草原与草坪
草原與草坪
초원여초평
GRASSLAND AND TURF
2013年
5期
33-39
,共7页
再生水%灌溉%果岭土壤%金属离子%营养元素
再生水%灌溉%果嶺土壤%金屬離子%營養元素
재생수%관개%과령토양%금속리자%영양원소
recycled water%irrigation%soil in green%metal ion%nutrition elements
使用自来水、二级再生水、三级再生水3种水质灌溉果岭草坪,每月表施草炭与石膏混合物、湿润剂、沙子3种基质。两年的研究结果表明：果岭的容重未曾呈现出显著变化(P>0.05)；二级再生水灌溉后果岭土壤K+、Na+含量发生显著变化(P<0.05)；果岭土壤EC(电导率)为0.38 dS/m,比自来水、三级再生水灌溉处理分别显著高出0.20 dS/cm、0.19 dS/cm；表施草炭和石膏混合物后果岭土壤Ca2+、Mg2+含量分别为15466.85 mg/kg和1415.36 mg/kg,显著高于表施湿润剂和沙子；二级再生水含有丰富的营养元素,灌溉后土壤全氮、速效钾、速效磷、有机质含量一定程度上升高,从而为草坪草生长提供一定的营养物质。
使用自來水、二級再生水、三級再生水3種水質灌溉果嶺草坪,每月錶施草炭與石膏混閤物、濕潤劑、沙子3種基質。兩年的研究結果錶明：果嶺的容重未曾呈現齣顯著變化(P>0.05)；二級再生水灌溉後果嶺土壤K+、Na+含量髮生顯著變化(P<0.05)；果嶺土壤EC(電導率)為0.38 dS/m,比自來水、三級再生水灌溉處理分彆顯著高齣0.20 dS/cm、0.19 dS/cm；錶施草炭和石膏混閤物後果嶺土壤Ca2+、Mg2+含量分彆為15466.85 mg/kg和1415.36 mg/kg,顯著高于錶施濕潤劑和沙子；二級再生水含有豐富的營養元素,灌溉後土壤全氮、速效鉀、速效燐、有機質含量一定程度上升高,從而為草坪草生長提供一定的營養物質。
사용자래수、이급재생수、삼급재생수3충수질관개과령초평,매월표시초탄여석고혼합물、습윤제、사자3충기질。량년적연구결과표명：과령적용중미증정현출현저변화(P>0.05)；이급재생수관개후과령토양K+、Na+함량발생현저변화(P<0.05)；과령토양EC(전도솔)위0.38 dS/m,비자래수、삼급재생수관개처리분별현저고출0.20 dS/cm、0.19 dS/cm；표시초탄화석고혼합물후과령토양Ca2+、Mg2+함량분별위15466.85 mg/kg화1415.36 mg/kg,현저고우표시습윤제화사자；이급재생수함유봉부적영양원소,관개후토양전담、속효갑、속효린、유궤질함량일정정도상승고,종이위초평초생장제공일정적영양물질。
Tap water,secondary recycled water and tertiary recycled water were used to irrigate green.Mean-while,the mixture of gypsum and peat,wetting agent and sand were topdressed monthly.Results of two years study showed that soil bulk density of green did not significantly change (P>0.05).However,the content of K+ and Na+ changed significantly after irrigation with secondary recycled water (P<0.05).In addition,the EC of soil irrigated with secondary recycled water was 0.38 dS/m ,which was 0.20 dS/m and 0.19 dS/m higher than that of soil irrigated with tap water and tertiary recycled water respectively (P<0.05).The content of Ca2+,Mg2+ was 15 466.85 mg/kg and 1 415.36 mg/kg after applying mixture of gypsum and peat,which was significantly higher than that in soil applied with wetting agents and sand.The content of total N,available K,a-vailable P and organic matter were increased in soil irrigated with secondary recycled water.Secondary recycled water was rich in certain chemical elements which may provide certain nutrients for turfgrass growth.
