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Abstract Modern agriculture faces severe challenges related to water scarcity, leaching and fertilizer runoff. To overcome afore-mentioned challenges hydrogels are an excellent choice which act as water/nutrient mini reservoirs in the soil and also improve water retention capability for healthy plant growth. In present work, guar gum (GG), poly(vinyl alcohol) (PVA) and graphene oxide (GO) hydrogels were cross-linked 3-Glycidyloxypropyl trimethoxysilane (GTMS) to prepare GG/PVA/GO hydrogels for agronomic applications. Hydrogels were characterized by using Fourier transform infrared spectroscopy (FT-IR), thermo-gravimetric analysis (TGA) and field emission scanning electron microscope (FE-SEM). The FT-IR spectrums confirmed specific functional groups related to hydrogel ingredients and their intermolecular interactions importantly siloxane linkage. FE-SEM micrographs revealed heterogeneous hydrogel surfaces which can be exploited for fertilizer adsorption. In addition, thermal resilience of GG/PVA/GO hydrogels is proportional to the GTMS quantity. The GG/PVA/GO hydrogels are degradable in the sandy soil up to 18 days. Swelling volumes of hydrogels were maximum at pH 7 which is inverse to the GTMS amount. The highest swelling % were 2661% and 2151% displayed by GGP(cont) and GGP-8 in distilled water, correspondingly. Hydrogels also demonstrated excellent water retention capability when 0.2% is mixed with 20g of sandy soil. Urea release profile from GGP-16 depicted 89.25%, 94.2% and 85.96% release in phosphate buffer saline, distilled and rain water in 40 days, respectively. In conclusion, the fabricated GG/PVA/GO degradable, water retentive hydrogel frameworks would be an ideal platform for sustained urea release for agricultural applications.