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Medientyp:
E-Artikel
Titel:
An Observation of Nutrient Levels in Old, Unfertilized Rabbiteye Blueberry Plants
Beteiligte:
Austin, Max E.;
Gaines, T. Powell
Erschienen:
American Society for Horticultural Science, 1984
Erschienen in:HortScience
Sprache:
Nicht zu entscheiden
DOI:
10.21273/hortsci.19.3.417
ISSN:
2327-9834;
0018-5345
Entstehung:
Anmerkungen:
Beschreibung:
<jats:title>Abstract</jats:title>
<jats:p>Rabbiteye blueberry plants (<jats:italic>Vaccinium ashei</jats:italic>, Reade) which had been planted in 1947 and fertilized with complete fertilizers until 1962 were neglected for 14 years. Because of the vigorous growth, good foliage color, and quality fruit production of these unfertilized plants, soil and leaf nutrient levels were examined 20 and 21 years after the last fertilization. Whereas the soil pH was optimum at 4.5 both years, the soil P was very high in 1982 and medium in 1983. The soil K was medium in 1982 and low in 1983; the soil Ca and Mg were low both years. Soil micronutrients were low and typical for unfertilized Coastal Plain soils. Generally, all leaf nutrient constituents were on the low end of the ranges reported in the literature. Nonetheless the plants continued to grow and produce well, indicating that some old, deep-rooted rabbiteye blueberry plants require less fertilizer than had been thought previously.</jats:p>