作者
Jia Liu, Xiaofen Chen, Daming Li, Changxu Xu, Meng Wu, Ming Liu, Pengfa Li, Guilong Li, Taolin Zhang, Zhongpei Li
发表日期
2020/7
期刊
Journal of Soils and Sediments
卷号
20
页码范围
2761-2770
出版商
Springer Berlin Heidelberg
简介
Purpose
There have been many studies about the effects of long-term fertilizations on crop yields and soil organic carbon. However, little attention has been paid to the response of soil dissolved organic carbon (DOC) to fertilization practices. The aims of this work were to investigate the variations of the content and the chemical composition of soil DOC under long-term different fertilizations and to evaluate their correlations with maize yields.
Materials and methods
A long-term fertilization experiment under a double maize cropping system was established in 1986 in acidic Ultisols of southern China. Soil samples were collected in April 2014 from the following ten treatments: (1) CK (non-fertilization), (2) N (only N fertilization), (3) P (only P fertilization), (4) K (only K fertilization), (5) NP (N and P fertilization), (6) NK (N and K fertilization), (7) NPK (N, P, and K fertilization), (8) HNPK (double doses of NPK fertilization …
学术搜索中的文章
J Liu, X Chen, D Li, C Xu, M Wu, M Liu, P Li, G Li… - Journal of Soils and Sediments, 2020