Sustainable water management in African agriculture

By Katrin Glatzel

Credit: Katrin Glatzel, 2015 (Senegal)

In sub-Saharan Africa (SSA) where agriculture is predominantly rainfed, farmers’ access to water is often limited based on seasonal variation. Yet water scarcity in the region is not necessarily caused by a physical lack of water, but rather by an ‘economic water scarcity’. This implies that the necessary public investments in water resources and infrastructure are not substantial enough to meet water demands in an area where people do not have the means to make use of water sources on their own. In fact, in many parts of SSA there is plenty of water available. However, groundwater resources, such as aquifers, remain a relatively abundant yet underused resource, with less than 5% of the water used for irrigation coming from groundwater.

The challenge is therefore to increase the amount of available water that is ‘harvested’ for crop growth. Such water harvesting can be done at the field, farm or watershed level. In some places, there is a potential for groundwater extraction using boreholes. And research by the International Food Policy Research Institute (IFPRI) has shown that motor pumps have the potential to expand the amount of agricultural land irrigated during the dry season to 30 million hectares — four times the current area. There is urgent need to sustainably increase the amount of irrigation from the current 6% of arable land. Until then an estimated 200 million people in SSA – that is 18% of the continent’s population – face serious water shortages.

Furthermore, climate change and a growing population continue to pose additional challenges to water management in agriculture. Prolonged periods of drought in many parts of SSA are becoming increasingly frequent. This increases pressures on valuable water resources and agricultural irrigation. In response, water conservation policies, strategies, and activities such as water harvesting, are ever more important to manage and protect fresh water as a sustainable resource to meet current and future human demands.

Dr Akinwumi Adesina: Building resilience in Nigeria

On 4th of March 2013, the 30th edition of the Brussels Development Briefing took place, the topic being “Agricultural resilience in the face of crisis and shocks”. Organized by CTA in collaboration with the African, Caribbean and Pacific Group of States (ACP) Secretariat, the EC/DEVCO, Concord, and the International Food Policy Research Institute (IFPRI), and hosted by the European Economic and Social Committee (EESC), in Brussels, international experts and agriculturalists, including Gordon Conway discussed the concept of resilience and proven approaches to achieving it.

The keynote speaker, Dr. Akinwumi Adesina, Honourable Minister of Agriculture of Nigeria, outlined his plans for increasing resilience and boosting agricultural productivity. He began by reminding us how susceptible we all are to the forces of nature be they climate, health, market or environment related. Food security is a key component of ensuring humans, households and systems are resilient to the impact of stresses and shocks.

Nigeria, in order to build resilience and tackle food insecurity through raising agricultural productivity and food production, launched the Agricultural Transformation Agenda in 2012. The overall goals are to add 20 Million tons (Mt) of food to the domestic food supply by 2015; to create 3.5 million jobs and to become a net exporter of food.

Dr Adesina outlined six policy areas for improving resilience.

1)    Access to affordable inputs.

Nigeria launched a database of farmers for the country, registering 4.2 million farmers in 2012 and hoping to expand to 10 million this year. The aim is to know the country’s farmers better in order to target policies to support them.

Also launched in 2012 was the Growth Enhancement Support (GES) through which farmers receive subsidised seeds and fertiliser via vouchers on their mobile phones. The government was taken out of the procurement and distribution of these inputs, ending corruption in the sector. In the first three months, 1.2 million farmers received subsidised inputs through their mobile phones and the target is to reach 5 million in 2013. The GES has incentivised seed and fertiliser companies to develop value chains to supply directly to the farmer and in 2012 fertiliser and seed companies sold $100 million worth of fertiliser and $10 million worth of seeds directly to farmers, as opposed to the government. Increasing accessibility to farm inputs, in the words of Dr Adesina, unleashed an agricultural revolution, and food production rose by 8.1 Mt in 2012.