ISHS Acta Horticulturae 178: Symposium on Nutrition, Growing Techniques and Plant Substrates
ROSES GROWN IN ROCKWOOL BLOCKS |
| Author: | O. Bøvre |
| Abstract:
The world's first experiment with blocks of mineralwool as growing medium for horticultural purpose started at Hornum in spring 1969. The purpose was to have a growing medium which did not decompose, and to find the best density of the blocks. Blocks of different density, varying from 40 to 200 kg/m3 measuring 15x15x15 cm, approximately 3,4 litre were set up in a trail. The best result was obtained in 80 kg/m3 blocks. | |
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