Nutrient Availability in the Soil and Its Absorption,Transport, and Redistribution in Vines |
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| Abstract: | Abstract This study was to determine the concentration, accumulation, redistribution, and export of nutrients by Rubi grape. Ten branches with leaves and fruit were collected; the vegetable matter (stem, leaf, and fruit) was washed, dried, weighed, and analyzed so as to determine the concentration of nutrients in the plant. The nutrients most absorbed were nitrogen (N), potassium (K), and calcium (Ca), and the best absorption time started after the berry ripening. Phosphorus (P), magnesium (Mg), and sulfur (S) were less demanded by the grape although they had the same behavior in relation to the period of greater absorption. The best absorbed nutrient was manganese (Mn), and its absorption increased gradually and steadily, according to the plant growing phases. The absorption of copper (Cu), zinc (Zn), and boron (B) was minimal up to the ripening of berries, but increased from then on. The greatest absorption and accumulation of nutrients occurred during the ripening of the fruits. The leaves had greater absorption of Ca, Mg, S, Mn, and Cu, whereas the fruit absorbed more K (61%), P (56%), N (38%), and B (56%). The stem presented similarly in the proportion of all macronutrients, and it accumulated more Zn. |
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| Keywords: | Grape nutritional demand nutrient export |
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