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Calcimator

Crop Rotation Planner

Plan a 3-year crop rotation. Compare nitrogen credits, fertilizer savings, yield impacts, and net returns for different rotation sequences.

Inputs

acres
$/bu
$/bu

Results

Avg Net Return per Acre/Year

$359.79

≈ 7 tanks of gas

Total 3-Year Net Return/Acre$1,079.38
Total N Credits (3-yr)40 lbs/acre
Fertilizer Savings (3-yr)$22.00
Total 3-Year Revenue/Acre$2,707.38
Total Cost3yr$1,650.00
How to Use This Calculator
  1. Enter the current crop and select the following crop in rotation.
  2. Set soil type and drainage class.
  3. Input current soil fertility levels (nitrogen, phosphorus, potassium).
  4. Review expected yield benefit and nitrogen credit from the previous crop.
  5. Use outputs to adjust fertilizer rates and plan input purchasing.

How the result changes with Corn Price

Corn PriceAvg Net Return per Acre/Year
$3.00$58.96
$5.50$359.79
$8.50$720.79
$11.00$1,021.63

What each input means

Year 1 Crop
Select crop: 1 = Corn, 2 = Soybean, 3 = Wheat, 4 = Alfalfa.
Field Size
Field size for total revenue calculations.
Corn Price
Expected corn selling price per bushel.
Soybean Price
Expected soybean selling price per bushel.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Year 1 Crop = 1, Year 2 Crop = 2, Year 3 Crop = 1, Field Size = 160 = 6 input(s) provided
  2. Calculate Avg Net Return per Acre/Year
    Avg Net Return per Acre/Year
    359.79 = $359.79
  3. Calculate Total 3-Year Net Return/Acre
    Total 3-Year Net Return/Acre
    1079.38 = $1,079.38
  4. Calculate Total N Credits
    Total N Credits
    40 = 40

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