不同富硒叶面肥对轻度镉污染稻田稻米降镉富硒效果的研究
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摘要
评价了6种富硒叶面肥对轻度镉污染稻田不同水稻品种稻米中镉和硒积累的调控效果。结果表明,喷施6种不同富硒叶面肥处理比清水对照处理水稻产量均有增加,增产0.5%~14.0%;其中,以山东出品的麦稻宝叶面肥的增产效果最好,平均可增产13.55%;喷施不同种类的富硒叶面肥对稻米有一定的降镉富硒作用,试验田稻米的镉含量降低25.75%~64.38%,以一种湖南出品的富硒叶面肥效果最佳;稻米的硒含量增加3.40~21.54倍,以一种上海出品的有机富硒肥和上述湖南出品的富硒叶面肥效果最佳。
The controlling effects of six kinds of Se-enriched foliar fertilizer on Cd-Se accumulation in rice grain of different rice varieties in mild Cd-polluted paddy field were evaluated in this study. The results showed that, in comparison with the fresh water treatment|(control), the treatments of the six Se-enriched foliar fertilizers respectively increased the rice yield by 0.5% to 14.0%, a Shandong-produced Maidaobao-branded foliar fertilizer of them had the optimal effect on the yield increase; the six Se treatments respectively decreased the rice grain Cd content by 25.75%~64.38%, a Hunan-produced Se-enriched foliar fertilizer had the optimal effect on the Cd reduction; and the six Se treatments respectively increased the rice grain Se content by 3.40 to 21.54 times, a Shanghai-produced organic Se-enriched fertilizer and the Hunan-produced Se-enriched foliar fertilizer both had the optimal effect on the Se enrichment.
The controlling effects of six kinds of Se-enriched foliar fertilizer on Cd-Se accumulation in rice grain of different rice varieties in mild Cd-polluted paddy field were evaluated in this study. The results showed that, in comparison with the fresh water treatment|(control), the treatments of the six Se-enriched foliar fertilizers respectively increased the rice yield by 0.5% to 14.0%, a Shandong-produced Maidaobao-branded foliar fertilizer of them had the optimal effect on the yield increase; the six Se treatments respectively decreased the rice grain Cd content by 25.75%~64.38%, a Hunan-produced Se-enriched foliar fertilizer had the optimal effect on the Cd reduction; and the six Se treatments respectively increased the rice grain Se content by 3.40 to 21.54 times, a Shanghai-produced organic Se-enriched fertilizer and the Hunan-produced Se-enriched foliar fertilizer both had the optimal effect on the Se enrichment.
引文
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[15]吕选忠,宫象雷,唐勇.叶面喷施锌或硒对生菜吸收镉的拮抗作用研究[J].土壤学报,2006,31(3):19-22.
[16]周鑫斌,施卫明,杨林章.叶面喷硒对水稻籽粒硒富集及分布的影响[J].土壤学报,2007,44(1):73-77.
[2]顾公望.Se抗癌机理研究进展[J].中国肿瘤临床,1994,21(2):139-141.
[3]张现伟,郑家奎,张涛,等.富硒水稻的研究意义与进展[J].杂交水稻,2009,24(2):5-9.
[4]鲁如坤.土壤农业化学分析方法[M].北京:中国农业出版社,2000.
[5]农业部全国土壤肥料总站.土壤分析与技术规范[M].北京:农业出版社,1993.
[6]李静,谢正苗,徐建明,等.杭州市郊蔬菜地土壤重金属环境质量评价[J].生态环境,2003,12(3):277-280.
[7]彭华.Cd、Pb低吸收积累水稻品种筛选研究[D].长沙:湖南农业大学,2009.
[8]汤海涛,李卫东,孙玉桃,等.不同叶面肥对轻度重金属污染稻田水稻重金属积累调控效果研究[J].湖南农业科学,2013,(1):40-44.
[9]管恩相,姜守全,谭旭生,等.喷施硒肥对水稻产量及稻米含硒量的影响[J].中国种业,2012,(5):43-45.
[10]池忠志,郑家国,姜心禄,等.硒肥喷施时期对水稻产量和籽粒中硒含量的影响[J].耕作与栽培,2010,(4):13-14.
[11]池忠志,郑家国,姜心禄,等.硒肥喷施时期对水稻产量的影响及其经济效益分析[J].中国稻米,2010,16(1):11-12.
[12]魏丹,杨谦,迟凤琴,等.叶面喷施硒肥对水稻含硒量及产量的影响[J].土壤肥料,2005,(1):39-41.
[13]Filek M,Keskinen R,Hartikainen H,et al.The protective role of selenium in rape seedlings subjected to cadmium stress[J].Journal of Plant Physiology,2008,165(8):833-844.
[14]陈珊珊,张崇玉,张琴,等.硒与汞在冬小麦苗期的相互作用[J].贵州农业科学,2009,37(1):28-29.
[15]吕选忠,宫象雷,唐勇.叶面喷施锌或硒对生菜吸收镉的拮抗作用研究[J].土壤学报,2006,31(3):19-22.
[16]周鑫斌,施卫明,杨林章.叶面喷硒对水稻籽粒硒富集及分布的影响[J].土壤学报,2007,44(1):73-77.