Dear Rolf, thanks for your comments. The World Bank has considerable experience in integrated soil fertility management. Our ISFM interventions involves Choice of varieties that are nutrient and water efficient, Use of organic materials – crop residues and manure to increase fertilizer use efficiency, Factoring in other nutrient sources – atmospheric deposition, BNF, and irrigation before arriving at inorganic fertilizer application rates, and M atching fertilizer application with crop uptake requirements at different growth stages in time, space, type and quantity. As an example, in an effort to revolutionize fertilizer use, we are currently partnering with Ethiopia and other development agencies in a National Fertilizer Blending Program ( https://www.ata.gov.et/transforming-the-use-of-fertilizer-in-ethiopia-lau... ) Since fertilizer was introduced to Ethiopia, fertilizer use has been limited to diammonium phosphate (DAP) and Urea. However, recent research and soil tests reveal that Ethiopian soils are deficient in other nutrients that are not provided by DAP and Urea. The fertilizer blending project is addressing these deficiencies to improve food security in the country.
Dear Rolf, thanks for your comments. The World Bank has considerable experience in integrated soil fertility management. Our ISFM interventions involves Choice of varieties that are nutrient and water efficient, Use of organic materials – crop residues and manure to increase fertilizer use efficiency, Factoring in other nutrient sources – atmospheric deposition, BNF, and irrigation before arriving at inorganic fertilizer application rates, and M atching fertilizer application with crop uptake requirements at different growth stages in time, space, type and quantity. As an example, in an effort to revolutionize fertilizer use, we are currently partnering with Ethiopia and other development agencies in a National Fertilizer Blending Program ( https://www.ata.gov.et/transforming-the-use-of-fertilizer-in-ethiopia-lau... ) Since fertilizer was introduced to Ethiopia, fertilizer use has been limited to diammonium phosphate (DAP) and Urea. However, recent research and soil tests reveal that Ethiopian soils are deficient in other nutrients that are not provided by DAP and Urea. The fertilizer blending project is addressing these deficiencies to improve food security in the country.