Precision application of agrochemicals is an exciting and active area of research where pesticides and fertilizers are applied only where they are needed and at the appropriate concentration to elicit an optimum response. This approach requires accurate information on soil fertility and pest activity and an applicator that can automatically vary the application rate as desired.
The mechanization of farming in developing countries has been very uneven. In certain parts of Africa, in Java, and in many hilly regions, farmers still till their fields with hand tools even though animal tillage has been common in other parts of the world for thousands of years. While draft animals have completely disappeared in North America, Europe, and Japan, they have been widely accepted in Senegal only in the past few decades.