EP3541180A1 - Élément herbicide multicouche et procédé d'utilisation d'un tel élément herbicide - Google Patents

Élément herbicide multicouche et procédé d'utilisation d'un tel élément herbicide

Info

Publication number
EP3541180A1
EP3541180A1 EP17798201.4A EP17798201A EP3541180A1 EP 3541180 A1 EP3541180 A1 EP 3541180A1 EP 17798201 A EP17798201 A EP 17798201A EP 3541180 A1 EP3541180 A1 EP 3541180A1
Authority
EP
European Patent Office
Prior art keywords
layer
herbicidal
layered
carrier layer
cover layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17798201.4A
Other languages
German (de)
English (en)
Inventor
Freddy Elsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3541180A1 publication Critical patent/EP3541180A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
    • A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity

Definitions

  • the invention relates to a multi-layer herbicidal element that can be used in agriculture, gardening and landscaping and on paving drones, yards, paths, terraces and the like for environmentally friendly and sustainable weed control.
  • the invention further relates to a method for processing and preparing the soil, in particular in landscaping and horticulture and in agriculture and applying a multi-layer herbicide.
  • DE 24 50 1 14 C2 describes e.g. transparent plastic films in the form of film webs for covering plant crops.
  • a multilayer herbicidal element which has at least two layers spaced apart by spacer elements and / or partitions, namely a cover layer and a carrier layer, wherein at least one air chamber is formed between the cover layer and the carrier layer the cover layer has a high light transmittance and the carrier layer has a high light absorption capacity, and thus the light energy received by the carrier layer is converted into thermal energy.
  • the multi-layered herbicidal element can also be referred to as a herbicidal solar element or as a weed control element.
  • the invention is based on purely physical weed control in which radiant energy, which is essentially due to the sun, into thermal energy is converted to heat the soil and so fight weeds.
  • the invention is thus free from any chemically active substances, in particular herbicides.
  • An advantageous reinforcement of said active principle is achieved in that at least one intermediate layer is arranged at a distance between the cover layer and the carrier layer, with which at least two separate air chambers can be formed.
  • This embodiment of the multilayer herbicide or herbicidal solar film is particularly suitable for use in areas of low solar radiation.
  • a soil warming of significantly above 90 ° C. at the earth's surface is achieved, whereby a considerable warming of the soil was measured to a depth of two to three decimetres.
  • the proteins that contain the plant parts, especially the cell walls destroyed. Further growth of the plants or weeds is thus prevented, the plant or the weed dies.
  • the spacer elements between the individual layers are elastic, preferably resilient and / or compressible, in particular designed as spiral, screw or sheet-shaped plastic spring elements.
  • the spacer elements are separate from the carrier layer and separate from the top layer.
  • the spacer elements cause the carrier layer and the cover layer do not contact.
  • Contact points between the carrier layer and the cover layer can represent weak points of the multilayer herbicide element according to the invention, since contacting carrier and cover layers require a lower thermal insulation capacity than can be achieved with an insulating air layer between the carrier layer and cover layer.
  • the spacers preferably cause the distances between the carrier and the cover layer in the operating state of the herbicide as little as possible to to form a large-volume air chamber.
  • the distribution of the distances between carrier foil and cover foil in the operating state of the herbicide element has a standard deviation s, which is advantageously less than 50%, more advantageously less than 40%, even more advantageously less than 30%, particularly advantageously less than 20% and ideally less than 10%. as the mean value of the distances.
  • Spacers may be provided in preferred embodiments between more than just the topsheet and the backsheet to guarantee a desired spacing between each pair of films and to increase the thermal insulation of the herbicide element.
  • the spacer elements are designed as vertical partitions for the purpose of forming a plurality of partial air chambers, wherein the vertical
  • Each partition walls may have a cavity which is preferably filled via a valve, with a fluid under slight pressure.
  • Under light pressure here is an overpressure of 0.03 to 0.5 bar at 20 ° C to understand, taking into account the selected film quality.
  • the carrier layer of the multilayer herbicide has a dark, especially black top and is at least partially metallic, for example as a metal foil, or polymer, for example, as a thermally conductive plastic film formed.
  • the underside of the carrier layer preferably has good heat dissipation and / or heat radiation properties.
  • the carrier layer for protection against pointed and / or sharp-edged objects on the ground surface, e.g. sharp-edged stones, a tissue structure and / or a tissue component.
