Biochar influences the cane fields’microbiota and the development of pre-sprouted sugarcane seedlings  

作　　者：Bruna Cristina Pinto Adriana Barboza Alves Osania Emerenciano Ferreira Gustavo Henrique Gravatim Costa Magno Andréde Oliveira Augusto Cesar da Silva Bezerra Alan Rodrigues Teixeira Machado 

机构地区：[1]Postgraduate Program in Environmental Sciences,State University of Minas Gerais,Frutal Unity,Frutal,Minas Gerais,38202-436,Brazil [2]Department of Agricultural and Biological Sciences,State University of Minas Gerais,Frutal Unity,Frutal,Minas Gerais,38208-436,Brazil [3]Postgraduate Program in Geotechnical Engineering,Federal University of Ouro Preto,Ouro Preto,Minas Gerais,35400-000,Brazil [4]Department of Transport Engineering,Federal Center for Technological Education of Minas Gerais,Belo Horizonte,Minas Gerais,30421-169,Brazil [5]Department of Exact Sciences,State University of Minas Gerais,João Monlevade Unity,João Monlevade,Minas Gerais,35930-314,Brazil

出　　处：《Waste Disposal and Sustainable Energy》2023年第1期75-88,共14页废弃物处置与可持续能源（英文）

基　　金：FAPEMIG,APQ-02349-21,Alan Machado.

摘　　要：This research investigates the soil conditioning effect of sugar cane fields with biochar produced from sugarcane bagasse.Its influence on the physicochemical and microbiological conditions of the soil and the agronomic performance of sugarcane seedlings was verified.To this end,the biochar from sugarcane bagasse was produced by pyrolysis in a double drum oven and mixed with soil at rates of 0,1%,3%,and 5%(in weight).The experiment was installed in a greenhouse with two evaluation periods(30 days and 60 days)and five replicates.Each pot received a pre-sprouted cane seedling,and the analysis of colony-forming units(bacteria and fungi),physicochemical characteristics of the soil,and growth and development of sugarcane were performed per pot.The biochar showed a high fixed carbon content(72%)and a specific surface area estimated by the adsorption of methylene blue of 50 m2 g−1.Furthermore,its structure is porous and contains important nutrients(e.g.,CaO,K2O,and P2O5).In the periods evaluated,the applications of the 3%and 5%(in weight)rates of biochar reduced most of the soil fertility parameters.However,the chemical analyses indicated that the sugarcane field soil collected already possessed high fertility.The microbiota was influenced,but only the application of the 3%(in weight)rate at 60 days after planting showed a significant positive effect on the number of bacteria forming units,with an increase of approximately 385%.On the other hand,no significant positive effect on sugarcane development was found.Therefore,biochar application in high-fertility sugarcane plantation soil did not result in gains for sugarcane development in the periods evaluated.

关 键 词：Soil BIOMETRY Microbiology Double drum oven BIOCHAR 

分 类 号：S15[农业科学—土壤学]