Fertilizer and soil conditioner value of broiler manure biochars

作     者：Riikka Keskinen Jari Hyvaluoma Lauri Sohlo Hanna Help Kimmo Rasa 

作者机构：Natural Resources Institute Finland(Luke)Tietotie 431600 JokioinenFinland Present Address:Hame University of Applied SciencesMustialantie 10531310 MustialaFinland Present Address:Pellon Group OyYrittajantie 1062375 YliharmaFinland Department of PhysicsFaculty of ScienceUniversity of Helsinki00014 HelsinkiFinland 

出 版 物：《Biochar》 (生物炭（英文）)

年 卷 期：2019年第1卷第3期

页      面：259-270页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082902[工学-木材科学与技术] 08[工学] 0818[工学-地质资源与地质工程] 0829[工学-林业工程] 0903[农学-农业资源与环境] 0706[理学-大气科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0901[农学-作物学] 

基　　金：This work was supported by the Nutrient Recycling Pilot Programme coordinated by the Centre for Economic Development Transport and the Environment Finland.Hanna Help was supported by the Academy of Finland(Grant 1295696) 

主　　题：Poultry manure Pyrolysis Soil amendment Pore structure Phosphorus availability 

摘      要：Pyrolysis is an option for enhancing the sustainable management of broiler manure surpluses by producing a concentrated,hygienic char product with a fertilizer and soil conditioner *** this study,the impacts of pyrolysis conducted at 350,400 and 450℃ on total nutrient and harmful element concentrations in biochars derived from peat-bedded broiler manure were *** was placed on the availability of phosphorus(P).In addition,the pore structures of these biochars were explored using X-ray microtomography and image *** pyrolysis,35-50%,40-55%and 35-45%of the original carbon,nitrogen and sulfur contents,respectively,of the feedstock biomass were lost as *** elements,including P,were concentrated in the *** water-extractable P was found to be converted to less labile forms due to charring,the concentration effect and notable increase in sodium bicarbonate-extractable P rendered broiler manure biochars richer in total labile P in comparison with feedstock manure(7.1,10.0,11.1 and 14.8 g labile P kg^(−1)in feedstock and biochars produced at 350,400 and 450℃,respectively).The pore volume of the micrometer-scale porosity of the broiler manure biochar was comparable to that found earlier in wood-based *** comparison with wood-based biochars,the pore structure of broiler manure biochars was more versatile,and the pore size distribution was ***,part of the porosity was too large to store plant-available water,which may reduce the potential of broiler manure biochars to improve soil water storage capacity.