ISHS Acta Horticulturae 82: Symposium on Production of Protected Crops in Peat and other Media
STUDIES ON A CULTIVATION SYSTEM USING CAPILLARY IRRIGATION IN SHALLOW ORGANIC SUBSTRATES |
| Author: | P.R. Thoday |
| Abstract:
A table-top planter for the disabled required an organic compost 5 cm deep capable of supporting many crops. Tests to determine the most suitable sub-irrigation and drainage systems resulted in a review of the water relationships found in shallow profile containers. This paper discusses the role of the composition, height and cross sectional area of capillary wicks on their capability to deliver water to the base of a substrate. Both the rate and total amount of sub-irrigation water delivered is noted. Sub-irrigation and drainage water retention and movement in organic composts is discussed and the different air, water, solid ratios found at different horizons are noted. A description of the table-top planter is given detailing its irrigation controller; this equipment has some application in husbandry research into substrate/crop behaviour. | |
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