IMPACT OF MULTIPLE FERTILIZER APPLICATIONS ON PLANT GROWTH, DEVELOPMENT, AND YIELD OF WILD LOWBUSH BLUEBERRY (VACCINIUM ANGUSTIFOLIUM AITON)

D.C. Percival, D.E. Janes, D.E. Stevens, K. Sanderson
An experiment examining the influence of multiple fertilizer applications throughout the two-year wild blueberry production cycle was examined at two commercial blueberry fields in Nova Scotia and Prince Edward Island during 2000 and 2001. A randomized complete block experimental design with nine treatments, five replicates, and a plot size of 6 x 8 m was used. The treatments used consisted of (1) no fertilizer application, (2) an initial fertilizer application of 200 kg•ha-1 of 14-14-14 (N:P2O5:K2O) in the first year (IFA), (3) IFA + 10 kg N•ha-1 prior to floral initiation of the first year of production (FI), (4) IFA + 10 kg N•ha-1 prior to dormancy of the first year of production (PD), (5) IFA + 10 kg N•ha-1 prior to bloom of the second year of production (PB), (6) IFA + FI + PD, (7) IFA + FI + PB, (8) IFA + PD + PB, and (9) IFA + FI + PD + PB. Multiple fertilizer applications significantly increased stem density (Mount Stewart and West Brook), leaf tissue N (Mount Stewart and West Brook), individual stem dry weight (Mount Stewart and West Brook), number of set fruit per stem (Mount Stewart), and harvestable yield (Mount Stewart and West Brook). Results from this study also indicated that the C:N ratio of the shoot may be an important factor regulation the yield potential. Therefore, results from this preliminary investigation indicate that multiple fertilizer applications can improve the nutrient status, growth, development, and harvestable yield of wild blueberries, and may be worth including in commercial cultural management practices.
Percival, D.C., Janes, D.E., Stevens, D.E. and Sanderson, K. (2003). IMPACT OF MULTIPLE FERTILIZER APPLICATIONS ON PLANT GROWTH, DEVELOPMENT, AND YIELD OF WILD LOWBUSH BLUEBERRY (VACCINIUM ANGUSTIFOLIUM AITON). Acta Hortic. 626, 415-421
DOI: 10.17660/ActaHortic.2003.626.57
https://doi.org/10.17660/ActaHortic.2003.626.57
Leaf nitrogen content, yield, fertilizer application
English

Acta Horticulturae