Welcome to LARMAT Blog. LARMAT stands for the Department of Land Resource Management and Agricultural Technology, Faculty of Agriculture, University of Nairobi. This blog is a forum to share and communicate ideas on agricultural and rural development, and how they affect or relate to communities in Kenya and sub-Saharan Africa. It also gives useful resources for the current and future students of the Faculty of Agriculture, and Alumni as well.
Sub-Sarahan Africa is one of the poorest regions on Earth, in both living standards and soil fertility. The depleted soil has caused average yields of grain crops to stagnate at around 1 tonne per hectare since the 1960s. By contrast, yields now reach 2.5 t ha−1 in south Asia and 4.5 t ha−1 in east Asia, where chemical fertilizers have been widely adopted since the green revolution (see 'Uneven landscape'). Fertilizer use across Africa has remained at around 9 kg ha−1 of cultivated land over the past 40 years, whereas Asia uses 96 kg ha−1 of inorganic fertilizer.
The key to tackling hunger in Africa is enriching its soil. The big debate is about how to do it.