土壤保水剂性能分析及应用研究  

Performance Analysis of Water-retaining Agents and Their Application

作　　者：王玉华[1] 姜振玲 刘田军[1] 孙玉军[1] 苑治海 高政绪 王德权[1] 杜传印[1] WANG Yu-hua;JIANG Zhen-ling;LIU Tian-jun;SUN Yu-jun;YUAN Zhi-hai;GAO Zheng-xu;WANG De-quan;DU Chuan-yin(Weifang Tobacco Company of Shandong Province,Weifang Shandong 261205;Fangzi District Agricultural Bureau of Weifang City)

机构地区：[1]山东潍坊烟草有限公司,山东潍坊261205 [2]潍坊市坊子区农业局

出　　处：《现代农业科技》2018年第7期202-205,共4页Modern Agricultural Science and Technology

摘　　要：为了帮助缓解干旱对农业生产的影响,对2种类型保水剂保水、吸水性能进行探究。试验结果表明,保水剂在不同介质中吸水倍率及速率不同,其中丙烯酰胺+丙烯酸钾型保水剂在去离子水中吸水倍率为333.987 g/g,在地下水中为119.555 g/g;淀粉接枝丙烯酸盐交联共聚物型保水剂在去离子水中吸水倍率为402.957 g/g,在地下水中为131.854 g/g;2种保水剂在去离子水中吸水速率显著高于地下水中的吸水速率。壤土中施加丙烯酰胺+丙烯酸钾型保水剂水分蒸发率为54.67%,施加淀粉接枝丙烯酸盐交联共聚物型保水剂水分蒸发率为58.97%,不加保水剂水分蒸发率为73.00%;砂土中施加丙烯酰胺+丙烯酸钾型保水剂水分蒸发率为69.47%,施加淀粉接枝丙烯酸盐交联共聚物型保水剂水分蒸发率为72.70%,不加保水剂水分蒸发率为81.17%。In order to help alleviate the impact of drought on agricultural production the water-retaining capacity and water-absorption capacityof two types of water-retaining agents were researched.The main experimental results showed that the water absorbency and water absorption rate weredifferent in different mediums. The water absorbency of acrylamide and potassium acrylate water-retaining agent was 333.987 g/g in deionized water,and was 119.555 g/g in groundwater.The water absorbency of starch grafted acrylic acid salt crosslinked copolymer was 402.957 g/g in deionized waterand 131.854 g/g in groundwater. The water absorption rates of two types of water-retaining agents were significantly higher in the deionized water thanthat in the groundwater.Applying acrylamide and potassium acrylate water-retaining agent in the loam soil,the water evaporation rate was 54.67%.Applying starch graft acrylate crosslinked copolymer water-retaining agent in the loam soil,the water evaporation rate was 58.97%.Without water-retaining agent,the water evaporation rate was 73%.Applying acrylamide and potassium acrylate water-retaining agent in sandy soil,the waterevaporation rate was 69.47%.Applying starch graft acrylate crosslinked copolymer water-retaining agent,the water evaporation rate was 72.70%.Without water-retaining agent,the water evaporation rate was 81.17%.

关 键 词：保水剂 吸水倍率 土壤质地 保水性能 

分 类 号：S482.99[农业科学—农药学]