  • the cover layer has in its upper, outwardly directed layer a multiplicity of integrated optical lenses or is correspondingly shaped like a lens, for example by embossing.
  • An advantageous development of the multilayer herbicide element or herbicidal solar element is characterized in that the cover layer and / or the intermediate layer underside a heat radiation reflecting layer or have to have to reduce unwanted heat loss by thermal radiation.
  • the top layer and the intermediate layer of a transparent plastic which has a high temperature resistance
  • the plastic in particular a thermoplastic from the group ethylene-propylene copolymer (EPM), ethylene-propylene Diene rubber (EPDM), ethylene tetrafluoroethylene (ETFE), fluorinated ethylene propylene (FEP), perfluoroalkoxy polymers (PFA), polyetherimide (PEI), polyhydroxyalkanoates (PHA), polyhydroxybutyrate PHB, polyimides (PI) or polysulfone (PSU )
  • EPM ethylene-propylene copolymer
  • EPDM ethylene-propylene Diene rubber
  • ETFE ethylene tetrafluoroethylene
  • FEP fluorinated ethylene propylene
  • PFA perfluoroalkoxy polymers
  • PEI polyetherimide
  • PHA polyhydroxyalkanoates
  • PHB polyhydroxybutyrate PHB
  • PI polyimides
  • PSU polysul
  • a particularly advantageous property of the multilayer herbicide element according to the invention is that the cover layer, the intermediate layer and the carrier layer as well as the respectively enclosed space, namely the air chambers and the cavities, are free from chemically acting herbicides and / or pesticides.
  • the multilayer herbicidal element is particularly preferably a multilayer herbicidal film, wherein the cover layer is a cover film, the carrier layer is a carrier film and optionally the intermediate layer is an intermediate film.
  • the herbicidal film is advantageously elastic and flexible, so that it is rollable and compressible as a film web and thus to handle after production and / or after use as easy to handle role and to save space.
  • rigid or solid herbicidal elements for example made of plastic or glass, in particular in the form of plates or panels. From a conventional solar element, this embodiment differs by omitting the absorber in the element, according to the invention, the soil forms the absorber.
  • the carrier layer or carrier film preferably has a thickness of between 0.015 mm and 1.5 mm. In particular, it has a high tensile strength with rather low elasticity.
  • the cover layer and / or the intermediate layer (s) preferably have a thickness which amounts to 20% to 80% of the thickness of the carrier layer. Thus, the material thickness or thickness of the cover layer and / or the intermediate layer is preferably in a range between 0.01 mm and 1, 0 mm.
  • the top layer preferably has a lower compared to the carrier layer Tensile strength, wherein their extensibility and / or their bending elasticity are preferably greater than that of the carrier layer.
  • the multilayer herbicidal element is adapted to cause a heating of at least 20 ° C an outer side of the carrier layer relative to an outer side of the cover.
  • the heating is at least 30 ° C, more preferably at least 40 ° C and most preferably at least 50 ° C.
  • the outside of the carrier layer is the side of the carrier layer facing the ground and the outside of the cover layer is the side of the cover layer facing away from the ground.
  • the temperature difference is caused according to the invention by the multi-layered herbicidal element in combination with heat energy resulting from solar radiation.
  • the topsheet at a temperature of 27 ° C and the support layer has a temperature of at least 47 ° C, preferably at least 57 ° C, preferably at least 67 ° C and more preferably of at least 77 ° C to particularly effective weed control to enable.
  • the object is also achieved by a method for applying a multi-layer herbicidal element, preferably in the form of a multi-layer film web, for thermal weed control in horticulture and landscaping and in agriculture with the following steps:
  • a suitable tillage equipment e.g. a plow, cultivator or disc harrow
  • the heated carrier layer continuously dissipates the heat energy to the ground, so that the soil underneath is continuously heated. After a few hours, a steady-state temperature sets in which, on sunny days and especially on cloudy days, may well amount to 100 ° C or more. More than 47 degrees of heat leads to denaturation of vegetable protein and the plant dies. Even at temperatures around 60 ° C, the first types of bacteria and fungi are killed. From about 90 ° C beyond certain types of viruses are destroyed. Decisive is always the duration of the effect of temperature. The effectiveness also depends on the soil moisture and soil pH. In addition to the simple yet gentle application, the invention offers the further advantage that many weeds completely die off in the process, since the roots are also destroyed depending on the depth effect and the seeds. As a result, the thermal weed killing achieves a long-term effect, with no additional energy supply, such as e.g. when burning, is required.
  • the method for thermal weed control perform with an additional step, namely profiling the soil by forming transverse grooves by means of a suitable concave-shaped roller before the multi-lane furrows.
  • a smooth surface can be produced, on the one hand protects the carrier layer from damage and on the other hand allows a good heat transfer.
