ISHS Acta Horticulturae 415: VIII International Asparagus Symposium
LONG TERM YIELD RESPONSE OF ASPARAGUS TO PLANTING DENSITY |
| Authors: | D.C. Sanders, J.D. Cure, K.E. Bailey, L. Turlington, M. Pridgen, W. Sperry, J.C. Gilsanz, M. Villagarcia, S. Carballo, P. David, C. Prince, M. McMurtry, O. Bandele |
| Abstract:
Increasing plant density from 21,550 to 43,100 per hectare by doubling the rows/bed increased cumulative yield 64 to 80% for 3 hybrid lines of asparagus and but only 6% for ‘Rutgers Beacon’ grown at Clinton, NC. The effects of doubling the plant density were still apparent the 13th year of harvesting. In another study, yields of ‘Princeville’ (‘Mary Washington’ selection) grown at densities from 14,000 to 86,000 plants/ha, yields were also increased by double rows at various in-row spacings for 8 years. In a third study, density ranged from 21,000 to 387,900 plants/ha. The response to rows/bed was shown to be dependent on within-row spacing, and to be persistent into the period of crop decline at 11 years. Efficient use of bed space (double rows) exerted a larger influence on productivity than theoretical planting density. | |
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