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Fallow residue management effects on upland rice in three agroecological zones of West Africa

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Title Fallow residue management effects on upland rice in three agroecological zones of West Africa
 
Creator Akanvou, R.
Becker, M.
Chano, M.
Johnson, D.E.
Gbaka-Tcheche, H.
Touré, A.
 
Subject rice
research
 
Description Improving fallow quality in upland rice-fallow rotations in West Africa through the site-specific use of leguminous cover crops has been shown to sustain the productivity of such systems. We studied the effects of a range of residue management practices (removal, burning, mulching and incorporation) on fallow biomass and N accumulation, on weed biomass and yield response of upland rice and on changes in soil physical and chemical characteristics in 2-year field trials conducted in three agroecological zones of Côte d'Ivoire. Across fallow management treatments and agroecological zones, rice yields were on average 20–30% higher in legume than in natural fallow plots. Weed biomass was highest in the savanna zone and lowest in the bimodal forest and tended to be less following a legume fallow. Regardless of the type of fallow vegetation and agroecological zone, biomass removal resulted in the lowest rice yields that varied from 0.5 t ha–1 in the derived savanna zone to 1.5 t ha–1 in the Guinea savanna zone. Burning of the fallow vegetation significantly increased yield over residue removal in the derived savanna (0.27 t ha–1, P
 
Date 2000-09-05
2021-07-30T10:11:37Z
2021-07-30T10:11:37Z
 
Type Journal Article
 
Identifier Akanvou R., Becker M., Chano M., Johnson D.E., Gbaka-Tcheche H., Toure A.Fallow residue management effects on upland rice in three agroecological zones of West Africa.Biology and Fertility of Soils.2000, Volume 31 :501-507.
1432-0789
https://hdl.handle.net/10568/114481
https://doi.org/10.1007/s003740000199
 
Language en
 
Rights Other
Limited Access
 
Format 501-507
 
Publisher Springer
 
Source Biology and Fertility of Soils