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- Broadcast before planting and annually after harvest, 4.0 pounds of 6-12-12 or equivalent per 100 square feet.
- Broadcast before planting and annually after harvest, 3.0 pounds of 6-12-12 or equivalent per 100 square feet.
- Broadcast before planting and annually after harvest, 2.0 pounds of 6-12-12 or equivalent per 100 square feet.
- Broadcast before planting and annually after harvest, 0.4 pounds of 34-0-0 or similar per 100 square feet.
- Annually, before spears emerge in the spring and after harvest supplement the above fertilizer recommendations with 1.0 pound of 34-0-0 or similar per 100 square feet. This will encourage development of large spears.