Tag Archives: Green Revolution


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.

Low-Cost Soil AnalysisNext Green Revolution

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


The Second Green Revolution starting in Africa

Micro Irrigation, which is 95% efficient — meaning that almost all the water is applied to nurturing the plants compared with as little as 20% in traditional irrigation. While irrigated land makes up only 17% of all farmland, it produces 40% of the world’s crops.

The Green Revolution has been losing its momentum for a long time. Growth in world grain production slowed from 3% per annum to 1% over the last decade. Improper irrigation techniques cause some of the problems: too much water in the fields leave behind salts that build up in the soil and this ultimately leaves the land infertile.

Somehow the U.N. predicts that farmers will increase the area of land under cultivation by 27% over the next 18 years. Sustainable agriculture will develop without exhausting the land. Organic farming will become more attractive as fewer farmers will depend on chemical fertilizers, for example, beans replace the fields’ lost nitrogen.

Genetic manipulation will create more bountiful crops. Micro-irrigation will expand to more than the present 1% of all irrigated lands. Together all these trends could spur a Second Green Revolution –– one that would be less destructive that the first.