The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 42
... agriculture , the consequences were dif- ferent . In the Asiatic homelands of Western agriculture there is widespread evidence of serious soil damage and loss during ancient times . Destruction of vegetation and the spread of deserts ...
... agriculture , the consequences were dif- ferent . In the Asiatic homelands of Western agriculture there is widespread evidence of serious soil damage and loss during ancient times . Destruction of vegetation and the spread of deserts ...
Page 48
... agriculture depends upon the continued addition of chemical fertilizers to the soil . Usually these substances are added in mineral form , but nitrogen is often added as urea , an organic com- pound . Early in agricultural history it ...
... agriculture depends upon the continued addition of chemical fertilizers to the soil . Usually these substances are added in mineral form , but nitrogen is often added as urea , an organic com- pound . Early in agricultural history it ...
Page 945
... Agriculture . The economy is based primarily on agriculture . About 90 percent of all foreign exchange comes from the country's farms and pastures . Sugar , tobacco , cacao , coffee , hides , fruits , and tomato paste are the most ...
... Agriculture . The economy is based primarily on agriculture . About 90 percent of all foreign exchange comes from the country's farms and pastures . Sugar , tobacco , cacao , coffee , hides , fruits , and tomato paste are the most ...
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