ISHS Acta Horticulturae 294: II Symposium on Horticultural Substrates and their Analysis, XXIII IHC
SEDGE PEAT MIXED WITH ROCKWOOL AND SPHAGNUM PEAT AS GROWTH MEDIUM FOR POT PLANTS |
| Author: | J.B. Nørgaard |
| Abstract:
These experiments were developed to examine the potential use of sedge peat mixed with rockwool and sphagnum peat as a potting medium for greenhouse production of flowering and foliage plants. Three separate growth trials were undertaken with the species: Tagetes patula, Coleus blumei and Syngonium podophyllum. A strongly decomposed ( H7 - H8 on the von Post scale ) sedge peat was used. The design of the trial was 2x2x2 factorial with 10 replications. All treatments included 20 % by volume waterabsorbent rockwool granulate, fine grade. As control a commercial fertilized sphagnum peat ("ASB") was used. The main effects were: mixtures with sphagnum peat and slow-release fertilizer gave the highest dry weight yield in all the 3 species used. The control was in all trials in the best group and in a few cases was significantly better than the other treatments. | |
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