拔节期土壤施锌对小麦籽粒中锌生物有效性影响评估
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S512;Q945.14;TS202.1

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山西省农谷建设科研专项(SXNGJSKYZX201706)和山西省重点研发计划重点项目(201703D211001-01-02)资助。


Effect of Zinc Application at Jointing Stage on Zinc Bioavailability in Wheat Grain
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    摘要:

    本研究通过2012—2013及2013—2014两个年度的田间试验,在小麦(扬麦-16)的拔节期土壤施加高用量的锌肥,通过植酸/锌摩尔比法,对小麦籽粒进行了锌生物有效性评价,每公顷施ZnSO4.7H2O的量达到300 kg能显著提高小麦籽粒锌含量,小麦籽粒锌含量达到60 mg/kg以上,小麦籽粒植酸/锌摩尔比显著降低,植酸/锌摩尔比最大可降低至15以下,表明小麦锌强化后籽粒中锌的生物有效性得到显著提高。

    Abstract:

    In this study, a two-year field experiment was conducted and the molar ratio of phytic acid/zinc was used to explore and assess the effects of zinc (Zn) fertilization on Zn bioavailability in wheat grains (Triticum aestivum Linn. cv. Yang Mai 16) by applying increasing rates of Zn fertilizers during the jointing stage. The results showed that Zn concentration in wheat grains was significantly increased while the molar ratio of phytic acid/Zn was significantly decreased with increasing rate of Zn fertilizer. Under 300 kg/hm2 of ZnSO4.7H2O, Zn concentration in wheat grains was increased to over 60 mg/kg and the molar ratio of phytic acid/Zn decreased to below 15. It indicated that Zn bioavailability in wheat grains is significantly improved when wheat is fortified with Zn.

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王张民,潘 斐,刘 琦,袁林喜,段增强,尹雪斌.拔节期土壤施锌对小麦籽粒中锌生物有效性影响评估[J].土壤,2018,50(6):1222-1228. WANG Zhangmin, PAN Fei, LIU Qi, YUAN Linxi, DUAN Zengqiang, YIN Xuebin. Effect of Zinc Application at Jointing Stage on Zinc Bioavailability in Wheat Grain[J]. Soils,2018,50(6):1222-1228

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历史
  • 收稿日期:2018-07-20
  • 最后修改日期:2018-08-23
  • 录用日期:2018-08-24
  • 在线发布日期: 2018-11-16
  • 出版日期: 2018-12-25
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