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Effects of straw and biochar addition on soil nitrogen, carbon, and super rice yield in cold waterlogged paddy soils of North China
Alternative TitleEffects of straw and biochar addition on soil nitrogen, carbon, and super rice yield in cold waterlogged paddy soils of North China
Cui Yuefeng1; Meng Jun1; Wang Qingxiang1; Zhang Weiming1; Cheng Xiaoyi1; Chen Wenfu1
2017
Source PublicationJOURNAL OF INTEGRATIVE AGRICULTURE
ISSN2095-3119
Volume16Issue:5Pages:1064-1074
AbstractThe additions of straw and biochar have been suggested to increase soil fertility, carbon sequestration, and crop productivity of agricultural lands. To our knowledge, there is little information on the effects of straw and biochar addition on soil nitrogen form, carbon storage, and super rice yield in cold waterlogged paddy soils. We performed field trials with four treatments including conventional fertilization system (CK), straw amendment 6 t ha(-1) (S), biochar amendment 2 t ha(-1) (C1), and biochar amendment 40 t he (C2). The super japonica rice variety, Shennong 265, was selected as the test crop. The results showed that the straw and biochar amendments improved total nitrogen and organic carbon content of the soil, reduced N2O emissions, and had little influence on nitrogen retention, nitrogen density, and CO2 emissions. The S and Cl increased NH4+-N content, and C2 increased NO3+-N content. Both S and C1 had little influence on soil organic carbon density (SOCD) and C/N ratio. However, C2 greatly increased SOCD and C/N ratio. C1 and C2 significantly improved the soil carbon sequestration (SCS) by 62.9 and 214.0% (P < 0.05), respectively, while S had no influence on SCS. C1 and C2 maintained the stability of super rice yield, and significantly reduced CH4 emissions, global warming potential (GWP), and greenhouse gas intensity (GHGI), whereas S had the opposite and negative effects. In summary, the biochar amendments in cold waterlogged paddy soils of North China increased soil nitrogen and carbon content, improved soil carbon sequestration, and reduced GHG emission without affecting the yield of super rice.
Other AbstractThe additions of straw and biochar have been suggested to increase soil fertility, carbon sequestration, and crop productivity of agricultural lands. To our knowledge, there is little information on the effects of straw and biochar addition on soil nitrogen form, carbon storage, and super rice yield in cold waterlogged paddy soils. We performed field trials with four treatments including conventional fertilization system (CK), straw amendment 6 t ha~(–1) (S), biochar amendment 2 t ha~(–1) (C1), and biochar amendment 40 t ha~(–1) (C2). The super japonica rice variety, Shennong 265, was selected as the test crop. The results showed that the straw and biochar amendments improved total nitrogen and organic carbon content of the soil, reduced N_2O emissions, and had little influence on nitrogen retention, nitrogen density, and CO_2 emissions. The S and C1 increased NH_4~+-N content, and C2 increased NO_3~–-N content. Both S and C1 had little influence on soil organic carbon density (SOCD) and C/N ratio. However, C2 greatly increased SOCD and C/N ratio. C1 and C2 significantly improved the soil carbon sequestration (SCS) by 62.9 and 214.0% (P<0.05), respectively, while S had no influence on SCS. C1 and C2 maintained the stability of super rice yield, and significantly reduced CH_4 emissions, global warming potential (GWP), and greenhouse gas intensity (GHGI), whereas S had the opposite and negative effects. In summary, the biochar amendments in cold waterlogged paddy soils of North China increased soil nitrogen and carbon content, improved soil carbon sequestration, and reduced GHG emission without affecting the yield of super rice.
KeywordDECREASING METHANE EMISSION CROP PRODUCTIVITY BLACK CARBON N2O FERTILIZER AMENDMENT CHARCOAL AVAILABILITY MANAGEMENT PYROLYSIS biochar straw paddy field nitrogen form carbon sequestration greenhouse gas emission rice yield
Indexed ByCSCD
Language英语
Funding Project[Science and Technology Consulting Program of Chinese Academy of Engineering] ; [Key Technologies R&D Program of China during the 12th Five -Year Plan period] ; [Special Fund forAgro-scientific Research in Public Interest of China] ; [Basic Research Foundation of Shenyang Science and Technology Program, China] ; [Program for Changjiang Scholars and Innovative Research Team in University, China]
CSCD IDCSCD:5991332
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/142787
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.Tieling Acad Agr Science, Tieling 112616, Peoples R China
Recommended Citation
GB/T 7714
Cui Yuefeng,Meng Jun,Wang Qingxiang,et al. Effects of straw and biochar addition on soil nitrogen, carbon, and super rice yield in cold waterlogged paddy soils of North China[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2017,16(5):1064-1074.
APA Cui Yuefeng,Meng Jun,Wang Qingxiang,Zhang Weiming,Cheng Xiaoyi,&Chen Wenfu.(2017).Effects of straw and biochar addition on soil nitrogen, carbon, and super rice yield in cold waterlogged paddy soils of North China.JOURNAL OF INTEGRATIVE AGRICULTURE,16(5),1064-1074.
MLA Cui Yuefeng,et al."Effects of straw and biochar addition on soil nitrogen, carbon, and super rice yield in cold waterlogged paddy soils of North China".JOURNAL OF INTEGRATIVE AGRICULTURE 16.5(2017):1064-1074.
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