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Crop rotation
 

Crop rotation

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Crop Rotation

Crop Rotation
Fruit and Vegetable Science
K. Jerome

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    Crop rotation Crop rotation Presentation Transcript

    • Crop Rotation
    • Dust Bowl, Irish Potato Famine linked to one crucial farming mistake: growing same crop in same piece of land year after year
      Dust Bowl – land depleted of nutrients
      Potato Famine – disease stayed in soil
    • Rotating crops is ancient practice
      Farmers in Ancient Rome, Africa and Egypt rotated their crop
      In England in Middle Ages farmers used three-year crop rotation of rye, oats or barley and nothing the third year
    • Definition of Crop Rotation
      Vegetable crops grown in different areas of garden in succession in consecutive years.
      Change type of plant grown on particular piece of land from year to year or season to season
    • Prevents buildup of soil-borne pests and diseases specific to one group of crops
      Prevents depletion of specific nutrients
    • Eachcrop tends to pull particular set of nutrients from soil depending on its particular needs.
    • Year after year of same crop allows certain pests and diseases to become comfortable
      Rotation confuses pests and keeps populations low
      Diseases don’t become established
    • used to build organic matter and soil nutrients that certain plants use during their life cycle
      .
    • Not only individual plants, but certain families of plants are subject to same diseases and should not be planted in the same area more than once every 3 years
      Potatoes, tomatoes, peppers, eggplants
    • Solanacea or nightshade family--tomato, pepper, eggplant, potato, tomatillo;
      Onion family--onions, garlic, leek, shallot, chives;
      Cucurbit or gourd family--cucumbers, muskmelon, watermelon, squash, pumpkin, gourd;
      Mustard or cole family--cabbage, broccoli, cauliflower, Brussels sprouts, kohlrabi, turnip, radish, Chinese cabbage, kale, collards, mustard greens, rutabaga;
      Legume or pea family--garden pea, snap beans, lima beans, soybean;
      Grass family (edible part is seed)--sweet corn, popcorn, ornamental corn;
      Carrot family (edible parts are roots, leaves, and leafstalk)--carrots, parsnip, parsley, celery;
      Goosefoot family--beet, Swiss chard, spinach;
      Sunflower family--lettuce, Jerusalem artichoke, endive, salsify;
      Bindweed family (edible part is root)--sweet potato;
    • Rotation Plan
      Crops planted in Bed 1 are planted in Bed 2 the following year, and in Bed 3 the year after that, and then Bed 4 and back to 1 again.
    • Green Manure
      traditional component of crop rotation is replenishment of nitrogen through the use of green manure crop
    • Crop rotation can also improve soil structure and fertility by alternating deep-rooted and shallow-rooted plants.
    • Irish Potato Famine could have been prevented by crop rotation to divert the spread of potato blight.
    • Vegetables usually divided into four groups to accommodate four-year rotation plan
      http://www.yankeegardener.com/resource/croprotate.html
      http://www.letsgogardening.co.uk/Information/CropRotation.htm