两种高分子保水材料对盆栽甘蓝影响研究  

Study on the Effects of Two Absorbent Polymers on Cabbage Growth

作　　者：庄文化[1,2,3] 冯浩[1,2] 吴普特[1,2] 徐福利[1] 李百凤[1] 宁荣昌[4] 

机构地区：[1]中国科学院/水利部水土保持与生态环境研究中心,陕西杨凌712100 [2]西北农林科技大学水土保持研究所,陕西杨凌712100 [3]中国科学院研究生院,北京100039 [4]西北工业大学,西安710072

出　　处：《生态经济（学术版）》2008年第2期17-21,共5页Ecological Economy

基　　金："十一五"863计划课题(编号:2006AA100204);新世纪优秀人才支持计划资助

摘　　要：采用盆栽试验,研究了两种高分子化合物聚丙烯酸钠(sodium polyacrylate,SP)与聚丙烯酰胺(Polyacrylamide,PAM)对甘蓝生长的影响。结果表明:在土壤中施入2/1000的两种高分子材料均能抑制土壤蒸发,砂土、粘土蒸发强度分别较对照降低35.5%、22.8%;甘蓝叶绿素受两种材料的影响不显著,受肥料影响较大;两种高分子材料施入土壤中增加了甘蓝产量、降低了根冠比,地上、地下生物量砂土较对照分别增加了61.1%、16.1%,粘土分别增加了55.2%、28.7%,根冠比砂土较对照平均降低了26.9%,粘土降低16%;PAM与SP使砂土容重较对照降低了13.9%,而粘土仅降低了4.1%;单施高分子处理水分利用效率平均较对照增加59.1%,与肥料混合使用时增加77.1%。总体来看,PAM与SP作用效果相近。Based on the pot experiment,the effects of two super absorbent polymers,sodium polyacrylate (SP) and Polyacrylamide (PAM), on the growth of cabbage were studied.The results showed that soil evaporation was reduced as each super absorbent polymer was added into the soil at a ratio of 2/1000 by weight.The evaporation (average of two polymers) of sand and clay were reduced 35.5% and 22.8% respectively compared to the control.The effects of two polymers on the cabbage chlorophyll content were not notable while ...

关 键 词：高分子 聚丙烯酰胺 聚丙烯酸钠 甘蓝 水分利用效率 

分 类 号：S635[农业科学—蔬菜学]