lt of this culture applied to cereals was to increase the crop by
half.
The following experiment was also tried: Metallic plates sixty-five
centimeters by forty centimeters were placed in the soil. These plates
were alternately of zinc and copper and placed about thirty meters
apart, connected two and two, by a wire. The result was to increase
from twofold to fourfold the production of certain garden plants. Mr.
Fischer says that it is evidently proved that electricity aids in the
more complete breaking up of the soil constituents. Finally he says
that plants thus treated mature more quickly, are almost always
perfectly healthy, and are not affected with fungoid growth.
Later, N. Specnew, inspired by the results arrived at by his
predecessors, was led to investigate the influence of electricity on
plants in every stage of their development; the results of his
experiments were most satisfactory and of practical interest. He began
by submitting different seeds to the action of an electric current,
and found that their development was rendered more rapid and complete.
He experimented with the seeds of haricot beans, sunflowers, winter
and spring rye. Two lots, of twelve groups of one hundred and twenty
seeds each, were plunged into water until they swelled, and while wet
the seeds were introduced into long glass cylinders, open at both
ends. Copper disks were pressed against the seeds, the disks were
connected with the poles of an induction coil, the current was kept on
for one or two minutes and immediately afterward the seeds were sown.
The temperature was kept from 45 deg. to 50 deg. Fahrenheit, and the
experiments repeated four times. The following table shows the
results:
Peas. Beans. Barley. Sunflowers.
Days. Days. Days. Days.
Electrified seeds developed in 2.5 3 2 8.5
Non-electrified seeds developed in 4 6 5 15
It was also observed that the plants coming from electrified seeds
were better developed, their leaves were much larger and their color
brighter than in those plants growing from non-electrified seeds. The
current did not affect the yield.
At the Botanical Gardens at Kew, the following experiment was tried:
Large plates of zinc and copper (0.445 meter and 0.712 meter) were
placed in the soil and connected by wires, so arranged that the
current passed through the grou
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