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Farmers in upland area throughout the world face similar problems. They  generally cultivate feilds on moderately to severe sloping land with thin, easily eroded soils in areas where rainy season is short but intense.

出版物详细信息

  • 出版者: World Neighbors
  • Dewey Decimal: 631.586
  • ECHO 图书馆: 631.586 WOR
  • ECHO亚洲书库: SB.006