THE electrical heating of the soil around plants, so as to hasten their growth, has been used successfully in California. The purpose of the particular experiment was to put the product on the market earlier than usual, while the price was several times higher than in the ordinary season when all crops mature and there is an overabundance.
Two exactly similar plots of ground were taken. One had insulated wires running through it about four feet apart and about eight inches below the surface. The current in the wires was regulated by a thermostat so as to maintain a temperature of about
seventy degrees Fahrenheit, and the current flowed on an average of about two hours in every five. The other plot was not electrically heated, but was otherwise prepared in a similar way. Cucumber seeds were planted in both areas, in rows about four feet apart.
It was found that more than one-half of the crop in the wired section had ripened and had been marketed before the first cucumber in the unheated plot had reached maturity. The net revenue obtained from the electrified plot was about §100 greater than that received from the other.—Popular Science.
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