Scientists have developed a model to calculate the age of nitrogen in corn and soybean fields, which could lead to improved fertilizer application techniques to promote crop growth while reducing leaching. Nitrogen, a key nutrient for plants, can cause problems when it leaches into water supplies.
Rapid population growth and crippling economic problems in many African countries have reduced living standards and adversely affected eating habits, causing widespread malnutrition. In Nigeria, a faltering economy has led to declining imports of costly protein-rich food. Moreover, currency devaluations in other countries have resulted in drastically reduced imports of oil and animal feed.