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氧化铁纳米颗粒作为花生（落花生）的潜在铁肥

Iron Oxide Nanoparticles as a Potential Iron Fertilizer for Peanut (Arachis hypogaea).

作者信息

Rui Mengmeng, Ma Chuanxin, Hao Yi, Guo Jing, Rui Yukui, Tang Xinlian, Zhao Qi, Fan Xing, Zhang Zetian, Hou Tianqi, Zhu Siyuan

机构信息

College of Resources and Environmental Sciences, China Agricultural UniversityBeijing, China; College of Agriculture, Guangxi UniversityNanning, China.

Stockbridge School of Agriculture, University of Massachusetts, Amherst MA, USA.

出版信息

Front Plant Sci. 2016 Jun 9;7:815. doi: 10.3389/fpls.2016.00815. eCollection 2016.

DOI:10.3389/fpls.2016.00815
PMID:27375665
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4899443/
Abstract

Nanomaterials are used in practically every aspect of modern life, including agriculture. The aim of this study was to evaluate the effectiveness of iron oxide nanoparticles (Fe2O3 NPs) as a fertilizer to replace traditional Fe fertilizers, which have various shortcomings. The effects of the Fe2O3 NPs and a chelated-Fe fertilizer (ethylenediaminetetraacetic acid-Fe; EDTA-Fe) fertilizer on the growth and development of peanut (Arachis hypogaea), a crop that is very sensitive to Fe deficiency, were studied in a pot experiment. The results showed that Fe2O3 NPs increased root length, plant height, biomass, and SPAD values of peanut plants. The Fe2O3 NPs promoted the growth of peanut by regulating phytohormone contents and antioxidant enzyme activity. The Fe contents in peanut plants with Fe2O3 NPs and EDTA-Fe treatments were higher than the control group. We used energy dispersive X-ray spectroscopy (EDS) to quantitatively analyze Fe in the soil. Peanut is usually cultivated in sandy soil, which is readily leached of fertilizers. However, the Fe2O3 NPs adsorbed onto sandy soil and improved the availability of Fe to the plants. Together, these results show that Fe2O3 NPs can replace traditional Fe fertilizers in the cultivation of peanut plants. To the best of our knowledge, this is the first research on the Fe2O3 NPs as the iron fertilizer.

摘要

纳米材料几乎应用于现代生活的方方面面，包括农业。本研究的目的是评估氧化铁纳米颗粒（Fe2O3 NPs）作为肥料替代具有各种缺点的传统铁肥的有效性。在盆栽试验中研究了Fe2O3 NPs和一种螯合铁肥（乙二胺四乙酸铁；EDTA-Fe）对花生（Arachis hypogaea）生长发育的影响，花生是一种对缺铁非常敏感的作物。结果表明，Fe2O3 NPs增加了花生植株的根长、株高、生物量和SPAD值。Fe2O3 NPs通过调节植物激素含量和抗氧化酶活性促进了花生的生长。Fe2O3 NPs和EDTA-Fe处理的花生植株中的铁含量高于对照组。我们使用能量色散X射线光谱（EDS）对土壤中的铁进行定量分析。花生通常种植在沙质土壤中，这种土壤容易使肥料流失。然而，Fe2O3 NPs吸附在沙质土壤上，提高了植物对铁的有效性。总之，这些结果表明，Fe2O3 NPs在花生植株种植中可以替代传统铁肥。据我们所知，这是关于Fe2O3 NPs作为铁肥的首次研究。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/1f9a90a5f813/fpls-07-00815-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/62781b5e56e5/fpls-07-00815-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/d62256318cfa/fpls-07-00815-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/1f9a90a5f813/fpls-07-00815-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/62781b5e56e5/fpls-07-00815-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/b6e58b063146/fpls-07-00815-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/30c4d8b12c87/fpls-07-00815-g003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1df7/4899443/1f9a90a5f813/fpls-07-00815-g007.jpg

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