Reaction of different varieties and rootstocks of peach (Prunus persica Stoc.) on NPK nutrients applying
2007
Prenkic, R.,Biotehnicki institut, Podgorica (Montenegro)
Investigations were carried out for the three peach varieties (Early Redheven, Koronet, and Samerset) and two rootstocks (vineyard peach and almond) with four fertilization treatment, four replication with the three trees in repetition. Distance of planting was 4 x 3 m (833 trees/ha). Experiment lasted three years. Location of orchard is in Ljeskopolje, Podgorica vinicity (Montenegro). Soil belong to gravely type of Mediterranean cambisol. The results revealed that the biggest fruitfulness and mass of peach product was obtained in fertilization with 225 kg/ha of N, 90 kg/ha of P and 210 kg/ha of K, and the best quality and the most economic production with the dose of 150 kg/ha of N, 60 kg/ha of P and 140 kg/ha of K. The largest amount of nitrogen was found in the leaf of peach (from 2.38% in non fertilized repetition to 3.28% in repetition with the largest dose of fertilizer). Percentage of found nitrogen was higher than percentages of potassium (from 1.07% to 2.5%), phosphorus, iron and zinc. Foil analyses can very reliably reveal the supply of peach, especially with nitrogen and potassium. Beds had more influences on rapid growth, fruitfulness and quality of peach than the investigated varieties.
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