Desta, G and Legesse, G and Agegnehu, G and Tigabie, A and Ayalew, B and Addis, A and Getachew, T and Mangudo, D and Bazie, Z and Abathun, T and Abera, A and Dache, A and Adissie, S and Sebnie, Workat and Feyisa, T and Yakob, G and Nagaraji, S and Van Rooyen, A F and Harawa, R Validated fertilizer use at landscape scale: demand driven approach in sorghum, wheat and teff mixed farming systems in Ethiopia: A Technical Report. Technical Report. ICRISAT, Ethiopia.
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Global Research Program - Resilient Farm and Food Systems
Additional Information
The validation and piloting of landscape targeted fertilizer advisory activities are financially supported by the CGIAR Excellence in Agronomy (EIA2030) initiative led by IITA. We extend our gratitude to the Ministry of Agriculture, particularly the local demand partners, the district agriculture offices and extension agents in Basonawerana, Gozamin, West Belesa, Kewet, Lemo, Analemo, Doyogena, Bolososore, Sekoru, Bora districts. Special thanks go to NARS partners especially ARARI and SARI and the respective research centers who collaborate on the validation and piloting activities. We acknowledge participant farmers who voluntarily work with us.
Abstract
Soil nutrient management is very critical to maximize crop yield and to maintain soil health for a sustainable productivity. Decline in soil fertility and soil quality, among other factors, are major constraints to the agricultural productivity and disfunction of environmental services (Bahr, 2015). In Ethiopia, soil nutrient mining and very less replenishment of organic and inorganic resources are the recurrent problems that resulted in soil nutrient depletion. Besides, severe topsoil erosion associated with steep slope cultivation made the country one of the highest nutrient depletion rates in Africa with 41, 6 and 26 kg ha-1yr-1 of nitrogen, phosphorus and potassium, respectively (Stoorvogel and Smaling, 1990). Soil nutrient balance assessments in central Ethiopia showed that nutrient losses even worsen and reached an amount of 122 kg N, 13 kg P and 82 kg K ha-1 per year-(Haileslassie et al., 2005). In addition to the poor nutrient and organic matter status, aluminum toxicity and phosphorous fixation are other constraints in Ethiopian soils apparent in pH less than 5.5 which enhances nutrient limitations and toxicity (Agegnehu and Amede, 2017; Agegnehu et al., 2006). The state of nutrient depletion entails context specific nutrient management and fertilizer applications.
| Item Type: | Monograph (Technical Report) |
|---|---|
| Divisions: | Global Research Program - Resilient Farm and Food Systems |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Fertilizer, sorghum, Wheat, teff, mixed farming, Ethiopia |
| Subjects: | Mandate crops > Sorghum Others > Ethiopia |
| Depositing User: | Mr Ramesh MNR |
| Date Deposited: | 05 Jan 2023 04:54 |
| Last Modified: | 06 Jan 2023 12:33 |
| URI: | http://oar.icrisat.org/id/eprint/12032 |
| Links: | |
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