Amino Compounds in Poultry Litter,Litter-Amended Pasture Soils and Grass Shoots

作     者：Z.Q.HE Z.N.SENWO H.X.ZOU I.A.TAZISONG D.A.MARTENS 

作者机构：USDA-ARSSouthern Regional Research Center Department of Biological and Environmental SciencesAlabama A&M University Department of Chemical and Biological Engineeringthe University of Maine USDA-ARSSouthwest Watershed Research Center 

出 版 物：《Pedosphere》 (土壤圈（英文版）)

年 卷 期：2014年第24卷第2期

页      面：178-185页

核心收录：

学科分类：09[农学] 0818[工学-地质资源与地质工程] 0903[农学-农业资源与环境] 0901[农学-作物学] 

主　　题：土壤样品 氨基化合物 家禽垫料 草芽 牧场 应用程序 修订 ACS 

摘      要：Amino compounds(ACs),i.e.,amino acids and amino sugars,are the major forms of organic nitrogen(N)in animal manure and soil.To increase our understanding on the effect of long-term poultry litter(PL)application on soil AC pools and turnover,in this study,we determined the contents of 21 ACs in 23 PL samples,15 soil samples collected from 0–20,20–40,and 40–60 cm layers of five pasture plots with 0,5,10,15 and 20 years of PL applications,and 5 grass shoot samples grown on these pasture fields.The contents of 21 ACs were simultaneously determined by methanesulfonic acid hydrolysis/extraction and anion chromatography-pulsed amperometry.PL application increased soil total and individual AC contents with a distribution pattern similar to that of AC in PL.The highest AC-N concentrations were observed in the soils with 10-or 15-year PL applications,inconsistent with the order of annual application rates or cumulative applied PL amounts.Application of PL increased the AC contents in grass shoots whereby the highest increase of most ACs was with the shoots from the fields that received PL for 5 years.These observations suggested that both freshly applied and residual PL had contributions to the soil AC-N,and that PL application also accelerated AC-N transformation in soil.