@book {342,
	title = {Improved production systems as an alternative to shifting cultivation},
	series = {FAO Soils Bulletin no. 53},
	year = {1984},
	month = {1984},
	pages = {201},
	publisher = {Food and Agriculture Organization of the United Nations},
	organization = {Food and Agriculture Organization of the United Nations},
	address = {Rome},
	abstract = {Shifting cultivation, under its diverse forms of slash and burn systems, is a traditional method of cultivating tropical upland soils, mostly for subsistence purposes. During the rest or fallow periods intervening between crops, the natural fertility of the soil is restored for renewed utilization in a subsequent period of crop growth. This traditional system of cultivation is in ecological balance with the environment and does not irreversibly degrade the soil resource, provided a sufficient length of fallow is allowed for soil restoration.},
	keywords = {agricultural systems, agroecology, agroforestry, alley cropping, appropriate technology and intermediate technology, climate, farming systems, horticulture, livestock, rainfall, research , shifting cultivation, soil management, watersheds},
	isbn = {92-5-102121-X},
	url = {http://www.worldcat.org/oclc/11418879},
	author = {Food and Agriculture Organization of the United Nations (FAO). Soil Resources, Management and Conservation Service}
}
