ISHS Acta Horticulturae 586: IV International Symposium on Olive Growing
OLIVE VEGETABLE WATER SPREADING AND SOIL FERTILIZATION |
| Authors: | L. Di Giovacchino, C. Basti, N. Costantini, G. Surricchio |
| Keywords: | olive vegetable water; olive vegetable water spreading. |
| Abstract:
Olive vegetable water (OVW) is the liquid by-product obtained from olive processing to extract virgin olive oil by mechanical means (pressure and centrifugation systems). Because of its high content of organic matter (5-20%), its purification is very difficult and for this it appears more interesting to utilize this by-product spreading it on cultivated soil, in agreement with Italian law. To verify the possibility to have an agronomic benefit, OVW was spread in high quantities on the soil cultivated with maize and grapevine. The results obtained indicate that the use of large quantities of OVW (more than 10 L/m2) helped to have 30-40% more total biomass than that obtained in the control and to avoid, or reduce, the use of chemical fertilizers. | |
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