School of Chemistry, Faculty of Sciences, Shoolini University, Solan, Himachal Pradesh 173229, India.
Center for Computational Materials Science, Institute of Physics, Slovak Academy of Sciences, 84511 Bratislava, Slovakia.
Biomolecules. 2020 Jun 22;10(6):939. doi: 10.3390/biom10060939.
Downgrading in the yield of crop is due to the inadequate availability of water. The way out for this trouble is to construct synthetic resources dependent on natural polymers with great water absorption and preservation limits. The present study investigated the design of agar-agar (Agr) and gelatin (GE) copolymerized methyl acrylate (MA) and acrylic acid (AA) hydrogel (Agr/GE-co-MA/AA) as a soil conditioner for moisture maintenance in agriculture. Agr/GE-co-MA/AA hydrogel was prepared by utilizing microwave-assisted green synthesis following the most suitable reaction conditions to obtain a remarkable water swelling percentage. The fabricated Agr/GE-co-MA/AA hydrogel was investigated through field emission scanning electron microscopy (FESEM), fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The water holding capacity of the soil and sand was examined by mixing Agr/GE-co-MA/AA hydrogel with soil and sand. The result demonstrates that the water holding time extended from 10 to 30 days for soil and 6 to 10 days for sand by using Agr/GE-co-MA/AA hydrogel. This synthesized biodegradable, low-cost and non-toxic Agr/GE-co-MA/AA hydrogel shows novelty as soil water maintaining material for irrigation in agriculture.
作物产量下降是由于水资源供应不足。解决这个问题的方法是构建依赖于具有高吸水性和保水极限的天然聚合物的合成资源。本研究设计了琼脂-琼脂（Agr）和明胶（GE）与甲基丙烯酸（MA）和丙烯酸（AA）共聚水凝胶（Agr/GE-co-MA/AA），作为农业中保持土壤水分的土壤调节剂。Agr/GE-co-MA/AA 水凝胶是通过利用微波辅助绿色合成在最适宜的反应条件下制备的，以获得显著的水膨胀百分比。通过场发射扫描电子显微镜（FESEM）、傅里叶变换红外光谱（FTIR）和 X 射线衍射（XRD）对所制备的 Agr/GE-co-MA/AA 水凝胶进行了研究。通过将 Agr/GE-co-MA/AA 水凝胶与土壤和沙子混合，研究了土壤和沙子的持水能力。结果表明，使用 Agr/GE-co-MA/AA 水凝胶可将土壤的持水时间从 10 天延长至 30 天，而沙子的持水时间从 6 天延长至 10 天。这种合成的可生物降解、低成本和无毒的 Agr/GE-co-MA/AA 水凝胶作为农业灌溉用土壤保水材料具有新颖性。
