Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1017/S001447971400060X |
RESTORING CROPLAND PRODUCTIVITY AND PROFITABILITY IN NORTHERN ETHIOPIAN DRYLANDS AFTER NINE YEARS OF RESOURCE-CONSERVING AGRICULTURE | |
Araya, Tesfay1,2; Nyssen, Jan3; Govaerts, Bram4; Baudron, Frederic5; Carpentier, Louise6; Bauer, Hans7; Lanckriet, Sil3; Deckers, Jozef7; Cornelis, Wim M.6 | |
通讯作者 | Araya, Tesfay |
来源期刊 | EXPERIMENTAL AGRICULTURE
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ISSN | 0014-4797 |
EISSN | 1469-4441 |
出版年 | 2016 |
卷号 | 52期号:2页码:165-187 |
英文摘要 | Long-term in situ soil and water conservation experiments are rare in sub-Saharan Africa, particularly in Eastern Africa. A long-term experiment was conducted (2005-2013) on a Vertisol to quantify the impacts of resource-conserving agriculture (RCA) on runoff, soil loss, soil fertility and crop productivity and economic profitability in northern Ethiopia. Two RCA practices were developed from traditional furrow tillage practices: (i) derdero+ (DER+) and terwah+ (TER+). DER+ is a furrow and permanent raised bed planting system, tilled once at planting time by refreshing the furrow and 30% of crop residue is retained. TER+ is ploughed once at planting, furrows are made at 1.5 m intervals and 30% crop residue is retained. The third treatment was a conventional tillage (CT) with a minimum of three tillage operations and complete removal of crop residues. Wheat, teff, barley and grass pea crops were grown in rotation. Runoff, and soil and nutrient loss were measured in plastic sheet-lined collector trenches. Significantly different (P < 0.05) runoff coefficients (%) and soil losses (t ha(-1)) averaged over 9 yrs were 14 and 3, 22 and 11 and 30 and 17 for DER+, TER+ and CT, respectively. Significant improvements in crop yield and gross margin were observed after a period of three years of cropping This study demonstrated that RCA systems in semi-arid agro-ecosystems constitute a field rainwater conservation and soil fertility improvement strategy that enhances crop productivity and economic profitability. Adoption of RCA systems (DER+ and TER+) in the study area requires further work to improve smallholder farmers’ awareness on benefits, to guarantee high standards during implementation and to design appropriate weed management strategies. |
类型 | Article |
语种 | 英语 |
国家 | South Africa ; Ethiopia ; Belgium ; Mexico |
收录类别 | SCI-E |
WOS记录号 | WOS:000378152200002 |
WOS关键词 | CONSERVATION AGRICULTURE ; LAND MANAGEMENT ; TILLAGE ; HIGHLANDS ; EFFICIENCY ; AFRICA |
WOS类目 | Agronomy |
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/2XILL650/192910 |
作者单位 | 1.Univ Ft Hare, Dept Agron, PBX1314, ZA-5700 Alice, South Africa; 2.Mekelle Univ, Dept Crop & Hort Sci, POB 231, Mekelle, Ethiopia; 3.Univ Ghent, Dept Geog, Krijgslaan 281 S8, B-9000 Ghent, Belgium; 4.CIMMYT, Int Maize & Wheat Improvement Ctr, AP 6-641, Mexico City 06600, DF, Mexico; 5.CIMMYT, Int Maize & Wheat Improvement Ctr, POB 5689, Addis Ababa, Ethiopia; 6.Univ Ghent, Dept Soil Management, Coupure Links 653, B-9000 Ghent, Belgium; 7.Katholieke Univ Leuven, Dept Earth & Environm Sci, Celestijnenlaan 200E, B-3001 Heverlee, Belgium |
推荐引用方式 GB/T 7714 | Araya, Tesfay,Nyssen, Jan,Govaerts, Bram,et al. RESTORING CROPLAND PRODUCTIVITY AND PROFITABILITY IN NORTHERN ETHIOPIAN DRYLANDS AFTER NINE YEARS OF RESOURCE-CONSERVING AGRICULTURE[J],2016,52(2):165-187. |
APA | Araya, Tesfay.,Nyssen, Jan.,Govaerts, Bram.,Baudron, Frederic.,Carpentier, Louise.,...&Cornelis, Wim M..(2016).RESTORING CROPLAND PRODUCTIVITY AND PROFITABILITY IN NORTHERN ETHIOPIAN DRYLANDS AFTER NINE YEARS OF RESOURCE-CONSERVING AGRICULTURE.EXPERIMENTAL AGRICULTURE,52(2),165-187. |
MLA | Araya, Tesfay,et al."RESTORING CROPLAND PRODUCTIVITY AND PROFITABILITY IN NORTHERN ETHIOPIAN DRYLANDS AFTER NINE YEARS OF RESOURCE-CONSERVING AGRICULTURE".EXPERIMENTAL AGRICULTURE 52.2(2016):165-187. |
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