Placing the transplant on the mound protects the plant from being washed out or covered by soil during a heavy rain. Furrows are not completely filled in at planting. Instead, the root mass of the transplant is covered, and the soil is gradually moved into the furrows with cultivation over the first growing season. This method is not recommended in New York State because it is expensive and requires considerable care and expertise. Table 12.1 Recommended spacing.
Mature ferns can become large and difficult to cover with sprays if planted too closely.
If a large amount of lime is needed, apply half before plowing and incorporate the remainder after plowing. Remember, asparagus will be in the field for eight to 12 years, so proper soil preparation prior to planting is essential. See Table 12.2 for the recommended rates of nitrogen, phosphorus, and potassium. Go to Cornell Nutrient Analysis Lab website to find out how to get soil samples tested. Table 12.2 Recommended nutrients based on soil tests.