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Effects of organic amendments on soil carbon sequestration in paddy fields of subtropical China
Authors:Wenju Zhang  Minggang Xu  Xiujun Wang  Qinhai Huang  Jun Nie  Zuzhang Li  Shuanglai Li  Seon Woong Hwang  Kyeong Bo Lee
Institution:(1) Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, People’s Republic of China;(2) Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830000, People’s Republic of China;(3) Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20740, USA;(4) Jiangxi Institute of Red Soils, National Engineering and Technology Research Center for Red Soil Improvement, Jinxian, 331717, People’s Republic of China;(5) Soil and Fertilizer Institute of Hunan Province, Changsha, 410125, People’s Republic of China;(6) Institute of Soils and Fertilizers and Agricultural Resources, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, People’s Republic of China;(7) Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan, 430064, People’s Republic of China;(8) Department of Rice and Winter Cereal Crop, National Institute of Crop Science, RDA 381, Songhag-dong, Iksan, 570-080, South Korea;
Abstract:

Purpose  

Although organic amendments have been recommended as one of the practices for crop production and soil carbon sequestration, little has been done to evaluate soil organic carbon (SOC) dynamics following long-term application of organic amendments. The objective of this research were to (1) assess the effect of long-term organic amendments on SOC dynamics in rice-based systems; (2) evaluate the relationship between soil carbon sequestration and carbon input based on various mineral and organic fertilization treatments.
Keywords:
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