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dc.contributorMuller, Bertranden_US
dc.contributorGuissé, Aliouen_US
dc.contributorAdam, Myriamen_US
dc.creatorGanyo, Komlaen_US
dc.identifier.citationKomla Ganyo, Bertrand Muller, Aliou Guissé, Myriam Adam. (16/7/2018). Fertilization Strategies Based on Climate Information to Enhance Food Security Through Improved Dryland Cereals Production, in "Handbook of Climate Change Resilience". Germany: Springer.en_US
dc.description.abstractRainfall uncertainty and nutrient deficiency affect sorghum production in Sahel. This study aimed at (i) determining the responses (varieties*water*nitrogen) of various West-African sorghum (Sorghum bicolor L. Moench) varieties to the application of fertilizer (NPK and urea) at selected growing stages according to water regime (irrigated or not, different rainfall patterns) and (ii) simulating them to define alternative fertilization strategies. This chapter proposes alternative fertilization strategies in line with rainfall patterns. Split plot experiments with four replications were carried out in two locations (Senegal), with four improved sorghum varieties (Fadda, IS15401, Soumba and 621B). Treatments were T1, no fertilizer; T2 = 150 kg/ha of NPK (15-15-15) at emergence +50 kg/ha of urea (46%) at tillering +50 Kg/ha of urea at stem extension; T3 = half rate of T2 applied at the same stages; T4 = 150 kg/ha of NPK + 50 kg/ha of urea at stem extension +50 kg/ha of urea at heading, and T5 = half rate of T4 applied at the same stages. Plant height, leaf number, grain yield, and biomass were significantly affected by the timing and rate of fertilizers. Grain yield were affected by water*nitrogen and nitrogen*variety interactions. It varied from 2111 to 261 kg/ha at “Nioro du Rip” and from 1670 to 267 kg/ha at “Sinthiou Malème”. CERES-Sorghum model overestimated late fertilizer grain yields. To achieve acceptable grain yield, fertilizers application should be managed regarding weather.en_US
dc.subjectfertilization strategiesen_US
dc.subjectclimate informationen_US
dc.titleFertilization Strategies Based on Climate Information to Enhance Food Security Through Improved Dryland Cereals Productionen_US
dc.typeBook Chapteren_US
cg.creator.idAdam, Myriam: 0000-0002-8873-6762en_US
cg.subject.agrovocfood securityen_US
cg.contributor.centerInstitut Togolais des Recherches Agronomiques - ITRAen_US
cg.contributor.centerRegional Study Centre for Improving Adaptation to Drought - CERAASen_US
cg.contributor.centerThe French Agricultural Research Center for International Development - CIRADen_US
cg.contributor.centerUniversité Cheikh Anta Diop de Dakaren_US
cg.contributor.centerThe French Agricultural Research Center for International Development, UMR: Genetic Improvement and Adaptation of Mediterranean and Tropical Plants - CIRAD - UMR AGAPen_US
cg.contributor.centerCentre National de Recherche Scientifique et Technologique, Institut de l'Environement et de Recherche Agricole - CNRST- INERAen_US
cg.contributor.centerInternational Crops Research Institute for the Semi-Arid Tropics - ICRISATen_US
cg.contributor.crpCGIAR Research Program on Grain Legumes and Dryland Cereals - GLDCen_US
cg.contributor.funderCGIAR System Organization - CGIARen_US
dc.identifier.statusOpen accessen_US

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