...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Science of the total environment >Zinc from foliar-applied nanoparticle fertiliser is translocated to wheat grain: A ~(65)Zn radiolabelled translocation study comparing conventional and novel foliar fertilisers
【24h】

Zinc from foliar-applied nanoparticle fertiliser is translocated to wheat grain: A ~(65)Zn radiolabelled translocation study comparing conventional and novel foliar fertilisers

机译：来自叶面涂覆的纳米粒子肥料的锌旋转到小麦谷物：A〜（65）Zn放射性标记的易位性转化研究比较常规和新型叶面肥料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Foliar zinc (Zn) fertilisers can be used to supplement or replace soil applications of Zn in situations where soil properties may decrease the plant bioavailability of Zn. However, conventional foliar Zn formulations such as zinc sulfate can cause leaf damage due to the rapid release of high amounts of Zn~(2+) into leaf tissue which can be locally phytotoxic. Zinc oxide nanoparticles (ZnO-NPs) offer an alternative approach by providing a more sustained release of Zn into leaf tissue, and potentially avoiding the need for multiple applications. We compared the efficacy of ZnO-NPs and microparticles (ZnO-MPs) to that of conventional formulations (ZnCl_2 and ZnEDTA) in wheat. This is the first study to use ~(65)Zn radiolabelled formulations and gamma spectrometry to determine the translocation of Zn to the grains and subsequent efficiency of foliar-applied ZnO-NP fertilisers. We found that ZnEDTA was the most efficient fertiliser in terms of the proportion of applied Zn translocated to wheat grain. We also investigated the effect of Zn application rate on fertiliser efficiency. For all forms of Zn, when plants were treated with Zn at 750 mg/L or 75 mg/L, there were no significant differences in the concentration of applied Zn translocated to the grain. This suggests that current Zn application rates could be decreased while still maintaining the nutritional quality of grain. Finally, using photo-stimulated luminescence (PSL) autoradiography and synchrotron-based X-ray fluorescence microscopy (XFM) we showed that the grain distribution of foliar-applied Zn mirrors that of Zn derived from root uptake.
机译：叶锌（Zn）肥料可用于补充或更换Zn的土壤应用在土壤性质可能降低Zn的植物生物利用度的情况下。然而，常规叶酸Zn制剂如硫酸锌可引起叶片损伤，由于大量Zn〜（2+）的快速释放到叶片组织中，这可以是局部植物毒性的。氧化锌纳米颗粒（ZnO-NPS）通过向叶片组织提供更持续释放的Zn，并且可能避免对多种应用的需要提供替代方法。我们将ZnO-NPS和微粒（ZnO-MPS）与小麦中常规制剂（ZnCl_2和Znedta）的疗效进行了比较。这是第一次使用〜（65）Zn放射性标记制剂和γ光谱法以确定Zn易位和随后的叶片施用的ZnO-NP肥料的效果。我们发现Znedta在施加到小麦籽粒的应用Zn的比例方面是最有效的肥料。我们还研究了Zn应用率对肥料效率的影响。对于所有形式的Zn，当用750mg / L或75mg / L的Zn处理植物时，施加到晶粒的施加Zn的浓度没有显着差异。这表明目前的Zn应用率可以降低，同时仍然保持谷物的营养质量。最后，使用光刺激的发光（PSL）放射缩影和基于同步X射线荧光显微镜（XFM），我们表明叶面施加的Zn镜的晶粒分布源于根吸收的Zn。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号