Crop Rotation
What is it?
Crop rotation is the practice of growing and rotating a variety of crops among plots on the same field to encourage crop resistance to pests and pathogens, improve soil conditions by not depleting soil nutrients, and improving soil nutrient content by growing cover or green manure crops. Crop rotation can decrease the amount of chemical application needed during the growing season.
Conservation Benefits
- Decreases the amount of fertilizer and increases effectiveness of pest management
What does it include?
Crops are selected for a field based on appropriateness to the region and soil. A management strategy is developed based on size of the field, crop varieties, crop nutrient depletion rates, crop nitrogen fixing capabilities, appropriate cover or green manure crops, and soil testing and monitoring schedules. Effective crop rotation will provide more productive fields that require less chemical application.
Crop Rotation Links
- Crop rotation (Maryland Cooperative Extension)
- Crop rotation (PennState Cooperative Extension)
- Crop rotations on organic farms (Center for Environmental Farming Systems)
- Crop rotation: a teacher's guide to planning crop rotation (Garden Organic)
Crop Rotation Bibliography
- Havlin et al. 1990. Crop rotation and tillage effects on soil organic carbon and nitrogen. Soil Science Society of America 54: 448-452.
- Liebman and Dyck. 1993. Crop rotation and intercropping strategies for weed management. Ecological Applications 3: 92-122.
- West and Post. 2002. Soil organic carbon squestration rates by tillage and crop rotation. Soil Science Society of America 66: 1930-1946.