Arid
DOI10.1016/j.still.2005.11.004
Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa
Ouedraogo, Elisee; Mando, Abdoulaye; Stroosnijder, Leo
通讯作者Ouedraogo, Elisee
来源期刊SOIL & TILLAGE RESEARCH
ISSN0167-1987
出版年2006
卷号91期号:1-2页码:57-67
英文摘要

Tillage, organic resources and fertiliser effects on soil carbon (C) dynamics were investigated in 2000 and 2001 in Burkina Faso (West Africa). A split plot design with four replications was laid-out on a loamy-sand Ferric Lixisol with till and no-till as main treatments and fertiliser types as sub-treatments. Soil was fractionated physically into coarse (0.250-2 mm), medium (0.053-0.250 mm) and fine fractions (< 0.053 mm). Particulate organic carbon (POC) accounted for 47-53% of total soil organic carbon (SOC) concentration and particulate organic nitrogen (PON) for 30-37% of total soil nitrogen concentration. The POC decreased from 53% of total SOC in 2000 to 47% of total SOC in 2001. Tillage increased the contribution of POC to SOC. No-till led to the lowest loss in SOC in the fine fraction compared to tilled plots. Well-decomposed compost and single urea application in tilled as well as in no-till plots induced loss in POC. Crop N uptake was enhanced in tilled plots and may be up to 226 kg N ha(-1) against a maximum of 146 kg N ha(-1) in no-till plots. Combining crop residues and urea enhanced incorporation of new organic matter in the coarse fraction and the reduction of soil carbon mineralisation from the fine fraction. The PON and crop N uptake are strongly correlated in both till and no-till plots. Mineral-associated N is more correlated to N uptake by crop in tilled than in no-till plots. Combining recalcitrant organic resources and nitrogen fertiliser is the best option for sustaining crop production and reducing soil carbon decline in the more stabilised soil fraction in the semi-arid West Africa. (c) 2005 Published by Elsevier B.V.


英文关键词organic resources particulate organic matter tillage soil physical fractionation crop N uptake Burkina Faso
类型Article
语种英语
国家Burkina Faso ; Netherlands ; Togo
收录类别SCI-E
WOS记录号WOS:000241487100007
WOS关键词MATTER FRACTIONS ; CRUSTED SOIL ; LAND-USE ; PARTICULATE ; PHOSPHORUS ; REHABILITATION ; MANAGEMENT ; QUALITY ; SYSTEMS ; MULCH
WOS类目Soil Science
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/153052
作者单位(1)Albert Schweitzer Ctr Ecol, CEAS, Ouagadougou 01, Burkina Faso;(2)Univ Wageningen & Res Ctr, Dept Soil Qual, NL-6700 EC Wageningen, Netherlands;(3)INERA, Ouagadougou 01, Burkina Faso;(4)Int Ctr Soil Fertil & Agr Dev IFDC, Div Afrique, Lome, Togo;(5)Univ Wageningen & Res Ctr, Dept Eros & Soil, NL-6709 PA Wageningen, Netherlands;(6)Univ Wageningen & Res Ctr, Water Conservat Grp, NL-6709 PA Wageningen, Netherlands
推荐引用方式
GB/T 7714
Ouedraogo, Elisee,Mando, Abdoulaye,Stroosnijder, Leo. Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa[J],2006,91(1-2):57-67.
APA Ouedraogo, Elisee,Mando, Abdoulaye,&Stroosnijder, Leo.(2006).Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa.SOIL & TILLAGE RESEARCH,91(1-2),57-67.
MLA Ouedraogo, Elisee,et al."Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa".SOIL & TILLAGE RESEARCH 91.1-2(2006):57-67.
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