ISHS Acta Horticulturae 156: XII Working Party on Greenhouse Cucumbers
ATTEMPTS TO REGENERATE SUBSTRATES REPEATEDLY USED IN GROWING CUCUMBER UNDER GLASS |
| Authors: | T. Pudelski, D. Wójcik-Wojtkowiak |
| Abstract:
In a four year lasting experiment with cucumber growing in a black peat-pine bark-sawdust 1:2:1 bv. media, two regeneration methods have been employed: 1/ periodic dressing with hen droppings 2/ subsequent growing in summer/autumn of another vegetable, in 1978 and 1979 pole bean, in 1980 and 1981 sweet pepper. The phytotoxicity level in the substrate was controlled by means of a biotest. It was found that sweet pepper lowered phytotoxicity most effectively. None of the other treatments were effective. The use of hen droppings caused a hot fermentation, which favoured the accumulation of phytotoxic substances in substrate. | |
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