Pearl EITAN, et al.
100 lb magnetite ( Fe3O4, 100-mesh or smaller ) / acre with
applied electrostatic charge frpm 440-V DC electromagnetic
coil : resistivity to subfreezing temperatures &
insects, increased fruit size, yield, growth rates,
increased number of crops/year.
Cited documents: FR2355441 //
FR649730 // FR734980
Abstract -- Device for electroculture with minimum two metal
grates or plates (2, 3) arranged in parallel in the cultivated
soil (4), in a north-south direction, and with a voltage source
(6) with an antenna (7) and that supplies the metal grates (2,
3) with an electric current of natural origin, device for
electroculture characterized in that the aforesaid voltage
source (6) consists, on one hand, of the antenna (7) for
collecting atmospheric electricity and, on the other hand, of
one or several photocells (8).
The invention relates to an apparatus of electroculture comprising
at least two grids or panels in parallel laid out in the ground of
culture according to a North-South direction, and a voltage source
providing an electrical current of natural origin to the metallic
Several apparatuses are known for the use of the beneficial effect
of the electricity on the vegetation, which is known of long date.
Indeed, it was noted that the electricity could have a powerful
action on the rise of the sap in the plants, and consequently, on
the quick and spectacular development of those.
Numerous apparatuses were already proposed to subject plantings to
the influence of the electricity, mainly with the level of the
roots. The purpose of these known apparatuses consists to collect
electricity preferably natural, such as the atmospheric
electricity and to channel it towards the roots in the form of
electrical current. Thus, according to one of these known
apparatuses, a seven antenna to eight metres of high is placed
vertically in the ground and is surmounted, on the one hand, by a
whole of stems in galvanized iron wire and, on the other hand, by
a whole of brass or copper tubes. Each one of these sets of iron
elements galvanized or out of copper is connected separately to a
conducting wire which goes down along the vertical antenna. Each
of two wire is then buried in the ground with one depth of about
fifty centimetres, and this in the shape of coiled web, in order
to define a couple copper-iron. Thus, the spiral obtained is used
as traprock with the tension fields of the magnetic field, and it
is established a D.C. current on the spiral, which makes it
possible to activate the growth of the plants located above the
This apparatus has the disadvantage of being relatively expensive,
and application moreover a performing particularly neat comprising
numerous insulations and welds. Moreover, it requires an antenna
large height particularly unaesthetic but especially, the results
obtained with the level of the plantings are of a large
irregularity and are substantially tributary distribution of the
electric voltages in the basement.
One knows another apparatus of electroculture also based on the
collection of the atmospheric currents, and composed of a provided
metallic antenna of copper strands to his upper part. This antenna
is isolated earth via an insulator, but is connected to a
galvanized iron grid placed vertically in the ground. Compared to
this galvanized iron grid, laid out according to a North-South
direction, one anode screen identical but connected only to the
earth is placed. In this way, the atmospheric currents collected
by the antenna are transmitted to the quoted first grid, and it is
established between the two grids an electric field which ends in
the circulation of low running in the part of the ground which
separates the two grids, this current benefitting the growth from
vegetal placed on its passage.
However, this apparatus is partly characterized by its
inefficiency, resultant low current levels and of tension
observed, as well as variations of those.
Whereas the aforementioned apparatuses of electroculture are based
on the use of the atmospheric electricity, which is free, other
apparatuses consist in feeding directly from the grids placed in
the ground via electric generators such as stacks or others, which
considerably increases the cost of use of these apparatuses.
Lastly, certain performings are based on a juxtaposition of strips
of compost acids and basic laid out alternately in the ground, in
order to generate electrical currents crossing the plat bands. It
is clear that it is there about an electric power of a more
expensive use and that it is periodically necessary to renew.
The purpose of the present invention is curing these
disadvantages. The invention, such as it is characterized in the
claims, solve the problem consisting to create an apparatus of
electroculture comprising at least two grids or panels in parallel
laid out in the ground of culture according to a North-South
direction and a source of ten Sion providing an electrical current
of natural origin to the metallic grids and of which the voltage
source is composed, on the one hand, of an antenna of collecting
of the atmospheric electricity and, on the other hand, of one or
several cells photovoltaic.
The advantages obtained thanks to this invention consist
substantially of what in consequence of the presence of the
photovoltaic cells and a regulator, the apparatus of
electroculture makes it possible to have same the night an
available electric voltage on the positive grid metallic, which
increases the profitability of the apparatus.
Another purpose of the present invention is to propose an
embodiment practice, simple and effective of apparatuses of
electroculture, while being based on an electrical energy source
Another purpose of the present invention is to provide an
extremely economic apparatus of electroculture, and which makes it
possible to make circulate in the flat-strips of culture, a
relatively substantial D.C. current compared to those obtained by
the known apparatuses in the current state of the technical one.
The invention is hereafter exposed more in detail using drawings
representing only one embodiment.
with the invention represents a perspective view of the whole of
the apparatus of electroculture.
is a plan view of
the antenna of the apparatus as represented figure 1.
is a scheme of
principle of the regulator represented in the apparatus of figure
One refers on figure 1.
The apparatus of electroculture 1 in accordance with the invention
is composed mainly of two metallic grids 2 and 3d' a height from
thirty to fifty centimetres in parallel laid out in the ground of
culture, in order to laterally delimit a plat band of culture 4
intended for the planting and the culture vegetal unspecified 5.
The metallic grids 2 and 3, preferably out of galvanized iron, are
intended in a known way, to be spans with a relative electrical
potential in order to make circulate between they an electrical
current limited by the earth strength of plat band 4. Of course,
the metallic grids 2 and 3 can be replaced by full metal patches
ensuring the same function.
