Analysis of Application of Superabsorbent Polymer in Sandy Soils  

高吸水树脂在沙质土壤中的保水效果分析(英文)

作　　者：唐玉邦[1] 徐磊[1] 虞利俊[1] 郑洪倩[1] 裴勤[1] 王恒义[1] 

机构地区：[1]江苏省农业科学院农业设施与装备研究所,江苏南京210014

出　　处：《Agricultural Science & Technology》2014年第2期219-221,237,共4页农业科学与技术（英文版）

基　　金：Supported by Jiangsu Agricultural Science and Technology Innovation Fund[CX(13)3031]~~

摘　　要：[Objective]The aim was to research water retention of superabsorbent polymer （SAP） in sandy soils. [Method] With soils from an ancient course in the Yel ow River as materials, acrylate SAP was taken as water retention materials to conduct the test. [Result] With 0.2%-0.4% SAP added, dewatering period of sandy soil extended after irrigation; the period of water retention quantity over 10% last for 42 d, which was significantly more than that of the control group in 16 d （saturated water reducing to 10%）; water retention effect proved better at the 2nd irrigation without soil stirring compared with the 1st irrigation. [Conclusion] The mixture of SAP with sandy soils promotes water retention in soils.[目的]研究高吸水树脂在沙质土壤中的保水效果。[方法]以江苏省徐州地区黄河故道砂质土为对象,丙烯酸酯系列高吸水性树脂为保水材料进行了相关试验。[结果]添加土壤质量0.2%～0.4%的高吸水树脂可延长砂质土壤灌溉后的脱水期。脱水期间持水量高于10%的天数达42 d,明显高于对照组从饱和含水量降至10%左右持水量时16 d的脱水天数。在二次灌水不搅动土层的情况下保水效果好于首次灌水。[结论]高吸水性树脂与土壤混合施用有重复吸水保水效果。

关 键 词：SAP Sancly soil Water retention Dewatering rate 

分 类 号：S482.99[农业科学—农药学]