caa a22 4500 46320882X CHVBK 20180405153134.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10705-006-9063-5 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9063-5 Agroecological analysis and economic benefit of organic resources and fertiliser in till and no-till sorghum production after a 6-year fallow in semi-arid West Africa [Elektronische Daten] [Elisée Ouédraogo, Leo Stroosnijder, Abdoulaye Mando, Lijbert Brussaard, Robert Zougmoré] A field experiment was conducted in Gampela (Burkina Faso) in 2000 and 2001 to assess the impact of organic and mineral sources of nutrients and combinations thereof in optimising crop production in till and no-till systems and to assess the economic benefit of these options. The study showed that under conditions of rainfall deficiency, the use of a single organic resource at an equivalent dose of 40kgNha−1 better secured crop yield than the application of an equivalent amount as urea-N, while a combination of organic resources and fertiliser was better in increasing crop yield than the application of the same N amount in the form of urea. In a year of rainfall deficiency, a mix of organic resources and fertiliser in both till and no-till systems increased crop water use efficiency, with the result that the farmer was able to purchase only half of the normal quantity of N fertiliser to obtain a higher yield that he would have done when all of the N was supplied in the form of urea. Under conditions where soil N is deficient, an economic benefit was achieved when urea was combined with easily decomposable organic material (e.g. sheep dung); mixing the urea at a dose of 40kgNha−1 with maize straw was not sufficient in alleviating the negative interaction due to the enhanced N immobilisation. The results demonstrate that the use of N fertiliser alone was risky and that a higher yield, with the accompanying economic benefit, was scarcely achieved under the prevailing rainfall conditions. The application of soil and water conservation measures can contribute greatly to increasing the economic benefit of mineral, organic or combined organic and mineral-derived nutrient application under semi-arid conditions. Springer Science+Business Media B.V., 2006 Burkina Faso nationallicence Economic benefit nationallicence Fertiliser nationallicence Nitrogen use efficiency nationallicence Organic resources nationallicence Tillage nationallicence Water use efficiency nationallicence Ouédraogo Elisée Departement Agroecologie, Centre Ecologique Albert Schweitzer - Burkina Faso (CEAS-BF), 01 B.P. 3306, Ouagadougou 01, Burkina Faso aut Stroosnijder Leo Erosion and Soil & Water Conservation Group, Wageningen University, Nieuwe Kanaal 11, 6709 PA, Wageningen, The Netherlands aut Mando Abdoulaye Division Afrique, International Center for Soil Fertility and Agricultural Development (IFDC), B.P. 4483, Lome, Togo aut Brussaard Lijbert Department of Soil Quality, Wageningen University, P.O. Box 8005, 6700 EC, Wageningen, The Netherlands aut Zougmoré Robert Institut de l'Environnement et de Recherche Agricole (INERA), 04 B.P. 8645, Ouagadougou 04, Burkina Faso aut Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/3(2007-03-01), 245-256 1385-1314 77:3<245 2007 77 10705 https://doi.org/10.1007/s10705-006-9063-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9063-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ouédraogo Elisée Departement Agroecologie, Centre Ecologique Albert Schweitzer - Burkina Faso (CEAS-BF), 01 B.P. 3306, Ouagadougou 01, Burkina Faso aut NATIONALLICENCE 700 1- Stroosnijder Leo Erosion and Soil & Water Conservation Group, Wageningen University, Nieuwe Kanaal 11, 6709 PA, Wageningen, The Netherlands aut NATIONALLICENCE 700 1- Mando Abdoulaye Division Afrique, International Center for Soil Fertility and Agricultural Development (IFDC), B.P. 4483, Lome, Togo aut NATIONALLICENCE 700 1- Brussaard Lijbert Department of Soil Quality, Wageningen University, P.O. Box 8005, 6700 EC, Wageningen, The Netherlands aut NATIONALLICENCE 700 1- Zougmoré Robert Institut de l'Environnement et de Recherche Agricole (INERA), 04 B.P. 8645, Ouagadougou 04, Burkina Faso aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/3(2007-03-01), 245-256 1385-1314 77:3<245 2007 77 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer