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Oats Fertilization
Traditionally oats has been considered a minor crop in northeast North Dakota, as a result it has not been fertilized to obtain economic high yields. Oats respond well to our essential soil nutrients of nitrogen and phosphorous. Fertilizer requirement for a 90 bushel/acre oat crop is similar to a 50 bushel/acre wheat crop, requiring about 125 pounds of total nitrogen and 25-30 pounds of broadcast phosphorous on medium testing soils. High moisture years and excessively high fertility can cause lodging in oats. Fertilize according to soil test results.
| Soil Test Phosphorus, ppm | Soil Test Potassium, ppm | ||||||||
| Yield Goal | Soil N plus Fertilizer N required | VL | L | M | H | VL | L | M | H |
| bu/a | lb/a - 2' | 0-3 | 4-7 | 8-11 | 12-15 | 0-40 | 41-80 | 81-120 | 121-160 |
| --------------- lb P2O5/A--------- | -------------------lb K2O/A------------ | ||||||||
| 50 | 65 | 30 | 20 | 15 | 0 | 55 | 40 | 25 | 10 |
| 70 | 90 | 40 | 30 | 20 | 0 | 80 | 55 | 35 | 10 |
| 90 | 115 | 50 | 40 | 25 | 10 | 100 | 70 | 40 | 15 |
| 110 | 145 | 65 | 45 | 30 | 10 | 125 | 90 | 50 | 15 |
For more information see NDSU Extension Circular SF 716 at http://www.ext.nodak.edu/extpubs/plantsci/soilfert/sf716w.htm
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