In a recent study, we synthesized hydrogel from various sources, where we carried out their identification and characterization, and then rice straw-based hydrogel (SH) was used to cultivate beans and maize in both sandy and calcareous soils, comparing it to acrylamide hydrogel (AH). In this work, we focused only on the biological effects and effectiveness of the hydrogel made from rice straw on sandy and calcareous soils, as well as the economic analysis of hydrogel synthesized from rice straw. Biological effects and efficiency of two different ratios, 0.2% & 0.4%, from SH and AH were investigated using an incubation experiment that presents at the National Research Centre. The results generally showed that the two ratios of the hydrogels (AH & SH) improved the hydro-physical (moisture content, bulk density, particle density, total soil porosity, soil moisture retention curve, and pores diameters), physiochemical (organic matter, organic carbon), and biological (total count of bacteria, dehydrogenase and nitrogenase in the rhizosphere) properties on the two types of soil textures used. On the other hand, calculating the cost of producing one tonne of SH and comparing it to AH's price and attributes allowed for an economic appraisal. According to the data, one tonne of AH costs $2727 to import, compared to $1106 for one tonne of SH.

在最近的一项研究中，我们合成了各种来源的水凝胶，并对其进行了鉴定和表征，然后将稻草基水凝胶 (SH) 用于在沙质和石灰质土壤中种植豆类和玉米，并将其与丙烯酰胺水凝胶进行比较（啊）。在这项工作中，我们只关注稻草制成的水凝胶在沙质和石灰质土壤上的生物学效应和有效性，以及稻草合成水凝胶的经济分析。SH 和 AH 的两种不同比例（0.2% 和 0.4%）的生物效应和效率使用国家研究中心的孵化实验进行了研究。结果普遍表明，水凝胶的两种比例（AH 和 SH）提高了水物理性能（水分含量、堆积密度、颗粒密度、土壤总孔隙率、土壤水分保持曲线和孔径）、物理化学（有机质、有机碳）和生物学（根际细菌、脱氢酶和固氮酶的总数）对所用两种土壤质地的影响。另一方面，计算生产一吨 SH 的成本并将其与 AH 的价格和属性进行比较，以进行经济评估。根据数据，一吨 AH 的进口成本为 2727 美元，而一吨 SH 的进口成本为 1106 美元。计算生产一吨 SH 的成本并将其与 AH 的价格和属性进行比较以进行经济评估。根据数据，一吨 AH 的进口成本为 2727 美元，而一吨 SH 的进口成本为 1106 美元。计算生产一吨 SH 的成本并将其与 AH 的价格和属性进行比较以进行经济评估。根据数据，一吨 AH 的进口成本为 2727 美元，而一吨 SH 的进口成本为 1106 美元。