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Eco-friendly production of biochar via conventional pyrolysis: Application of biochar and liquefied smoke for plant productivity and seed germination

文献类型： 外文期刊

作者： Abdelhafez, Ahmed A. 1 ; Zhang, Xu 1 ; Zhou, Li 1 ; Cai, Min 1 ; Cui, Naxin 1 ; Chen, Guifa 1 ; Zou, Guoyan 1 ; Abbas, Mo 1 ;

作者机构： 1.Shanghai Acad Agr Sci SAAS, Ecoenvironm Protect Res Inst, Shanghai, Peoples R China

2.New Valley Univ, Fac Agr, Soils & Water Dept, Kharga Oasis, The New Valley, Egypt

3.Acad Sci Res & Technol, Natl Comm Soil Sci, Cairo, Egypt

4.Benha Univ, Fac Agr, Soils & Water Dept, Banha, Egypt

5.Agr Res Ctr ARC, Soils Water & Environm Res Inst SEWRI, Giza, Egypt

6.Quaid I Azam Univ, Fac Biol Sci, Dept Environm Sci, Islamabad 45320, Pakistan

7.Taif Univ, Coll Sci, Dept Chem, POB 11099, At Taif 21944, Saudi Arabia

关键词： Biochar; Nutshell; Date palm; Sand soil; Smokes; Brassica chinensis

期刊名称：ENVIRONMENTAL TECHNOLOGY & INNOVATION （ 影响因子：3.356； 五年影响因子：3.404 ）

ISSN： 2352-1864

年卷期： 2021 年 22 卷

页码：

收录情况： SCI

摘要： Conventional pyrolysis of agricultural wastes may emit considerable amounts of greenhouse gases that affect negatively the surrounding environment. A trial was done to capture the emitted gases through connecting a small water jacket with the pyrolysis unit. This plant was then used for production of biochars from two waste materials i.e. nutshell (NS-BC) and date-palm seed (DP-BC). The biochars manufactured from the aforementioned waste materials were then evaluated for their applicability vs pig manure (each amendment was applied at rates of 1, 2.5, 5 and 10%; w/w) to improve growth of Brassica chinensis grown on a sandy soil under greenhouse conditions. Collected liquefied smokes were also tested for enhancing germination of Lactuca sativa (lettuce) seeds using different concentrations (0%-5%, v/v). Results revealed that produced biochars decreased significantly soil pH where the highest reduction (14.30%) was occurred due to addition of 10% DP-BC. Moreover, NS-BC and DP-BC decreased significantly soil salinity from 0.21 dS m(-1) (control) to 0.13 and 0.14 dS m(-1), respectively; on the other hand, pig manure raised significantly soil salinity (10% application rate). Residual organic matter was higher in biochar amended soils than its corresponding values in pig manure treated ones. Generally, all investigated amendments improved considerably the uptake of nitrogen, phosphorus, and potassium. Moreover, they increased chlorophyll pigments in leaves and enhanced plant growth parameters upon their application at rates up to 2.5% with superiority for NS-BC versus DP-BC. Liquefied smoke also improved lettuce seed germination and growth, but only up to 0.25% application rate. Our results highlighted the success of the adopted technique for recycling NS and DP wastes and sustaining the environment. (C) 2021 Elsevier B.V. All rights reserved.

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