It is substantial to note that the metallic grids 2 and 3, hidden
in the ground, are directed according to a North-South direction,
in order to make profit the electrical charges in movement between
the two grids, of the influence of the terrestrial magnetic field.
The apparatus of electroculture 1 in accordance with the invention
comprises moreover a voltage source 6 connected electrically to
grids 2 and 3, the first playing the role of a positive pole, the
second playing the role of a negative pole.
For this purpose, the voltage source 6 which provides an
electrical current of natural origin to the metallic grids 2 and
3, is composed, on the one hand, of an antenna 7 making it
possible to collect the atmospheric electricity and, on the other
hand, of one or several cells photovoltaic 8 as represented figure
Antenna 7 is intended to collect the present electricity in the
atmosphere in the form of ions, especially by thundery weather.
For this purpose, it is composed of a conductive tube 9 out of
electric aluminium or other good conducting, surmounted by strands
of wire of copper or equivalent, laid out in “sunshade” as
schematized on figures 1 and 2. These strands of copper 10 wire,
necessarily of odd number, are attached on the apex of conductive
tube 9 by an unspecified connection ensuring a good electric
continuity, and are distributed according to a cone in order to
present a slope to the top 11 from fifteen to thirty degrees.
Moreover, conductive tube 9 of antenna 7 is attached on one
isolated tor made up for example by a wood 12 stake driven in the
ground, the whole of antenna 7 being installed near the metallic
grids 2 and 3 in order to shorten electric connections necessary.
It is to be noted that point of view of the dimensioning of this
antenna, several performings with the span of the Expert are
possible. It proves nevertheless that an antenna 7 made up of a
conductive tube 9 of two metres high and copper strands of about
thirty centimetres long and of a diameter from 2,5 to 3
millimeters are optimum.
It is clear that antenna 7 collecting the atmospheric electricity
constitutes in itself a voltage source, the aforementioned tension
being able to be taken in an unspecified point of tube 9. However,
this tension is substantially variable and fluctuating with the
rhythm of the variations of the atmospheric conditions, and its
application with the one of the metallic grids 2 or 3 does not
give good results with regard to the growth from vegetal the 5.
Also, in accordance with the invention, voltage source 6 is
composed moreover of one or several photovoltaic cells 8 producing
a continuous tension starting from the received light energy by
the sun, the respective voltages from antenna 7 and from
photovoltaic cells 8 being brought on the metallic grid 2 playing
the role of positive pole, via a regulator 13.
This regulator 13 comprises two inlets 14 and 15 and one outlet
16. To ensure the operation of the apparatus of electroculture as
described previously, the inlet 14 of regulator 13 takes the
electric voltage produced by antenna 7 with the level of an
unspecified point 17 of tube 9 of this one. In addition, the
positive voltage produced by the photovoltaic cell 8 is taken with
the level of positive terminal 18 of this one and is brought on
inlet 15 of the regulator via an isolated electric wire 19.
Of course, so that a current can circulate in direction 20
represented on figure 1, it is necessary that outlet 16 of
regulator 13 is connected to the metallic grid 2 playing the role
of positive pole, and that moreover negative terminal 21 of the
photovoltaic cell 8 is connected by an electric wire isolated 22
to the metallic grid 3 playing the role of negative pole of the
apparatus. Thus, the metallic grid 2 being span with a positive
electrical potential compared to the earth, and the metallic grid
3 being intimately connected to the earth via an earth 23 stake,
an electrical current can be established between two grids 2 and 3
in direction 20 represented.
In accordance with the invention, the improved results of
electroculture are obtained when the metallic grid 2 is supplied
by a continuous tension of about 0,2 to 0,4 volts. Regulator 13 in
conformity with the invention makes it possible to obtain such a
tension starting from the elementary voltage sources consisted by
antenna 7 on the one hand, and the photovoltaic cell 8 on the
For this purpose, regulator 13 schematized figure 3 comprises a
stage rectifier 24 with low losses intended to manufacture a
continuous tension from 0,2 to 0,4 volts to be left, on the one
hand, fluctuating tension delivered by antenna 7, and on the other
hand, of the substantially continuous tension delivered by the
photovoltaic cell 8. So the stage rectifier 24 is consisted two
groups 25 and 26 of diodes 27 laid out into parallel, and located
respectively between each inlet 14 and 15 and outlet 16 of
It is to be noted that the tensions delivered by antenna 7 and the
photovoltaic cells 8 are relatively low values, and so it is
necessary to limit the voltage drops inside regulator 13 to their
simpler expression. Also, diodes 27 are they preferably
constituted by diodes “signal” with germanium, with low losses. It
is also remarkable that the provision of two or several diodes 27
into parallel between an inlet 14 or 15 and outlet 16 of regulator
13 makes it possible to limit the equivalent strength of each
whole of diodes into parallel, and consequently to limit the
In order to return the whole of voltage source 6 as compact as
possible, the photovoltaic cell 8 can be judiciously placed at the
apex of tube 9 of antenna 7 as represented on figures 1 and 2.
Of course, the spacing of the metallic grids 2 and 3 depends on
the strength of the ground in the region of culture, and the
number and the dimension of the metallic grids 2 and 3, as well as
the number of photovoltaic cells 8 and antennas 7 necessary by
surface of culture are entirely with the span of the Expert.
Among the advantages of the apparatus of electroculture describes
previously, one can notice that the presence of the photovoltaic
cells 8 as of regulator 13 allow to have always an available
electric voltage on the grid metallic positive 2, same if for a
reason or another one of the two voltage sources remainder dumb
woman, which is the case each night for the photovoltaic cell 8.
In addition, the apparatus of electroculture in conformity with
the invention is very simple and compact all into giving
spectacular results, and makes it possible to put a profitable and
effective electroculture at the service of any gardener, who will
be able, so to do without chemical manures.