Cover for asparagus fields has foil web turned back on itself and connected to main part of web by connections arranged to allow pressure compensation and prevent filling material from slipping away

摘要

The foil cover (2) to be placed over the crown and sides of an asparagus bank is folded back onto itself along one or both longitudinal edges and the folded area (8) is connected to the main part of the foil web with the connections arranged to ensure pressure compensation to prevent the filling material from slipping away. The connections run in the longitudinal direction of the foil web and produce a barrier for the filling material. A second foil can be placed on the foil web to prevent penetration of water.