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再生水灌溉对苜蓿生长发育和品质的影响
引用本文:张志华,陈为峰,石岳峰,田素娟,刘立军.再生水灌溉对苜蓿生长发育和品质的影响[J].应用生态学报,2009,20(11):2659-2664.
作者姓名:张志华  陈为峰  石岳峰  田素娟  刘立军
作者单位:山东农业大学资源与环境学院,泰安,271018
基金项目:国家环保公益性行业科研专项
摘    要:通过盆栽试验,研究了再生水不同灌溉方式对苜蓿生长发育和品质的影响.结果表明:与清水灌溉相比,再生水能显著增加苜蓿的株高、侧枝数及产草量,但对苜蓿叶面积有一定的抑制作用;再生水灌溉、再生水与清水混灌和轮灌使苜蓿体内可溶性蛋白含量分别增加78.43%、83.68%、72.53%,但再生水灌溉不利于苜蓿可溶性糖的累积.再生水灌溉下,苜蓿植株体内的Ca、Mg含量较清水灌溉分别增加了27.78%、26.61%;再生水灌溉及混灌下,苜蓿体内的Fe含量较清水灌溉分别降低28.71%、10.09%;再生水灌溉、轮灌和混灌下苜蓿地上部Cd含量较清水灌溉分别增加98.6%、89.5%和59.0%,但苜蓿体内重金属Pb、Cd含量仍低于国家卫生标准(GB 13078—2001)规定限量值.说明再生水是苜蓿可利用的灌溉
资源,但其长期效应仍需进一步研究.  

关 键 词:再生水灌溉  苜蓿生长  品质  盆栽试验

Effects of irrigation with regenerated water on the growth and quality of alfalfa
ZHANG Zhi-hua,CHEN Wei-feng,SHI Yue-feng,TIAN Su-juan,LIU Li-jun.Effects of irrigation with regenerated water on the growth and quality of alfalfa[J].Chinese Journal of Applied Ecology,2009,20(11):2659-2664.
Authors:ZHANG Zhi-hua  CHEN Wei-feng  SHI Yue-feng  TIAN Su-juan  LIU Li-jun
Institution:College of Resources and Environment, Shandong Agricultural University, Tai’an 271018, Shandong, China
Abstract:A pot experiment was conducted to study the effects of irrigation with regenerated water on the growth,nutrient uptake,and quality of alfalfa.Four treatments were installed,i.e.,irrigation with fresh water(Q),irrigation with regenerated water(Z),mixed irrigation with regenerated water and fresh water(Z+Q),and rotational irrigation with regenerated water and fresh water(Z/Q).Comparing with treatment Q,treatment Z increased the stem length,lateral branch number,and plant biomass significantly,but decreased leaf area.Treatments Z,Z+Q,and Z/Q increased plant soluble protein content by 78.43%,83.68% and 72.53%,respectively,but treatment Z decreased plant soluble sugar content.Treatment Z increased plant Ca and Mg contents by 27.78%and 26.61%,and treatments Z and Z+Q decreased plant Fe content by 28.71% and 10.09%,respectively.Treatments Z,Z+Q,and Z/Q increased the cadmium content in above-ground part of alfalfa by 98.6%,89.5%,and 59.0%,respectively,but the cadmium and lead contents were still lower than the thresholds of National Sanitation Standard(GB 13078-2001).It was suggested that regenerated water could be used as a source of irrigation water in alfalfa growth,but its longterm effect should be concerned.
Keywords:irrigation with regenerated water  alfalfa growth  quality  pot experiment
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