Abstract
THE seventeenth annual report (1931) of the Ches-hunt Experimental and Research Station contains a short account of a test with an automatic heating installation using oil fuel. A thermostat in the tomato greenhouse controls the action of a crude oil burner which gives heat to a special hot-water heating boiler. The account is quite short and the experiment incomplete, but the results show that an enhanced yield can be expected from the increased night temperature. Moreover, the fungus disease known as tomato leaf mould was kept in check by the higher temperature.
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