生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2013年
6期
1053-1057
,共5页
刘传平%徐向华%廖新荣%李淑仪%李芳柏
劉傳平%徐嚮華%廖新榮%李淑儀%李芳柏
류전평%서향화%료신영%리숙의%리방백
叶面喷施%水东芥菜%重金属%蔬菜品质%硅溶胶%铈溶胶
葉麵噴施%水東芥菜%重金屬%蔬菜品質%硅溶膠%鈰溶膠
협면분시%수동개채%중금속%소채품질%규용효%시용효
foliar application%Shuidong mustard%heavy metal%quality of vegetable%silicon sol%cerium sol
田间小区试验研究了叶面喷Si、喷Ce以及喷Si+Ce处理对水东芥菜生长、地上部重金属Cd、As、Pb、Cr、Hg含量，以及维生素C（Vc）、可溶性糖、硝酸盐、亚硝酸盐含量等品质的影响。结果表明：叶面喷Si、喷Ce以及喷Si+Ce处理，均可以促进水东芥菜生长，增加水东芥菜地上部鲜物质和干物质重量；尤其是叶面喷Si+Ce处理后水东芥菜地上部鲜物质和干物质重量比对照分别增加了6.2%和16.2%；差异达到显著水平。与对照相比，叶面喷Si、喷Ce以及喷Si+Ce处理后水东芥菜地上部Cd含量分别下降了24.5%、22.9%、42.6%；As含量分别下降了26.4%、26.0%、40.0%；Pb含量分别下降22.5%、32.5%、36.8%；差异都达到显著水平。但是各处理对水东芥菜地上部 Cr 和 Hg 含量并无显著影响。与单独喷 Si 或单独喷Ce相比，叶面喷Si+Ce复合处理对降低水东芥菜地上部Cd和As含量效果更佳。叶面喷Si、喷Ce以及喷Si+Ce处理，还可以显著增加水东芥菜地上部Vc、可溶性糖含量，显著降低其硝酸盐、亚硝酸盐含量；同时叶面喷施Si+Ce处理后水东芥菜地上部亚硝酸盐含量是分别单独喷Si、喷Ce的80.3%和79.1%，差异达到显著水平。因此，叶面喷施Si+Ce复合处理在促进水东芥菜生长，降低水东芥菜体内重金属含量以及提高水东芥菜品质等方面的性能要优于单独喷施Si或单独喷施Ce。
田間小區試驗研究瞭葉麵噴Si、噴Ce以及噴Si+Ce處理對水東芥菜生長、地上部重金屬Cd、As、Pb、Cr、Hg含量，以及維生素C（Vc）、可溶性糖、硝痠鹽、亞硝痠鹽含量等品質的影響。結果錶明：葉麵噴Si、噴Ce以及噴Si+Ce處理，均可以促進水東芥菜生長，增加水東芥菜地上部鮮物質和榦物質重量；尤其是葉麵噴Si+Ce處理後水東芥菜地上部鮮物質和榦物質重量比對照分彆增加瞭6.2%和16.2%；差異達到顯著水平。與對照相比，葉麵噴Si、噴Ce以及噴Si+Ce處理後水東芥菜地上部Cd含量分彆下降瞭24.5%、22.9%、42.6%；As含量分彆下降瞭26.4%、26.0%、40.0%；Pb含量分彆下降22.5%、32.5%、36.8%；差異都達到顯著水平。但是各處理對水東芥菜地上部 Cr 和 Hg 含量併無顯著影響。與單獨噴 Si 或單獨噴Ce相比，葉麵噴Si+Ce複閤處理對降低水東芥菜地上部Cd和As含量效果更佳。葉麵噴Si、噴Ce以及噴Si+Ce處理，還可以顯著增加水東芥菜地上部Vc、可溶性糖含量，顯著降低其硝痠鹽、亞硝痠鹽含量；同時葉麵噴施Si+Ce處理後水東芥菜地上部亞硝痠鹽含量是分彆單獨噴Si、噴Ce的80.3%和79.1%，差異達到顯著水平。因此，葉麵噴施Si+Ce複閤處理在促進水東芥菜生長，降低水東芥菜體內重金屬含量以及提高水東芥菜品質等方麵的性能要優于單獨噴施Si或單獨噴施Ce。
전간소구시험연구료협면분Si、분Ce이급분Si+Ce처리대수동개채생장、지상부중금속Cd、As、Pb、Cr、Hg함량，이급유생소C（Vc）、가용성당、초산염、아초산염함량등품질적영향。결과표명：협면분Si、분Ce이급분Si+Ce처리，균가이촉진수동개채생장，증가수동개채지상부선물질화간물질중량；우기시협면분Si+Ce처리후수동개채지상부선물질화간물질중량비대조분별증가료6.2%화16.2%；차이체도현저수평。여대조상비，협면분Si、분Ce이급분Si+Ce처리후수동개채지상부Cd함량분별하강료24.5%、22.9%、42.6%；As함량분별하강료26.4%、26.0%、40.0%；Pb함량분별하강22.5%、32.5%、36.8%；차이도체도현저수평。단시각처리대수동개채지상부 Cr 화 Hg 함량병무현저영향。여단독분 Si 혹단독분Ce상비，협면분Si+Ce복합처리대강저수동개채지상부Cd화As함량효과경가。협면분Si、분Ce이급분Si+Ce처리，환가이현저증가수동개채지상부Vc、가용성당함량，현저강저기초산염、아초산염함량；동시협면분시Si+Ce처리후수동개채지상부아초산염함량시분별단독분Si、분Ce적80.3%화79.1%，차이체도현저수평。인차，협면분시Si+Ce복합처리재촉진수동개채생장，강저수동개채체내중금속함량이급제고수동개채품질등방면적성능요우우단독분시Si혹단독분시Ce。
Effects of silicon, cerium or silicon and cerium sols combined foliar application on growth, heavy metal concentration and other qualities including vitamin c, soluble sugar, nitrate and nitrite contents in Shuidong mustard were studied in field experiments. Results showed that the growth of mustard was promoted and the fresh or dry weight of Shuidong mustard was increased with the treatments of silicon, cerium or silicon and cerium sols combined foliar application, especially treated with silicon and cerium sols combined foliar application. Comparing with the control, the fresh or dry weights of the vegetable shoot were significantly increased at the rate of 6.2%or 16.2%treated with Si+Ce spraying, respectively. The treatments of spraying with Si, Ce or Si+Ce led to a decrease in the Cd concentration of 24.5%, 22.9%or 42.6%, a decrease in the As concentration of 26.4%, 26.0%or 40.0%and a decrease in the Pb concentration of 22.5%, 32.5%or 36.8%for the vegetable shoots, respectively, but no significant difference was found in Cr or Hg concentration in the vegetable shoots between control and treatments. Comparing with Si or Ce spraying, the effects on reducing heavy metals Cd and As concentration in mustard shoots were more obvious treated with Si+Ce foliar application. The vitamin c, soluble sugar, nitrate and nitrite contents in mustard shoots were also decreased significantly with the treatments of spraying with Si, Ce or Si+Ce. The nitrite contents in mustard shoots with Si+Ce sprayed were 80.3%of that with Si sprayed and 79.1%of that with Ce sprayed, and the differences were significant. These results indicated that Si+Ce foliar application might be more potential for promoting the growth and qualities including vitamin c, soluble sugar, nitrate and nitrite contents of Shuidong mustard.
