General principles of mother plantation of fruit bushes

In order to produce a large number of shrubs and seedlings every year, it is necessary to establish special mother plantations – nurseries. Plants intended for establishing mother plantations should be free from the most dangerous fungal diseases, bacterial and viral and pest and come from elite plantations, specially established for this purpose and qualified annually by competent committees, One fruiting shoot is left on the mother plots of gooseberries and currants to confirm varietal purity.
The nurseries of fruit bushes should be established in fertile soils, moderately firm and with high water capacity. The method of soil preparation and fertilization for nurseries of fruit bushes is the same, as ood mother plantations of vegetative rootstocks.
Mother plants of gooseberries and currants are planted in rows arranged at intervals 2,0-3,0 m, and in a row, depending on the method, at distances from 1,5 do 2,0 m. Odstępy między rzędami powinny zależeć od szerokości roboczej narzędzi używanych do uprawy gleby w międzyrzędziach.
Bushes planted in fall are short-cut in spring, leaving on each shoot 2-3 mesh. Shrubs pruned in this way produce from a few to a dozen or so shoots in the following years. A well-kept queen cell can be exploited by 8-12 lat. During the period of use, mother plantations should be fertilized annually with nitrogen 80-120 kg of pure ingredient per 1 ha, potash 60-100 kg / ha and phosphorus 40-60 kg / ha. In currant and gooseberry plantations, potassium should be used in the form of potassium sulfate, because these plants do not tolerate the chlorine contained in the potassium salt. Very good results are also obtained by fertilizing the nurseries with manure every three years, in an amount 30-40 t / ha.