 3
%
$30.00
$139.05 -$109.05
Year 4
%
$50.00
-$10.95 $60.95
Year 5
%
$40.00
$0.00 $40.00
Year 6
%
$30.00
$0.00 $30.00
Year 7
%
$30.00
$0.00 $30.00
Year 8
%
$50.00
$0.00 $50.00
Year 9
%
$0.00
$0.00 $0.00
Year 10
%
$0.00
$0.00 $0.00
Total Value of Changes to Income $158.52

Summary of Outcome

Total Product Outlay ($ / ha) $150.00
Present value of change in income ($/ha) $158.52
Net Benefit ($ / ha) $8.52
Proceed with proposed amelioration
Background

The aim of the biological inputs calculator is to allow growers to test the economic impact of biological inputs on their existing returns and to test the effect of changing each of their assumptions. It is intended as a means of assessing potential financial benefits of applying biological inputs as part of the farming system.

The calculator allows you to adjust when products are re-applied in the out-years, and requires you to estimate values of key inputs and perceived outcomes.

For more information on the testing of biological inputs, please see this Biological Farming Inputs