Question

what is crop rotation.?????????????????????????​

Answer 1

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Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. It reduces reliance on one set of nutrients, pest and weed pressure, and the probability of developing resistant pest and weeds.

Growing the same crop in the same place for many years in a row, known as monocropping, gradually depletes the soil of certain nutrients and selects for a highly competitive pest and weed community. Without balancing nutrient use and diversifying pest and weed communities, the productivity of monocultures is highly dependent on external inputs. Conversely, a well designed crop rotation can reduce the need for synthetic fertilizers and herbicides by better using ecosystem services from a diverse set of crops. Additionally, crop rotations can improve soil structure and organic matter, which reduces erosion and increases farm system resilience.

Answer 2

Answer:

It is a practice of crops in different seasons on the same land, on rotational basis, to replenish the soil with nutrients. For example, the farmers grow wheat crop alternately with pea,gram or groundnut crop...these crops are leguminous crops.A nitrogen-fixing bacteria Rhizobium, lives in root nodules of these plants..by fixing atmospheric nitrogen, this bacterium replenish nitrogen content of soil nd increase its fertility..

Explanation:

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