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    • 87. 发明公开
    • ELONGATED SHEET FOR COVERING AGRICULTURAL CULTIVATED PLANTS
    • US20230148407A1
    • 2023-05-11
    • US17860510
    • 2022-07-08
    • Asterios DAIOS
    • Asterios DAIOSDimitrios DAIOS
    • A01G13/02
    • A01G13/0206A01G2013/006
    • The present invention relates to an elongated sheet (1) for covering agricultural cultivated plants (2) for generating a greenhouse climate in the covered area, having an elongated basic film (3) made of plastic, wherein a ventilation area (5) extending in the longitudinal direction (L) of the sheet is provided in the central area of the basic film (4) and having a plurality of ventilation openings (6), wherein a cover film (9) of plastic extending in longitudinal sheet direction (L) of the basic film (3) is applied to the ventilation area (5) forming free spaces (11) for air exchange and is firmly welded to the basic film (3) via a plurality of connection areas (10) following one another in longitudinal sheet direction (L). In accordance with the invention, it is provided that the material and/or the quality of the cover film (9) is selected in such a manner that the cover film (9), in a first state, lies flat against and/or on the upper side of the basic film (3) at least substantially in the region of the free spaces (11) and, preferably by convection of the heated air in the covered area, in a second state at least partially lifts off relative to the upper side of the basic film (3) forming free spaces (11), wherein the first state is maintained up to a transition temperature Ti of the greenhouse climate and wherein the second state is obtained and/or realized from the transition temperature Ti of the greenhouse climate.