The Influence of Varieties and Planting Systems on the Peach Tree Growth, Productivity and NPK Uptake
AbstractThe present study presents the effect of two organo-mineral fertilizers: root fertilizer C011 and foliar fertilizer 411 bio-ionic liquids,Â on some vegetative and productive features of five new peach [Prunus persica (L.) Batsch] varieties introduced in Romania: â€˜Earlirichâ€™,Â â€˜Royal Estateâ€™, â€˜Rubirichâ€™, â€˜October Starâ€™ and â€˜Late Lukaâ€™, grafted on GF 677 rootstock. The experimental plot located on a reddishÂ preluvosol, have been established in 2008 with four planting systems: Tatura trellis, V planting system, Sibari Y and Vertical axe withÂ different nutrition area/tree. Fertilization was applied on the beggining of June and August, 2010 and 2011 on the soil, locally on the treeÂ rows (C011) and by foliar spraying (411). Trees vegetative growth was compared at the end of the vegetation period by number of fruitÂ buds per unit trunk surface section (CM/TSS) with significant differences between types of crowns and the biggest values for â€˜Rubirichâ€™;Â the total shoots length with significant differences between varieties. The influence of fertilization on trees productivity was apreciatedÂ by analyzing the yield and some typical productivy indexes. The studied parameters including the NPK uptake, have been significantlyÂ influenced by the variety 3.39% Nt at â€˜Rubirichâ€™ in 2010 and 2.75% Nt at â€˜Rubirichâ€™ in 2011 in Tatura trellis planting system.
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