The Next Green Revolution is Here.
Science prevented the last food crisis. Can it save us again in the Next Green Revolution? Africa’s cropland biomass occupies ~38% of the photo synthetically active land area of the African continent (~19.8 M km2) and encompasses more than 90% of its rural population living in 54 countries.
We must concentrate on the biomass of Africa that include forests and rangelands, but exclude deserts
A big, risky decision for small holder farmers is what type and how much fertilizer to apply to their crops. There is lot of uncertainty about how the crops will respond, with a risk that the farmers will even lose when they harvest and sell the produce. Testing the soil beforehand and knowing how plants will respond can play an important role in reducing this risk. But the high cost and lack of access to testing services have been major bottlenecks for farmers in developing countries.
Similarly, planners in governments, the private sector and non-governmental organizations who are working out what to supply to small holder farmers are also faced with large uncertainties on what types and combinations of inputs to supply and where, in relation to the local soils. For example, a number of agencies in Africa are designing fertilizer blending and liming programs and so need to know how strongly acid soils are and what soil micro nutrients may be limiting in different areas. Existing soil maps do not provide up-to-date information on specific soil properties that are needed to guide such decisions. Continue reading NEXT GREEN REVOLUTION 2