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Revisiting the 2006 Abuja Fertilizer Declaration with Nitrogen use efficiency and yield-gap lenses
Tuesday, 2024/12/31 | 08:18:14

CGIAR Dec. 30 2024

 

In 2006, the Abuja Fertilizer Declaration was created to bring attention to soil fertility and crop productivity across Africa for food self-sufficiency. The outcome was a recommendation for the increase of fertilizer use from the current practice for Sub-Saharan Africa (SSA) to achieve food sufficiency and improve soil fertility status.

 

Since then, research on the progress to meet these goals has shown positive fertilizer uptake. However, there is room for improvement in the efficiency of application, for instance, implementing the 4R Nutrient Stewardship – right source, right rate, right time, and right place – that guide farmers to the management practices that help keep nutrients on and in the field.

 

Mid this year, the Environmental Health and Biodiversity Impact Area Platform (EHBIAP) brought together multidisciplinary experts and scientists at the Africa Fertilizer and Soil Health Conference in Nairobi, Kenya, to assess one important aspect of the 2006 Abuja Fertilizer Declaration: Nitrogen use efficiency (NUE) and yield-gaps.

 

Nitrogen is a crucial nutrient in soils for agricultural productivity, and NUE is an important metric that measures how well plants use nitrogen for biomass production. Knowing NUE levels greatly helps assess soil degradation and fertilizer performance, aiding farmers in creating sustainable farming and enhancing agricultural productivity.

 

A case study in the Lake Victoria Basin for maize showed that no farmer has been able to achieve the desired level of NUE. The gap in knowledge and data collection of NUE have hindered optimal care for soils and efficient use of fertilizer nutrients. Hence, more knowledge and capacity sharing would be beneficial between farming communities to find the effective level of management and fertilizer use.

 

See https://www.cgiar.org/news-events/news/revisiting-the-2006-abuja-fertilizer-declaration-with-nitrogen-use-efficiency-and-yield-gap-lenses/

 

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