Abstract:
The cranberry fruits available for processing in Poland are derived mostly from wild growing plants of Vaccinium oxycoccus L. In the late fifties the very first plants of Vaccinium macrocarpon Ait. obtained from the USA were planted in the Sinoleka Field Experimental Station of the Research Institute of Pomology.
The site chosen for this planting was not proper, because pH of the soil was too high.
In 1963 the Research Institute of Pomology in cooperation with the Research Institute of Melioration and Green Crops established an experimental plot with plants of Vaccinium macrocarpon Ait. on the acid, peat soil in Rucianka near Elblag.
In the fourth year of growth a yield of 1 kg/m was obtained from the plantation.
The next cranberry plots were established in 1966 on the peat soil in Karwia near Puck by the Research Institute of Pomology.
A few years later the Department of Pomology of the Warsaw Agricultural University established a small plot of American Cranberry on mineral soil.
Also our Institute has planted a small collection of American cultivars of Vaccinium macrocarpon Ait.
Information gathered from all trials mentioned above has led us to the conclusion that our climatic and soil conditions are suitable for cranberry cultivation.
In 1976 the Research Institute of Pomology and Floriculture started to etsblish 10 ha of cranberry plantation on peat soil at Radacz near Szczecinek in the Northern Poland.
So far the plantation has an area of 4.5 ha and this year we plan to plant the next 5.5 ha.
The investigations of fertilization, weed control and cultivar evaluation are already in progress.
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