The growing of two or more
crops on the same field during the same year. All forms of multiple
cropping have the potential to utilize the soil more efficiently, resulting in
greater production from a given unit of land. This is especially true in
tropical or subtropical areas of the world with wet and dry seasons.
Where water for irrigation is available,
exploitation of the abundant solar energy in the dry season is possible.
Double, triple, and even quadruple cropping has dramatically increased food
production in some countries--making them exporters instead of importers of
food crops. Less dramatic increases can also result from other forms of
Beans (Phaseolus vulgaris L.),
for example, can complete their life cycle in dry periods, if fertilized and
relay planted in corn or maize (Zea mays L.) toward the end of the wet