Spring Oat: Nutritional Requirements
Determine lime and fertilizer needs by soil test. Maintain a pH of 6.0 or above for oat seeded alone. Where legume seedings are made, maintain a pH between 6.5 and 7.0. In the absence of a soil test, refer to the most recent soil test available for the field and adjust rates according to values listed in Table 1.2-5. Spring nitrogen recommendations are given in Table 1.7-2. No adjustment is made to N recommendations for previous crops.
All the fertilizer may be broadcast prior to planting or a portion applied with the drill and the remainder broadcast. To reduce fertilizer injury, do not apply more than 20 pounds (nitrogen) or 45 pounds (nitrogen + potash) per acre in the row with the seed.