Agricultural performance of biomaterials mulching based on nitrosamine-free natural rubber latex

Abstract

Natural rubber mulching material is generally more environmentally friendly than a conventional mulching. Artificial straw and mulch derived from natural rubber latex (NRL) with no presence of nitrosamines were used as sustainable alternatives to substitute for conventional materials like rice straw and polyethylene plastic. A real-time recorded field study employed Internet of Things (IoTs) with tracking devices and sensors to monitor the growth and quality of cucumber plants (Cucumis sativus L.) over a 50-day period. Results of the study highlight the superior efficiency of artificial straw, showcasing enhanced growth and quality. NRL mulching from natural rubber latex contained nanocellulose (CNC) filler and was vulcanized at room temperature. The addition of 3 parts per hundred rubber (phr) of CNC significantly enhanced the mechanical properties of the NRL formulation, particularly in tensile (22.13±2.26 MPa) and tear strength (39.13±4.58 N/mm). The NRL mulching was demonstrated to promote plant growth and increase yield. It has been developed to ensure the safety of agricultural products and to support environmental conservation.