THE FIRST SUPER HIGH-DENSITY ORCHARD IN WESTERN POLAND IS 15 YEARS OLD
The first super high-density orchard in Poland was planted in early spring of 1973 and the investigation was carried out till 1987. Azwellspur, Cortland, Delikates Goldspur, Jerseymac, Macspur, Nova Red Cortland, Red James Grieve, Starkrimson and Vista Bells cvs budded on MM.106 and M.26 rootstocks were tested.
In this paper the results for Azwellspur and Starkrimson budded on MM.106, are discussed.
The trees were planted at two spacings: 0.75 m × 1.50 m, in 5 row beds with 3 m paths between the beds giving 7300 trees per ha and 0.50 m × 1.00 m 7 rows bed giving 15 000 trees per ha.
The trees were sprayed each year with SADH.
Foliage application of SADH and heavy summer pruning strongly arrested the rate of tree growth. The older the trees the smaller the yearly increase in stem diameter. The trees started bearing in the second year after planting giving 3–6 t/ha and 40–50 t/ha was obtained in the fourth year after planting. The sprays with SADH, and low light penetration inside the crowns had a negative effect on the quality of the fruits. Therefore super high-density orchards should not have more than 7300 trees per ha. This type of orchard is especially suitable for home gardens and small farms.
Holubowicz, T. (1989). THE FIRST SUPER HIGH-DENSITY ORCHARD IN WESTERN POLAND IS 15 YEARS OLD. Acta Hortic. 243, 255-262
DOI: 10.17660/ActaHortic.1989.243.34
https://doi.org/10.17660/ActaHortic.1989.243.34
DOI: 10.17660/ActaHortic.1989.243.34
https://doi.org/10.17660/ActaHortic.1989.243.34