王忠江,王泽宇,张正,林贵英,刘卓,崔峰.生物炭对混施沼肥秸秆还田腐解特性的影响[J].农业机械学报,2018,49(7):279-285.
WANG Zhongjiang,WANG Zeyu,ZHANG Zheng,LIN Guiying,LIU Zhuo,CUI Feng.Effect of Biochar on Decomposition Characteristics of Corn Stover Presoaked with Digestate in Soil[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(7):279-285.
摘要点击次数: 1611
全文下载次数: 796
生物炭对混施沼肥秸秆还田腐解特性的影响   [下载全文]
Effect of Biochar on Decomposition Characteristics of Corn Stover Presoaked with Digestate in Soil   [Download Pdf][in English]
投稿时间:2018-01-02  
DOI:10.6041/j.issn.1000-1298.2018.07.033
中文关键词:  生物炭  秸秆  沼肥  翻埋还田  腐解率
基金项目:国家自然科学基金项目(51406032)、黑龙江省自然科学基金项目(E201406)、中央引导地方科技发展专项(ZY17C05)、黑龙江省博士后基金项目(LBH-13044Z)和教育部留学回国人员科研启动基金项目(20131792)
作者单位
王忠江 东北农业大学 
王泽宇 东北农业大学 
张正 东北农业大学 
林贵英 武汉光谷蓝焰新能源股份有限公司 
刘卓 东北农业大学 
崔峰 东北农业大学 
中文摘要:为提高秸秆与沼肥同步翻埋还田的腐解效果,在室温条件下,秸秆中混施沼肥,采用网袋法模拟翻埋还田,在105d的试验周期内,探讨在土壤中配施生物炭对秸秆与沼肥同步翻埋还田腐解的影响规律。结果表明,在土壤中配施生物炭能显著提高秸秆各指标的降解速度,且不同土壤之间玉米秸秆的降解率表现为砂土组大于壤土组,添加生物炭组大于未添加生物炭组,试验结束时,壤土组、壤土+生物炭组、砂土组、砂土+生物炭组的降解率分别为69.96%、74.63%、78.19%和79.14%;腐解前49d为秸秆各组分的快速腐解期,后期腐解速率逐渐变慢;秸秆的降解率与纤维素降解率具有显著的相关性,添加生物炭对木质素的降解具有显著的促进作用,且木质素的降解与有机碳的降解呈正相关性
WANG Zhongjiang  WANG Zeyu  ZHANG Zheng  LIN Guiying  LIU Zhuo  CUI Feng
Northeast Agricultural University,Northeast Agricultural University,Northeast Agricultural University,Wuhan Optics Valley Bluefire New Energy Co., Ltd.,Northeast Agricultural University and Northeast Agricultural University
Key Words:biochar  corn stover  digestate  burying and returning  decomposition ratio
Abstract:A great number of crop straws are produced each year in China. Among all the comprehensive utilizations of crop straw, the method of returning straw to soil has been paied attention and accepted as a recycle technology featuring with increasing the porosity of soil, improving the aggregate structure of soil and increasing the production of crops. The most important indicator to evaluate the effect of straw returning is the decomposition condition of straw. Biochar and digestate were combined as accelerants to expedite the decay of corn stover. The corn stover presoaked with digestate was buried into the soil added with biochar by mesh bag method at room temperature. The experimental process lasted 105d. The decomposition ratio of corn stover and the characteristics of cellulose, hemicellulose, lignin, organic carbon and total cumulative nitrogen were investigated systematically to achieve the effect of biochar on the decomposition characteristics of corn stover presoaked with digestate in soil. The results indicated that the biochar increased the decomposition rate of corn stover significantly. The decomposition condition of corn stover in sandy loam was better than that in loamy soil. The decomposition ratios of comparison samples were 69.96% for the corn stover in loamy soil, 74.63% for the corn stover in loamy soil added with biochar, 78.19% for the corn stover in sandy loam and 79.14% for the corn stover in sandy loam added with biochar, respectively. Furthermore, the decomposition ratio of corn stover was increased as the increase of time. The decomposition rate was fast before 49d and decreased gradually after 49d. The decomposition ratios of cellulose, hemicellulose and total cumulative nitrogen were different significantly (P<0.05). In addition, the decomposition ratio of corn stover was significantly correlated with the decomposition ratio of cellulose (P<0.05). The research result can lay a theoretical foundation for the technology development of returning straw to soil and the comprehensive utilization of biochar.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器