ABSTRACT It is essential to search for sustainable alternatives to develop controlled‐release systems for nutrients and pesticide‐based polymers to eliminate the losses of agrochemicals caused by surface runoff. This study developed new hydrogels based on PDG and lignite to enhance their use in pesticide formulations. The hydrogels were synthesized via the free radical copolymerization and characterized using FTIR, 1 3 C NMR, FESEM, XRD, and TGA techniques. The swelling ratios were 299.21, 120.34, and 90.58 g.g −1 for Lt‐g‐SAH, Lt‐PDG‐g‐SAH, and PDG‐g‐SAH, respectively. The effect of pH showed that the highest swelling occurred at pH 7.2. The Korsmeyer–Peppas, Weibull, and Higuchi models were used to investigate release of thiamethoxam in distilled water (DW). Pesticide demonstrated 34.25%, 31.64%, and 28.84% release from Lt‐g‐SAH, Lt‐PDG‐g‐SAH, and PDG‐g‐SAH, respectively, over a time duration of 92 h. Water evaporation was reduced in the following order: Blank soil > PDG‐g‐SAH > Lt‐PDG‐g‐SAH > Lt‐g‐SAH after 12 days. These results indicate the potential of the synthesized hydrogels as a sustainable solution to reduce environmental issues arising from the use of conventional pesticides. Overall, this work establishes PDG and Lignite grafted hydrogels as an effective tool for the development of sustainable agriculture.
Shaheed et al. (Sat,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: