Abstract: The embodiments of the present invention aim to integrate two common agricultural-practices, first of hothouses cover application, and second of protective netting. A method for reversibly sealing the pores of netting by applying a sealing agent on a net in a reversible manner, thereby producing an agricultural covering to protect underlying crops, particularly from cold conditions, is disclosed. A method for reversibly opening the pores of a sealed net, by exposing said portion of the net to chemical or physical unsealing agents and thus opening at least a portion of the sealed pores of the net, is conjointly disclosed. Furthermore, a method of including additives to the sealing agent, which enhances the protective properties of the resultant covering such as its ability to repel insects, its ability to block ultraviolet or other radiation, its water proofing qualities, is also disclosed.