The most traditional and widely used farming systems in the humid upland tropics are based on fallowing and various forms of slash-and-burn agriculture. Their sustainability depends on the duration of the fallow; as long as the fallow stage is longer than seven or eight years, slash-and-burn systems usually remain efficient. They produce a moderate yield using a low-input technology that is especially efficient in terms of returns to labor. With a...
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详细
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2004/04/01
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出版
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28987
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1
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1
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2010/07/01
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From slash and burn to replanting : green revolutions in the Indonesian uplands
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tree crop