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The effect of arbuscular mycorrhizal fungi and biochar on the growth and Cd/Pb accumulation in Zea mays.
International Journal of Phytoremediation ( IF 3.7 ) Pub Date : 2020-02-16 , DOI: 10.1080/15226514.2020.1725867
Feng Zhuo 1 , Xiao-Feng Zhang 1 , Li-Li Lei 1 , Ting-Xiu Yan 1 , Rui-Rui Lu 1 , Zun-He Hu 1 , Yuan-Xiao Jing 1
Affiliation  

A greenhouse pot experiment was conducted to assess the effects of biochar (BC) and arbuscular mycorrhizal fungus (AMF)−Funneliformis mosseae (Fm), Glomus versiforme (Gv) and Rhizophagus intraradices (Ri) on the plant growth and Cd/Pb accumulation by corn grown in the soils artificially contaminated with 5 mg Cd and 300 mg Pb kg−1 soil. The single AMF inoculation and combined usage of AMF and BC evidently improved the P contents of maize. Furthermore, the combined use of AMF and BC produced pronounced positive effect on corn growth, and the shoot biomass in Gv + BC group was 9.85-fold higher than that of the control. Meanwhile, the single BC addition and combined utilization of AMF and BC significantly reduced Cd and Pb concentrations in maize, and the greater reduces were found in the combined utilization, and the lowest Cd concentration of shoot was appeared in Gv + BC group. The single BC addition and combined application of AMF and BC significantly increased soil pH, and reduced soil diethylenetriaminepentaacetic acid (DTPA)-extractable Cd/Pb. This study demonstrated a synergistic effect between AMF (Gv, Fm, Ri) and BC on improving maize growth and decreasing Cd/Pb accumulation in maize, and the combined use of Gv and BC brought the most pronounced effect, which could provide a feasible strategy for safe production of maize from Cd/Pb-polluted soils.



中文翻译:

丛枝菌根真菌和生物炭对玉米生长和Cd / Pb积累的影响。

进行了温室盆栽实验,以评估生物炭(BC)和丛枝菌根真菌(AMF)-莫氏漏斗形菌(Fm),疣状鸭舌草(Gv)和根瘤菌内半径(Ri)对植物生长和Cd / Pb积累的影响在5 mg Cd和300 mg Pb kg -1人工污染的土壤中生长的玉米泥。单次接种AMF和联合使用AMF和BC明显改善了玉米的P含量。此外,AMF和BC的联合使用对玉米生长产生明显的积极影响,Gv + BC组的茎生物量比对照高9.85倍。同时,单BC添加和AMF和BC的联合利用显着降低了玉米中Cd和Pb的浓度,在联合利用中降低幅度更大,Gv + BC组的芽中Cd浓度最低。单一BC的添加以及AMF和BC的联合施用显着提高了土壤的pH值,并减少了土壤二乙三胺五乙酸(DTPA)可萃取的Cd / Pb。这项研究证明了AMF(Gv,Fm,

更新日期:2020-02-16
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