ISHS Acta Horticulturae 512: XXV International Horticultural Congress, Part 2: Mineral Nutrition and Grape and Wine Quality
EFFECTS OF ORGANIC WASTES ON OLIVE MINERAL NUTRITION AND ITS INFLUENCE ON FRUIT QUALITY. PRELIMINARY RESULTS FOR MACRONUTRIENTS |
| Authors: | E. Monge, J. Val, J.L. Espada, F. Orús, J. Betran |
| Keywords: | Olea europaea, fertilization, olive nutrition, olive quality, pig slurry and wastes |
| Abstract:
The effect of pig slurry fertilization on two olive (Olea europaea L. cv. Empeltre) groves has been studied for one season. The dosage of landsprayed slurry was 15 and 30 m3ha-1 for a non-irrigated olive grove, which was in a bearing year and 30 and 60 m3ha-1 for an irrigated grove in a non-bearing year. The macronutrient seasonal trend, both young (less than a year old) and old (older than one year), was studied from February until December. The evolution curves of the macronutrients from young and old leaves showed the same tendency, although the concentrations in young leaves were usually greater than old leaves, except for calcium. The macronutrient evolution curves of olive fruits have been also studied. The results showed that this kind of fertilization did not lead to significant increases in mineral leaf concentrations in this first year trial of slurry fertilization. | |
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