Rapid population growth since the turn of the century has led to an exhaustion of the land frontier in most countries across the world causing a decline in arable land per capita. Traditional societies across the world have devised remarkably similar means of coping with reductions in per capita land availability. This paper highlights the farmer based and modern technological options available to societies for achieving growth in agricultural output...
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详细
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1984/10/31
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工作文件（编号系列）
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ARU24
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1
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1
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2020/05/17
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Disclosed
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Population density and farming systems : the changing focus of innovations and technical change
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farmer