  • the multi-lane furrows of the soil can be omitted in order to ensure direct and full-surface heat input into the soil or soil.
  • a layer of biodegradable insulating material for example in the form of chopped straw, is applied to the plow bottom and subsequently covered with soil.
  • the biodegradable insulating material forms an insulating layer and thus reduces unwanted Heat radiation into deeper ground areas, or in other words, the heat remains longer in the topsoil, which is particularly advantageous in the absence of sunlight.
  • FIG. 1 shows a cross-sectional view of the multilayer herbicide element according to the invention in a first embodiment
  • FIG. 2 shows a cross-sectional view of the multilayer herbicide element according to the invention in a second embodiment
  • FIG. 3 a cross-sectional view of the multilayer herbicidal element according to the invention in a third embodiment
  • FIG. 4 shows a cross-sectional view of an edge region of the multilayer herbicide element from FIGS.
  • Figure 5 a view of a tillage machine.
  • FIG. 1 shows in a cross-sectional view a multilayer herbicidal film 1 according to the invention in a first embodiment, which clearly shows the multi-layered structure.
  • an air chamber 0, 11 is enclosed in each case.
  • the carrier film 4 rests on the smoothed and planar surface of the ground floor 30 without gaps. If light rays 20 now strike the black surface of the carrier film 4 through the cover layer 2 and the intermediate film 3, the carrier film 4 absorbs the light rays 20, wherein the energy absorbed by radiation is converted into thermal energy.
  • the air in the air chambers 10, 1 warms 1. This process continues until a steady temperature has set, which may well be 100 ° C and more on sunny days.
  • the heated carrier film 4 gives a part of the heat energy directly to the ground 30, so that the soil underneath is continuously heated.
  • helical plastic spring elements or, in the lower air chamber 11, helical plastic spring elements or short helical springs are provided in the upper air chamber 10, wherein the spring force of the helical springs is greater than that of the helical springs.
  • the multilayer herbicidal element 1, 2, 22 is adapted to cause a heating of at least 20 ° C an outer side 400 of the support layer 4 relative to an outer side 200 of the cover layer 2.
  • the outer side 400 of the carrier layer 4 is the side of the carrier layer 4 facing the ground 30, and the outer side 200 of the cover layer 2 is the side of the cover layer 2 facing away from the ground.
  • the outer side 400 of the carrier layer 4 is thus adapted to make contact with the ground 30 to warm it up.
  • the outer surface 200 of the topsheet 2 is typically directed upward, toward the sky and away from the ground 30, to allow for solar radiation.
  • the outsides 200, 400 may be referred to as the outsides 200, 400 of the multilayer herbicidal element 1, 21, 22.
  • FIG. 2 shows a multilayer herbicidal film 21 according to the invention in a second embodiment.
  • This second embodiment of a multi-layer herbicidal film 21 differs from the first embodiment in the formation of the lower air chamber 1 1.
  • the lower air chamber 11 is divided by a plurality of partitions 7 in a plurality of parallel partial air chambers 11 a, 1 1 b, 11 c.
  • the formation of the partition 7 with the cavity 8 could also be used as a hose describe.
  • this second embodiment of a multi-layer herbicidal film 21 differs also in that the spacer elements 5, 6 are formed in the upper air chamber 10 as coil springs. At this point it should be noted that the upper air chamber 10 would also be divisible by partitions in partial air chambers.
  • FIG. 3 shows a multilayer herbicidal film 22 according to the invention in a third embodiment, again in a cross-sectional view.
  • This third embodiment differs from the first embodiment on the one in the formation of the lower air chamber 11, wherein the lower air chamber 11 is divided by relatively fixed partitions 9 in this embodiment in a plurality of parallel partial air chambers 11d, 11e, 11f.
  • the partitions 9 are articulated there, hingedly connected, so to speak, with the intermediate foil 3 and the carrier foil 4, so that they are rolled up when the multilayer is rolled up
  • the cover film 2 has a plurality of optical lenses 12 on the upper side, which ensure a higher luminous efficiency, since the reflection on the surface is markedly reduced and a larger proportion of the light beams is conducted into the multilayer film.
  • FIG. 4 shows an edge region of the multilayer herbicidal film 1 according to the invention in the first embodiment as shown in FIG. 1, namely a first upper air chamber enclosed by the transparent cover film 2 and the transparent intermediate film 3
  • the lower air chamber 11 has a compressed air supply 14 for filling the lower air chamber 11 with compressed air.
  • the above arranged upper air chamber 10 is closed in the illustrated edge region of the film web by gluing or welding.
  • a valve also not shown
  • FIG. 5 shows a rear view of a soil working machine 31 exemplified here nine spur wheels 32 which produce nine triangular grooves 33 in the ground 30 in the embodiment, which have smooth edges and the earth's surface, on which the heat can act below the film web, increase accordingly ,

