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首页> 美国卫生研究院文献>Molecules >Improvement in the Water Retention Characteristics of Sandy Loam Soil Using a Newly Synthesized Poly(acrylamide-co-acrylic Acid)/AlZnFe2O4 Superabsorbent Hydrogel Nanocomposite Material
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Improvement in the Water Retention Characteristics of Sandy Loam Soil Using a Newly Synthesized Poly(acrylamide-co-acrylic Acid)/AlZnFe2O4 Superabsorbent Hydrogel Nanocomposite Material

机译：新型合成的聚丙烯酰胺-丙烯酸/ AlZnFe2O4超吸收水凝胶纳米复合材料对砂壤土保水特性的改善

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摘要

The use of some novel and efficient crop nutrient-based superabsorbent hydrogel nanocomposites (SHNCs), is currently becoming increasingly important to improve the crop yield and productivity, due to their water retention properties. In the present study a poly(Acrylamide-co-acrylic acid)/AlZnFe2O4 superabsorbent hydrogel nanocomposite was synthesized and its physical properties characterized using Energy Dispersive X-ray (EDX), FE-SEM and FTIR spectroscopic techniques. The effects of different levels of SHNC were studied to evaluate the moisture retention properties of sandy loam soil (sand 59%, silt 21%, clay 19%, pH 7.4, EC 1.92 dS/m). The soil amendment with 0.1, 0.2, 0.3 and 0.4 w/w% of SHNC enhanced the moisture retention significantly at field capacity compared to the untreated soil. Besides, in a separate experiment, seed germination and seedling growth of wheat was found to be notably improved with the application of SHNC. A delay in wilting of seedlings by 5–8 days was observed for SHNC-amended soil, thereby improving wheat plant growth and establishment.
机译：由于其保水性，一些新颖且有效的基于农作物营养的超吸收性水凝胶纳米复合材料（SHNCs）对于提高农作物的产量和生产力正变得越来越重要。在本研究中，合成了聚（丙烯酰胺-共丙烯酸）/ AlZnFe2O4高吸收性水凝胶纳米复合材料，并利用能量色散X射线（EDX），FE-SEM和FTIR光谱技术表征了其物理性质。研究了不同含量的SHNC的影响，以评价砂壤土的水分保持特性（砂59％，粉砂21％，粘土19％，pH 7.4，EC 1.92 dS / m）。与未经处理的土壤相比，添加0.1、0.2、0.3和0.4 w / w％的SHNC的土壤改良剂在田间持水量下显着提高了保水率。此外，在单独的实验中，发现SHNC的应用显着改善了小麦的种子发芽和幼苗生长。对于SHNC改良的土壤，观察到枯萎延迟了5-8天，从而改善了小麦的生长和生长。

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