CORN YIELD CALCULATOR:
|CORN YIELD CALCULATOR: |
|Record your state crop district and county. |
|Walk 35 paces into the field to start sampling to avoid the end row effect. |
|Measure row spacing and record. |
|Measure 30 ft. of row length. Count all ears in this row, then randomly select an adjoining row and count all ears in 30 ft. of this adjoining row. |
|Record the total of both rows to get the ear count in 60 ft of row and average these to get ears in 30 ft row. |
|Pull the fifth, eighth and 11th ear from one row of the plot. |
|Measure length of grain on each of these three ears in inches. Average these measurements, and record as one number. |
|Count the number of kernel rows around on each ear. Average these three observations and record them. |
| |
|YIELD FORMULA: (Ear count in 30ft of row X inches of grain length per ear X average kernel rows around ear) ¸ (row spacing in inches) X (.09 adjustment |
|factor) = Yield in bu. per acre. |
| |
|EXAMPLE: [(40 ears in 30 ft x 6.5 inches of grain per ear X 16 kernel rows) ¸ (30-in rows)] X 0.9 adjustment factor) = 124.8 bu. per acre. |
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