您好，欢迎访问黑龙江省农业科学院 机构知识库！
黑龙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Evolution over years of structural characteristics of humic acids in Black Soil as a function of various fertilization treatments

文献类型： 外文期刊

作者： Zhang, Jiuming 1 ; An, Tingting 2 ; Chi, Fengqin 1 ; Wei, Dan 3 ; Zhou, Baoku 1 ; Hao, Xiaoyu 1 ; Jin, Liang 1 ; Wang, Ji 1 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Inst Soil & Fertilizer & Environm Resources, Key Lab Soil Environm & Plant Nutr Harbin, Heilongjiang Acad Agr Sci Postdoctoral Programme, Harbin 150086, Heilongjiang, Peoples R China

2.Shenyang Agr Univ, Coll Land & Environm, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Shenyang 100866, Liaoning, Peoples R China

3.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr & Resources, Beijing 100097, Peoples R China

关键词： Black soil; Humic acid; Long-term fertilization; Structural characteristics

期刊名称：JOURNAL OF SOILS AND SEDIMENTS （ 影响因子：3.308； 五年影响因子：3.586 ）

ISSN： 1439-0108

年卷期： 2019 年 19 卷 4 期

页码：

收录情况： SCI

摘要： Purpose Humic substances are the relatively stable and recalcitrant pool of soil organic carbon in the agricultural system. Humic acid (HA) is an active part of soil humic substances. However, little information exists on how structural characteristics of HA evolved with fertilization years in Black Soil. Materials and methods Soil samples were collected in 1997, 2002, 2008, and 2012 from the Long-term Fertilization Station of Black Soil. The methods of C-13-nuclear magnetic resonance spectroscopy, elemental composition analysis, and infrared spectroscopy were employed to analyze the structure of HA. Results and discussionLong-term fertilization had no significant (P>0.05) effect on the ratio of O and S to C in HA. The ratio of H to C in HA increased with fertilization years after the application of organic manure (M) single or combined with chemical NPK fertilizers. The ratios of aliphatic C to aromatic C, and alkyl C to O-alkyl C in soil HA increased by 7.72% and 20.3%, respectively, in MNPK and M treatments, whereas NPK treatment declined the ratio of aliphatic C to aromatic C by 2.67% compared with CK treatment. Conclusions The HA structure tends to become aliphatic and simplified with years of organic manure combined with NPK fertilizers. To save costs, organic manure was only applied once within the period of crop rotation and was combined with NPK every year to satisfy crop demands for soil nutrients.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：黑龙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台