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Protection Of Plants (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un élément herbicide multicouche pouvant être utilisé dans l'agriculture, l'horticulture et l'aménagement du paysage ainsi que sur des pavages d'entrées, de cours, de chemins, de terrasses et similaires pour la lutte écologique et durable contre les mauvaises herbes. L'invention concerne également un procédé de traitement et de préparation du sol, notamment dans l'aménagement du paysage et l'horticulture ainsi que dans l'agriculture, et d'application d'un élément herbicide multicouche sur le sol traité au préalable.
EP17798201.4A 2016-11-15 2017-11-15 Élément herbicide multicouche et procédé d'utilisation d'un tel élément herbicide Withdrawn EP3541180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016222389.5A DE102016222389A1 (de) 2016-11-15 2016-11-15 Mehrlagiges Herbizidelement und Verfahren zur Anwendung des Herbizidelements
PCT/EP2017/079314 WO2018091526A1 (fr) 2016-11-15 2017-11-15 Élément herbicide multicouche et procédé d'utilisation d'un tel élément herbicide

Publications (1)

Publication Number Publication Date
EP3541180A1 true EP3541180A1 (fr) 2019-09-25

Family

ID=60331610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17798201.4A Withdrawn EP3541180A1 (fr) 2016-11-15 2017-11-15 Élément herbicide multicouche et procédé d'utilisation d'un tel élément herbicide

Country Status (4)

Country Link
EP (1) EP3541180A1 (fr)
AU (1) AU2017362705A1 (fr)
DE (1) DE102016222389A1 (fr)
WO (1) WO2018091526A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH567352A5 (fr) 1973-10-24 1975-10-15 Breveteam Sa
DE29622928U1 (de) 1996-10-31 1997-10-30 Sika Werke GmbH, 04129 Leipzig Herbizidfolie
WO2000011930A1 (fr) * 1998-08-31 2000-03-09 Capitol Vial, Inc. Couverture multicouche renfermant un biocide pour cultures agricoles et techniques connexes
US20050125887A1 (en) * 2003-12-16 2005-06-16 Taylor Michael A. Photosynthesis active radiation blocking solar pool cover and method of making the pool cover
DE102004014907A1 (de) * 2004-03-23 2005-10-13 Grafe Color Batch Gmbh Thermoplastische photobiologische Kunststofffolie
US20060115615A1 (en) * 2004-11-30 2006-06-01 Dirk Schultz At least two-layer film with at least one layer composed of thermoplastic polyurethanes, and use thereof for soil-warming of soils utilized for agriculture
US8171668B2 (en) * 2008-03-24 2012-05-08 Plantra, Inc. Spectrally selective grow tube
US8689484B2 (en) * 2010-05-28 2014-04-08 Rodney Ruskin Weed control and root barrier
US20170359967A1 (en) * 2014-12-04 2017-12-21 Sapgeo Llc Textile barrier including aqueous super absorbent polymer composition

Also Published As

Publication number Publication date
WO2018091526A1 (fr) 2018-05-24
AU2017362705A1 (en) 2019-05-30
DE102016222389A1 (de) 2018-05-17

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