- Polyculture
Polyculture is agriculture using multiple crops in the same space, in imitation of the diversity of natural ecosystems, and avoiding large stands of single crops, or
monoculture . It includescrop rotation ,multi-cropping ,intercropping ,companion planting ,beneficial weed s, andalley cropping .Polyculture, though it often requires more labor, has several advantages over monoculture:
* The diversity of crops avoids the susceptibility of monocultures to disease. For example, a [http://www.mindfully.org/GE/Rice-Diversity-Yield.htm study] in
China reported in Nature showed that planting several varieties ofrice in the same field increased yields by 89%, largely because of a dramatic (94%) decrease in the incidence of disease, which madepesticides redundant.* The greater variety of crops provides habitat for more species, increasing local
biodiversity . This is one example ofReconciliation Ecology , or accommodating biodiversity within human landscapes.Polyculture is one of the principles of
permaculture .ee also
*
Agroecology
*Aquaponics
*Beneficial weed s
*Companion planting
*Forest gardening
*Heirloom plant
*Home gardens
*Integrated Multi-trophic Aquaculture
*Nurse crop
*gardens External links
* [http://www.satavic.org/cropping_systems.htm Crop rotation and polyculture]
* [http://ag.arizona.edu/OALS/ALN/aln48/hanzi.html Polycultures in the Brazilian drylands]
* [http://www.new-agri.co.uk/01-1/perspect.html Polyculture and disease prevention]
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