What is Crop Rotation?
Crop rotation is a planned sequence of growing different types of crops in the same field. Rotations are the opposite of continuous cropping, which is growing the same crop in the same field year after year. Ideally, these crops are not of the same Seeds.
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Why Do We Rotate Crops?
Crop rotation is a common practice on sloping soils because of its potential for soil reduction. Crop rotations can be used to better or maintain good physical, chemical, and biological conditions of the soil. They can be used to reduce the average rate of erosion from a field. Including a grass or legume in a rotation can be very effective for reducing erosion and improving soil structure. When a legume is used in the rotation, it may eliminate the need for nitrogen fertilizer. Other crops accumulate phosphorus or potassium. In addition crop rotation can be an important part of an integrated pest management (IPM) program.
The Value of Crop Rotation:
Plant Nutrition: Each crop uses different types and amounts of minerals from the soil. If the same crop is planted each and every year, over time the soil is depleted of the minerals essential for plant growth and health. In reverse, a different crop will sometimes return missing minerals to the soil as the plant dies and composts or is turned into the soil.
Soil Structure: Rotation preserves and improves soil structure. Crops have different root structures and grow to various depths. By rotating, the soil is not submitted to just shallow depth crops, but deep diggers that will slowly deepen the topsoil.
Insect Control: Insects can over winter in your soil. They enter the leaves and vines of your plants ready to reawaken in the spring to find their favorite meal. When you rotate, these insects are faced with a plant they don’t feed on
