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THE ESSENTIAL CHEMICAL COMPOSITION OF LEAVES AND FRUITS TO HIGHBUSH BLUEBERRY GROWTH ON THREE PLANTING SUBSTRATES

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Author(s): Irina Ancu | Silvia Nicolae | Claudia Nicola | Paulina Mladin | Sergiu Ancu

Journal: Scientific Papers of the Research Institute for Fruit Growing Pitesti, Romania
ISSN 1584-2231

Volume: XXVII;
Start page: 56;
Date: 2011;
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Keywords: Vaccinium corymbosum | planting substrates | berry | chemical composition

ABSTRACT
Vaccinium corymbosum is native to North America, where he is growth in the wild flora. In Europe, it was introduced in 1925. In Romania, this species was introduced by prof. Stefan Nicolae, in 1968. Today in our country it is approximately 150 ha plantations with high bush blueberry. This small area is due especially by the low economic power of landowners, which can not support the costs of establishing a highbush blueberry plantation. In most cases, the growers have to face the high costs of materials required to reclamation and improvement of soil conditions so that they can be able to establishment of blueberry plantation. In the world, there is a great actuality for blueberry culture to find ways to amend the soil and have favorable conditions to high bush blueberry culture. After three studied years (2006-2008) on the effect of three different planting substrates on essential chemical composition of leaves and fruits: the foliar analysis phosphorus content showed that the Delicia cv. to the entire study period recorded the highest values versus the all cultivars; the fruits analysis showed the Simultan cultivar registered a significant increase by 19-28% of soluble solids (┬░Brix), by 15-27% of dry weight content, by 19-36% of ash content, by 19-36% of pH value, by 7-28% of K content, versus the others six studied cultivars; on average for the seven studied cultivars and three research years, the substrates by 5kg peat+5 kg manure+40 g sulphur powder and substrates by 5 kg peat+5kg manure treatments, versus substrates by 10 kg coniferous litter one, except pH values, registered significant higher contents of all chemical characteristics.
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