Fig. 10. (a) Schematic presentation of water retention in the soil through agar agar/gelatin/methyl acrylate/acrylic acid (Agr/GE-co-MA/AA hydrogel) (b) demonstrates hydrogel used in the agriculture field for the function of plant water assimilation, reproduced from ref. 59 under the terms of the Creative Commons CC BY license, 2020.
