Impacts of chicken manure and peat-derived biochars and inorganic P alone or in combination on phosphorus fractionation and maize growth in an acidic ultisol  

作　　者：Muhammad Aqeel Kamran Ren-Kou Xu Jiu-yu Li Jung Jiang Ren-Yong Shi 

机构地区：[1]State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,P.O.Box 821,Nanjing,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Biochar》2019年第3期283-291,共9页生物炭（英文）

基　　金：This study was supported by the National Key Research and Development of China(No.2016YFD0200302).

摘　　要：The forms of phosphorus(P)in animal manure and peat are different from synthetic P fertilizers and will affect soil P fractions when they are used as P amendments.Effects of chicken manure(CMB)and peat(PB)derived biochars(CMB and PB)alone or in combination with P fertilizer(KH_(2)PO_(4))and rock phosphate(RP)on plant/soil health and soil P fractions in an acidic ultisol were examined with greenhouse pot experiments.The total P rate was constant at 120 mg kg^(−1) in all treatments.Soil P fractions,P uptake,and maize growth were determined after 56 days.Application of CMB combined with P fertilizer or alone significantly increased soil pH,water extractable and relatively labile P,dry matter yield of maize,chlorophyll contents in maize leaves,while decreasing the Fe and Al binding P.Moreover,sole application of CMB and PB showed greater effects than application of P fertilizer alone regarding plant growth and P fractionation.Integration of syn-thetic inorganic P sources with CMB or sole application of CMB is more beneficial than application of inorganic P sources to improve plant growth and P availability.

关 键 词：Acidic soil Manure-derived biochar Peat-derived biochar Inorganic P fertilizer P fractions Plant P uptake 

分 类 号：R74[医药卫生—神经病学与精神病学]