2020 SEVG recommends: Apply 1 to 2 lb boron (B) per acre (1 Tbsp/100? row.) with broadcast fertilizer for almost all of our vegetables. See TABLE 2. GENERAL FERTILIZER SUGGESTIONS FOR VEGETABLE CROPS starting on page 6. Given the plan to only fertilize the veggies and not the weeds in between, apply it at 1 Tbsp/100 ft. row.