The influence of fertilization to vegetative growth of the lowbush blueberry (Vaccinium angustifolium Ait.) in a young and cropping plantation in peat bog
2001
Noormets, M. | Karp, K. (Estonian Agricultural Univ., Tartu (Estonia).Dept. of Horticulture)
There are 3 000 hectares of peat bogs in Estonia formerly used in peat production. Among those peat bogs, 2 000 ha have the potential to be used in the cultivation of wild berries. Due to the high pH sub(KCl) volume of 1.8-4.5 acid-lowing Ericaceous should be investigated as possible candidates for cultivation because they are stress tolerating. A study was initiated to assess the effect of different fertilizer combinations on the lowbush blueberry vegetative growth and winter hardiness. The experiments were conducted during 1999 and 2000 with 7-year old plants and 2-year old plants, growing on a private peat bog in the county of Tartu. Two main complete fertilizers were used for this- N0, P12, K18 and N10, P20, K20 + micro elements, also adding a foliar-applied fertilizer N15.5, P0, K0 influence was examined. The fertilizers were applied in early spring with three different rates: 126 kg/ha, 252 kg/ha and 304 kg/ha; leaf- fertilizer was applied in early summer, a 0.05 per cent solution. During the experiments the positive influence of fertilizers on vegetative growth on lowbush blueberry plants was examined. The growth continuation was examined as well, but no significant cold damage was registered. Therefore, the results from these experiments indicate that the vegetative growth was positively affected and increased by fertilizers and the growth in fall was completed before winter
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