FR2713441A1 - Capsule for provision of liquid reserves for plants - Google Patents

Abstract

Technical field: agriculture, horticulture, viticulture. The invention consists in the creation of a hydrodegradable and biodegradable capsule over time, containing polymers which, once expanded by a liquid supply, create between the roots of the plant an aqueous reserve that can be recharged naturally or by various mechanical means created or to be created, ensuring a food reserve during periods of deficiency (drought, poor soil in nutrients and / or trace elements) or of increased needs (planting, transplanting). It combines two existing elements that have been known for a very long time, namely unleavened bread capsules (or any permeable, water-degradable and biodegradable material suitable for the same use), on the one hand, and polymers from various origins having the capacity to capture, retain and gradually restore water or aqueous solutions, on the other hand. It is used when planting or transplanting in pots or in the ground; it can also be deposited under the plant by drilling.

Description

1. Technical field of the invention

  This invention is applicable in all kinds of planting

  transplantation or transplanting. It concerns the following professions: 5 farmers - horticulturists - nurserymen - arborists - silviculturists - winemakers

  and in general any profession planting trees or plants requiring a certain amount of water or aqueous solution permanently at the roots for a specified period of time.

  This process is applicable in all soils and the constituent elements are neutral and biodegradable after a maximum of seven years. This capsule can also be introduced into the soil after

  drilling for the rescue of trees suffering from drought.

  2. PRIOR ART OF THE INVENTION In nature, many plants suffer from the absence of water at certain times and during their planting or transplantation. At present, the solution remains watering at the foot of the plants or drip but these solutions require a large consumption of water because of the loss of liquid in the soil by infiltration. Sempirical solutions, such as covering the soil around the plants to prevent evaporation, or the incorporation of polymers during plowing or hoeing around the plant, ensure a water reserve that can be captured by the rootlets.

  but, in the case of polymers, the yield is only 20% of its potential because of the scattering of the active ingredients.

3. Description of the invention

  The invention is based on the creation of an expandable capsule

  in contact with water, releasing the polymers contained therein and thus allowing the creation in the earth of an aqueous reserve for feeding the plant by its roots, both by water and, optionally , by a nourishing liquid.

  The capsule consists of a shell made of a permeable material, hydrodegradable and biodegradable (unleavened bread for example), a form suitable for use, designed in the same way as the capsules used in pharmacy; its contents, polymers in crystals, in granules or in powder, may

  water up to 100 to 200 times its volume, or even more depending on the dosages, which are calculated according to the destination and the results to be obtained.

  -2- During its expansion this capsule creates a reserve of water or

  nourishing liquid in the soil allowing rootlets and roots to come for their food or water according to their needs, hence optimizing the diet of the plant which can be estimated at 80% water saving or nourishing liquid.

4. Operation

  When planting the capsule is intact and the disintegrated

  This is done on contact with water or a high humidity, liberating the polymers which swell by absorbing the water and thus stabilize the reserve in an aqueous pouch.

  which rootlets come to tap their needs. This reserve is rechargeable by natural means such as rain or the absorption of ambient humidity, or by conventional mechanical means (watering or drip) to which it is possible to add feed elements or phyto products. -sani-

  tary. It is also possible to use a liquid injection system terminating in the chamber containing the polymers.

  The aqueous reserve can be refilled for 5 to 7 years, depending on the characteristics of the polymers. At the end of the period

  they are progressively destroyed by biodegradation.

  5. Structure of the capsule and description

Shell

  It is made of unleavened bread (or another substance with the same properties of permeability and biodegradability

  ity); it has markings and volumes on its faces. It can be colored. polymers

  Basic composition: acrylamide copolymer + crosslinked sodium acrylate + food coloring.

  Assistant Composition: N.P.K. 10/10/10 + growth hormone + trace elements.

  This formula belongs to a previous invention called

  POLYTER A1, distributed by DEVLON.

  The present invention does not relate to the nature of polymers

  used but on the creation of a significant water reserve in the soil and the ability to recharge and, in a complementary way, on the ease of implementation and use-40 tion by the professionals mentioned in paragraph 1.

  6. Use The areas of use of the capsule are almost exclusively agricultural or para-agricultural but it is possible that this water supply - with or without additional nutrients45 - is used by florists for the preservation of cut flowers, for example , or for plant feeding

  potted if the establishment of the capsule was not made by the horticulturist.

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