Organic Asparagus Production
This publication discusses asparagus variety selection, insect pests and diseases, weed control, harvest and post-harvest handling for organic asparagus.
Because asparagus is a perennial crop that will be in the ground for at least 10 to 15 years, attention to selection and preparation of the planting site is especially important. Asparagus performs best if the soil pH is within a range of 6.5 to 7.5. Phosphorous, potassium, and lime amendments—based on a soil test—should be incorporated prior to planting. If perennial weeds are a problem, a sequence of tillage and cover cropping—with smother crops like sorghum-sudan or buckwheat—at least a year in advance of planting will help control weeds. Green manure crops also improve soil structure and enhance soil fertility.