Question

what is multiple cropping Explain it?​

Answer 1

Answer:

In agriculture, multiple cropping or multicropping is the practice of growing two or more crops in the same piece of land during one growing season instead of just one crop.

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Answer 2

Answer:

Multiple cropping is a form of Ecological Intensification that is potentially highly sustainable when two or more crops are grown at the same time or in a sequence.[1] It does this by balancing three key ecological processes: competition, on the one hand, and commensalism (one plant gaining benefits from the other) or mutualism (both plants benefitting each other) on the other.[2] Typically, farmers will plant crops as close together as possible to utilise all the available land. When different crop species or varieties are grown together, the competition may be fierce; ‎trees grown in a maize field, for example, may shade out the crop. But this can be compensated for by determining the optimal spacing and by exploiting various forms of commensalism or mutualism, for example where the tree may be a legume, providing nitrogen for the crop plant beneath.

There are numerous examples of multiple cropping:[3]

Intercropping: interspersion of different crops on the same piece of land, such as a home garden, either at random or more commonly in alternate rows usually designed to minimise competition but maximise the potential for both crops to make use of the available nutrients, such as nitrogen supplied by a legume.

Rotations: the growing of two or more crops in sequence on the same piece of land.

Agroforestry: annual herbaceous crops are grown interspersed with perennial trees or shrubs. The deeper-rooted trees can often exploit water and nutrients otherwise unavailable to the crops. The trees may also provide shade and mulch, creating a microenvironment, whilst the ground cover of crops reduces weeds and prevents erosion.

Sylvo-pasture: similar to agroforestry, but combines trees with grassland and other fodder species for livestock grazing. The mixture of shrubs, grass and crops often supports mixed livestock populations.

Green manuring: the growing of legumes and other plants to fix nitrogen and then incorporate the nutrients into the soil for the following crop. Commonly used green manures are Sesbania and the fern Azolla, which contains nitrogen-fixing, blue-green algae in ricefields.

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