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A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · X · Y · Z   entire Web this site crop rotation The soil of an area that has the same plant in it year after year can become stripped of certain nutrients. To avoid this result, it is necessary to plant different species yearly. Planting species that require other nutrients or that can replenish the soil of a depleted nutrient ensures a healthy soil over the long term and is thus sustainable. Related categories    • AGRICULTURE    • ECOLOGY AND THE ENVIRONMENT Also on this site: Encyclopedia of Science Encyclopedia of History BACK TO TOP