ISHS Acta Horticulturae 356: II International Symposium on Olive Growing
EFFECT OF FERTILIZATION ON THE LEAF MACRONUTRIENT CONCENTRATIONS OF OLIVE TREE |
| Authors: | P.V. Jordão, J.C.S. Dias, F. Calouro, M.L. Duarte |
| Keywords: | olive grove, cv.Galega, seasonal trend |
| DOI: | 10.17660/ActaHortic.1994.356.42 |
| Abstract:
A fertilizer subtractive trial was established in an olive grove, cv. Galega, installed on a Calcaric Cambisol, in the Portuguese Region of Ribatejo. During four years N, P, K and Mg were annually applied to the soil, as well as Fe, Mn, Zn, Cu, B and Mo applied by foliar spraying. The macronutrient seasonal trend, both in trees with and without fertilization, was studied from full blossom to 310 days after. Fertilization leads to a significant leaf-N increase both in bearing and non-bearing years as well as a leaf-K decrease in bearing ones. In non bearing years the concentrations of leaf-N, P and K were higher along the season, whereas leaf-Ca and Mg seasonal trends were different in bearing years as compared with non-bearing. | |
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