作者: R. Dudal , J. Hrabovszky , A. Pécrot
DOI: 10.1007/978-3-642-68141-7_3
关键词: Production (economics) 、 Food processing 、 Soil water 、 Agroforestry 、 Population 、 Geography 、 Agriculture 、 Developing country 、 Agricultural productivity 、 Agronomy 、 Upland rice
摘要: Projections reveal that agricultural production will have to increase by 60 percent in the next 20 years sustain world’s population year 2000. In a study dealing with agriculture 90 developing countries towards end of this century, FAO estimates 72 need come from intensification existing and 28 further expansion cultivated area (FAO, 1979). These figures are averages for all regions major food crops.