C. Sequence Cropping or Sequential Cropping or Crop Rotation:

• It can be defined as growing of two or more crops in a sequence on same piece of land in a farming year. The succeeding crop is planted after the preceding crop has been harvested.

• Crop variation is done with respect only to time. There is no intercrop competition. Its various types are:

o Double Cropping: Growing two crops on the same land in a year in sequence. Ex. rice→cotton

o Triple Cropping: Growing three on the same land in a year in sequence. Ex. Triple cropping: rice→rice→pulses

o Quadruple: Growing four crops on the same land in a year in sequence. Ex. tomato→ridge gourd→amaranthus greens→baby corn.

(NOTE: The various terms defined above bring out essentially two underlying principles of growing crops simultaneously in mixture, i.e., intercropping; and of growing individual crops in sequence, i.e., sequential cropping. The cropping system for a region or farm may comprise either or both of these two principles).