ISHS Acta Horticulturae 221: Symposium on Horticultural Substrates and their Analysis
SLUDGE AND BARK COMPOST MIXED OR NOT WITH PEAT OR ROCKWOOL FOR THE CULTIVATION OF POTTED GERBERAS. |
| Author: | D. Pivot |
| Abstract:
Physical characteristics (air and water capacity) and fertility levels of sludge and softwood bark compost as a raw material are not well adapted to plant growth. Physicals properties have been improved with different rates of peat or absorbant rockwool mixed with the raw material. All mixtures have been fertilized before cultivation, following usual recommendations. Cultivation in raw material gives poor results in comparison with both mixtures containing 40% (by volume) of peat or 20% of rockwool, or with the control (mixture of 80% peat and 20% perlite). | |
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