Effect of spray by Urea and Zinc sulphat on growth and production of Plum cultivar " Jubileum" .
Abstract
The research was conducted in 2019 in the village of Bahlolia, in the province of Lattakia, on a plum ,grove size (4) acres, prunus domestica,cv jubileum, age of trees is (12) years, the range between trees is(4*4) m, trees is grafted on Prunus cerasia blanche , the study concluded the following:
Treating trees with zinc sulfate( 0,5%) and urea(0,5%) jointly led to an increase weight , size and hardness of the fruits(5,91 kg\cm2) and reduce the fruit fallout, as well as reducing acidity(0,981 %) and increasing the ratio of soluble solids and percentage of total sugars and vitamin C as it led to an increase in the percentage of chlorophyll a ,b in the leaves, it also increased the total tree production (38,32 kg).
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