ISHS Acta Horticulturae 294: II Symposium on Horticultural Substrates and their Analysis, XXIII IHC
WASTE MATERIALS AS MEDIA FOR CONTAINER-GROWN PEACH AND OLIVE PLANTS. |
| Authors: | M. Tattini, S. Caselli, R. Tafani, M.L. Traversi |
| Abstract:
Self-rooted peach (Prunus persica, cv. Maybelle) and olive (Olea europaea L., cv. Leccino) plants were grown in 3.5 1 pots, using a drip fertigation system, for respectively 90 and 150 days. The plants were supplied with four nutrient solutions of increasing ionic strength: de-ionized water 4 – 8 and 16 meq/pot/week. The combined effect of the following substrates was evaluated: A) peat/sand 50/50; B) peat/sand/GS (compost obtained by mixing grape-stalks and urban sludge) 25/50/25; C) peat/sand/PB (compost obtained by mixing poplar bark and dairy sludge) 25/50/25. Peach and olive dry weights were significantly increased by replacing peat in the substrates; on the whole GS showed the best results. The effect of the tested waste materials was particularly relevant in the water treatment, but it also was maintained in all the fertilizing treatments. The use of the composted waste materials permits an important fertilizer saving and improve root/shoot ratio of both peach and olive plants. | |
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