The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 316
... agriculture . Experience in the developing countries has shown that agriculture can be made much more produc- tive with the proper investment in research , fertilizers , in- secticides , and herbicides . Improvement of irrigation sys ...
... agriculture . Experience in the developing countries has shown that agriculture can be made much more produc- tive with the proper investment in research , fertilizers , in- secticides , and herbicides . Improvement of irrigation sys ...
Page 324
... agriculture during the 19th century ; H.C. and A.D. TAYLOR , The Story of Agricultural Economics in the United States , 1840-1932 ( 1952 ) , a history of develop- ments in U.S. agricultural economics ; UNITED STATES DEPART- MENT OF ...
... agriculture during the 19th century ; H.C. and A.D. TAYLOR , The Story of Agricultural Economics in the United States , 1840-1932 ( 1952 ) , a history of develop- ments in U.S. agricultural economics ; UNITED STATES DEPART- MENT OF ...
Page 347
... Agriculture , " Am . Hist . Rev. , 75 : 1-36 ( 1969 ) , a consideration of the evidence for early agriculture in China ; HENRI FRANK- FORT , The Birth of Civilization in the Near East ( 1951 ) , an account of agriculture at the ...
... Agriculture , " Am . Hist . Rev. , 75 : 1-36 ( 1969 ) , a consideration of the evidence for early agriculture in China ; HENRI FRANK- FORT , The Birth of Civilization in the Near East ( 1951 ) , an account of agriculture at the ...
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accelerator acid activity Adams administrative advertising Aeschylus aesthetic Africa agriculture animals appear become body called Central century changes contains continued cost countries crops cultural dance early East effect electrons elements engineering established example farm feet field figures flight followed function human important increase industry influence Italy Khoisan Knossos known Lake land languages later less living major materials means ment natural occur operations organization original patterns percent performance period plants play political population present production range region remains represented result River society sound South southern species structure style theory tion traditional United usually variety West Western widely