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ProCrop |
Percent of Yield Produced by Various Soybean Growth Stages
| Growth Stage Yield | Days After Bloom Begins | Days to Maturity | Percent of Total |
| Begin pod | 15 | 68 | -- |
| Full pod | 24 | 59 | -- |
| Begin seed | 33 | 50 | 25 |
| Full seed | 48 | 35 | 47 |
| Begin maturity | 73 | 10 | 95 |
| Full maturity | 83 | 0 | 100 |
-Source: University of MN
If all leaves on a soybean plant are killed between full seed stage and beginning maturity, 53% or less of yield can be lost. A freeze before maturity has less effect on yield the closer the freeze date is to mature date.
Air temperatures of 29 degrees F are necessary to completely kill soybean plants.
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