Multiple cropping is the growing of more than one crop in the same land in one year. For example, buckwheat may be grown after harvesting peas . Both crops are grown as monoculture crops, but they are planted and harvested within one year.
Mixed cropping is the growing of two or more crops simultaneously and intermingled , with no row arrangement.
Intercropping is the growing of two or more crops in alternate rows , for example, maize alternating with soybean.
Relay planting is the practice of interplanting of the maturing crop with seeds or seedlings of the following crop.
Interplanting is the practice of planting a short-term annual crop with a long-term annual or biennial crop. Oats and alfalfa, for example, are commonly interplanted in the temperate zone.
Interculture is the cultivation of one crop underneath a perennial crop, such as rice under coconut palm.
Polyculture is the dominant farming system in many areas of the tropics, where the degree of mechanization and the use of agricultural chemicals remain low.