| 硒锌钼对黄土高原马铃薯和小白菜产量及营养元素与硒镉含量的影响 |
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| 引用本文： | 王建伟,王朝辉,毛晖,赵护兵,昝亚玲,李孟华.硒锌钼对黄土高原马铃薯和小白菜产量及营养元素与硒镉含量的影响[J].农业环境保护,2012(11):2114-2120. |
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| 作者姓名： | 王建伟 王朝辉 毛晖 赵护兵 昝亚玲 李孟华 |
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| 作者单位： | 西北农林科技大学资源与环境学院,陕西杨凌712100 |
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| 基金项目： | 农业公益性行业科研专项（201103005,201103003）; 国家自然科学基金（30871596,30971866） |
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| 摘 要： | 黄土高原旱地土壤微量元素硒锌钼潜在缺乏,不仅影响农作物产量,还降低农产品的矿物营养品质,研究施用硒锌钼肥料对该地区作物生长及可食部分营养元素含量的影响具有重要意义。通过田间试验,研究了硒锌钼肥单独土施、硒锌肥配施、硒锌钼肥配施对马铃薯和小白菜产量及营养元素和硒镉含量的影响。结果表明：硒肥提高了马铃薯块茎和小白菜叶片硒含量,分别由对照的0.02mg.kg-1和0.09mg.kg-1提高到1.51～2.15mg.kg-1和13.03～19.44mg.kg-1,钼肥提高了马铃薯块茎和小白菜叶片钼含量,分别由对照的0.43mg.kg-1和2.3mg.kg-1提高到1.03～1.16mg.kg-1和17.7～19.9mg.kg-1,单施与配施处理间无显著差异。锌肥土施或锌与硒、钼肥配合土施不但使小白菜叶片中的锌含量由对照的21.0mg.kg-1显著提高到48.1～68.4mg.kg-1,还使镉含量显著降低50%以上;施锌对马铃薯块茎的锌含量无显著影响。硒锌钼肥单施或配施均对马铃薯和小白菜产量及氮、磷、钾、硫、钙、镁、铁、锰、铜、硼含量无显著影响。因此,在黄土高原旱地,硒钼配合土施可同时提高马铃薯块茎的硒钼含量,硒锌钼配合土施可同时提高小白菜叶片的硒锌钼含量。
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| 关 键 词： | 马铃薯 小白菜 产量 营养元素 硒 锌 钼 镉 |
Effect of Se,Zn and Mo on Yield and Contents of Nutrient Elements and Selenium and Cadmium of Potato and Cabbage on the Loess Plateau |
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| WANG Jian-wei,WANG Zhao-hui,MAO Hui,ZHAO Hu-bing,ZAN Ya-ling,LI Meng-hua.Effect of Se,Zn and Mo on Yield and Contents of Nutrient Elements and Selenium and Cadmium of Potato and Cabbage on the Loess Plateau[J].Agro-Environmental Protection,2012(11):2114-2120. |
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| Authors: | WANG Jian-wei WANG Zhao-hui MAO Hui ZHAO Hu-bing ZAN Ya-ling LI Meng-hua |
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| Institution: | (Northwest A ＆ F University,College of Resources and Environment,Yangling 712100,China) |
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| Abstract: | On the dryland of the Loess Plateau in China,deficiency of Se,Zn and Mo not only impacts crop yields,but also reduces the essential nutrient concentrations in agricultural products.Therefore,in order to improve the crop yield and its nutritional quality,field experiments were carried out to investigate the effects of separately soil-applied selenium（Se）,zinc（Zn）and molybdenum（Mo）fertilizer or their combination on the yield and concentrations of mineral nutrient,Se and cadmium（Cd）of potato and cabbage.Obtained results showed that soil Se application significantly increased Se concentrations in potato tubers and cabbage leaves from 0.02 mg.kg-1 and 0.09 mg.kg-1 to 1.51～2.15 mg.kg-1 and 13.03～19.44 mg.kg-1,respectively,soil applied Mo significantly increased Mo concentrations from 0.43 mg.kg-1 to 1.03～1.16 mg.kg-1 in potato tubers and 2.3 mg.kg-1 to 17.7～19.9 mg.kg-1 in cabbage leaves,and the increment of Se and Mo concentration was not significantly different between separate and combined application of Se and Mo fertilizers.Soil application of Zn alone or together with Se and Mo fertilizers significantly increased Zn concentrations in cabbage leaves from 21.0 mg.kg-1 to 48.1～68.4 mg.kg-1,and also significantly decreased Cd concentrations of cabbage leaves by more than 50%.Soil Zn application had no effect on the Zn concentration of potato tubers.However,neither separate nor combined application of microelements had significant effect on the yields of potato and cabbage,and also con centrations of nitrogen（N）,phosphorus（P）,potassium（K）,sulfur（S）,calcium（Ca）,magnesium（Mg）,iron（Fe）,manganese（Mn）,copper（Cu）and boron（B）in cabbage leaves and potato tubers.In conclusion,in the Loess Plateau areas,soil application of Se and Mo fertilizers could improve Mo and Se nutrition of potato tube,and soil application of Se,Zn and Mo fertilizer could improve Se,Zn and Mo nutrition of cabbage leaves. |
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| Keywords: | potato cabbage yield nutritional elements selenium zinc molybdenum cadmium |
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