ISHS Acta Horticulturae 238: Symposium on Substrates in Horticulture other than Soils in situ
EFFECT OF BARK ADDITION TO MOSS PEAT ON PLANT GROWTH |
| Author: | J.C. Kelly |
| Abstract:
Macerated tree bark from both deciduous and evergreen species is now widely used as an additive to moss peat in the preparation of composts. Its special physical characteristics result in improved drainage and openess of compost. There is little discernible shrinkage after a growing season when hardy ornamental plants are cultivated in containers filled with peat/bark blends. The chemical status of bark depends on the tree species from which it derives. Sitka spruce (Picea sitchensis) can contain high levels of manganese, and leguminous plant species which are cultivated in composts containing bark from this species can display severe chlorosis. | |
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