USDA Experment Station Record p. 557 (1905)
Experiments in electroculture in 1903

P. VAN BIERVLEIT (Rev. Gén. Agron. [Louvain], 18 (1904), No. 6, pp. 241-253).—A summary of the results obtained in England, Sweden, and Germany is given and the electrical installations used briefly described. Other articles upon this subject by the same author have been previously noted (E. S. R., 15, p. 248).

In experiments by Pringsheim, in Germany, the percentage increase in yield on plats under electrical influence was as follows: Strawberries 123 per cent, barley 32.5, potatoes 7.6, sugar beets 119.5, and garden beans 30.2. The soil conditions of the sugar beet plats were somewhat irregular. Carrots showed a reduction in yield, largely due to the fact that the plat was not watered.

In experiments conducted at Newcastle-upon-Tyne, an increase in yield is recorded in nearly every case for the plats provided with the electrical installation. Watering the plants proved beneficial in some instances and detrimental in others.

In the Swedish experiments the electrical influence apparently increased the yield of rye 19.5, of barley 40.1, and of oats 16 per cent. The plat of oats to which electricity was applied had imperfect drainage. The results with root crops show a small increase in yield for potatoes and sugar beets and a decrease for fodder beets and carrots, but unfavorable conditions interfered with this test.

Analyses which show that under the influence of electricity the sugar content of beets was increased and the quality of cereals improved are discussed and the analytical data given in tables.